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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 /2705/CH10/EX10.5 | |
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initial commit / add all books
Diffstat (limited to '2705/CH10/EX10.5')
| -rwxr-xr-x | 2705/CH10/EX10.5/Ex10_5.sce | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/2705/CH10/EX10.5/Ex10_5.sce b/2705/CH10/EX10.5/Ex10_5.sce new file mode 100755 index 000000000..e7086049a --- /dev/null +++ b/2705/CH10/EX10.5/Ex10_5.sce @@ -0,0 +1,31 @@ +clear;
+clc;
+disp('Example 10.5');
+
+//aim : To determine
+// the flow rate of cooling water
+
+//Given values
+P=24;//pressure, [kN/m^2]
+ms_dot=1.8;//steam condense rate,[tonne/h]
+x=.98;//dryness fraction
+T1=21;//entrance temperature of cooling water,[C]
+T2=57;//outlet temperature of cooling water,[C]
+
+//solution
+//at 24 kN/m^2, for steam
+hfg=2616.8;//[kJ/kg]
+hf1=268.2;//[kJ/kg]
+//hence
+h1=hf1+x*(hfg-hf1);//[kJ/kg]
+
+//for cooling water
+hf3=238.6;//[kJ/kg]
+hf2=88.1;//[kJ/kg]
+
+//using equation [3]
+//ms_dot*(hf3-hf2)=mw_dot*(h1-hf1),so
+mw_dot=ms_dot*(h1-hf1)/(hf3-hf2);//[tonne/h]
+disp('tonne/h',mw_dot,'The flow rate of the cooling water is =')
+
+//End
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