What are Applications of Chillers?



A chiller can be regarded 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 Applications of Chillers?

As a cooling machine, a chiller can remove heat from an element, such as water, glycol and air, and deposit it into ambient air or water. Because of such functions, a chiller has a variety of applications today, as follows.

1. Industrial Application

As chillers are extremely versatile, many industries require chillers to lower the high temperature in certain industrial processes. For example, chillers are used to cool hot plastic in the plastic manufacturing, and maintain a certain temperature range needed in beverage industry. What’s more, they are often used in the vacuum system, paper and cement processing, compressed air and gas cooling, etc. Also, chillers can lower the temperature of various equipments in order to keep industrial processes run smoothly.

2. Chemical Application

Chillers are also widely used in chemical laboratories, cooling chemical substances and setting different temperatures so that different chemical substances can be turned into liquid from gas at their liquefaction points.

3. Medical Application

Chillers are available in the medical application as well. For example, chillers can cool the medical equipment to keep them run smoothly. And they are capable of lowering patients’ temperature, and keeping medical samples at a proper temperature as well.

Certainly, it can be used in other fields, such as education and laboratory. A chiller really plays an important role in various experiments and productions.


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 do Chillers 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.

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.

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