diff options
| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /551/CH13/EX13.26 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '551/CH13/EX13.26')
| -rwxr-xr-x | 551/CH13/EX13.26/26.sce | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/551/CH13/EX13.26/26.sce b/551/CH13/EX13.26/26.sce new file mode 100755 index 000000000..bcf833d65 --- /dev/null +++ b/551/CH13/EX13.26/26.sce @@ -0,0 +1,66 @@ +clc
+p1=1; //bar
+T1=363; //K
+r=9;
+p3=68; //bar
+p4=68; //bar
+Q=1750; //kJ/kg
+y=1.4;
+cv=0.71;
+cp=1.0;
+
+disp("(i) Pressures and temperatures at salient points")
+p2=p1*(r)^y;
+disp("p2=")
+disp(p2)
+disp("bar")
+
+T2=T1*r^(y-1);
+disp("T2=")
+disp(T2)
+disp("K")
+
+disp("p3=")
+disp(p3)
+disp("bar")
+
+disp("p4=")
+disp(p4)
+disp("bar")
+
+T3=T2*(p3/p2);
+disp("T3=")
+disp(T3)
+disp("K")
+
+Q1=cv*(T3-T2); //heat added at constant volume
+Q2=Q-Q1; //heat added at constant pressure
+
+T4=Q2/cp+T3;
+disp("T4=")
+disp(T4)
+disp("K")
+
+rho=T4/T3; //V4/V3=T4/T3
+
+p5=p4*(rho/r)^y;
+disp("p5=")
+disp(p5)
+disp("bar")
+
+T5=T4*(rho/r)^(y-1);
+disp("T5=")
+disp(T5)
+disp("K")
+
+
+disp("(ii) Air standard efficiency =")
+Qr=cv*(T5-T1);
+n_airstandard=(Q-Qr)/Q;
+disp(n_airstandard)
+
+
+disp("(iii) Mean effective pressure =")
+pm=1/(r-1)*(p3*(rho-1) + (p4*rho-p5*r)/(y-1) - (p2-p1*r)/(y-1));
+disp(pm)
+disp("bar")
|