components of refrigerator<\/figcaption><\/figure>\n\n\n\nA refrigerator works by circulating the cold liquid i.e. the refrigerant throughout it. Modern refrigerators do this by maintaining high energy efficiency.<\/p>\n\n\n\n
A capillary tube is used as a throttling device. The cold liquid is produced using the throttling phenomena. The refrigerant getting inside the throttling device is at high pressure. As the refrigerant passes through the throttling device a huge drop in pressure occurs because the capillary tube offers hindrance to the refrigerant flow.<\/p>\n\n\n\n
As the pressure drops the boiling point of liquid comes down and the refrigerant liquid evaporates. It is to be noted that only a portion of the refrigerant evaporates. The temperature of the refrigerant drops and you can notice this difference when you check the temperature of the start and end of the throttling device.<\/p>\n\n\n\n
This refrigerant is now passed through the evaporator which runs inside the refrigerator and absorbs heat. The refrigerant inside this heat exchanger i.e. evaporator further evaporates and its temperature does not further increase as the phase change occurs.<\/p>\n\n\n\n
A small fan is located near the evaporator to circulate the cold air throughout the refrigerator.<\/p>\n\n\n\n
Now in order to continue this cooling effect, we have to pass this refrigerant continuously. Before the refrigerant again passes through the capillary tube i.e. evaporator its pressure must be increased. <\/p>\n\n\n\n
To do so a compressor is used for this purpose. It compresses the gas and increases its pressure along with its rise in temperature. After the refrigerant comes out of the compressor it is a high-pressure vapor.<\/p>\n\n\n\n
To convert it into liquid another heat exchanger i.e. a condenser is used. It liberates heat to the surroundings as it is located outside the refrigerator. The vapor condenses to liquid and the temperature reaches the normal level.<\/p>\n\n\n\n
Now the refrigerant is in its initial stage and is sent to the throttling device\/expansion valve\/capillary tube again.<\/p>\n\n\n\n
This process is repeated again and again to produce the required cooling effect and the cycle is called the vapor compression cycle.<\/p>\n\n\n\n
Now you have understood the normal working of the refrigerator but this happens with some issues. The modern refrigerator overcomes them to continue functioning normally.<\/p>\n\n\n\n