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+clear;

+clc;

+printf("\t\t\tProblem Number 3.13\n\n\n");

+// Chapter 3 : The First Law Of Thermodynamics

+// Problem 3.13 (page no. 113) 

+// Solution

+

+p1=150; //Unit:psia //Initial pressure

+T1=1000; //Unit:R //Temperature at pressure p1

+p2=15; //Unit:psia //Final pressure

+T2=600; //Unit:R //Temperature at pressure p2

+Cp=0.24; //Unit:Btu/(LBm*R) //Specific heat for constant pressure process

+v1=2.47; //Unit:ft^3/LBm //Specific volume at inlet conditions

+v2=14.8; //Unit:ft^3/LBm //Specific volume at outlet conditions

+

+//For a non-flow,constant pressure process

+//w/J=deltah=h2-h1=Cp(T2-T1) //deltah=change in enthalpy

+//W=w/J

+W=Cp*(T1-T2); //W=Work output //Unit:Btu/LBm

+printf("The work output of the turbine per pound of working fluid is %f Btu/LBm",W);