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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2870/CH11/EX11.1/Ex11_1.sce | |
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initial commit / add all books
Diffstat (limited to '2870/CH11/EX11.1/Ex11_1.sce')
| -rwxr-xr-x | 2870/CH11/EX11.1/Ex11_1.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/2870/CH11/EX11.1/Ex11_1.sce b/2870/CH11/EX11.1/Ex11_1.sce new file mode 100755 index 000000000..3d43e271a --- /dev/null +++ b/2870/CH11/EX11.1/Ex11_1.sce @@ -0,0 +1,26 @@ +clc;clear;
+//Example 11.1
+
+//given values
+P1=0.14;
+P2=0.8;
+m=0.05;
+
+//from refrigerant-134a tables
+h1=239.16;
+s1=0.94456;
+h2=275.39;
+h3=95.47;
+
+//calculation
+s2=s1;//isentropic process
+h4=h3;//throttling
+QL=(h1-h4)*m;
+Wm=m*(h2-h1);
+Qh=m*(h2-h3);
+Qh=ceil(Qh);
+COPR=QL/Wm;
+disp(QL,'the rate of heat removal from the refrigerated space in kW');
+disp(Wm,'the power input to the compressor in kW');
+disp(Qh,'the rate of heat rejection to the environment in kW');
+disp(COPR,'the COP of the refrigerator');
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