?Hot nitrogen gas at 750(°F) and atmospheric pressure flows into a waste-heat boiler at
Chapter 6, Problem 6.78(choose chapter or problem)
Hot nitrogen gas at 750(°F) and atmospheric pressure flows into a waste-heat boiler at the rate of \(40(lb_{m})s^{−1}\), and transfers heat to water boiling at 1(atm). The water feed to the boiler is saturated liquid at 1(atm), and it leaves the boiler as superheated steam at 1(atm) and 300(˚F). If the nitrogen is cooled to 325(˚F) and if heat is lost to the surroundings at a rate of 60(Btu) for each (lbm) of steam generated, what is the steam-generation rate? If the surroundings are at 70(°F), what is \(\dot S_{G}\) for the process? Assume nitrogen to be an ideal gas for which \(C_{P} = (7/2)R\).
Text Transcription:
40(lb_m)s^−1
dot S_G
C_P = (7/2)R
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