. The steam-engine and other heat-motors . 120 ?100 - 80 - 604020 L. P. CYL. 0 r2o 15 10 h 5 - 5L 10 Standard Engine Tests Fig. 164. scale of pressures) the pressures as determined by the length of thecorresponding ordinates in the single card. To the same scale of volumes lay off the volume of the high-pressure cylinder and its clearance from the clearance line or lineof zero volume. As before, after laying off its clearance, dividethe remainder into any number of parts and divide the length ofthe high-pressure card into the same number of parts. Convertthe ordinates of the high-pressure card
. The steam-engine and other heat-motors . 120 ?100 - 80 - 604020 L. P. CYL. 0 r2o 15 10 h 5 - 5L 10 Standard Engine Tests Fig. 164. scale of pressures) the pressures as determined by the length of thecorresponding ordinates in the single card. To the same scale of volumes lay off the volume of the high-pressure cylinder and its clearance from the clearance line or lineof zero volume. As before, after laying off its clearance, dividethe remainder into any number of parts and divide the length ofthe high-pressure card into the same number of parts. Convertthe ordinates of the high-pressure card into pressures and lay offthese pressures (to the chosen scale for the low-pressure card) inthe combined diagram. Practical Diagrams.—In the formation of the theoretical dia-grams just described many assumptions were made that areimpossible of attainment in practice. There is— 320 THE STEAM-ENGINE AND OTHER HEAT-MOTORS. 1. The loss due to drop of pressure between the steam-boiler and the piston. This includes loss in the pipe, bends,valves, and separators. It varies
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