What are the 4 cycles of refrigeration?

Principles of Refrigeration For this reason, all air conditioners use the same cycle of compression, condensation, expansion, and evaporation in a closed circuit. The same refrigerant is used to move the heat from one area, to cool this area, and to expel this heat in another area.

What are the 4 basic component of refrigeration system?

Mechanical refrigerators have four basic elements: an evaporator, a compressor, a condenser, and a refrigerant flow control (expansion valve). A refrigerant circulates among the four elements changing from liquid to gas and back to liquid.

What are the basic parts of a refrigerator?

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.

What is COP in refrigeration?

The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required.

Is refrigerant liquid or gas?

The refrigerant, a chemical compound that changes easily from liquid to a gas. When the refrigerant is pushed into the compressor, it is a low pressure gas.

What are the methods of refrigeration?

The steady state refrigeration systems can be broadly classified into four groups based on the method employed as follows:

• vapor compression refrigerators.
• turbine based compression refrigerators.
• vapor absorption refrigerators.
• thermoelectric refrigerators.

What are types of refrigeration?

4 Types of Refrigeration Systems

• Evaporative Cooling. Evaporative cooling units are also referred to as swamp coolers.
• Mechanical-Compression Refrigeration Systems. Mechanical compression is used in commercial and industrial refrigeration, as well as air conditioning.
• Absorption.
• Thermoelectric.

What are the 7 main components of direct system of refrigeration?

The main components of a refrigeration system are the condenser, the compressor, the evaporator and the expansion valve.

• Condenser. Condensation changes gas to a liquid form.
• Compressor.
• Evaporator.
• Expansion Valve.

How many parts does a fridge have?

five
There are five basic components in the refrigeration cycle, including fluid refrigerant, a compressor, the condenser coil, and the expansion device.

What is the most important part of a refrigerator?

The compressor is one of the most important parts. It moves the refrigerant throughout the entire machine, creating that cooling effect we want for our food. A variety of issues can arise if the compressor gets too dirty or dusty, or if it breaks.

What is COP formula?

COP = |Q| W. COP is defined as the relationship between the power (kW) that is drawn out of the heat pump as cooling or heat, and the power (kW) that is supplied to the compressor.

What is a brief description of the basic refrigeration cycle?

Refrigeration cycle is thermodynamic cycle to generate refrigerating effect with the use of evaporator, compressor, condenser & expansion valve. This process is basically a thermodynamic process where working fluid absorbs heat from the surrounding at low temperature and reject the heat to the atmosphere at higher temperature.

How does the refrigeration cycle work in a fridge?

The Refrigeration Cycle. The refrigeration cycle starts and ends with the compressor. The refrigerant flows into the Compressor where it is compressed and pressurised. At this point, the refrigerant is a hot gas. The refrigerant is then pushed to the Condenser which turns the vapour into liquid and absorbs some of the heat.

What are the basic principles of refrigeration?

The Refrigeration basic principle is that with the aid of a heat pump, the refrigerant is being compressed to the condenser and capillary tube thus increasing its temperature (50-60°C) and pressure (750 kPa) in the refrigerator being cooled down by the condensing unit to 32°C depending the existing ambient temperature.

What is basic refrigeration system?

It is simply a process of transporting heat from one place to another. The vapour-compression system is the most commonly used method of refrigeration. It is frequently used in large cold rooms like industrial chillers. The main components of a refrigeration system are the condenser, the compressor, the evaporator and the expansion valve.