The fridge is a device which is in each modern house. For maintaining operability of the fridge it is necessary to follow simple rules. One of the most important rules – not to put hot in the fridge.
The most ordinary fridge has the typical scheme of work. All devices of this kind use the identical principle and the logician of their functioning doesn't change already for many years. Be it a home cooler or the production fridge in the shop.
Since early years of children learn that can't be put hot in the fridge. To understand why it is impossible to do it, it is necessary to deal with the device of the modern fridge. Work mechanism simple and interesting.
Device of the modern fridge
Any classical fridge is the tight camera with a door. Walls are equipped with good thermal insulation. The advantage of thermal insulation is very high and respectively the camera has to be tight. The door is supplied with an elastic band. Rubber in a fridge door special. It has ability to primagnichivatsya to the metal casing and to maintain dense connection of a door and the case. Anchoring is provided with existence in a compound of rubber of magnetic dust. Use of such elastic bands allows to do a door light and not to make special latches.
Completely closed door provides tightness of the camera and its heatisolation. Besides the case and a door, the fridge consists of the compressor and a coil. The coil is a tube in which there is a special substance.
In a design not one coil, and is used at once a little. One is located on a back wall outside of the fridge, and the second - in the refrigerator. Internal the coil is hidden in camera walls behind beautiful plastic facing.
Internal the coil is cooled, and external heats up. It somewhat explains logic of operation of the fridge.
Principle of operation of the fridge
The cunning which is used in operation of the fridge just and consists in a difference of temperatures of internal and external coils. This difference is reached due to different aggregate state of liquid. Here it is necessary to place emphasis that in coils there is a special liquid. This liquid is called хладоген or freon.
Remembering laws of physics from the school program, it is possible to pay attention to regularities at boiling process. In the course of boiling the energy is absorbed. Means, the usual vessel in which there is a boiling liquid will be cooled as boiling of liquid will require energy.
It is important to understand that it is impossible to compare this process to boiling of a teapot, which walls hot. In this case the teapot heats water. In a case which is described above liquid begins to boil spontaneously. There is it because of pressure difference. The pressure in space where there is a liquid, the lower it a boiling point is lower. For certain you know that highly in mountains the light boiling of water is explained by low pressure.
Now remember home coolers. In walls of the fridge the coil with freon in which there is a process of its boiling is located. When boiling freon the coil cools down approximately up to-18 degrees, as provides cold in the refrigerator. This cold can be used for maintenance in the camera of low temperature.
In parallel with this process of couples of freon contracts the fridge compressor, turning back into liquid. Further it gets to the coil located outside of the fridge where cools down. For effective cooling the coil is supplied with a radiator. In the course of operation of the fridge this radiator always warm or hot.
Now there is a main issue connected with the reason of transformation of freon into steam and its boiling in fridge walls. Here too everything is very simple. Freon in the fridge passes through a long and thin coil. It causes rather small pressure drop in a system. Thereof pressure drop there are also freon boilings . It causes use of special hladogen. Not any liquid is capable to begin to boil at small umensheniye of pressure. Work mechanism logical and clear.
Why it is impossible to put hot in the fridge
Understanding logic of operation of the fridge, it is possible to answer a question why it is impossible to put hot in the fridge.
Condition of operability of the fridge – process of boiling of freon in walls. The wall cools down, and temperature transmitters report to the compressor that process of circulation of freon can temporarily stop and cease to be boiled хладоген. Until the wall heats up on natural causes, the motor of the fridge doesn't work. In it there is a special value when energy saving of the device is discussed.
Respectively, if in the fridge to put hot, then heating of walls will happen quicker. The fridge will be started and will work without stopping, won't cool down still more hotly. It causes an overload of all systems of the fridge and excessive power consumption. Besides, process of functioning of the fridge rises under a question. All systems and hydraulics in walls paid off on the normal mode of work which means use of products of room temperature. At hit in the camera of the fridge of a hot subject, a condition of freon changes.
All described factors can lead to the output of the fridge out of operation. The compressor will be overloaded, and at poor quality of production will break. The similar indifferent relation can easily ruin even the new modern fridge.
There are also indirect problems which the user who put a hot product in the fridge faces. If to put hot in the fridge, then glass regiments can crack from sharp temperature drop, and walls of the fridge will intensively become covered with hoarfrost which will turn into the whole ice cap. Such ice cap will reduce overall performance.