Working principle of chiller

- 2023-05-10-

Chillers are commonly known as freezers, refrigerators, ice water machines, chillers, cooling machines, etc., because they are widely used in various industries, so there are countless names. The principle of its nature is a versatile machine that removes liquid vapor through compression or heat absorption refrigeration cycles. Vapor-compression chillers include four main components in the form of vapor-compression refrigeration cycle compressors, evaporators, condensers, and part metering devices to achieve different refrigerants. Absorption chillers use water as a refrigerant, and rely on a strong affinity between water and lithium bromide solution to achieve a cooling effect.

Chillers are commonly used in air conditioning units and industrial cooling. In air conditioning systems, chilled water is usually distributed to heat exchangers or coils in air handling units or other types of terminal equipment for cooling in their respective spaces, and then the chilled water is redistributed back to the cooling to be cooled. In industrial applications, chilled water or other liquids are cooled by pumping through process or laboratory equipment. Industrial chillers are used in various industries to control the cooling of products, mechanisms and factory machinery.
Air-cooled chiller

Chillers can generally be divided into water-cooled and air-cooled according to the cooling form. Technically, water-cooled is 300 to 500 kcal/h higher in energy efficiency than air-cooled; in terms of price, water-cooled is much lower than air-cooled; In terms of installation, water cooling needs to be included in the cooling tower before it can be used, and air cooling can be moved without other assistance, but the air-cooled chiller only relies on the fan to dissipate heat, and has certain requirements for the environment: such as ventilation, humidity, and the temperature cannot be higher than 40 °C.