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Q : How to anti-freeze for laser system chiller? A : Three tips to guard your water chiller through winter. Working 24 hours Run the chiller for 24 hours per day and make sure the water under recirculation status. Empty the water Empty the water inside the laser, laser head and chiller after done with using. Add antifreeze Add antifreeze into the water tank of chiller. S&A recommends the antifreeze which is exclusive used for automobile. Note: all kinds of antifreeze contain certain corrosive property, not to be used for long period. Please use clean pipes with deionized water or distilled water after winter, and refill deionized water or distilled water as the cooling water. Warm Note: because antifreeze contains certain corrosive property, please dilute it strictly according to usage note before adding into cooling water. Antifreeze Tips Antifreeze usually uses alcohols and water as base with high boiling point, freezing point, specific heat and conductivity for anti-corrosion, anti-incrustant and rust protection. Three important principles of chillers antifreeze need to aware during usage. 1. The lower concentration the better. As most antifreeze with corrosiveproperty,the concentration will be the lower the better under condition of antifreeze requirement meet. 2. The shorter usage period the better.Antifreeze will deteriorate after long time use, the corrosive will stronger and viscosity will change. So need to replaceregular, recommend to replacing after 12 months usage.Use pure water at summer, and replace new antifreeze at winter. 3. Don`t mix up. Better use the same brand antifreeze. Even the main components are the same for different brandsantifreeze, the additive formulas are different, so don`t suggest combine different brands antifreeze, in case chemistry reaction, sediment or air bubble happen. Q : Tips on Water Chiller Maintenance A : Before holiday A. Drain out all the cooling water from the laser machine and the water chiller to prevent the cooling water from being frozen in non-working status, for that will do harm to the chiller. Even though the chiller has added anti-freezer, the cooling water should be all drained out, for most of the anti-freezers are corrosive and it is not suggested to keep them inside the water chiller for a long time. B. Disconnect the power of the chiller in order to avoid any accident when no one is available. After holiday A. Fill the chiller with certain amount of cooling water and reconnect the power. B. Turn on the chiller directly if your chiller has been kept in an environment above 5℃ during the holiday and the cooling water doesn`t get frozen. C. However, if the chiller has been kept in an environment below 5℃ during the holiday, use the warm-air blowing device to blow the internal pipe of the chiller until the frozen water defreeze and then turn on the water chiller. Or just simply wait for some time after water filling and then turn the chiller on. D. Please note that it might trigger flow alarm due to the slow water flow caused by the bubble in the pipe during the first-time operation after water filling. In this case, restart the water pump several times every 10-20 seconds. Q : Chiller turned on but unelectrified A : Failure Cause: A. Power cord is not plugged in place Approach: Check and ensure the power interface and the power plug is plugged in place and in good contact. B. Fuse burnt-out Approach: Replace the protective tube in the power socket on the back of chiller. Q : Flow Alarm (controller displays E6)use a water pipe directly connect to the water outlet and inlet but still without water flowing A : Failure Cause: Water level in the storage water tank is too low Approach: Check the water level gauge display, add water until the level shown in the green area; And check whether water circulation pipe leaks. Q : Flow Alarm occurs while running with other equipment (controller displays E6),but there is water flowing and no alarm whten use a water pipe directly connected to the chiller water outlet and inlet. A : Failure Cause: Water circulation pipes are blocked or a pipe bending deformation. Approach: Check water circulation pipe Q : Ultra-high temperature alarm (controller displays E2) A : Failure Cause: A. Blocked dust gauze, bad thermolysis Approach: Unpick and wash the dust gauze regularly B. Poor ventilation for air outlet and inlet Approach: To ensure a smooth ventilation for air outlet and inlet C. Voltage is extremely low or astable Approach: To improve the power supply circuit or use a voltage regulator D. Improper parameter settings on thermostat Approach: To reset controlling parameters or restore factory settings E. Switch the power frequently Approach: To ensure there is sufficient time for refrigeration (more than 5 minuets) F. Excessive heat load Approach: Reduce the heat load or use other model with larger cooling capacity Q : Ultrahigh room temperature alarm (controller displays E1) A : Failure Cause: The working ambient temperature is too high for the chiller Approach: To improve the ventilation to guarantee that the machine is running under 40℃. Q : Serious problem of condensate water A : Failure Cause: Water temperature is much lower than ambient temperature, with high humidity Approach: Increase water temperature or to preserve heat for pipeline Q : Water drains slowly from outfall during water changing A : Failure Cause: Water supply inlet is not open Approach: Open the water supply inlet

Dairies require accurate temperature control. There is only once chance to cool the milk, so you`ve got to get it right. Many years ago it was determined that maintaining milk at a cool temperature preserves it. By utilizing a water chiller, the milk is cooled and preserved. What does the dairy water chiller do for dairies? A chiller provides a reservoir of ice water to rapidly cool milk in the vat after processing or after milking. The ice water is pumped out of the chiller and circulated through the water jacket of the pasteurizer and then returned to the glycol water chiller. For faster cooling, food grade propylene glycol can be added to the water to lower the freezing point. Who needs a chiller? Not every processing operation requires a chiller. Water chillers are necessary if you are using the vat as a bulk tank and need to cool the milk to storage temperature (<45 degrees) or if you are bottling milk. Milk must also be cooled to 45 degrees before being bottled and you will need some method of chilling the milk. Note that many cheese makers and yogurt makers do not need chillers because they can just run tap water through the vat to cool the milk to culturing temperature (typically 110 degrees to 85 degrees). Yogurt can be packaged at culture temperature. BV Thermal System offers user friendly portable water chillers that easily integrate into your dairy process. Engineered for a production environment, designed for easy set up and manufactured with highly reliable, cost effective components.

