Refrigerators work by causing the refrigerant circulating inside them to change from a liquid into a gas. This process, called evaporation, cools the surrounding area and produces the desired effect.

What is the principle of refrigerator?

Refrigerators work by causing the refrigerant circulating inside them to change from a liquid into a gas. This process, called evaporation, cools the surrounding area and produces the desired effect.

What are the principal parts of refrigerator?

The main working parts of a refrigerator include: a compressor, a condenser, an evaporator, an expansion valve, and refrigerant.

What is the working principle of compressor in refrigerator?

In the first stage of the refrigeration cycle, refrigerant enters a compressor as a low-pressure vapor. The compressor compresses the refrigerant to a high-pressure vapor, causing it to become superheated. Once the refrigerant is compressed and heated, it leaves the compressor and enters the next stage of the cycle.

Who gave principle of refrigerator?

Later in the early 17th century, the word “refrigeratory” was used. In 1755, Scottish professor William Cullen designed a small refrigerating machine, which slowly changed the world.

What are the four stages of refrigeration?

The 4 Main Refrigeration Cycle Components

  • The compressor.
  • The condenser.
  • The expansion device.
  • The evaporator.

What is the function of evaporator?

The main job of the evaporator coil is to cool the refrigerant so that it can absorb the heat. As the fan blows air over the coil, the refrigerant becomes cold and turns into a vaporous state.

What are the 5 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.

Who invented refrigerator in India?

That was until Godrej & Boyce, the makers of locks and cupboards, which have kept generations of Indians and their valuables and other knickknacks safe, manufactured the first Indian refrigerator in 1958.

Which gas is used in the refrigerator?

The ammonia is used in the refrigerator to cool the water. Ammonia is composed of one atom of nitrogen and three atoms of hydrogen.

What is the theory of the operation of the refrigeration system?

Theory of operation. The refrigeration process uses a mixture of two isotopes of helium: helium-3 and helium-4. When cooled below approximately 870 millikelvins, the mixture undergoes spontaneous phase separation to form a 3 He-rich phase (the concentrated phase) and a 3 He-poor phase (the dilute phase).

What is refrigeration?

In other words, refrigeration means artificial (human-made) cooling. Heat is removed from a low-temperature reservoir and transferred to a high-temperature reservoir. The work of heat transfer is traditionally driven by mechanical means, but can also be driven by heat, magnetism, electricity, laser, or other means.

What is the main function of a refrigerator?

A refrigerator (colloquially fridge) is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature.

What is inside a refrigerator?

A refrigerator (colloquially fridge) is a home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature.