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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/CH4/EX4.12/4_12.sce | |
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initial commit / add all books
Diffstat (limited to '1073/CH4/EX4.12/4_12.sce')
| -rwxr-xr-x | 1073/CH4/EX4.12/4_12.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/1073/CH4/EX4.12/4_12.sce b/1073/CH4/EX4.12/4_12.sce new file mode 100755 index 000000000..0f0667341 --- /dev/null +++ b/1073/CH4/EX4.12/4_12.sce @@ -0,0 +1,22 @@ +
+clc;
+clear;
+//Example 4.12
+sigma=5.67*10^-8 //[W/sq m.K^4]
+T1=77 //[K]
+T2=303 //[K]
+D1=32 //cm
+D1=D1/100 //[m]
+D2=36 //[cm]
+D2=D2/100 //[m]
+A1=%pi*D1^2 //[sq m]
+A2=%pi*D2^2 //[sq m]
+e1=0.03;
+e2=e1;
+Q=sigma*A1*(T1^4-T2^4)/(1/e1+(A1/A2)*(1/e2-1)) //[W]
+Q=Q*3600/1000 //[kJ/h]
+Q=abs(Q); //[kJ/h]
+lambda=201 //kJ/kg
+m_dot=Q/lambda //Evaporation rate in [kg/h]
+printf("\n Nitrogen evaporates at %f kg/h",m_dot);
+
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