There is so much more that goes into the milk cooling process than most people think. The dairy industry has evolved rapidly over the years, specifically in regard to the way the dairy farm produces milk. Milk Cooling: Just a few years ago, the average dairy farm worked on a pretty simple process. The milk was generally pumped from the cows and then sent straight to a refrigerated storage tank. The milk was then cooled over time and delivered by truck loads to local stores. Dairy farms were pretty much all designed the same and were relatively the same size. There was not room for growth or expansion, and the tank that was used 20 years ago at these dairy farms was still capable of maintaining the farm's milk supply in the present. New Changes: Just like everything in life, things are constantly changing. Many milk producers are installing larger variable sized milking parlors that can service as many as eighty cows at one time in extremely large operations. In order to rapidly cool such large amounts of milk safely, dairy farmers have turned to process water chiller. Process chillers offer computer controlled cooler tanks, and can have the cooler and refrigerant systems do most of the work. Getting milk to the right temperature has never been easier. The Future: As dairy farms expand, upgrading cooling systems is not the only change taking place. Many milk producers are adding combinations of process chillers and plate heat exchangers. Plate heat exchangers are run by water or glycol. This addition to the process can pre - cool milk before it reaches the milk cooler, and save some of the work and energy placed on the cooler. Technology: Computer controlled, energy efficient dairy water chiller can be used before the milk reaches the tank cooler. Technology changes and advancements are always happening around us, and the dairy industry is no different. As dairy farms grow in size to meet new demands, the need for more reliable and cost effective energy efficient coolers are growing. To learn how a process chiller from Amrta can help your dairy business, visit us at www.amrtaac.com.

Choosing a process water chiller for your HVAC needs can be quite the hassle. There are so many different types of HVAC cooling systems out there. Systems include rooftop packaged unit, variable refrigerant flow (VRF) systems, geothermal or air source heat pump systems, and many others. With all of the options available to manufacturers, process chillers still seem to be the HVAC system of choice for large commercial buildings and other facilities. But the process chiller`s popularity has not stopped competing technologies from trying to gain the top spot by manufacturers. Process chillers offer design flexibility, better comfort, and lower total life cycle costs – all of which can make them a perfect choice for high performance buildings. Choosing Your Water Chiller The main concern with any building is energy efficiency, which is the process chiller`s best quality. Water cooled chiller with capacities of 400 tons are more efficient than any other mechanical cooling technology. Water cooled chillers can also function over a wide operating envelope. Warmer water temperatures with a cooling tower can increase energy savings. Air cooled water chiller can minimize your compressor run time, which will also increase energy savings. Process chillers are the most efficient choice when deciding how to get the best performance, sustainability, functionality, productivity, and cost efficiency. Pricing and Advances The cost of HVAC equipment can be a scary thing to building owners, but process chillers can relieve some of this fear, depending on the size and type of the system. Today, air and water cooled chillers offer the flexibility to minimize cost while providing the maximum return on investment. Today`s chillers focus on improving efficiency where needed. Proper scheduled maintenance of a chiller can also expand the life of your equipment, saving you money in the long run. Heat Recovery Heat recovery is an aspect of a chiller system that can be great in a high performance building. Chillers with heat recovery reduce the amount of power needed to reject heat while reducing the amount of purchased heat required. This can reduce operating costs and lower the emissions output through the reduction of burned fossil fuels, such as natural gas. Free Cooling / Energy Storage Free cooling and thermal energy storage are additional chiller system advancements that are great options for high performance building owners. Free cooling is a refrigerant migration feature that can provide up to 45 percent of the nominal chiller capacity without running the compressor, which can reduce energy use and annual operating expenses. An energy storage system is a chiller that gets very cold and produces ice during off hours. This energy is then used to help cool buildings during the daytime hours. Ice enhanced cooling systems use less electricity, reducing costs and also helping the environment. There are so many reasons building owners and managers should consider process water chillers for their high performance buildings. Chiller technology keeps advancing and the opportunities for energy efficiency are sure to keep improving.

Why the temperature drops not be as fast as before? Some end users who use water chiller may have such experience, no matter what the chiller is. After using chiller for some period, they would feel that the cooling performance is worse than before. And that`s why chiller maintenance should be done regularly. The industrial water chiller is a device that provides constant temperature, constant current. They are widely used in the pharmaceutical industry, food industry, plastics industry, machinery industry and other fields. For this question, persons familiar with water chillers stated that generally speaking industrial chillers have a certain life expectancy. The good quality chiller can be used for more than ten years if used carefully and maintained regularly. [If the chiller was overloaded for a long period of time, the components of the industrial glycol chiller may be affected, which would lead to various failures in the industrial chiller," said a cooling specialist. There are many reasons for the poor cooling effect of industrial chillers, and the common reason is that industrial chillers were not maintained regularly. [If they were not regularly maintained, it will easily lead to more dust in internal parts of the industrial chiller, and the heat can not be effectively taken away. Also the equipment is in a high load running state for a long time, so the cooling effect is not as good as before." Normally, as long as the cooling capacity is matched with the heating equipment, except for the failure of the industrial scroll and screw water chiller, the reason for the poor cooling effect of the industrial chiller is that the chiller was not maintained regularly. Therefore the maintenance of the chiller affects the cooling effect of the equipment. According to reports, in the process of using industrial chillers, users should dismantle and clean the dust-proof net of the chiller regularly, clean the dust on the condenser of the chiller, and periodically replace the circulating cooling water (pure water or distilled water) if there is an auxiliary industrial chiller. Filters require periodic replacement of filter elements to ensure clean water. In addition, the operating temperature of the industrial chiller cannot be too high. If the ambient temperature of the industrial chiller is relatively poor, the cooling effect of the chiller will also be affected. Some customers have also raised questions about what to do if they encounter a situation where the industrial chiller has a poor cooling effect due to the cause of the malfunction. The chiller that causes the cooling effect of the chiller to deteriorate is generally in two situations and can respond according to the corresponding problem. First, there is a problem with industrial chiller thermostats that cannot achieve temperature control. It is recommended to contact the after sales technicians to replace the thermostat. Second, the cooling system leaks refrigerant. It is advisable to contact the after sales technician to find the missing point. And refill the refrigerant. Except for regular maintenance, use the equipment rationally. The author believes that when companies use industrial glycol water chiller, the correct operation method is also very important. Only the correct operation method can guarantee the normal and stable operation of industrial chillers. If there are too many erroneous operation behaviors, it will directly affect the normal use of the equipment. In severe cases, even more failures will occur, affecting the cooling performance of industrial chillers. Therefore, when companies are using industrial chillers, they need to learn the correct operating methods, regular maintenance, in order to ensure the correct operation of the equipment, and extend the life of the equipment.

