what is chiller system ?
DATE:2022-04-09
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What is a chiller?
A chiller (cooling water circulation device) is a general term for a device that controls the temperature by circulating a liquid such as water or heat medium as a cooling liquid whose temperature was adjusted by the refrigerant cycle. In addition to maintaining the temperature of various industrial devices and laboratory instruments, equipment and apparatuses at a constant level, it is also used for air conditioning in buildings and factories. It is referred to as a “chiller” because it is often used for cooling.
A chiller can supply chilled water continuously while circulating water in a cooling device. It is used a lot as a suitable device to cool heat generating parts and air conditioning equipment such as laser processing devices and high frequency heating devices at a constant temperature, solves various cooling problems and can reduce running costs while improving energy efficiency.
Air cooled chiller
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This is a type of system that sends wind to the heat exchanger and cools the refrigerant with air. There is a built-in fan motor inside the chiller, and it is easy to install, but because exhaust heat is generated in the room, exhaust equipment may be required in tight spaces. The gas compressed with the freezer (compressor) is cooled by a condenser (radiator) and liquefied. It is comprised of a refrigerant gas cycle and a circulating water cycle, and refrigerant gas is used as a heat medium to cool the circulating water.By passing liquefied gas through the expansion valve, the pressure is reduced, and it becomes a cooling gas, and a water cooler (heat exchanger) exchanges heat with the circulating water to cool the circulating water. Because there is no freezing or clogging, aquarium cleaning maintenance is easy. Also, in the case of the air-cooled chiller, the heat of vaporization due to the evaporation of rainwater lowers the temperature of the radiator when rainwater comes into contact with the cooling tower when it rains, and because the temperature drops due to the evaporation of rainwater around the air-cooled chiller, the cooling efficiency can be maintained regardless of the rise in humidity, such that the cooling efficiency improves even if the humidity is high.
Water cooled chiller
This is a type of system that uses a cooling tower to cool water. Cooling water for the refrigerator is required, but it offers advantages such as excellent cooling efficiency and does not generate exhaust heat in the room.A water-cooled chiller that uses water, which is active in the field of large-scale air conditioning, as a refrigerant, is referred to as a natural chiller (absorption chiller) and is adopted as a heat source refrigerator for central air conditioning of air conditioning equipment for medium and large-scale buildings. The system configuration is comprised of an evaporator, absorber, regenerator and condenser, and produces chilled water (hot water) with pressure control by circulating the refrigerant sealed in the equipment (cooling water circulation device).It is a cooling cycle, but by changing the pressure of the refrigerant in the equipment, chilled water (hot water) is produced by changing its composition to gas and liquid (latent heat transfer) inside an airplane. It can be stably operated throughout the year, and a compact design is possible so that it can be installed in small spaces.
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A chiller (cooling water circulation device) is a general term for a device that controls the temperature by circulating a liquid such as water or heat medium as a cooling liquid whose temperature was adjusted by the refrigerant cycle. In addition to maintaining the temperature of various industrial devices and laboratory instruments, equipment and apparatuses at a constant level, it is also used for air conditioning in buildings and factories. It is referred to as a “chiller” because it is often used for cooling.
A chiller can supply chilled water continuously while circulating water in a cooling device. It is used a lot as a suitable device to cool heat generating parts and air conditioning equipment such as laser processing devices and high frequency heating devices at a constant temperature, solves various cooling problems and can reduce running costs while improving energy efficiency.
Air cooled chiller
This is a type of system that sends wind to the heat exchanger and cools the refrigerant with air. There is a built-in fan motor inside the chiller, and it is easy to install, but because exhaust heat is generated in the room, exhaust equipment may be required in tight spaces. The gas compressed with the freezer (compressor) is cooled by a condenser (radiator) and liquefied. It is comprised of a refrigerant gas cycle and a circulating water cycle, and refrigerant gas is used as a heat medium to cool the circulating water.By passing liquefied gas through the expansion valve, the pressure is reduced, and it becomes a cooling gas, and a water cooler (heat exchanger) exchanges heat with the circulating water to cool the circulating water. Because there is no freezing or clogging, aquarium cleaning maintenance is easy. Also, in the case of the air-cooled chiller, the heat of vaporization due to the evaporation of rainwater lowers the temperature of the radiator when rainwater comes into contact with the cooling tower when it rains, and because the temperature drops due to the evaporation of rainwater around the air-cooled chiller, the cooling efficiency can be maintained regardless of the rise in humidity, such that the cooling efficiency improves even if the humidity is high.
Water cooled chiller
This is a type of system that uses a cooling tower to cool water. Cooling water for the refrigerator is required, but it offers advantages such as excellent cooling efficiency and does not generate exhaust heat in the room.A water-cooled chiller that uses water, which is active in the field of large-scale air conditioning, as a refrigerant, is referred to as a natural chiller (absorption chiller) and is adopted as a heat source refrigerator for central air conditioning of air conditioning equipment for medium and large-scale buildings. The system configuration is comprised of an evaporator, absorber, regenerator and condenser, and produces chilled water (hot water) with pressure control by circulating the refrigerant sealed in the equipment (cooling water circulation device).It is a cooling cycle, but by changing the pressure of the refrigerant in the equipment, chilled water (hot water) is produced by changing its composition to gas and liquid (latent heat transfer) inside an airplane. It can be stably operated throughout the year, and a compact design is possible so that it can be installed in small spaces.