|MadSci Network: Engineering|
Dear Kunall You asked how does and Air Conditioning Unit with Cooling Tower and Condenser Work? Let me walk you through the process and the components. In the compressor, refrigerant gas is compressed. The hot refrigerant gas flows to the condenser pipes or coils surrounded by cold water where it is cooled while still under high pressure. The cold water absorbs the heat from the gas condensing it into a liquid. The liquid refrigerant then flows into a holding tank called a receiver. From there it flows through a temperature actuated valve called an expansion valve into the cooling coils located in the space to be cooled. The liquified refrigerant gas absorbs heat, changes back to a gas and flows back to the compressor where it is recompressed and the cycle begins again. Water serves to absorb and dissipate the heat. The water that flowed through the condenser is sent to a cooling tower where itsí temperature is lowered at least 10 degrees or more by evaporative cooling. In the cooling tower, the water is dropped over a series of plates called baffles to break it up into tiny drops. A fan usually located in the top of the tower draws cold air up through the falling water causing some of it to evaporate, cooling down the remainder of the water which returns to the condenser to absorb more heat. In large buildings, water serves as the heat removal medium for both the refrigeration cycle and the cooling process instead of circulating the refrigerant through coils in the space to be cooled. The refrigerant never leaves the engine room. Water is passed over the evaporator coils and is cooled to about 45 - 50 degrees F and then passes through pipes with many small thin fins located in the space to be cooled. I hope this explanation answers your question.
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