ACR101 Understanding Refrigeration Fundamentals W6D1

What are the main components of the refrigeration cycle?

• Evaporator, Compressor, Radiator, Duct

• Compressor, Heat Pump, Condenser, Filter

• Compressor, Condenser, Expansion Valve, Evaporator

• Refrigerant, Heat Exchanger, Thermostat, Fan

Explain the process of heat absorption in refrigeration.

• Heat absorption in refrigeration occurs when the refrigerant evaporates in the evaporator coil, absorbing heat from the surroundings.

• Heat absorption is the result of the refrigerant being heated in the expansion valve.

• Heat absorption occurs when the refrigerant condenses in the condenser coil.

• Heat absorption happens when the compressor compresses the refrigerant.

What is the role of the compressor in the refrigeration cycle?

• The compressor absorbs heat from the environment.

• The compressor cools the refrigerant gas.

• The compressor increases the pressure and temperature of the refrigerant gas.

• The compressor condenses the refrigerant into a liquid.

Describe the function of the evaporator in refrigeration systems.

• The evaporator absorbs heat and cools the surrounding area by allowing the refrigerant to evaporate.

• The evaporator releases heat to the environment.

• The evaporator compresses the refrigerant to increase its temperature.

• The evaporator circulates air to maintain humidity levels.

What is the purpose of the condenser in the refrigeration cycle?

• To remove heat from the refrigerant and condense it from gas to liquid.

• To filter impurities from the refrigerant.

• To increase the temperature of the refrigerant.

• To circulate the refrigerant throughout the system.

List three common applications of refrigeration in daily life.

• 1. Food preservation 2. Air conditioning 3. Medical storage of vaccines

• Heating food

• Water purification

• Industrial cooling systems

How does refrigeration contribute to food preservation?

• Refrigeration increases the temperature of food, promoting microbial growth.

• Refrigeration contributes to food preservation by slowing down the growth of spoilage-causing microorganisms and maintaining food quality.

• Refrigeration is primarily used to enhance the flavor of food.

• Refrigeration has no effect on food quality or safety.

What are some industrial applications of refrigeration?

• Industrial applications of refrigeration include food preservation, pharmaceutical storage, chemical processing, and climate control in buildings.

• Water purification processes

• Heating systems for industrial buildings

• Air conditioning for residential homes

Define energy efficiency in the context of refrigeration systems.

• Energy efficiency is the total energy consumed by the system.

• Energy efficiency refers to the size of the refrigeration unit.

• Energy efficiency is the amount of refrigerant used in the system.

• Energy efficiency in refrigeration systems is the ratio of useful cooling output to energy input, often measured by the Coefficient of Performance (COP).

How do refrigerants impact energy consumption in refrigeration systems?

• Refrigerants impact energy consumption by affecting the efficiency of heat transfer and the workload on compressors.

• Refrigerants increase energy consumption by reducing heat transfer efficiency.

• Refrigerants only impact the temperature of the system.

• Refrigerants have no effect on energy consumption.