Handbook for heating and ventilating engineers . t abstracted from thewater vapor is given to the cool,strong liquor before entering thegenerator. As shown, the strongliquor may be divided, part through the rectifier and partthrough the exchanger, or thestrong liquor may all go throughthe exchanger first and thenthrough the rectifier. Wherestrong liquor is so used, the recti-fier is always of the enclosedtype. Rectifiers using water asthe cooling medium are oftencalled dehydrators, the term rec-tifier being more properly usedwhen the cooling medium is thestrong liquor. 199. Condenser
Handbook for heating and ventilating engineers . t abstracted from thewater vapor is given to the cool,strong liquor before entering thegenerator. As shown, the strongliquor may be divided, part through the rectifier and partthrough the exchanger, or thestrong liquor may all go throughthe exchanger first and thenthrough the rectifier. Wherestrong liquor is so used, the recti-fier is always of the enclosedtype. Rectifiers using water asthe cooling medium are oftencalled dehydrators, the term rec-tifier being more properly usedwhen the cooling medium is thestrong liquor. 199. Condensers for absorption~ systems do not differ in designfrom those used for compressionsystems. The same types are used,and in the same manner, the sur-face being somewhat less due tothe precooling effect of the recti-fiers or dehydrators. As a gen-eral statement, it is claimed thatfrom 20 to 25 per cent less surfaceis required in the condenser for anabsorption machine than is re-quired in one for a compressionmachine. 300 HEATING AND VENTILATION LOXR. I oooocx^S VtxxxxxdI^ooooo^ ^pooooo I ..v^t^l =^00000 I 5CCH r^oocxx)^ 200. Absorbers may be classified as dry absorbers, wetabsorbers, atmospheric absorbers, concentric tube absorb-ers and horizontal and vertical tubular absorbers. In thedry absorber, the top section of which is shown in Fig. 145. the weak liquor enters at themiddle of the top header andis sprayed upon a spray pan,from which it drips downwardover the coils. The gas entersas shown, part being deliveredabove the spray plate, so as tocome into contact with thespray and the larger part beingtaken downward through thecentral pipe to a point near thebottom of the absorber, fromPig. 145. which point it flows upward against the descending weak liquor by which it is the gas is dissolved by the weak liquor the heat of ab-sorption is given off, and taken up by the cooling water inthe coils. The result is a strong liquor which collects inthe absorber ready to be delive
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectventila, bookyear1913
