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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /965/CH7/EX7.25 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '965/CH7/EX7.25')
| -rw-r--r-- | 965/CH7/EX7.25/25.sci | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/965/CH7/EX7.25/25.sci b/965/CH7/EX7.25/25.sci new file mode 100644 index 000000000..dc2b06a97 --- /dev/null +++ b/965/CH7/EX7.25/25.sci @@ -0,0 +1,21 @@ +clc;
+clear all;
+disp("Average velocity")
+R=0.12;// radius of circular tube
+ts=90;//degree C
+disp("u = 2.7*r-3.2*r^2")
+u=(2/R^2)*integrate('2.7*r-3.2*r^2','r',0,R);
+disp("m/s",u,"Average velocity =")
+disp("t=85*(1-2.2*r)")
+m=integrate('(2.7*r-3.2*r^2)*(85*(1-2.2*r)*r)','r',0,R);
+n=integrate('(2.7*r-3.2*r^2)*r','r',0,R);
+tb=m/n;
+disp("degree C",tb,"mean bulk temperature tb =")
+Q=1000;//kJ/h
+Q=Q*1000/3600;//J/s
+A=2*%pi*R*1;
+h=Q/(A*(ts-tb));
+disp("W/m^2.C",h,"Heat transfer coefficient, h =")
+
+
+
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