What is refrigerator and its uses?

A refrigerator is a machine used for keeping things cold. It is sometimes called a fridge or an icebox. It is normally maintained at 4-5 degree Celsius for household use. People put food and drinks in it, to keep those items cold or good (unspoiled) for a longer time.

What is a refrigerator?

A refrigerator is one of our most valuable household appliances. It keeps food and drinks cool, by pushing a liquid refrigerant through a sealed system, which causes it to vaporize, and draw heat out of the fridge. The vaporized refrigerant then is passed through coils outside the fridge (at the back or the bottom).

What are the benefits of refrigerator?

Refrigeration slows bacterial growth. Bacteria exist everywhere in nature. They are in the soil, air, water, and the foods we eat. When they have nutrients (food), moisture, and favorable temperatures, they grow rapidly, increasing in numbers to the point where some types of bacteria can cause illness.

What is the function of the refrigerator?

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 bacte- ria (which all food contains) so that it takes longer for the bacteria to spoil the food.

Why is it called refrigerator?

The word refrigerator originates from the Latin verb refrigerare which was derived from the Latin adjective frigus, meaning cold.

What are the parts of refrigerator?

Learn about the main parts of a refrigerator, from the compressor to the evaporator coils, and discover what each part does.

• Compressor. The compressor is essentially an engine.
• Condenser coils.
• keep condenser coils clean.
• Expansion Device.
• Evaporator coils.
• keep air vents unobstructed.

Why is it called a refrigerator?

What are the features of refrigerator?

For more innovative models, check out our full refrigerator ratings.

• Speed Chilling. Adding hot items to the refrigerator (say, a warm pot of chili or chicken stock) can send its internal temperature soaring.
• Five-Door Configurations.
• Trickle-Down Efficiency.
• Convertible Compartments.
• Giant Touch Screens With Digital Smarts.

What is the parts of refrigerator?

What gas is in a fridge?

Fridges used to use a gas called Chloro-Flouro-Carbon or CFC, but the newer models tend to avoid these due to them being harmful to the atmosphere. Instead, your fridge probably uses another type of gas called HFC-134a, which becomes a liquid at -26.6 degrees Celsius.

What is coldest part of refrigerator?

Cold air sinks, so it collects at the bottom and, in a fridge freezer, the bottom shelves will be coldest. But in a fridge with an ice-making compartment at the top, it will be the top. Frost-free fridges circulate the air and have much more even temperature distribution.

What are the 5 parts of a fridge?

In the refrigeration cycle, there are five basic components: fluid refrigerant; a compressor, which controls the flow of refrigerant; the condenser coils (on the outside of the fridge); the evaporator coils (on the inside of the fridge); and something called an expansion device.

How is the temperature maintained in a refrigerator?

It is sometimes called a fridge or an icebox. It is normally maintained at 4-5 degree Celsius for household use. People put food and drinks in it, to keep those items cold or good ( unspoiled) for a longer time. A refrigerator has a heat pump which takes heat away from the air inside the fridge. The heat is moved to the air outside.

Who was the inventor of the self contained refrigerator?

A self-contained refrigerator, with a compressor on the bottom of the cabinet was invented by Alfred Mellowes in 1916. Mellowes produced this refrigerator commercially but was bought out by William C. Durant in 1918, who started the Frigidaire company to mass-produce refrigerators.

Where does the heat come from in a refrigerator?

A refrigerator has a heat pump which takes heat away from the air inside the fridge. The heat is moved to the air outside. The heat pump is usually driven by an electric motor .

Which is the unit of refrigeration in a refrigerator?

The measured capacity of refrigeration is often dimensioned in the unit of kW or BTU/h. Domestic and commercial refrigerators may be rated in kJ/s, or Btu/h of cooling. For commercial and industrial refrigeration systems, the kilowatt (kW) is the basic unit of refrigeration, except in North America, where both ton of refrigeration and BTU/h are