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Diffstat (limited to '534/CH10/EX10.1/10_1_Boiling_Water_pan.sce')
-rw-r--r-- | 534/CH10/EX10.1/10_1_Boiling_Water_pan.sce | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/534/CH10/EX10.1/10_1_Boiling_Water_pan.sce b/534/CH10/EX10.1/10_1_Boiling_Water_pan.sce new file mode 100644 index 000000000..93db94d87 --- /dev/null +++ b/534/CH10/EX10.1/10_1_Boiling_Water_pan.sce @@ -0,0 +1,35 @@ +clear;
+clc;
+printf('FUNDAMENTALS OF HEAT AND MASS TRANSFER \n Incropera / Dewitt / Bergman / Lavine \n EXAMPLE 10.1 Page 632 \n'); //Example 10.1
+// Power Required by electruc heater to cause boiling
+// Rate of water evaporation due to boiling
+// Critical Heat flux corresponding to the burnout point
+
+//Operating Conditions
+Ts = 118+273 ;//[K] Surface Temperature
+Tsat = 100+273 ;//[K] Saturated Temperature
+D = .3 ;//[m] Diameter of pan
+g = 9.81 ;//[m^2/s] gravitaional constant
+//Table A.6 Saturated water Liquid Properties T = 373 K
+rhol = 957.9 ;//[kg/m^3] Density
+cp = 4.217*10^3 ;//[J/kg] Specific Heat
+u = 279*10^-6 ;//[N.s/m^2] Viscosity
+Pr = 1.76 ;// Prandtl Number
+hfg = 2257*10^3 ;//[J/kg] Specific Heat
+si = 58.9*10^-3 ;//[N/m]
+//Table A.6 Saturated water Vapor Properties T = 373 K
+rhov = .5956 ;//[kg/m^3] Density
+
+Te = Ts-Tsat;
+//From Table 10.1
+C = .0128;
+n = 1;
+q = u*hfg*[g*(rhol-rhov)/si]^.5*(cp*Te/(C*hfg*Pr^n))^3;
+qs = q*%pi*D^2/4;
+
+m = qs/hfg;
+
+qmax = .149*hfg*rhov*[si*g*(rhol-rhov)/rhov^2]^.25;
+
+printf("\n Boiling Heat transfer rate = %.1f kW \n Rate of water evaporation due to boiling = %i kg/h \n Critical Heat flux corresponding to the burnout point = %.2f MW/m^2",qs/1000,m*3600,qmax/10^6);
+//END
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