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 --- 2510/CH9/EX9.10/Ex9_10.sce | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100755 2510/CH9/EX9.10/Ex9_10.sce (limited to '2510/CH9/EX9.10') diff --git a/2510/CH9/EX9.10/Ex9_10.sce b/2510/CH9/EX9.10/Ex9_10.sce new file mode 100755 index 000000000..07324c8e2 --- /dev/null +++ b/2510/CH9/EX9.10/Ex9_10.sce @@ -0,0 +1,19 @@ +//Variable declaration: +D = 0.902/12.0 //Inside diameter of tube (ft) +T_in = 60.0 //Temperature water entering the tube (°F) +T_out = 70.0 //Temperature water leaving the tube (°F) +V = 7.0 //Average wave velocity water (ft/s) +p = 62.3 //Density of water (lb/ft^3) +mu = 2.51/3600.0 //Dynamic viscosity of water (lb/ft.s) +Cp = 1.0 //Viscosity of centipoise (Btu/lb.°F) +k = 0.34 //Thermal conductivity of water (Btu/h.ft.°F) + +//Calculation: +Re = D*V*p/mu //Reynolds Number +Pr = Cp*mu/k*3600 //Prandtl number +//From equation 9.26: +Nu = 0.023*(Re**0.8)*(Pr**0.4) //Nusselt number +h = (k/D)*Nu //Average film heat transfer coefficient (Btu/h.ft^2.°F) + +//Result: +printf("The required average film heat transfer coefficient is : %.0f Btu/h.ft^2.°F.",h) -- cgit