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Diffstat (limited to '3843/CH6/EX6.3')
| -rw-r--r-- | 3843/CH6/EX6.3/Ex6_3.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3843/CH6/EX6.3/Ex6_3.sce b/3843/CH6/EX6.3/Ex6_3.sce new file mode 100644 index 000000000..52fb49911 --- /dev/null +++ b/3843/CH6/EX6.3/Ex6_3.sce @@ -0,0 +1,20 @@ +// Example 6_3
+clc;funcprot(0);
+// Given data
+T_1=20;// °C
+P_1=200;// kPa
+W=720;// kJ
+V_1=2;// m^3
+R=0.287;// kJ/kg.K
+c_v=0.717;// kJ/kg.K
+
+// Calculation
+m=(P_1*V_1)/(R*(T_1+273));// The mass in kg
+u_1=209.1;// kJ/kg
+u_2=-(W/m)+u_1;// kJ/kg
+T_2=501.2;// K
+phi_2=2.222;// The relative humidity at state 2
+phi_1=1.678;// The relative humidity at state 1
+P_2=P_1*(T_2/(T_1+273));// kPa
+delS=m*(phi_2-phi_1-(R*log(P_2/P_1)));// kJ/K
+printf("\nThe entropy change,delS=%1.3f kJ/K",delS);
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