M5.07 Forced Convection Through Annulus

Module 5.07 - Calculation of Heat Transfer Through an Annulus

Density, ρ = 61.55 lb/ft³

Viscosity, μ = 1.24 lb/(ft·hr)

Viscosity, μ_w = 1.41 lb/(ft·hr)

Thermal Conductivity, k = 0.375 BTU/(hr·ft·°F)

Heat Capacity, C = 1.00 BTU/(lb·°F)

Tube Length, L = 10.00 ft

Bulk Temperature, T_b = 130.0 °F

Tube Wall Temperature, t_w = 116.0 °F

Inside Diameter of Outer Tube, D_i = 1.83 in

Outside Diameter of Inner Tube, d_o = 1.50 in

Mass Flow Rate, W_o = 6666.70 lb/hr

ΔT = 14.0 °F

Equivalent Diameter, d_e = 0.06 ft

Area = 0.01 ft²

Velocity = 17833.78 ft/hr

Reynold number, Re = 54763

Prandtl Number, Pr = 3.30

Grashof Number, Gr = 4.32e+12

Case 2

Nusselt number, Nu = 201.03

Outside film coefficient, h_o = 1218.60 BTU/(hr·hr·ft²·°F)