The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 511
To … Fig. 347. — Temperature-entropy Diagram for a Four-stage Turbine: pi = 165 lb,abs., steam initially dry-saturated, Po = I lb. abs. It must be clearly understood that the GH lines in Fig. 347 are notlines of operation, or do not represent any operation within the turbine:each of them simply sets off…
Steam-engines · Steam-turbines
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