In this letter, as Panel Sistem we would like to increase the consciousness about refrigeration, take attention to a few issues that what is refrigeration and describe the refrigeration in our point of view.


General definition of refrigeration is to decrease the temperature of an element or ambient, under the temperature of surrounding ambient of this element or ambient.

If we would like to define refrigeration in other terms; refrigeration is decreasing the heat of an element by transferring the heat to another place.