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Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)

Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 530

An illustration from Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .., 1913, leaf 530
ssure, and the absolute ter-minal pressure, and they can both be obtained from thediagram by measuring with the scale adapted to the springused. Thus, in Fig. 204 the absolute initial pressuremeasured from the line of perfect vacuum V to line B is77 pounds, and the absolute terminal pressure… … Fig. 204 Second. Find mean forward pressure. Rule. Multiply absolute initial pressure by the hyper-bolic logarithm of number of expansions plus 1, and divideproduct by number of expansions. Thus, referring to Table33, it will be seen that the hyperbolic logarithm of 3.65 is 77X2 2947 1.2947, to…

Steam engineering · Electrical engineering · Steam turbines

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