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Fundamentals of Engineering Thermodynamics_下.pdf

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Fundamentals of Engineering Thermodynamics_下.pdf

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文档介绍::52:47AMuser-s146/Users/user-s146/Desktop/Merry_X-Mas/:ΔEngineeringModel:##,Qcv50,Wcv50,==1bar43p3=,=610KT2=860Kp1=10barp2=:(a)bustiongasescanbefoundbyreducingthemassandenergyratebal-ancesforthecontrolvolumeatsteadystatetoobtain###V22V2#V22V205Q2W1mc1h2h21a12b1g1z2z2d1mc1h2h21a34b1g1z2z2dcvcv1221234234#,leaving##121205mh12h21mh32h4#Dividingbymandsolvingforh4h45h31h12h2FromTableA-22,,,.-22givesT45778K(5058C).(b),-22##12312124mef22ef15mh22h12T0s22s1#?KkJ1MW514,103``/12/106:52:49AMuser-s146/Users/user-s146/Desktop/Merry_X-Mas/New384Chapter7ExergyAnalysis➋Astheairflowsfrom1to2,,bustiongasis##,934``,itstemperaturedecreasesrelativetoT0andtheflowexergydecreases.➌(c)Therateofexergydestructionwithinthecontrolvolumecanbedeterminedfromanexergyratebalance,,0##0###aT0b121205a12Qj2Wcv1mef12ef21mef32ef42EdjTj#SolvingforEdandinsertingknownvalues###1212Ed5mef12ef21mef32ef4➍,presse