During the charging process, where is the refrigerant stored in liquid form?

The correct answer is the receiver. During the charging process of a refrigeration system, the refrigerant is stored in liquid form primarily in the receiver. The receiver serves as a storage tank that holds the liquid refrigerant after it has been condensed in the condenser and before it is sent to the expansion device. This ensures that there is a sufficient quantity of liquid refrigerant ready to be delivered to the evaporator for the cooling cycle.

In refrigeration systems, the liquid line transports the refrigerant from the receiver to the expansion valve; however, it does not store refrigerant but rather carries it through the system. The accumulator, on the other hand, is utilized in certain systems to collect excess liquid refrigerant and ensure that only vapor enters the compressor. Meanwhile, the evaporator is where the refrigerant evaporates and absorbs heat, but it does not store the refrigerant in liquid form. Thus, the receiver is the most accurate location for liquid refrigerant storage during the charging process.