While the equipment is functioning properly, the user is not interested in how it works. Knowledge of how the refrigerator works will be needed when a breakdown occurs: it will help to avoid a serious malfunction or to quickly identify it. Proper operation also depends heavily on user awareness. The article will consider the device of a domestic refrigerator and its work.
The principle of operation of a modern fridge is based on a substance such as freon, which is able to quickly change its state and cool products thanks to its outstanding qualities. Modern production uses only safe and environmentally friendly refrigerants that are guaranteed not to harm your health and the health of your loved ones.
So, in the fridge there are 4 main components:
1.Refrigerant – a substance that goes in a circle and transfers heat. A special gas, freon, is used as a refrigerant.
2. A capacitor is a tube on the back of the case (in the latest models it can be placed on the side). The heat generated by the compressor during operation, the condenser is released to the environment. So the device does not overheat. That is why manufacturers prohibit the installation of equipment near batteries, radiators and stoves. Then overheating can not be avoided, and the motor will quickly fail.
3. A compressor is a motor that operates on the principle of a pump. It happens invertor and linear. Due to the start of the motor, freon moves through the pipes of the system, providing cooling in the chambers.
4. Evaporator – takes heat from the cooled object (products) and releases it (heat) to the refrigerant. Here freon boils and turns into a gaseous state. In this case, a large amount of heat is taken, the tubes in the chamber are cooled together with the air in the compartment. Usually the evaporator is the inner wall.
First, the refrigerant is at room temperature and is in a gas state. The compressor of the refrigerator compresses it in order to increase the pressure (because of which the temperature also rises), and pumps it into the condenser. Now the gas is hot, which means that the air is cold compared to it. With the help of a cold body, you can lower the temperature of the hot one, which the refrigerator does. In many models of refrigerators, the condenser is located on the back wall – this refrigerant passes through it to cool with the help of ambient air. When the refrigerant cooled, its temperature became room temperature again. But the pressure is still high – and we can lower it again. As a result of this process, the temperature drops even more – and there is what we consider cold.
The inevitable result of the refrigerator is the heating of air. It is not so significant, so we do not notice it. In modern refrigerators, several more stages are added to the cycle. The refrigerant under the influence of high pressure condenses and becomes liquid, generating heat, and in the evaporator under the influence of low pressure boils and turns into a gaseous state, absorbing heat. This is done to improve efficiency, reduce the size and energy consumption of the refrigerator.