This phase change is the mechanism that provides the cooling effect. This cycle consists of four primary components: the compressor, the condenser, the expansion valve, and the evaporator.
Understanding the Heat Rejection Process in Air Cooled Chillers
As the hot refrigerant flows through these tubes, the fins dissipate the heat into the moving air stream, causing the refrigerant to condense from a high-pressure vapor back into a high-pressure liquid. This chilled fluid is then pumped to remote locations, such as manufacturing equipment, air handling units, or laboratory instruments, to maintain precise temperature control.
These include refrigerant sight glasses, oil separators, receivers, and sophisticated control systems that monitor temperature, pressure, and flow rates. The separation between the refrigerant circuit and the process fluid ensures safety and allows for greater flexibility in system design.
Understanding the Heat Rejection Process in Air Cooled Chillers
Role of the Process Fluid In most industrial and commercial settings, the air cooled chiller does not directly cool the air or product. Instead, it cools a secondary process fluid, typically a mixture of water and glycol, which is circulated through the evaporator.
More About How does an air cooled chiller work
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