What are the Two Basic Types of Chillers?

As a cooling system, a chiller can cool 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 the Two Basic Types of Chillers?

Generally, there are two basic types of chillers in terms of the cooling principle, which are water cooled chillers and air cooled chillers. Even though these two types of chillers have different cooling principles, they have the similar components, which are the evaporator, the compressor, the condenser and the expansion valve. Different types of chillers are used in different fields or different applications, so choose the proper chillers correctly when use them.

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.


Which Type of chiller is Best?

It is generally recognized that water-cooled chillers are better than air-cooled chillers, which are mainly shown in the following aspects. Firstly, the water-cooled chillers are more high efficient than air-cooled chillers. Secondly, the water-cooled chillers are applicable for small-scale cooling as well as commercial-scale cooling. Last but not least, the water-cooled chillers are much quieter during the operation compared to air-cooled chillers.

What are Chiller Components?

A complete chiller is basically composed of the following components: a condenser, a compressor, an evaporator, an expansion valve, a power unit, water boxes and a control unit. The condenser can remove heat from the refrigerant, including air and water cooled condensers. The compressor is the most important component in a chiller system, which can ensure the movement of the refrigerant throughout the system. The evaporator can collect heat from the structure and send it to the cooling tower. The expansion valve can expand the refrigerant to increase its volume, thus allowing the refrigerant to absorb heat in the evaporator. The power unit controls the electricity supply to the chiller. The water boxes usually directs the flow and separates the entrance from the exit. The control unit can observe and manage the performance of a chiller. The above components all play an important role in a good operation of a chiller.

What are the Different Types of Refrigeration Compressors?

Compressors can be divided into rotary compressors, axial compressors, jet compressors and screw compressors and other types, of which the most widely used is reciprocating (piston) compressors according to the structure of multiple compressors.


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