Handbook for heating and ventilating engineers . while its great afl^nityfor and .solubility in water, are what make the absorptionsystem a possibility. 101. Compression System:—Compression machines maywork well with the use of any one of the four refrigerants ofTable 59, df the proper pressures and temperatures are ob-served and maintained. The common refrigerant for thl«type is, however, anhydrous ammonia, for reasons givenabove. Fig. 131 shows a diagrannmatic sketch of the com-pression system. To follow the closed cycle of the ammonia,start with a charge being compressed in the cylinder of
Handbook for heating and ventilating engineers . while its great afl^nityfor and .solubility in water, are what make the absorptionsystem a possibility. 101. Compression System:—Compression machines maywork well with the use of any one of the four refrigerants ofTable 59, df the proper pressures and temperatures are ob-served and maintained. The common refrigerant for thl«type is, however, anhydrous ammonia, for reasons givenabove. Fig. 131 shows a diagrannmatic sketch of the com-pression system. To follow the closed cycle of the ammonia,start with a charge being compressed in the cylinder of thecompressor. From this it is conveyed by pipe to the con-denser which, being cooled by water, abstracts the latentheat of the refrigerant and condenses it to a liquid. Fromthe condenser the liquid refrigerant is convoyed to the ex-pansion valve through which it expands into the evaporatoror brine cooler. In changing from a liquid to a gas in theevaporator it absorbs from the brine an amount of heat REFRIGERATION 287 REFRIGERATORROOn AT 50. COOLING WATER UOUIO AHnONIA [xFANSION VftLVE LIQUID AnnONlA Fig. 131. WAPn BRINE equivalent to the heat of vaporization of the leaving the evaporator the refrigerant is again readyfor the cylinder of the compressor, thus completing thecycle. If the refrigerant is ammonia, the compressor is com-monly of the vertical type, direct connected to a horizontalCorliss engine as shown in Fig. 132. This type of com-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectventila, bookyear1913
