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+clc;

+//Example 32.5

+//page no 512

+printf("Example 32.5 page no 512\n\n");

+// a fluid is transported 4 miles under turbulent flow conditions

+//we have two choices in designing the system

+OC_a=20000//per year pressure drop costs for the 2 inch ID pipe,$

+CRF=0.1//capital recovery factor for both pipe

+OC_b=OC_a/16//operating cost associated with the pressure drop cost per year for 4 inch pipe

+d=4*5280//distance,feet

+c_a=1// 2 inch ID pipe cost per feet,$

+c_b=6// 4 inch ID pipe cost per feet,$

+CC_a=d*c_a*CRF//capital cost for  2 inch ID pipe,$

+CC_b=d*c_b*CRF//capital cost for 4 inch ID pipe,$

+TC_a= OC_a +CC_a//total cost associated with 2 inch pipe

+printf("\n total cost with 2 inch pipe TC_a=%f $",TC_a);

+TC_b=OC_b + CC_b//total cost associated with 4 inch pipe

+printf("\n total cost with 4 inch pipe TC_b=%f $",TC_b);

+//from result we can conclude that 4 inch pipe is more economical