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 /1073/CH2/EX2.5 | |
| 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/CH2/EX2.5')
| -rwxr-xr-x | 1073/CH2/EX2.5/2_5.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/1073/CH2/EX2.5/2_5.sce b/1073/CH2/EX2.5/2_5.sce new file mode 100755 index 000000000..206d15307 --- /dev/null +++ b/1073/CH2/EX2.5/2_5.sce @@ -0,0 +1,29 @@ +clc;
+clear;
+//Example 2.5
+printf("Example 2.5\nPage 2.23")
+//Given
+A=1; //let [sq m]
+x1=0.23; //thickness of fir brick layer[m]
+x2=0.115; // [m]
+x3=0.23; //[m]
+T1=1213; //Temperature of furnace [K]
+T2=318; //Temperature of furnace [K]
+dT=T1-T2; //[K]
+k1=6.047; //W/(m.K) (fire brick)
+k2=0.581; //W/(m.K) (insulating brick)
+k3=2.33; //W/(m.K) (building brick)
+Q_by_A=dT/((x1/k1)+(x2/k2)+(x3/k3)) //Heat lost per unit Area in Watt
+
+R1=(x1/k1) //Thermal resistance
+R1=0.04 //Approximate
+R2=(x2/k2)
+R2=0.2025 //Approximate
+R3=(x3/k3)
+R3=0.1 //Approximate
+Ta=T1-((dT*R1)/(R1+R2+R3))
+Tb=((dT*R3)/(R1+R2+R3))+T2
+Tb=565 //Approximation
+printf("\nAnswer:Heat loss per unit area is %f W=%f J/s\n",Q_by_A,Q_by_A);
+printf("\nAnswer:\n Ta=%f K =Temperature at the interface between fire brick and insulating brick\n Tb=%d K Temperature at the interface between insulating and building brick\n",Ta,Tb)
+
|