From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 1073/CH3/EX3.42/3_42.sce | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100755 1073/CH3/EX3.42/3_42.sce (limited to '1073/CH3/EX3.42') diff --git a/1073/CH3/EX3.42/3_42.sce b/1073/CH3/EX3.42/3_42.sce new file mode 100755 index 000000000..f1f30d295 --- /dev/null +++ b/1073/CH3/EX3.42/3_42.sce @@ -0,0 +1,25 @@ +clc; +clear; +//Example 3.42 +Ts=373 //[K] +rho_l=957.9 //rho*l[kg/m^3] +Cpl=4217 //[J/kg.K] +mu_l=27.9*10^-5 //[kg/(m.s)] +rho_v=0.5955 //[kg/m^3] +Csf=0.013 +sigma=5.89*10^-2 //[N/m] +Nprl=1.76 +lambda=2257 //[kJ/kg] +lambda=lambda*1000 //in [J/kg] +n=1 //for water +m_dot=30 //Mass flow rate [kg/h] +m_dot=m_dot/3600 //[kg/s] +D=30 //Diameter of pan [cm] +D=D/100 //[m] +g=9.81 //[m/s^2] +A=%pi*(D/2)^2 //Area in [sq m] +Q_by_A=m_dot*lambda/A //[W/sq m] +//For nucleate boiling point we have: +dT=(lambda/Cpl)*Csf*(((Q_by_A)/(mu_l*lambda))*sqrt(sigma/(g*(rho_l-rho_v))))^(1.0/3.0)*(Nprl^n) //[K] +Tw=Ts+dT //[K] +printf("\n Temperature of the bottom surface of the pan is %f W/(sq m)",Tw); -- cgit