Mechanical laboratory methods; the testing of instruments and machines in the mechanical engineering laboratory and in practice (1922)
Smallwood, Julian Chase · New York, D. Van Nostrand company · leaf 364
are not precise, an idea may be formed of them by ananalysis of a representativediagram from a test. Fig. q .-f * 109 is such a one. Through JTTZl/k^ 2i, vertically over 2, ahorizontal should be drawnto represent atmosphericpressure. Through 2i anisothermal is drawn referredto a volume axis through… … Fig. 109.—Air Compressor Losses. 346 TESTING OF AIR MACHINERY 67 42 is laid off to represent the pressure in the delivery main.The ideal diagram is then 6i-2i-42-5i. The loss due to fluid friction at the valves and ports isrepresented by areas /, /. The los*s due to insufficient cooling by the…
Mechanical engineering
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