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Diffstat (limited to '914/CH11/EX11.8/ex11_8.sce')
| -rwxr-xr-x | 914/CH11/EX11.8/ex11_8.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/914/CH11/EX11.8/ex11_8.sce b/914/CH11/EX11.8/ex11_8.sce new file mode 100755 index 000000000..9d6218535 --- /dev/null +++ b/914/CH11/EX11.8/ex11_8.sce @@ -0,0 +1,23 @@ +clc;
+warning("off");
+printf("\n\n example11.8 - pg537");
+// given
+L=30; //[ft] - length
+Ai=0.1623*L;
+di=0.620; //[inch] - internal diameter
+d0=0.750; //[inch] - outer diameter
+Ao=0.1963*L; //[ft^2/ft]
+wc=12*(471.3/0.9425);
+cp=1; //[Btu/lbm*degF] - heat capacity of water
+deltaH_coldwater=3.6*10^5;
+deltaH_vapourization=1179.7-269.59;
+wh=deltaH_coldwater/deltaH_vapourization;
+hi=80; //[Btu/h*ft^2*degF]
+ho=500; //[Btu/h*ft^2*degF]
+km=26; //[Btu/h*ft*degF]
+Ui=1/((1/hi)+(((Ai/L)*log(d0/di))/(2*%pi*km))+(Ai/(Ao*ho)));
+deltaT1=300-50;
+deltaT=deltaT1/(exp((Ui*Ai)/(wc*cp)));
+Tsat=300;
+Tc2=Tsat-deltaT;
+printf("\n\n Therefore, the outlet temperature of the cold fluid is \n Tc2 = %f degF",Tc2);
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