The crowded 2018 Chillventa show was a mirror image of what is happening in the HVAC/R market. The HVAC/R sector continues to grow in volume, influenced by the increase in average temperatures, the growing need for personal well - being and the optimisation of production processes and quality of the food chain. The consequent rising interest among industrial funds towards the sector and consolidation by industrial groups through mergers and acquisitions has supported and is continuing to support the drive to technological innovation. We can refer to this as [smart" innovation, given that it concerns connectivity, natural refrigerants, electrification and integration with renewable energy, and simple human - machine interaction; in other words, all areas that contribute to making the undeniable opportunities offered by HVAC/R more accessible and socially acceptable. In terms of refrigerants, at Chillventa 2018 important developments were seen regarding solutions using R32 and R452B / R454B, useful for reducing the presence of R410A during the transitional period leading up to 2021 and the next important phase down of so called F - Gases. ( The regulation puts in place HFC phase down from 2015 to 2030 by means of a quota system and sectorial bans on high GWP refrigerants ). Even though the R452B / R454B solutions are desirable as a replacement for R410A, more interest was seen in the more economical R32 solution, above all as it is fully compatible with the value chain. However, we should underline the two problems concerning the solutions mentioned. They are in fact category A2L refrigerants, that is, slightly flammable, and therefore require precautions that don`t allow the possibility of pin to pin drop in with R410A. Yet above all they are also HFCs, therefore, even if to a lesser extent, they are also subject to the phase-down that could gradually limit their use starting from 2021. This is probably one of the reasons why we saw particular interest in natural refrigerants, CO2 and propane, now no longer limited to commercial air conditioner refrigeration, but rather already tested or being adopted in HVAC, for example in the following applications: Transport Process Active heat recovery Residential heat pumps and in other niche applications, including medical. This clearly involves a major effort in terms of design and correct value proposition to the market, as both refrigerants have obstacles that need to be overcome; however this choice allows the most innovative air conditioning manufacturers to be ready before the 2021 deadline.

The printing industry features a multitude of different technologies that can be used, from traditional printing (such as offset printing, rotogravure printing, screen printing, etc.) to digital printing (for example, inkjet or laser). The processes underlying these technologies are quite different, but they all share one need: to control humidity in the processing and storage environments. Storing or printing paper in a place where humidity is outside of the specified range can lead to a significant COST item, due to lost productivity (machinery stoppages) and rejects (print defects or low quality products). What are the reasons for these problems? Firstly, dimensional variations and the loss of substrate flatness. Paper is a hygroscopic material that, when its moisture content is not in equilibrium with the humidity of the surrounding air, gives up or absorbs moisture, thus varying its dimensions. For example, for a 16 x A4 print sheet, a 10% variation in ΔRHroom can create a 2 mm difference! In order to properly feed the printing machinery and allow the suction bars to pick up the print substrates correctly, the latter must be positioned perfectly flat. Any dimensional variations may, however, compromise correct positioning, and therefore paper feed. In addition, printing defects due to MISREGISTER may occur, meaning the printing units do not release ink in the position defined by the screens, creating an image that is blurry and without defined edges. As reported by ASHRAE in ASHRAE 2015 APPLICATION A20 printing plants, printing problems caused by paper expansion and contraction can be avoided by controlling the moisture content throughout the manufacture and printing of paper. A reliable humidity control system is therefore necessary to ensure process continuity and product quality. Secondly, ambient humidity can affect the paper's ink receptivity, in other words the ability of the substrate to accept and stabilise the ink received from the printing plate. Humidity, in fact, is one of the factors that determines ink drying times. The ink needs to dry quickly to avoid any halos or irregularities. High paper moisture content makes it more difficult to absorb the ink that remains on the surface, affecting colour uniformity and intensity. Keeping humidity below 60% RH and at temperatures between 20-25°C ensures favourable conditions for drying. Higher humidity can in fact cause drying times to be up to three times longer than in standard conditions. What about digital laser printing? In this case, humidity variations can change the rigidity of the substrate, i.e. its ability to accept and stabilise the toner, resulting in uneven printing, faded areas, or cracks in full areas. In inkjet printing and laser printing, therefore, good results cannot be guaranteed unless the humidity conditions in the processing environments are not kept under control.

Why plastic process chiller? Process cooling in plastic processing is necessary as considerable amounts of heat have to be removed from the material, mold or machine, such as plastic injection, plastic extruding (sheet extrusion or profile extrusion), bottle blowing and film blowing etc. Before shaping, thermoplastic materials such as polypropylene, nylon and PET etc thermoplastic must be heated to their molten temperature. When molten, they can then be manipulated (injection molded, extruded etc) to a new shape. Finally they must be solidified them via cooling. what plastic process chiller do? Cool the hot plastic that is injected, blown, extruded or stamped to maximize productivity and improve the quality. cool down the plastic process equipment that is used to produce plastic products, such as hydraulics of the molding machine, gear box and barrel of the extrusion machine, to save energy and extend lifetime of the machine. We are professional to design any independent water chiller as per you cooling requirement, for any types of plastic pressing machine, such as plastic injection machine, sheet extrusion machine, profile extrusion machine, bottle blowing machine, film flowing machine, etc. Contact us now and you will be satisfied with: Free diagnose – our refrigeration engineer will study your cooling demand in details. Cooling capacity calculation – Cooling solutions will be given after detailed calculation. Customized designs – Coolsoon plastic process chillers can be designed in various style according to your exact demands. Reliable quality – Top brand components and qualified workmanship. Reasonable pricing – Affordable price for Amrta plastic machine water chiller but with top quality. Reliable customer service – friendly pre - sale consultation and after sale support.

