diff options
Diffstat (limited to '965/CH7/EX7.51')
| -rw-r--r-- | 965/CH7/EX7.51/51.sci | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/965/CH7/EX7.51/51.sci b/965/CH7/EX7.51/51.sci new file mode 100644 index 000000000..47a3a03e4 --- /dev/null +++ b/965/CH7/EX7.51/51.sci @@ -0,0 +1,20 @@ +clc;
+clear all;
+disp("average heat transfer coefficient")
+d=22.5/1000;// m diameter of tubes
+L=5;//m length of each tube
+ti=21;//degree C
+to=29;// degree C
+tb=(ti+to)/2;// bulk temperature
+rho=996.65;// kg/m^3
+mu=0.862*10^(-3);// kg/m.s
+k=0.6079;// W/m.C
+cp=4178;// J/kg.K
+Pr=mu*cp/k;
+n=200;// number of tubes
+m=160/n;// kg/s mass flow rate per tube
+Re=4*m/(%pi*d*mu);
+Nu=0.023*Re^0.8*Pr^0.4;// mcAdams correlation
+h=Nu*k/d;
+disp("W/m^2.C",h,"Average heat transfer coefficient =")
+
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