How Does a Cooled Water Chiller Work?

How Does a Cooled Water Chiller Work?

Step 1: Refrigerant Circulation

In a cooled water chiller system, the process starts with the circulation of a refrigerant. The refrigerant absorbs heat from the water that needs to be cooled.

Step 2: Compressor Process

The next step involves the compressor compressing the refrigerant gas. This process increases the temperature and pressure of the refrigerant gas.

Step 3: Heat Exchange

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

Step 4: Expansion Valve

The liquid refrigerant then flows through an expansion valve, which reduces its pressure and temperature. This helps in preparing the refrigerant for the evaporator.

Step 5: Evaporation Process

In the evaporator, the low-pressure liquid refrigerant absorbs heat from the water, causing it to evaporate into a gas again. This absorption of heat from the water results in the chilled water temperature dropping.

Step 6: Water Circulation

The chilled water is then circulated through the desired system or process that requires cooling. The heat absorbed by the water is released into the environment or released through a cooling tower.

Step 7: Refrigerant Re-Circulation

After releasing heat to the water, the refrigerant flows back to the compressor to restart the process. This cycle continues as long as cooling is required.

Conclusion

In essence, a water chiller works by using a refrigerant to absorb heat from water, compressing and then condensing the refrigerant, and circulating chilled water through a system. The continuous cycle of heat absorption and release allows the water chiller to effectively cool down water for various industrial and commercial applications.

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