. Applied thermodynamics for engineers. de by Allcut at the University of Birming-ham (Power, July 18, 1911, page 99) call attention to three characteristic processes : C + H20 = CO + H2, (A) C + 2 H2O = CO2 + 2 H2, (B) CO + H2O = CO2 + H2. (C) Of these, (A) takes place at temperatures above 1832°, is endothermic, andresults in the absorption of 4300 B. t. u. per pound of carbon. The correspondingfigure for reaction (B), also endothermic, which occurs at temperatures below 1112°,is 2820 B. t. u. The former of the two is the reaction desired, and is facilitatedby high temperatures. The operatio
. Applied thermodynamics for engineers. de by Allcut at the University of Birming-ham (Power, July 18, 1911, page 99) call attention to three characteristic processes : C + H20 = CO + H2, (A) C + 2 H2O = CO2 + 2 H2, (B) CO + H2O = CO2 + H2. (C) Of these, (A) takes place at temperatures above 1832°, is endothermic, andresults in the absorption of 4300 B. t. u. per pound of carbon. The correspondingfigure for reaction (B), also endothermic, which occurs at temperatures below 1112°,is 2820 B. t. u. The former of the two is the reaction desired, and is facilitatedby high temperatures. The operation (C) is chemically reversible; taking placeas stated at temperatures above 932°, but gradually reversing to the opposite (andpreferred) transformation when the temperature reaches 1832°. The tests show that increasing proportions of COo may be associated withincreasing proportions of steam introduced. The maximum decomposition reachedwas lb. of steam per pound of anthracite pea coal, at 1832° F. The maxi- THE GAS ENGINE 171. Fig. 116. Art. 287. —Single-acting Gas Engine, Four Cycle.(From The Gas Engine, by Cecil P. Poole, with the permission of the HUl Publishing Company.)
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