Refrigeration Basics

What is the purpose of the vapor compression cycle in a refrigeration system?

• Transfer heat from low to high temperature regions

• Increase system efficiency

• Cooling the compressor

• Generate electricity

Explain the four main components of a vapor compression cycle.

• absorber

• heater

• compressor, condenser, expansion valve, evaporator

• radiator

What is the role of the compressor in the vapor compression cycle?

• Increases the pressure and temperature of the refrigerant vapor.

• Transfers heat from the refrigerant vapor to the surroundings.

• Decreases the pressure and temperature of the refrigerant vapor.

• Stores the refrigerant vapor until needed in the cycle.

Describe the process of compression in the vapor compression cycle.

• Compression in the vapor compression cycle involves reducing the volume of the refrigerant vapor, which increases its pressure and temperature.

• Compression in the vapor compression cycle involves increasing the volume of the refrigerant vapor.

• Compression in the vapor compression cycle decreases the pressure and temperature of the refrigerant vapor.

• Compression in the vapor compression cycle has no impact on the refrigerant vapor.

What is the function of the condenser in a refrigeration system?

• The condenser cools down the refrigerant before it enters the compressor.

• The function of the condenser in a refrigeration system is to release heat absorbed by the refrigerant.

• The condenser removes moisture from the refrigerant to prevent corrosion.

• The condenser increases the pressure of the refrigerant to improve efficiency.

How does the condenser remove heat from the refrigerant in the vapor compression cycle?

• By absorbing heat from the refrigerant and converting it into a high-pressure vapor

• By transferring heat to the surrounding air or water through coils or tubes, causing the refrigerant to condense from a high-pressure vapor to a high-pressure liquid.

• By releasing heat directly into the refrigerant, causing it to condense

• By using a magnetic field to extract heat from the refrigerant

What happens to the refrigerant in the expansion valve of a refrigeration system?

• It contracts and heats up

• It remains the same temperature

• It turns into a solid

• It expands and cools down

Explain the process of evaporation in the vapor compression cycle.

• Evaporation is the process of refrigerant releasing heat

• The process of evaporation in the vapor compression cycle involves the refrigerant absorbing heat from the surroundings, causing it to evaporate and change from a liquid to a vapor state. This occurs in the evaporator coil.

• Evaporation happens at the end of the compression cycle

• Evaporation occurs in the condenser coil

What is the significance of the evaporator in a refrigeration system?

• The evaporator has no role in the refrigeration system

• The evaporator releases heat into the surroundings

• The evaporator absorbs heat from the surroundings and cools them by evaporating the refrigerant.

• The evaporator compresses the refrigerant

How does the evaporator absorb heat from the surroundings in the vapor compression cycle?

• By condensing the refrigerant flowing through it

• By expanding the refrigerant flowing through it

• By compressing the refrigerant flowing through it

• By evaporating the refrigerant flowing through it