Wondering how to size a brewery water chiller? Here is a step by step guide. Read every word or just follow the examples. If you need help, our sales engineers will be happy to assist you. I. Calculate The Pull Down Loads (Crashing) Pull down occurs when you are dropping the temperature (i.e. pulling down the temperature) of your fermenters and (other than wort cooling) is the largest cooling load. You will need to know the size of your tanks, temperature drop and time you have to achieve the desired temperature. 1. Calculate the total volume in gallons for fermenters pulling down simultaneously A. 1 bbl = 31 gallons so a 7 bbl tank = 217 gallons Example: Let`s assume we have three, 7 bbl tanks. 217 x 3 = 651 gallons 2. Multiply the total gallons by 8.33 to get total pounds Example: 651 gallons x 8.33 = 5,422.83 pounds 3. Multiply the total pounds by your temperature difference A. Commonly that is 75F degrees minus 34F degrees or 41F degrees Example: 5,422.83 pounds x 41 = 222,336.03 total Btu 4. Divide by the hours of your pull down (crash). Example: 222,336 / 24 hours = 9,347.33 Btu/hr If your pull down time is 12 hours, you would need 18,528 Btu/hr. 222,336 / 12 = 18,528 Btu/hr This is the Btu/hr required for your pull down process. Many brewers will add 10% or 15% to this number to compensate for extra heat being added by the pumps, heat loss and inefficiencies of their systems. II. Calculate heat load for active fermentation 1. Multiply the total bbl`s by 15 bricks. Example: 21 Bbls x 15 = 315 2. Multiply by 280 Btu / brick Example: 315 bricks x 280 Btu = 88,200 Btu 3. Divide by 70 hours A. 70 hours is the typical time frame that most of the heat gain from the yeast occurs, even if/when the fermentation period is more than 75 hours. Example: 88,200 / 70 = 1,260 Btu/hr. III. Add the pull down load and the active fermentation load together for your total fermentation Btu/hr load Example: 18,258 Btu/hr plus 1,260 Btu/hr = 19,518 Btu/hr IV. Cold Liquor Tank (CLT) 1. Calculate the total volume in gallons of CLT A. 1 bbl = 31 gallons so a 7 bbl tank = 217 gallons Example: Let`s assume we have three, 7 bbl tanks. 217 x 3 = 651 gallons 2. Multiply the total gallons by 8.33 to get total pounds Example: 651 gallons x 8.33 = 5,422.83 pounds 3. Multiply the total pounds by your temperature difference of your water source minus target CLT temp. A. 75F degrees minus 34F degrees or 41F degrees Example: 5,422.83 pounds x 41 = 222,336.03 total Btu 4. Divide by the hours of your recovery time (time between batches) Example: 222,336 / 24 hours = 9,347.33 Btu/hr If your recovery time is 12 hours, you would need 18,528 Btu/hr. 222,336 / 12 = 18,528 Btu/hr This is the Btu/hr required for your CLT. Many brewers will add 10% or 15% to this number to compensate for extra heat being added by the pumps, heat loss and inefficiencies of their systems. V. Wort Cooling. 1. Calculate the total volume in gallons of your brewhouse A. 1 bbl = 31 gallons so a 7 bbl brewhouse = 217 gallons Example: Let`s assume we have three, 7 bbl tanks. 217 x 3 = 651 gallons 2. Multiply the total gallons by 8.33 to get total pounds Example: 651 gallons x 8.33 = 5,422.83 pounds 3. Multiply the total pounds by your temperature drop A. 85F minus 75F = 10F Example: 5,422.83 pounds x 10 = 54,228.30 total Btu 4. Divide by the hours of your recovery time (time between batches) Example: 54,228 / 1 hour = 54,228 Btu/hr If your recovery time is 30 min., you would need 108,456 Btu/hr. 54,228 x 2 = 108,456 Btu/hr. This is the Btu/hr required for your wort. In most breweries, 100% of the water chiller load will be diverted for 2nd stage wort cooling, until the desired temperature is achieved, the diverted back to the tank cooling. Wort cooling is typically achieved in one hour or less with minimal impact on tank cooling. VI. Apples VS Apples In the above example you will need a water cooled chiller capable of providing a minimum of 19,518 Btu/hr @ 28F Leaving Glycol Temp. 1. Make sure that the chiller your are purchasing is sized properly. In our example, Amrta chiller needs to be able to provide 19,518 Btu/hr @ 28F Leaving Glycol Temp. Chillers in the US are sized by either tonnage or horsepower. In either case, you want to make sure that the chiller also factors in your glycol percentage. Typical glycol percentages are 30% to 40% glycol to water depending on your lowest outdoor air temperature where you live or 28F degrees (whichever is lowest). Propylene glycol will require more surface area in the heat exchanger than will water. NOT ALL CHILLERS ARE CREATED EQUAL You don't need to know all of the details that are explained in this paragraph, if you remember that all chillers are not equal and know to ask for a chiller that is capable of cooling your Btu/hr load down to 28F leaving glycol temp. or whatever your coldest chilled fluid temperature that you will need for your process. If you are a detail person and want to know more, please read on! Chiller capacities are based upon many factors. The major factors are fluid temperatures, ambient air conditions, fluid being cooled and compressor performance data. A refrigeration ton = 12,000 Btu/hr. Many chillers are rated for air conditioning standards, which are 44F leaving fluid temp. / 54F entering temp. and 2.4 gallons per minute per ton. A brine water chiller will need more horsepower than an air conditioning chiller. In fact, an air-conditioning chiller may not operate properly or may not operate for very long due for a brewery due to the lower temperature required for a brewery. Operating at lower temperatures than what the chiller is designed for can also cause the compressor to fail prematurely. Amrta Chillers engineers its brewery chillers to perform at brewery conditions. When ordering, we ask for your conditions to make sure the chillers are sized and engineered accordingly. In our sizing example above, at a quick glance, it would appear that a 2 ton chiller would be sufficient (2 x 12,000 Btu/hr = 24,000 Btu/hr). BUT, we need to know the design standards of the chiller. The cooler the fluid, the more compressor horsepower and the larger the evaporator (heat exchanger) required. The evaporator will also need to be larger when cooling glycol VS cooling water. In air-conditioning, where 44F is the desired fluid temperature, glycol may not be needed (especially if the air-conditioning chiller is being installed in a warm climate). Make sure that you are calculating your worse case scenario based on the amount of brewing that will take place simultaneously. This is the time to consider any plans for future growth. If that growth is in the near future, it may be beneficial to oversize the chiller now so that you aren`t forced to purchase additional equipment later. Of course, if your planned growth is substantial or you are over sizing the chiller by a great amount, you could have adverse results if some sort of capacity control isn't built into the chiller. If your growth is more than 2 years out, you may be better off to purchase a smaller chiller now and add additional modules later. As you can see, there are many factors to consider when purchasing a chiller, but with the proper engineering of your system, your brewery chiller should last for many years. If you need help sizing your brewery chiller, please contact a sales representative at info@amrta.com.cn. We are happy to assist you. Cheers & Happy Brewing!

