diff options
Diffstat (limited to '2063/CH9/EX9.7/9_7.sce')
| -rwxr-xr-x | 2063/CH9/EX9.7/9_7.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/2063/CH9/EX9.7/9_7.sce b/2063/CH9/EX9.7/9_7.sce new file mode 100755 index 000000000..faa15d3c4 --- /dev/null +++ b/2063/CH9/EX9.7/9_7.sce @@ -0,0 +1,18 @@ +clc
+clear
+//Input data
+V1=0.07;//Displacement of the piston of a single stage single cylinder air compressor in m^3
+P1=1;//Initial pressure in bar
+T1=308;//Initial temperature of air in K
+P2=8.5;//Pressure after the compression process in bar
+r=1.4;//Isentropic compression
+
+//Calculations
+V2=V1*((P1/P2)^(1/1.4));//Final volume of the cylinder in m^3
+W1=P1*10^5*V1;//Work done by air during suction in Nm (or) J
+W2=(P1*10^5*V1*(1-(P2/P1)^((r-1)/r)))/(r-1);//Work done by air during compression in Nm or J
+Wa1=P2*10^5*V2;//Work done on air during delivery in Nm or J
+Wa2=((-W2)+Wa1-W1)/1000;//Net work done on air during the cycle in kJ
+
+//Output
+printf('(a)Work done by air during suction is %3.0f J\n (b)Work done on air during compression is %3.0f J\n (c)Work done on air during delivery is %3.0f J\n (d)Net work done on air during the cycle is %3.3f kJ',W1,W2,Wa1,Wa2)
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