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Where does the electricity consumed by the refrigerator go?

Update:2021-01-30
Summary: Where does the electricity consumed by the refrigerator go? People often ask, what exactly is the refrigeration principle of refrigerators? The tempe...
Where does the electricity consumed by the refrigerator go?
People often ask, what exactly is the refrigeration principle of refrigerators? The temperature in the refrigerator has dropped, so where did the heat in the refrigerator go? Isn't this a violation of the law of conservation of energy? Where does the electricity consumed by the refrigerator go? Will it be directly cooled as if it heats up quickly?
The heat in the refrigerator compartment and freezer compartment is radiated into the room through the outer wall of the refrigerator. This is a process of energy transfer and does not violate energy conservation. At the same time, the heat dissipated into the room also includes the heat generated by the internal equipment of the refrigerator.
So some people open the refrigerator door and want to cool the room in this way. It is not feasible: the heat dissipation of the refrigerator = the cooling capacity of the refrigerator + the heat generation of the refrigerator. So the more you open the refrigerator door, the higher the indoor temperature.
In the refrigerator system, electric energy does not participate in the refrigeration, it only provides power for the refrigerant-the refrigerator wants to refrigerate, the refrigerant must keep moving in the pipe, which we will talk about later.YT-A-45X 40L 50W ABS Thermoelectric Cooler Box
For example, the electric energy here is like gasoline in a car. What actually makes the car go forward is the engine, but the gasoline provides energy for the engine.
We regard the refrigerator as two parts: inside and outside the refrigerator. The main function of the device in the refrigerator is to absorb heat, that is, to refrigerate. Its main device is an evaporator. The function of the external device of the refrigerator is to dissipate heat and provide power. Its main devices are compressor, condenser and capillary tube.
Here I will focus on the principle of refrigeration of refrigerants. It does not rely on lowering its own temperature to achieve the heat absorption effect as we imagined. Instead, a physical phenomenon is used-liquid boiling to absorb heat. Why can liquid refrigerant in the refrigerator boil? This is another physics knowledge-the lower the pressure, the lower the boiling point.
The refrigerant is gaseous at room temperature, in other words-put the liquid refrigerant at room temperature, it will boil. The reason why the refrigerant can become liquid in the refrigerator is because the refrigerator provides a high-pressure environment for the refrigerant.
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