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authorprashantsinalkar2017-10-10 12:27:19 +0530
committerprashantsinalkar2017-10-10 12:27:19 +0530
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+// Example 4_6
+clc;funcprot(0);
+// Given data
+T_1=300;// °C
+T_2=700;// °C
+m=3;// kg
+
+// Calculation
+// (a)
+delH=m*integrate('(2.07+((T-400)/1480))','T',T_1,T_2);
+printf("\n(a)The enthalpy change,delH=%4.0f kJ",delH);
+// From steam tables
+h_1=3073;// kJ/kg
+h_2=3928;// kJ/kg
+delH=m*(h_2-h_1);// kJ/kg
+printf("\n Using the values from steam tables,the enthalpy change,delH=%4.0f kJ",delH);
+// (b)
+delT=T_2-T_1;// °C
+c_pav=(m*integrate('(2.07+((T-400)/1480))','T',T_1,T_2))/(m*delT);// kJ/kg.°C
+printf("\n(b)The average value of c_p=%1.2f kJ/kg.°C",c_pav);
+// Using the values from steam tables
+c_pav=(h_2-h_1)/delT;// kJ/kg.°C
+printf("\n Using the values from steam tables,the average value of c_p=%1.2f kJ/kg.°C",c_pav);