Martin, Louis Adolphe, 1880- · New York : Wiley · leaf 280
am section of the pipe and the subscripts 2 thestate at the throat, then the fundamental equation is 2g vdp = (pivi — P2V2) p., in — I ■■ pm I - h- w—i [ \p\ where m is the exponent of the equation for reversibleadiabatic change of state which is assumed to occur betweenI and 2, so that p2 \Vlj… … W=A, For air ^=^=1.40 and vi may be computed frompiVi^RTi by means of the temperature of the air takenin the up-stream section of the pipe. For steam the value of W may be computed more readily and more accurately from the fundamental equations and the steam tables or diagrams than by means of the…
Mechanics
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