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//scilab 5.4.1
clear;
clc;
printf("\t\t\tProblem Number 4.2\n\n\n");
// Chapter 4 : The Second Law Of Thermodynamics
// Problem 4.2 (page no. 149)
// Solution
//given data
Qin=100; //heat added to the cycle
printf("In problem 4.1,\n")
//given data
t1=1000; //(unit:fahrenheit) //Source temperature
t2=80; //(unit:fahrenheit) //Sink temperature
//solution
//converting temperatures to absolute temperatures;
T1=t1+460; //Source temperature //Unit:R
T2=t2+460; //Sink temperature //Unit:R
printf("Solution for (a)\n");
printf("Efficiency of the engine is %f percentage\n\n",((T1-T2)/T1)*100);
printf("Now in problem 4.2,\n")
W=0.63*Qin; //W=W/J; //Efficiency in problem 4.1
W=Qin*(W/Qin); //amount of work
Qr=Qin-W; //Qin-Qr=W/J //Qr=heat rejected by the cycle
printf("The heat removed from the reservoir %f units",Qr);
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