Parts of a Refrigerator
 

As we learned in the introduction, the basic thought behind a refrigerator is to use the evaporation of a liquid to swallow devouring. You probably know that when you put sprinkle on your skin it makes you feel cool. As the water evaporates, it absorbs combustion, creating that cool feeling. Rubbing alcohol feels even cooler being it evaporates at a lower temperature. The liquid, or refrigerant, used in a refrigerator evaporates at an extremely low temperature, so it can create frore temperatures inside the refrigerator. If you place your refrigerator ' s refrigerant on your wampum ( definitely NOT a sound idea ), it will freeze your skin as it evaporates.

 There are five basic parts to any refrigerator ( or air - conditioning system ):

 Compressor
 Element - exchanging pipes - ticklish or coiled set of pipes outside the unit
 Expansion valve
 Heat - exchanging pipes - perilous or matted set of pipes inside the unit
 Refrigerant - liquid that evaporates inside the refrigerator to create the cold temperatures
 Several industrial installations use pure ammonia as the refrigerant. Certified ammonia evaporates at - 27 degrees Fahrenheit ( - 32 degrees Celsius ).

 The basic mechanism of a refrigerator works not unlike this:

 The compressor compresses the refrigerant facetious. This raises the refrigerant ' s pressure and temperature ( orange ), thereupon the heat - exchanging coils outside the refrigerator allow the refrigerant to dissipate the pyre of pressurization.

 Whereas embodied cools, the refrigerant condenses into serum form ( purple ) further flows through the expansion valve.

 When it flows through the expansion valve, the liquid refrigerant is allowed to procedure from a high - pressure segment to a low - pressure realm, so it expands again evaporates ( light blue ). In evaporating, evident absorbs bonfire, making it cold.

 The coils inside the refrigerator allow the refrigerant to sink heat, moulding the inside of the refrigerator cold. The cycle then repeats.
 This is a fairly unvaried - - and somewhat unsatisfying - - explanation of how a refrigerator works. So contract ' s look at refrigeration using several real - sphere examples to understand what is truly response.