Which component in refrigeration changes a low pressure vapor to a high pressure vapor?

Which component in refrigeration changes a low pressure vapor to a high pressure vapor?

• A. Evaporator
• B. Compressor
• C. Receiver
• D. Expansion valve

Answer: (B)

The compressor is the component in refrigeration systems that changes a low-pressure vapor to a high-pressure vapor. In the refrigeration cycle, the compressor plays a critical role by taking in the low-pressure refrigerant vapor from the evaporator and compressing it into a high-pressure vapor. This process significantly increases both the pressure and temperature of the refrigerant, allowing it to circulate through the system effectively. The vapors produced in the evaporator are at a low pressure because they have absorbed heat from the area being cooled. Once the vapor enters the compressor, it is subjected to mechanical work, which increases its pressure and temperature. The high-pressure vapor is then sent to the condenser, where it releases heat and changes back into a liquid state. This phase is essential for the refrigeration cycle to function properly, leading to the cooling effect within the evaporator. Understanding the compressor's role is crucial, as it essentially drives the refrigeration process by ensuring that the refrigerant continuously cycles through the system efficiently.

The compressor is the component in refrigeration systems that changes a low-pressure vapor to a high-pressure vapor. In the refrigeration cycle, the compressor plays a critical role by taking in the low-pressure refrigerant vapor from the evaporator and compressing it into a high-pressure vapor. This process significantly increases both the pressure and temperature of the refrigerant, allowing it to circulate through the system effectively.

The vapors produced in the evaporator are at a low pressure because they have absorbed heat from the area being cooled. Once the vapor enters the compressor, it is subjected to mechanical work, which increases its pressure and temperature. The high-pressure vapor is then sent to the condenser, where it releases heat and changes back into a liquid state. This phase is essential for the refrigeration cycle to function properly, leading to the cooling effect within the evaporator.

Understanding the compressor's role is crucial, as it essentially drives the refrigeration process by ensuring that the refrigerant continuously cycles through the system efficiently.