Which component increases pressure and temperature to improve cooling?

Which component increases pressure and temperature to improve cooling?

• A. Pump
• B. Compressor
• C. Fan
• D. Turbine

Answer: (B)

Raising the refrigerant’s pressure and temperature is achieved through compression, which is essential for moving heat in a cooling cycle. The compressor does work on the refrigerant, producing high-pressure, high-temperature gas that then releases heat in the condenser to outside air and becomes a high-pressure liquid before expanding to absorb heat again in the evaporator. A pump would only increase pressure in liquids and doesn’t provide the gas-phase compression the cycle needs; a fan helps transfer heat by moving air but doesn’t change the refrigerant’s pressure; a turbine expands gas, lowering its pressure and temperature. So, the component that increases pressure and temperature to drive cooling is the compressor.

Raising the refrigerant’s pressure and temperature is achieved through compression, which is essential for moving heat in a cooling cycle. The compressor does work on the refrigerant, producing high-pressure, high-temperature gas that then releases heat in the condenser to outside air and becomes a high-pressure liquid before expanding to absorb heat again in the evaporator. A pump would only increase pressure in liquids and doesn’t provide the gas-phase compression the cycle needs; a fan helps transfer heat by moving air but doesn’t change the refrigerant’s pressure; a turbine expands gas, lowering its pressure and temperature. So, the component that increases pressure and temperature to drive cooling is the compressor.