Viessmann statement on the Second Law of Thermodynamics asserts that it is impossible to build such a device, which operates in a circular motion, with no effect without transferring heat from a cooler to a hot body. This means that energy will not flow from cold climates to tropical areas without outside help. Continuous refrigerator can be obtained through several processes. Effectively any engine heat cycle, when reversed, becomes a refrigeration cycle.
The vapor pressure cycle is the most commonly used in refrigeration and ventilation. The evaporation cycle provides another system, especially in systems where heat is available economically. Jet-jet systems are also used successfully in many cooling systems while air circulation is often used to cool the aircraft.
Hot gas bypass, or HGBP for short, uses a volume control system that prevents the refrigerator compressor from riding a bicycle regularly. At a given 24 hours, the compressor can rotate twenty times or more depending on the cooling requirements of the frozen space. Cycling compressor leads to significant differences in the temperature of the frozen structure which is not acceptable for other applications such as blood and plasma banks. We provide the following diagram to show how the HGBP method works.
Before getting into the basics of refrigeration, a few basic definitions should be considered:
A). Heat is a type of energy transfer due to differences in temperature. Heat is everywhere to a greater or lesser degree. As a form of energy they cannot be created or destroyed, although other forms of energy can be converted into heat, and vice versa. It is important to remember that heat energy travels in only one direction; from heating to a cool object, object, or place.
B). Cold is a related term that refers to a lack of heat in an object, object, or place. One definition defines it as the absence of heat, no process built to achieve "perfect zero," a state in which all heat is removed from any object, object, or place.
C). Temperature removal lowers the temperature and can be achieved by using ice, ice, cold water or mechanical refrigerator.
D). Mechanical refrigerator, the use of mechanical components programmed in the "refrigerator system" for the purpose of heat transfer.
E). Refrigerators, chemical compounds that are pressed alternately and then thrown into liquids and then allowed to expand into vapor or gas as they are pumped through a refrigeration system to rotate.
The refrigerator cycle is based on the long-established system of the body, which turns gas into a gas that releases heat into an surrounding object or area. (You can test this system by simply moistening your finger and lifting it. You soon begin to feel cooler than others, especially if you are facing air movement. That is because the liquid you are immersing in it evaporates, and as it does.
F). Basic components of the refrigeration system.
To achieve this, the refrigerator is pumped through a closed refrigerator system. If the system was not shut down, it would use the refrigerator to disperse it to the surrounding media; because it is closed, the same refrigerator is used repeatedly, as it goes through the cycle releasing some heat and releasing it.
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