What is the role of the discharge valve in a refrigeration cycle?

The discharge valve plays a crucial role in the refrigeration cycle by allowing refrigerant to exit the compressor after it has been pressurized and heated. When the refrigeration cycle is in operation, the compressor's primary function is to move refrigerant from the evaporator—where it absorbs heat and turns from liquid to vapor—into the condenser system as a high-pressure vapor.

By efficiently sealing and then opening, the discharge valve ensures that the pressurized refrigerant can flow smoothly into the condenser, where it will release the heat it absorbed and condense back into a liquid. This function is vital for maintaining the continuous flow of refrigerant within the refrigeration system, thereby enabling it to operate effectively and efficiently. Understanding this role helps illustrate the importance of proper compressor function and the overall operation of the refrigeration cycle.