Which two components alter the refrigerant pressure in the cycle?

Which two components alter the refrigerant pressure in the cycle?

• A. Compressor and evaporator
• B. Condenser and evaporator
• C. Compressor and metering device
• D. Evaporator and metering device

Answer: (C)

In a vapor-compression refrigeration cycle, pressure is mainly controlled by two components. The compressor takes low-pressure refrigerant from the evaporator and compresses it to a high pressure so it can release heat in the condenser. After cooling, the refrigerant moves through a metering device (expansion valve or capillary tube), where it undergoes a rapid pressure drop before entering the evaporator. The condenser and evaporator are heat exchangers that operate at the high and low pressures set by the other two components, but they don’t create those pressure changes themselves. So the two parts that actualy alter the refrigerant pressure are the compressor and the metering device.

In a vapor-compression refrigeration cycle, pressure is mainly controlled by two components. The compressor takes low-pressure refrigerant from the evaporator and compresses it to a high pressure so it can release heat in the condenser. After cooling, the refrigerant moves through a metering device (expansion valve or capillary tube), where it undergoes a rapid pressure drop before entering the evaporator. The condenser and evaporator are heat exchangers that operate at the high and low pressures set by the other two components, but they don’t create those pressure changes themselves. So the two parts that actualy alter the refrigerant pressure are the compressor and the metering device.