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Air-cooled chillers are essential components in modern cooling systems, widely used in commercial and industrial applications. These systems are designed to remove heat from a liquid via a vapor-compression or absorption refrigeration cycle. The primary function of air-cooled chillers is to provide chilled water for air conditioning systems, process cooling, and other applications requiring temperature control.

The operation of air-cooled chillers involves several key components, including a compressor, condenser, expansion valve, and evaporator. The process begins when the compressor circulates refrigerant through the system, compressing it into a high-pressure gas. This gas then moves to the condenser, where it releases heat to the surrounding air, facilitated by fans that blow air over the condenser coils. As the refrigerant cools, it condenses into a liquid and flows through the expansion valve, where it experiences a drop in pressure. This low-pressure liquid then enters the evaporator, absorbing heat from the water or air being cooled, and evaporates back into a gas, completing the cycle.

Air-cooled chillers are favored for their efficiency, ease of installation, and lower maintenance requirements compared to water-cooled systems. They are particularly suitable for locations where water supply is limited or where environmental regulations restrict water usage. Overall, air-cooled chillers play a crucial role in maintaining comfortable and controlled environments in various settings.