Amrta industrial air cooled screw water chiller is built to last. This industrial water chiller is used in a variety of process cooling applications. All of air cooled screw chillers are built STANDARD with COATED plate fin condensers and stainless steel hardware in order to survive in the harshest chemical and coastal environments. Chillers range in size from 30 tons to 400 tons. They are used most often in industrial applications, such as plastics extrusion cooling, injection mold cooling, plating & anodizing cooling, food process cooling, and many others. Plastics Extrusion and Injection Mold Cooling Plastic is one of the most enduring inventions of the modern world. It`s hard to imagine our lives without it. We use plastic to eat with and to make our children`s toys - and even the precious computers we use every day have plastic components. But before those plastics become something other than plastic, they must be shaped and cooled, either during a plastic extrusion or injection mold process. Amrta air cooled water chiller is the perfect machine for that job, designed as a closed loop system to prevent any environmental debris from mixing in with the process water. Water contamination can ruin a plastic product and is a very common problem. Our air cooled screw chiller can save you dramatically by reducing product loss. Plating & Anodizing Cooling Plating - either electroplating or electroless plating - is becoming a major industry as more industries are looking for metal finishing experts to complete their products. Plating metal requires a tremendous amount of heat, which you then must remove. You need strong industrial screw chillers for that kind of job, which is just what we provide. Our 30 ton air cooled screw chiller is just what you need for anodizing applications. Even if you find your current cooling method is working, we are confident you will find using our industrial screw chillers for your cooling needs will be far more convenient and efficient. Food Process Cooling When making food for human consumption, keeping your food products free from bacteria or other contaminants that could poison those who consume it is the number one priority. A few people getting sick could ruin a food processing business, let alone if something worse happens. One of the best ways to prevent food from going bad is to control the temperature, as most bacteria cannot survive in extremely low temperatures. A 30 ton air cooled screw chiller from Amrta is exactly what you need to make sure your food stays as cold as it needs to be through your process so it comes out suitable for delivery and consumption by your customers.

Amrta central air conditioning offers a variety of climate control equipment that will fit both your summer and winter needs during a project. We have carefully selected the right equipment that fits the best for your style of structures. Our offerings are guaranteed to give you the safest and cleanest look in the industry. Amrta central air conditioning can provide both air conditioner unit and heat unit for comfort cooling, safety structures, climate controlled storage and / or VIP event venues. If you need a controlled environment inside a temporary structure, Amrta central air conditioning has the answer. Portable 4 Ton to 30 Ton Vertical Tent Packaged Unit ● Units that take up very little space ● Units that install within the tent structure to create a clean and nonintrusive look ● Units that supply both air conditioned and heat within the same units ● Units that require no duct work for supply or return air ● Units that are controlled by thermostats to be user friendly ● Units that also have capabilities for small electrical distribution Factory Air Conditioner Unit ● Amrta central air conditioning can also provide larger factory style units based on your application needs ● Ductable units where space is very limited ● Larger units that need higher air volume or static pressure. Amrta central air conditioning is a 'one-stop' company that can supply all your needs from the structure, climate control and the power to run it.

Which type of cooling equipment is correct for your application? Count on Amrta application specialists to understand your process and help you find the right chiller for your specific needs to help minimize investment and ongoing energy costs. There are several important factors to consider when selecting a brewery water chiller or a chiller for a winery or distillery including brew house capacity, quantity and BBL for the fermentation tanks, quantity and BBL for the tanks as well as the wort cooling. Amrta brewery chillers have a high fluid flow that promotes maximum heat transfer for better product cooling and can provide temperatures from 20°F - 30°F. Amrta diverse line of cooling equipment includes glycol portable and central chillers, evaporative cooling towers, adiabatic fluid coolers as well as a full line of custom tank systems. Typical applications include cooling for breweries, wineries, cider mills, and spirits. Regardless of the size, we can provide you with the right chiller for your application. Glycol Chiller Applications How Glycol Chillers are Being Used Breweries Cooling the Wort Controlling Fermentation Crash Cooling Vessels Prepackaging Product Storage Wineries Fermentation Process Cold Stabilization Room Cooling Cider Mills Fermentation Control Cold Chilling the Juice Cold Storage of the Final Product Distilleries Fermentation Process Circulation Between Distillation Tanks & Stills Heat Removal

