What is refrigerant for kids?
What is refrigerant for kids?
A refrigerant is a chemical that is found in an air conditioner, a refrigerator, and in other refrigeration equipment. Refrigerants can be a liquid or a vapor, depending on their temperature and pressure.
What is refrigeration simple words?
The term refrigeration means cooling a space, substance or system to lower and/or maintain its temperature below the ambient one (while the removed heat is rejected at a higher temperature). In other words, refrigeration is artificial (human-made) cooling.
What is the function of refrigeration?
The fundamental reason for having a refrigerator is to keep food cold. Cold temperatures help food stay fresh longer. The basic idea behind refrigeration is to slow down the activity of bacteria (which all food contains) so that it takes longer for the bacteria to spoil the food.
What are the 4 process of refrigeration?
The 4 Main Refrigeration Cycle Components
- The compressor.
- The condenser.
- The expansion device.
- The evaporator.
Who invented the refrigerator Britannica?
In the 1840s John Gorrie, a doctor in Apalachicola, invented a refrigeration apparatus to cool the rooms…… refrigeration, the process of removing heat from an enclosed space or from a substance for the purpose……
What is the advantage of refrigeration?
It keeps the cooling chain and it breaks the bacterial developments. The consumers/end customers can corroborate a processing in the best hygienic conditions.
What are the method of refrigeration?
Top 5 Methods of Refrigeration (Natural and Artificial Methods of Refrigeration)
- Natural Methods: (a) By Using Ice or Snow:
- Mechanical Refrigeration: Artificial or mechanical methods of producing cold have been used since 1850.
- Steam-Jet Refrigeration:
- Refrigeration by using Liquid-Gases:
- Thermo-Electric Refrigeration:
Why are compressors used?
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are compressible, the compressor also reduces the volume of a gas.
What is the main purpose of a compressor?
The purpose of the compressor is to circulate the refrigerant in the system under pressure, this concentrates the heat it contains. At the compressor, the low pressure gas is changed to high pressure gas.
Who invented refrigerator?
The first form of artificial refrigeration was invented by William Cullen, a Scottish scientist. Cullen showed how the rapid heating of liquid to a gas can result in cooling. This is the principle behind refrigeration that still remains today.
What is refrigerant in a refrigerator?
Refrigerant – This is the substance which evaporates in the fridge causing freezing temperatures. 3. Expansion Valve – The expansion valve which is made up of a thin copper coil reduces the pressure on the liquid refrigerant.
What is an example of a Cold Storage refrigerator?
A common example is the home refrigerator, in which foods can be stored for days at temperatures of around 40° F (4° C). Foods kept frozen at temperatures near 0° F (–18° C) can be stored for months without decay or loss of flavor.
What is refrigeration used for commercially?
Refrigeration is also used commercially for storing food in warehouses and for transporting foodstuffs, biological materials, and certain chemicals. Many vegetables are refrigerated during transit so that they will last longer on store shelves. (See also Food Processing .)
How does a refrigerator work?
The compressed gas is then condensed into a liquid by the condenser, which transfers heat to the external surroundings through coils at the back or bottom of the refrigerator. The liquid is then passed through an expansion valve and fed back into the cold-chamber evaporator, where it absorbs heat as it is vaporized.