Final Answer:
The component that is NOT part of the low side of the system is b) Receiver.
Thus option b is correct.
Step-by-step explanation:
The low side of a refrigeration system encompasses components where the refrigerant is in a low-pressure state. The evaporator, suction line, and accumulator are all part of this low-pressure side. However, the receiver is situated on the high side of the system. Its primary function is to store excess liquid refrigerant to prevent it from entering the compressor, ensuring that only vapor reaches the compressor, thereby protecting it from potential damage caused by liquid refrigerant. It acts as a temporary storage point before the refrigerant moves into the expansion valve.
In refrigeration systems, the low side generally involves the components where the refrigerant undergoes phase change (from liquid to vapor or vice versa) due to pressure fluctuations. The evaporator absorbs heat from the surroundings, causing the refrigerant to evaporate into a low-pressure vapor. The suction line transports this low-pressure vapor to the compressor for compression. The accumulator, also part of the low side, ensures that any liquid refrigerant entering the compressor is captured and redirects it back to the evaporator, preventing potential compressor damage.
The receiver, however, operates on the high side of the system. Its purpose is to store excess liquid refrigerant, ensuring that only vapor enters the expansion valve. This component helps maintain the efficiency and proper functioning of the system, preventing liquid refrigerant from reaching parts of the system where it could cause damage or inefficiencies.
Therefore option b is correct.