It is so hot in summer, the refrigerator can freeze the water, open the refrigerator door, will the room cool down
In the hot summer days, especially in the dog days, the heat buildup in the house is very serious. As soon as you open the door, you will feel the heat waves. After a long time, you will sweat profusely, like a sauna. At this time, I went to the refrigerator to get a bottle of drink. When I opened the door of the refrigerator, the ice was very cool and it was very cool. Then open the refrigerator, will the room cool down and become cooler?
To understand these, let's start with the working principle of the refrigerator.
How the refrigerator works
The compressor is the heart of a refrigerator, and the reason why the refrigerator can be cooled is from this set of devices. The compressor set contains four key components, namely the evaporator, compressor, condenser, and expansion valve (capillary tube). The refrigerant used is Freon.
The Freon is compressed to high-temperature and high-pressure gas by the compressor, and then the gas enters the condenser to change the high-temperature and high-pressure gaseous refrigerant into a low-temperature and high-pressure liquid refrigerant, and then passes through the expansion valve (the expansion valve is a throttling device, which is generally It is replaced by capillary tube. When the capillary tube flows out, the large tube is changed to the small tube, and the refrigerant is restricted by throttling), so the pressure will drop after the refrigerant comes out, and the temperature will continue to drop, becoming a gas-liquid two-phase, and then the refrigerant enters the evaporator for heat exchange After gasification, the high temperature and low pressure refrigerant returns to the compressor. Running such a process over and over again can lower the temperature in the refrigerator, ice drinks, and keep fresh fruits and vegetables.
Back to the topic, then opening the refrigerator can reduce the indoor temperature?
The answer is no. Just like an air conditioner, you put the outdoor unit indoors and turn on the air conditioner indoors, that is, you can feel the coolness at the air outlet of the air conditioner, and the overall temperature of the room will not drop, because while cooling, it is also dissipating heat. (I remember a short video some time ago. A person installed an air conditioner in the dormitory, and the internal machine was installed under the upper bunk of the bunk bed. He was cool, but the outside machine was placed at the head of the bed and the temperature in the whole dormitory rose. In addition, a short video also attracted social attention. There was an old grandmother’s air conditioner outside the room was installed in the room, the air conditioner became useless). The same is true for refrigerators. There is a heat dissipation process, so heat is taken out at the same time as it is cooled. When the refrigerator is closed, the heat in the refrigerator is taken out to isolate the outside, and the natural temperature will slowly drop, but now it is not closed. , The temperature can't drop.
So I also tell everyone to pay attention to the following points when using the refrigerator:
1. Be sure to close the refrigerator door. If the refrigerator door is not closed, and the temperature falls below the specified temperature, the compressor will continue to work, consume electricity, and easily damage the refrigerator compressor.
2. Store items reasonably, too much storage may affect the refrigeration effect of the refrigerator
3. Clean the refrigerator regularly, too much ice will also affect the refrigeration of the refrigerator
The impact of compressor refrigerators on the environment
Compressor refrigerators have been used for so many years. In fact, since Freon was invented and used, it has been destroying the ozone layer, because Freon may leak when producing or using refrigerators.
It is hoped that in the near future, Stirling refrigerators can replace compressor refrigerators, protect the ecological environment, and delay the speed of global warming.
