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+//scilab 5.4.1

+clear;

+clc;

+printf("\t\t\tProblem Number 9.11\n\n\n");

+// Chapter 9 : Gas Power Cycles

+// Problem 9.11  (page no. 470) 

+// Solution

+

+//six cylinder engine,with displacement 3.3L

+//Using the results of problem 9.5,

+hp=230; //Horsepower //Unit:hp

+//3.3L*1000 cm^3/L*(in/2.54 cm)^3

+LA=3.3*1000*(1/2.54)^3; //mean //in^3

+N=5500/2; //Power strokes per minute //2L engine //Unit:rpm

+//hp=(pm*LA*N)/33000;

+pm=(hp*33000*12)/(LA*N); //1ft=12inch //The mean effective pressure //psia

+printf("The mean effective pressure is %f psia",pm);