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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/EX7.16 | |
| 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/EX7.16')
| -rw-r--r-- | 965/CH7/EX7.16/16.sci | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/965/CH7/EX7.16/16.sci b/965/CH7/EX7.16/16.sci new file mode 100644 index 000000000..c7b95a2fb --- /dev/null +++ b/965/CH7/EX7.16/16.sci @@ -0,0 +1,29 @@ +clc;
+clear all;
+disp("Rate of cooling")
+
+A=1;//m^2
+T=20;// degree C
+Ts=90;// degree C
+U=2;//m/s velocity of air
+rhog=2500;// kg/m^3 density of glass
+mu=19.8*10^(-6);// N.s/m^2 viscosity
+L=1;//m length
+k=0.0286;//W/m.C
+cpa=1008;//J/kg.K
+rhoa=1.076;// kg/m^3 density of air
+
+Re=rhoa*U*L/mu;
+Pr=mu*cpa/k;
+
+Nu=0.664*Re^0.5*Pr^(1/3);
+h=Nu*k/L;
+disp("W/m^2.C",h,"Heat transfer coefficient =")
+Q=2*h*A*(Ts-T);
+disp("W",Q,"Heat transfer rate =")
+t=3/1000;// thickness
+m=rhog*A*t;// mass of glass
+cp=670;//J/kg.K
+delT=Q/(m*cp);
+disp("degree C/s",delT,"Initial heating rate =")
+
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