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Diffstat (limited to '1244/CH10/EX10.2')
-rwxr-xr-x | 1244/CH10/EX10.2/Example102.sce | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/1244/CH10/EX10.2/Example102.sce b/1244/CH10/EX10.2/Example102.sce new file mode 100755 index 000000000..33f37a4db --- /dev/null +++ b/1244/CH10/EX10.2/Example102.sce @@ -0,0 +1,42 @@ +
+// Display mode
+mode(0);
+
+// Display warning for floating point exception
+ieee(1);
+
+clc;
+disp("Principles of Heat transfer, Seventh Edition, Frank Kreith, Raj M Manglik and Mark S Bohn, Chapter 10, Example 2")
+//density of saturated liquid in kg/m^3
+rho_l=962;
+//gravitational acceleration in m/s^2
+g=9.8;
+//latent heat of vaporization in J/kg
+h_fg=2250000;
+//density of saturated vapor in kg/m^3
+rho_v=0.60;
+//Surface temperature of polished stainless steel surface in degree celcius
+T_s=400;
+//Value of proportionality factor in British Gravitational system
+g_c=1;
+//Boiling point of water under at atmospheric pressure in degree celcius
+T_b=100;
+//surface tension of the liquid-to-vapor interface in N/m
+sigma=58.8e-3;
+//Excess temperature in degree Celcius
+delta_Tx= T_s-T_b;
+//Wavelength in m from eq. 10.7
+lamda=2*%pi*sqrt(g_c*sigma/(g*(rho_l-rho_v)));
+//Thermal conductivity in W/mK
+k_c=0.0249;
+//Absolute viscosity in Ns/m^2
+mu_c=12.1e-6;
+//Specific heat in J/kg K
+c_pc=2034;
+//Heat transfer coefficient due to conduction alone in W/m^2 K
+h_c=(0.59)*(((g*(rho_l-rho_v)*rho_v*(k_c^3)*(h_fg+(0.68*c_pc*delta_Tx)))/(lamda*mu_c*delta_Tx))^0.25); // expression obtained assuming diameter D tending to infinity
+//Emissivity
+epsilon_s= 0.05; //since surface is polished and hence heat transfer coefficient due to radiation is negligible
+disp("Heat flux in W/m^2")
+//Heat flux in W/m^2
+q= h_c*delta_Tx
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