While sizing a water chiller for your application, you need to entertain a few factors. First, let us understand the functioning of a chiller. A chiller is basically a compressor based cooling system which appears quite similar to an air conditioner except a different functioning. It is used for cooling as well as controlling the temperature of a liquid rather than air. The chiller will ensure to provide a stable flow, temperature and pressure once it has been set on a program as per the specific needs of a user. The Emerging Application Areas Chiller is also known as Chilled water cooling systems. It has become a preferred choice for various institutions where commercial conditioning repair is required. Schools and hospitals form good examples of the same. To understand chiller better, we can say that it is a compressor based cooling system which is similar to an air conditioner but it cools liquid and not air. Big commercial buildings which need a substantial amount of cooling use water chiller because of its cost effective feature. There is a decreased hazard now by not having refrigerant pipes surrounding the building. Harmful particles are tried keeping out of the system by using an internal strainer. Advantages of Installing a Chiller Air cooled chillers can be installed in open areas like parking space, roofs or even at the ground level areas. It will have all the benefits of a low installation cost as well as maintenance. They can also do this without using a plant room, condenser pumps or a cooling tower. The benefits are no heat buildup in a room and further it requires no need for ventilation. Noise level is largely decreased since it boasts of no fan operation feature. Functioning of a Chiller Both chillers as well as a cooling tower are used for the purpose of removing heat from a liquid, which acts as a coolant in huge devices like power stations. A cooling tower further throws away heat from the water which is now discharged using a condenser. This discharged water again goes for recycling back into the plant which is to be used for cooling the system again. Chillers absorb heat even from a coolant, which is totally contained in a cooling system. The chiller further transfers heat to the air which is around the chiller unit. Though chillers as well as cooling towers operate same, they may vary depending on their types and the components used. Water cooled chiller is a popular type used for commercial requirements. Other factors include the nature of the equipment which they are going to cool and power. Thus, we can say that a chiller is an efficient machine that discards heat from a liquid by way of a vapor compression. It can be understood as an absorption refrigeration cycle. This liquid can then further be circulated using a heat exchanger to cool equipment which may lead to another process stream like air or even process water. Refrigeration also creates waste heat which must be exhausted to ambient or recovered for heating purpose for great efficiency. The industrial chiller is known as a cooling system which is used for removing heat from one element that is water and then transfers it to another ambient that can be water or air.

If you want to have reliable temperature control over your fermentation and storage temperatures, we recommend looking into a complete glycol water chiller for your winery. A properly set - up / sized glycol system will allow you to independantly control your fermentation vessels, storage tanks and cellar - all at the same time with a single machine. How Does It Work? At the heart of a glycol system is the glycol chiller itself. A glycol water chiller is actually a refrigeration system that is used to cool a bath or tub of an antifreeze called "propylene glycol", or just "glycol" for short. This cooled liquid is pumped though a looped circuit of tubing connected to the input and output sections of the glycol chiller. This is your main cooling line. For every vessel you want cooled, just connect the heat-exchanger (ex: a jacket on a tank, a stainless steel plate exchanger, a stainless steel cooling snake, etc.) to the inlet and outlet legs of the main cooling line. Once connected, glycol will now circulate through the heat-exchanger and the vessel will be cooled. Control The Flow: Glycol is usually chilled below the freezing point of water. This makes it very effective for cooling, but if you would like to maintain a temperature higher than freezing for your wine, you will need to adjust the flow rate of the glycol through the heat exchanger. This can be done in one of two ways: Manually: by inserting a shut - off valve and opening or closing it as needed, you can regulate the temperature of your wine. However, you will have to consistantly monitor it to make it work. Automatically: using a temperature controlled solenoid valve. This is the recommended way to easily and effectively control your temperatures. You simply connect the temperature contolled solenoid valve to the tubing leading to the heat exchanger and then place the temperature probe / thermometer into wine (using a thermal well). Program the temperature that you would like the wine to be at and the solenoid valve automatically opens and closes to maintain your desired temperature. Can I just Use Water In My Glycol System? In short, No. Most wineries usually use glycol at around a 33% solution in water because of the following benefits it has over using pure water alone: Glycol is an antifreeze, so it can be cooled below freezing temperatures without icing-up the insides of the water chiller (which would damage the chiller and make the cooling actually less effective). Glycol acts as lubrication for the pump. Glycol holds temperature better than water in longer tubing runs. Some Units Heat! With certain Glycol Chillers the glycol systems might also incorporate a heater to heat the glycol instead of cooling. This can be exceptionally nice in cold weather areas or when you want a ML fermenation to complete quickly. Please feel free to contact us by e - mailing us at info@amrta.com.cn with any glycol system related questions. We will be more than happy to help you size and choose the glycol system that best suits your individual needs.

There are a variety of industrial and medical applications that require years of reliable refrigeration. The latest technology, which we specialize in at Amrta air conditionng, will ensure that your medical lab or industrial facility can achieve steady temperatures for every type of process. With our leased water chiller, you can maintain constancy while also being able to customize the temperature of each process through an easy to configure computerized dashboard. We thought it would be a good idea here to explain how a recirculating chiller works, especially to help a company in need of chiller leasing to keep their processes constant. We believe that our clients should be able to source chillers of the highest quality without paying too much for electricity and water. Exploring the Recirculating Water Chiller A recirculating chiller typically runs on a pump, such as a centrifugal pump. It works in a cooling loop, which begins with the compressor, continues with the condenser, moves to the expansion valve, and concludes with the evaporator. After the evaporation process is complete, the cooling loop begins again with the condenser. Each component in a recirculating chiller depends on the integrity of all parts within the unit. For example, if there is a blockage within the unit, then it will not function according to its design, and the temperatures that it provides for medical or industrial large processes will not be consistent. You want to lease a glycol water chiller unit with a recirculating pump containing free flowing liquids and gases that will be easy to service throughout its lifetime. Remember, any variation in the temperature provided by a medical chiller can potentially compromise the quality of what the process is producing (i.e. human tissues or pharmaceutical liquids to be used in human treatments), processing, or storing. In a medical lab, for example, the failure to store human materials or materials to be used in human patients at the correct temperature could be disastrous. How Does the Cooling Path Look in Your Application? When it comes to choosing medical water chillers, we encourage you to first consider the types of heat (albeit mechanical, chemical, radiation) within the system that could affect the temperature of what must be cooled. For example, you may have a liquid that needs to be maintained at a constant temperature a few degrees above freezing, but it becomes warmer due to heat buildup within its housing unit. We could help you choose the right equipment to create a closed loop system which provides a cooling liquid around the container. This keeps the liquid within the unit cool (at a preferred temperature) and ensures that excess heat is pumped away by the cooling unit and released into the air through evaporation. Other units may include a cooling coil that is present within the liquid that must be cooled, ensuring that the contents never exceed the desired temperature. Consideration of Waste Heat It`s important to keep in mind that most medical chillers are going to contain chemicals that are regulated by the Environmental Protection Agency. The refrigerant that is present within your chiller may be one containing a CFC, which must, of course, be disposed of in a manner that does not harm the environment. Another by product of any chilling process, whether you use a recirculating chiller or not, is waste heat. The heat that is released through the evaporation process must be pumped out of the building through a safe method. For example, you don`t want excess heat to cause problems with cooling or refrigeration of materials in other parts of the industrial facility or medical lab.

