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REFRIGERATION HISTORY & BASICS CLASS NOTES

REFRIGERATION HISTORY & BASICS CLASS NOTES Refrigeration is lowering of temperature. Conventional & non-conventional methods are in use.  Use Silica gel in the drier cum filter to remove any moisture and impurities. Use steel pipes with ammonia. Use copper pipes with halogenated hydrocarbon refrigerants. Use dry evaporators & air cooled condensers   in small capacity…