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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 /1073/CH5/EX5.4/5_4.sce | |
| 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 '1073/CH5/EX5.4/5_4.sce')
| -rwxr-xr-x | 1073/CH5/EX5.4/5_4.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/1073/CH5/EX5.4/5_4.sce b/1073/CH5/EX5.4/5_4.sce new file mode 100755 index 000000000..488b312d9 --- /dev/null +++ b/1073/CH5/EX5.4/5_4.sce @@ -0,0 +1,24 @@ +clc;
+clear;
+//Example 5.4
+mc_dot=1000 //[kg/h]
+mc_dot=mc_dot/3600 //[kg/s]
+mh_dot=250 //[kg/h]
+mh_dot=mh_dot/3600 //[kg/s]
+Cpc=4187 //[J/(kg.K)]
+Cph=3350 //[W/K]
+w=mc_dot*Cpc //[W/K]
+l=mh_dot*Cph //[W/K]
+C=mh_dot*Cph/(mc_dot*Cpc)
+U=1160 //[W/sq m.K]
+A=0.25 //Heat transfer surface for exchanger in [sq m]
+ntu=U*A/(mh_dot*Cph) //
+E=(1-%e^(-ntu*(1+C)))/(1+C) //Effectiveness of heat exchanger
+T1=393 //Inlet temperature in [K]
+t1=283 //Cooling water [K]
+T2=T1-E*(T1-t1) //Outlet T of hot liquid
+
+t2=C*(T1-T2)+t1 //[K]
+printf("\n\nEffectiveness of heat exchanger is %f\n",E);
+printf("\nOutlet temperature of hot liquid is %f\n",T2);
+printf("\nOutlet temperature of water is %f\n",t2)
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