What is free cooling and how can it reduce air conditioning operational costs? Free cooling provides significant opportunities to generate energy savings. It can take effect when the difference between the outside supply and return temperatures is as little as 1°C. This means that, in a 24/7 data centre with a typical room temperature of 24°C, over 95% of the year can be spent with free-cooling active. Concurrent free cooling In addition to energy savings through reducing the need for mechanical (DX) cooling, concurrent free-cooling also maximises the part-load efficiencies of components such as EC fans, inverter-driven pumps and centrifugal compressors. The variable speed control on such components allows load to be very precisely matched to cooling duty, reducing energy consumption and unnecessary wear. EC fans for example are up to 70% more efficient than AC fans at part-load. The use of temperature sensors and sequencer controls allows for cooling to be staged, ensuring a smooth transition from mechanical cooling to air free cooling. On sites with an air cooled and free cooling chiller, the sequencer ensures that when the ambient is low, the free cooling chiller is the first to start up. In terms of the costs of ownership, energy represents by far the biggest item of expenditure, often outweighing the initial capital costs over the course of a unit`s lifetime; in the case of a traditional DX computer room air conditioning (CRAC) system, estimated energy costs over the course of five years can add up to 5 or 6 times the initial cost of the unit. Free cooling units can easily pay for themselves within the first 1 to 2 years and, by the end of five years, total costs of ownership can equate to around half those of DX systems. Free cooling opportunities can therefore make a significant saving on operational budgets, generating PUEs of 1.1 or below.

How To Choose An Industrial Water Chiller Choosing the right size recirculating chiller adds to the economies of its use. The optimum size needed is based on the amount of heat your application is generating, plus additional power to maintain temperature under varying loads. Normally the manufacturer of the equipment you are cooling will supply heat removal information, which will include BTU/hr or watts to be removed along with flow rate and desired and inlet and outlet temperatures for the equipment. If information isn’t available, here’s how to calculate the heat load of your system: BTU/hr = (T1-T2) x gpm x 60 min/hr x 8.33 lb/gal x Cp T1 = temperature of coolant leaving the equipment, deg F T2 = temperature of coolant entering the equipment, deg F gpm = gallons per minute of coolant flowing through the equipment Cp = specific heat of coolant; Water = 1.0 Measure temperature with the same thermometer if possible of with two thermometers of known accuracy. Measure gpm using a flowmeter of by collecting the coolant in a known volume for a given period of time. Additional Considerations If ambient temperature of the cooling location is above 68°F, add 1% to the calculated BTU/hr for each 0.9°F above 68°F. If operating at 50Hz, add 20% to the calculated BTU/hr. If line voltage is consistently below rated voltage, or if you work at high altitude, add 10% to the calculated wattage. Future growth cooling needs or variability of heat output of existing unit. Conversions Watts = BTU/hr / 3.413 Tons = (BTU’s / hr) / 12,000 How To Choose A Laboratory Water Chiller Choosing the right size recirculating chiller adds to the economies of its use. The optimum size needed is based on the amount of heat your application is generating, plus additional power to maintain temperature under varying loads. Normally the manufacturer of the device you are cooling will supply heat removal information. If information isn’t available, here’s how to calculate the heat load of your system: Watts = [DT° x (K)] / S Where : DT= The difference (D) between incoming and outgoing tap water temperature (T) of your instrument. Measure carefully using the same thermometer for both locations. You may measure in Celsius or Fahrenheit. S = The number of seconds to fill a one liter container. K = Conversion constant for density and specific heat of water. Measured in : Celsius: Watts = [DT°C (4,186)] / Seconds Fahrenheit: Watts = [DT°F (2,326)] / Seconds Additional Considerations : If ambient temperature of the cooling location is above 20°C, add 1% to the calculated wattage for each 0.5°C above 20°C. If operating at 50Hz, add 20% to the calculated wattage. If line voltage is consistently below rated voltage, or if you work at high altitude, add 10% to the calculated wattage. Future growth cooling needs or variability of heat output of existing unit. Conversions : BTU’s / hr = (watts) * 3.413 Tons = (BTU’s / hr) / 12,000 Calculating Process Heat Loads Below are some basic methods for calculating the heat load of various industrial processes. In order to use the heat load calculations some general definitions need to be addressed. The calculations will reference the following basic definitions and formulas: One Ton of Refrigeration = 12,000 Btu per Hour One Refrigeration Ton = 3,025 kg calories per hour Btu/hr for Water = GPM x 500 x Delta-T Btu/hr for other fluids = Lbs. Per Hr. x Specific Heat x Specific Gravity X Delta-T Btu/hr for Solids = Lbs. Per hour x Specific Heat x Delta-T Btu/hr = kW x 3,413 Btu/hr = HP x 2,544 PSIA = PSIG 14.7 Btu/hr = kW x 1000 / .293 kW = Btu/hr / 1000 x .293 Lbs/Hr = GPM x Density x 8.022 Lbs/Hr = GPM x 501.375 x Specific Gravity Specific Gravity = Density / 62.4 GPM of Water = Btu/hr / Specific Heat / Specific Gravity / Delta-T / 500 Heat Rejection for Common Industrial Machinery Air Compressors ………………………1,500 Btu/hr per HP Air Compressor Aftercooler………1,500 Btu/hr per HP Vacuum Pump Cooling………………1,500 Btu/hr per HP Hydraulic Cooling………………………2,544 Btu/hr per HP x .6 Hot Runner………………………………..3,420 Btu/hr pr kW If component heat loads cannot be learned from customer supplied data, multiply the total input Hp or kW times the appropriate conversion factor. This represents the maximum possible heat load.

