clear ;
clc;
// Example 11.6
printf('Example 11.6\n\n');
printf('Page No. 320\n\n');

C = 10000;// Installation cost of the pump in Pound
S = 3500;// Saving in Pound per annum 
T = C/S;// in year
printf('The pay back time is %.0f year\n\n',T)

// This question further does not contain any calculation part in it.
printf('In a heat-pump system the work input to drive the compressor,W, produces a heat absorption capacity,Q2,\nand to balance the energy flow, a quantity of heat, Q1, must be dissipated.\nThus the energy equation is\n -> Q1 = W + Q2\nand the coeffient of performance is \nC.O.P. = Q1/W = Q1/(Q1 - Q2)\n   Consequently the C.O.P. is always greater than unity.\nThe maximum theoretical value of the C.O.P. is that predicted by the Carnot in chapter 2,namely :\n -> (C.O.P.)max = T1/(T1 - T2)')