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+clc
+clear
+printf("Example 6.2 | Page number 153 \n\n");
+//Part(a)Find the rate of heat transfer in the evaporator and the power input to the compressor.
+//Part(b)Calculate COP if refrigerator were to operate as heat pump
+
+//Given Data
+COP_ref = 4 //COP of refrigerator
+Q1 = 0.5 //kJ/s //rate of heat transfer at the condensor
+
+//Solution
+//Part(a)
+printf("Part(a)\n");
+Wc = Q1/(COP_ref+1) //kJ/s //Power input to compressor
+Q2 = COP_ref*Wc //kJ/s //Rate of heat transfer in evaporator
+printf("Rate of heat transfer in evaporator  = %.1f kJ/s\n",Q2)
+printf("Power input to compressor = %.1f kJ/s\n\n",Wc)
+
+//Part(b)
+printf("Part(b)\n");
+COP_hp = 1 + COP_ref //COP of heat pump
+printf("COP of heat pump = %.1f",COP_hp)