What is the basic working principle of chiller?

Chiller Working Principle

Step 1: Refrigerant Circulation

The basic working principle of a chiller involves the circulation of refrigerant through a closed-loop system. The refrigerant absorbs heat from the process water or air and carries it to the chiller unit.

Step 2: Heat Absorption

Once the refrigerant enters the evaporator, it absorbs the heat from the water or air that needs to be cooled. This process causes the refrigerant to evaporate and turn into a low-pressure gas.

Step 3: Compression

The low-pressure gas is then compressed by the chiller's compressor, which increases its temperature and pressure. This step is essential for maintaining the flow of refrigerant and ensuring that the cooling process remains efficient.

Step 4: Heat Rejection

The high-pressure, high-temperature gas then moves through the condenser, where it releases heat to the cooling water or air. This causes the gas to condense back into a liquid state.

Step 5: Expansion Valve

The liquid refrigerant then passes through an expansion valve, which reduces its pressure and temperature. This allows the refrigerant to absorb more heat in the evaporator and restart the cooling cycle.

Step 6: Repeat Process

This cycle continues as long as the chiller is operational, with the refrigerant continuously absorbing and releasing heat to maintain the desired temperature of the water or air being cooled.By following these steps, a chiller can effectively cool water or air for various industrial, commercial, and residential applications. The precise control of temperature and efficient heat transfer make chillers an essential component in HVAC systems and industrial processes.

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