No idea how to anti-freeze for laser system water chiller? Three tips to guard your chiller through winter. - Working 24 hours Run the chillers for 24 hours per day and make sure the water under recirculation status. - Empty the water Empty the water inside the laser, laser head and chiller after done with using. - Add antifreeze Add antifreeze into the water tank of glycol water chiller. Teyu recommends the antifreeze which is exclusive used for automobile. Note: all kinds of antifreeze contain certain corrosive property, not to be used for long period. Please use clean pipes with deionized water or distilled water after winter, and refill deionized water or distilled water as the cooling water. Warm Note: because antifreeze contains certain corrosive property, please dilute it strictly according to usage note before adding into cooling water. Antifreeze Tips Antifreeze usually uses alcohols and water as base with high boiling point, freezing point, specific heat and conductivity for anti-corrosion, anti-incrustant and rust protection.

REDUCED & IMPROVED PRODUCTIVITY Fewer interruptions & less waste EQUIPMENT PROTECTION The most compelling reason for a water chiller is the protection it provides to your valuable process equipment– such as spot welders, injection molding equipment, and various other industrial applications. A chiller provides solid protection of your investment, 24 hours a day, 7 days a week during the chiller`s lifecycle. OPTIMIZED PROCESS CONTROL & OPERATING LIMITS Modern industry`s increasing levels of sophistication and capital investment imply that highest precision with zero downtime are an absolute must for an economically viable process. REDUCED OPERATING & MAINTENANCE ISSUE A water tower may provide adequate cooling during fall & winter months, but fail during the hotter periods of the year. A glycol water chiller will immediately eliminate this problem. SAVE WATER & RELATED COSTS Water is continuously recirculated and reused, bypassing the need for expensive city water and sewage services. CLOSED CIRCUIT OPERATION Extremely precise water temperature control, with quick reaction to any sudden load changes. DESIGNED FOR INDUSTRIAL PROCESSES Flexible and fully customized solutions and upgrades available. ELIMINATE WATER MONITORING AND ASSOCIATED COSTS With increasingly stringent local and federal water regulations, chillers recirculate water, and therefore eliminate the need for discharge water monitoring and annual permits.

What are they? Split systems have an indoor unit which provides heating and cooling and an outdoor unit which houses the heat rejection coil and compressors. Refrigerant is circulated between the indoor and outdoor units. These systems are most common in small buildings. Rooftop Package unit has heating, compressor, heat rejection and compressors all in one unit, and are typically mounted on the roof and connected to the occupied spaces via a duct through which the heated or cooled air is provided. Water cooled package units have heating, cooling and compressor mounted in a single unit mounted in the ceiling space of the occupied area, and reject heat to a condenser water loop which is cooled by a cooling tower and may also be heated by a boiler. All three of the above types may be [reverse cycle", whereby the refrigerant system can provide heating or cooling. Alternatively, the refrigerant system may provide cooling only while heating is provided by electric duct heaters or hot water coils. Advantages / Disadvantages - Low install cost. These system types are typically the cheapest to install - Moderate energy efficiency. These units tend to be designed for price rather than efficiency, although some quite efficient units exist. Water cooled package air conditioner have quite limited options for efficiency. - Simple maintenance requirements. These are stand-alone systems designed for operation in a low maintenance environment - Poor heating efficiency if water cooled or direct electric heating units are used. - Limited lifespan. Split systems and packaged units typically have a life span of 10-15 years only, and less than this if poorly maintained. - Refrigerant costs. Some of the common refrigerants used in these systems , most notably R22, are being phased out through legislation, because of their negative impact on the environment. This will mean that the costs of this refrigerant will rise markedly and ultimately many R22 split and packaged systems may need to be replaced before the end of their operational life. - Refrigerant leakage is common and badly affects both the capacity of heating and cooling provided and the efficiency of the unit. However, it is often not detected in standard maintenance. - Very sensitive to blocked air filters. Blocked filters lead to a reduction in airflow which will lead to excessively low and excessively high supply air temperatures which drastically reduce effectiveness and comfort. Energy efficiency Split and package systems are available in a large range of efficiencies. Smaller systems are rated using the appliance rating system and should always be selected for the highest star rating available in the right size. For most air cooled systems it is possible to source a unit with an inverter controlled compressor which reduces energy use by upwards of 20%, and should always be selected where available. Running costs The age and condition of split and packaged air conditioner will significantly affect running costs. Older systems tend to have higher rates of temperature controller failure, refrigerant loss, coil damage as well as less efficient underlying hardware, all of which can increase costs. As with all systems, efficiency will be improved by good management, especially in relation to the calibration of temperature sensors and the maintenance of filters, coils and refrigerant charge. Retrofit / improvement opportunities The major areas for improvement for split and package units systems re: - Ensure filters and coils are not blocked - Ensure control set-points are consistent and appropriate. - Ensure that refrigerant charge is correct - Ensure that there is good airflow around the outdoor units so htat heat can be rejected and does not [pool" around the outdoor unit. - Replace older units with new more efficient units preferably with inverter driven compressors. - For water cooled package unit systems, install valves to prevent condenser water flow through the unit when the compressor is not operating, and improve condenser water pump control. - Install free cooling so that outside air can be used for free cooling when conditions are appropriate. Applicable buildings Air cooled split systems and packaged units are common in smaller buildings, for which they are a reasonable solution. Water cooled packaged units are used in a wider range of building types, including retail and office developments of significant size, owing to the convenience of condenser water distribution as a means of moving heat. Floor plate implications Split and package units systems are ceiling and / or roof mounted and so do not take up floor space. Temperature control / Occupant comfort Split systems and ceiling mounted package units systems are generally considered a lower grade solution for office air conditioning due to fan noise. Roof mounted package unit systems avoid this problem. All of these system types have limited control of supply air temperature which can produce occupant comfort issues. Maintenance implications These system types are reasonably low maintenance but nonetheless require regular maintenance to maintain efficient and effective operation. Filters, coils and refrigerant charge must be well maintained. Identification Split systems have an outdoor compressor unit which is typically mounted at ground level or on a roof. Indoors, these systems may use wall mounted terminals or have a ducted indoor unit within the ceiling space. Air cooled package units are generally roof mounted, and are recognisable by the presence of ductwork leading to and from the unit and the operation of compressors within the unit. Water cooled package units are ceiling mounted and have a cooling tower on the building roof (typically). Maintenance or operational staff will be able to advise whether a building uses ducted split unit and package unit.