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There are many differant types of compressors, so il keep it as simple as I can. the compressor is the heart of the refrigeration system. It is 1 of the 4 main components in a system. It is 1 of the 2 pressure changes in the system, the other being the metering device (many of them as well). refrigerant is sucted from the suction line/pipe into the compressor. once it is in the compressor it is then compressed depending on what type of compressor it is (I will explain a few lower) from a cold low presure refrigerant into a high presure hot refrigerant. can you deduct from that what the purpose of a metering device is? After the frigerant has been compressed it is sent to the condensor coil to be (you got it) condensed. Much like the rain cycle. I would go on but this is to just cover the compressor. The compressor not only keeps the refrigerant moving throughout the hole system it also creates a pressure change. why raise the temperature in a machine that is designed to keep this cool? (I will leave you with that because thats a hole new chapter to expand on) I will give a breif description on how some of the many compressors work. There are 3 catagories of each type of compressor. Hermetique, semi-hermetique and open (or belt driven from a seperate motor).These are the most commonly found compressors.

1.reciprocating - Using pistons to compress the refrigerant. as the piston goes down it creates a vacuum opening up to the suction line sucking the refrigerant in until the piston is as far down on its stroke as it can. on the up stroke of the piston it creates a positive pressure pushing the reed (flap over a cylinder head) open pushing the refrigerant into the next cylinder chamber or out into the discharge line. It comes in all three types and used over a wide range of refrigeration feilds.

rotary - The rotary compressors have two rotating elements, like gears, between which the refrigerant is compressed. These compressors can pump the refrigerant to lower or moderate condensing pressures. Since they can handle small volume of the gas and produce lesser pressure, they are used in fewer applications. Mostly semi types.

screw - The screw compressors comprise of a pair of meshing screws between which the refrigerant gets compressed. They can produce high pressure for small quantity of gas. They consume less power than the reciprocating compressors and are being used widely. Usually because of its size and noise they are rarely used for domestic applications.

centrifugal - The centrifugal compressors comprise of the impeller or the blower. As the impeller rotates at very high speed into a volute casing (diffuser) causing a negative pressure (differant to all the others) They can handle large quantities of gas but at relatively lower condensing pressure. Used more for chillers and very big systems (skyscapers) and take a lot of power on start up.

scroll -The scroll compressor comprises of two interleaved scrolls of which one is fixed and the other orbits eccentrically without rotating. During its motion small gaps are created between the scrolls where the refrigerant gets compressed. The scrolls can have different shapes like involute, Archimedean spiral or hybrid curve. In another arrangement both the scrolls may be rotating eccentrically to produce the compression.

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How does a fridge work without a compressor?

A fridge without a compressor can use a thermoelectric cooling system, which operates using an electric current flowing through two dissimilar conductors to create a temperature difference. This temperature gradient allows heat to be transferred from the inside of the fridge to the outside, cooling the interior. However, thermoelectric fridges are usually less efficient than compressor-based ones.


What is the weight of an average fridge compressor?

The weight of an average fridge compressor can vary depending on the make and model, but typically ranges between 30 to 50 pounds. This weight includes the motor, pump, and other components that make up the compressor unit. It is important to handle the compressor with care due to its weight and potential for containing hazardous materials.


What type of energy does the fridge use?

A fridge typically uses electrical energy to operate. The electricity powers the compressor, which circulates the refrigerant to cool the interior of the fridge.


How do you check the pressure of a fridge compressor?

Checking the pressure of a fridge compressor is easy. Remove the compressor and give it a shake. After taking the compressor off it should make a sound while shaking that means itÕs still good if the compressor makes no sound that means it has went bad.


What energy does a fridge use and how?

A fridge typically uses electrical energy to power its compressor, which circulates refrigerant to cool the interior. The compressor operates by compressing the refrigerant gas, which increases its temperature and pressure, before releasing the heat outside the fridge. This process allows the fridge to maintain a cool temperature inside and preserve food.

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How does a fridge work without a compressor?

A fridge without a compressor can use a thermoelectric cooling system, which operates using an electric current flowing through two dissimilar conductors to create a temperature difference. This temperature gradient allows heat to be transferred from the inside of the fridge to the outside, cooling the interior. However, thermoelectric fridges are usually less efficient than compressor-based ones.


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Can leaving a fridge open break it?

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How do you check the pressure of a fridge compressor?

Checking the pressure of a fridge compressor is easy. Remove the compressor and give it a shake. After taking the compressor off it should make a sound while shaking that means itÕs still good if the compressor makes no sound that means it has went bad.


What simple machine is used in a fridge?

A fridge primarily uses a refrigeration cycle, which involves a compressor, evaporator, and condenser—these components can be considered simple machines. The compressor is a type of pump that compresses refrigerant gas, while the condenser and evaporator facilitate heat exchange, moving heat out of the fridge. Additionally, the door of the fridge operates like a lever, allowing easy opening and closing. Overall, these elements work together to maintain the cool temperature inside the refrigerator.


What energy does a fridge use and how?

A fridge typically uses electrical energy to power its compressor, which circulates refrigerant to cool the interior. The compressor operates by compressing the refrigerant gas, which increases its temperature and pressure, before releasing the heat outside the fridge. This process allows the fridge to maintain a cool temperature inside and preserve food.