10 Questions
What is vapour-compression refrigeration?
Vapour-compression refrigeration is a refrigeration cycle in which the refrigerant undergoes phase changes and is the most widely used method for air conditioning and refrigeration.
Where is vapour-compression refrigeration system commonly used?
Vapour-compression refrigeration systems are commonly used in air conditioning of buildings and automobiles, domestic and commercial refrigerators, warehouses, refrigerated trucks and railroad cars, and various commercial and industrial services.
What are some examples of industrial plants that use large vapor-compression refrigeration systems?
Oil refineries, petrochemical and chemical processing plants, and natural gas processing plants are among the many types of industrial plants that often utilize large vapor-compression refrigeration systems.
What is the definition of refrigeration?
Refrigeration is the process of lowering the temperature of an enclosed space by removing heat from that space and transferring it elsewhere.
What is another name for a device that performs refrigeration?
An air conditioner or refrigerator is another name for a device that performs refrigeration.
What is the main source of energy used in an absorption refrigerator?
A heat source such as solar energy or waste heat from factories.
How many coolants are used in an absorption refrigerator?
Two coolants are used: the first coolant performs evaporative cooling and then is absorbed into the second coolant.
What are some common applications of absorption refrigerators?
Absorption refrigerators are commonly used in recreational vehicles (RVs), campers, and caravans.
How can the heat required to power an absorption refrigerator be provided in recreational vehicles?
The heat can be provided by a propane fuel burner, a low-voltage DC electric heater, or a mains-powered electric heater.
In what other way can absorption refrigerators be used?
They can also be used to air-condition buildings using waste heat from a gas turbine or water heater.
Study Notes
Vapour-Compression Refrigeration
- Vapour-compression refrigeration is a refrigeration method that uses a compressor to compress refrigerant vapour, which then releases heat to the surroundings and condenses into a liquid.
- This method is commonly used in refrigerators, air conditioners, and heat pumps.
Industrial Applications of Vapour-Compression Refrigeration
- Large vapour-compression refrigeration systems are used in industrial plants, such as: • Meat processing plants • Dairy plants • Brewery plants • Air conditioning systems in large buildings
Refrigeration and Refrigerators
- Refrigeration is the process of removing heat from a substance or an enclosed space to lower its temperature.
- A device that performs refrigeration is also known as a refrigerator or freezer.
Absorption Refrigeration
- Absorption refrigeration is a heat-driven refrigeration method that uses heat instead of mechanical energy to drive the cooling process.
- The main source of energy used in an absorption refrigerator is heat.
- Absorption refrigerators typically use two coolants.
- Common applications of absorption refrigerators include: • Recreational vehicles (RVs) • Boats • Remote areas where electricity is not available
- In RVs, the heat required to power an absorption refrigerator can be provided through propane or gas.
- Absorption refrigerators can also be used in conjunction with solar power.
Test your knowledge about Vapour-Compression Refrigeration
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
