How does a Chiller Work?

A chiller is a cooling system that cools materials down by removing heat from a liquid via a vapor-compression or absorption refrigeration cycle. The liquid gets circulated through a heat exchanger to cool equipment. In a chiller system, there is always a liquid working as a refrigerant going through the heat exchanger in order to transfer the heat energy. When the heat gets absorbed by the liquid, materials get chilled.

What are Types of Chillers?

There are three major types of chillers in use based on the condenser type, which are air-cooled chillers, water-cooled chillers and evaporative condensed chillers. As their name suggests, the air-cooled chillers use air to remove heat in the condenser by using fans to force air across the exposed tubes of the condenser, while the water-cooled chillers use water to remove heat by using pumps to send water through a sealed condenser. The latter is generally more energy-efficient than air-cooled chillers. The evaporative condensed chillers can condense a substance from its gas state to its liquid state by cooling it. Then the heat is released by the substance and transferred to the surrounding environment. It is usually considered as an alternative device to air or water cooled chillers.

How does a Chiller Work?

As there are various kinds of chillers, they have the same working principle. A chiller system is about transferring and taking in the heating energy. Hence, the transformation of heating energy is the basic working principle of a chiller system. In the working process of a chiller system, the heating energy get transferred from a kind of material or any other thing to a middle solvent or substance. In the process of transferring heating energy, the pointed materials’ heating energy get absorbed and turned into a cold situation, which is the destination of a chiller system.

Chiller
Chiller

1. Working Principle of HVAC Chillers

The basic working principle of a HVAC chiller is to cool building or equipment down by refrigeration effect such as its using in a laboratory or industrial setting. Like other kinds of chillers, HVAC chiller also has four parts: the compressor, the evaporator, the condenser and the thermal expansion valve or refrigerant metering device.

2. Working Principle of Air Cooled Chillers

Air cooled chillers are widely used in various industries. Its nature principle is a multi-functional machine that removes liquid vapor through compression or heat absorption refrigeration cycles. The air cooled chiller consists of four main components of the vapor compression refrigeration cycle compressor, evaporator, condenser, and part of the metering device in order to achieve different refrigerants. The air cooled chiller unit actively absorbs the amount of heating energy in the process water. Then, they transfer this heating energy to the air around the cooling unit.

Which Gas is Filled in Air Conditioner (AC)?

There are several types of Freon, such as R22, R32, R134a and so on. Freon is generally a gas at room temperature and pressure, with a slight aroma. It is a transparent liquid under low pressure. Because Freon has strong chemical stability, thermal stability, small surface tension, easy vapor-liquid two-phase change, and is non-toxic, lipophilic, and inexpensive, it is widely used in refrigeration, foaming, solvents, sprays, electronics Components cleaning and other industries.

How Long does AC Gas Last?

The service life of air conditioner is generally 8~10 years. From the perspective of air conditioner materials, its service life is about 8 to 10 years. For safety reasons, it is not recommended to continue to use it. From the point of view of the efficiency of air conditioners, as components age and energy efficiency decreases, it will definitely consume more electricity. For the purpose of effective utilization of energy efficiency, it is not recommended to continue to use it.

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