diff options
Diffstat (limited to '965/CH9/EX9.6')
| -rw-r--r-- | 965/CH9/EX9.6/6.sci | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/965/CH9/EX9.6/6.sci b/965/CH9/EX9.6/6.sci new file mode 100644 index 000000000..bfd1f4b3d --- /dev/null +++ b/965/CH9/EX9.6/6.sci @@ -0,0 +1,21 @@ +clc;
+clear all;
+disp("power dissipation/length")
+d=0.01;//m
+e=0.92;
+ts=260;// degree C
+rhol=958.4;// kg/m^3
+hfg=2257*10^3;//J/kg
+rhov=4.807;// k/m^3
+cpv=2.56*10^3;// J/kg.K
+k=0.0331;// W/m.K
+muv=14.85*10^(-6);// Ns/m^2
+mug=muv;;
+g=9.81;//m/s
+ta=100;// degree C
+te=ts-ta;// excess temperature
+hconv=0.65*(k^3*rhov*(rhol-rhov)*g*(hfg+0.4*cpv*te)/(muv*d*te))^0.25;
+hrad=5.67*10^(-8)*e*(ts^4-ta^4)/(ts-ta);
+h=hconv+3*hrad/4;
+Q=h*%pi*d*(ts-ta);//
+disp("W",Q,"power dissipation per unit length for the heater =")
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