Calculation of the individual heat transfer coefficient


Forced convection, laminar flow

The following equation is valid for laminar flow conditions (Sieder & Tate):
Sieder & Tate            where
α = individual heat transfer coefficient [W/m2·K]
dh = hydraulic diameter [m] = 4·A/s
A = cross-sectional area [m2]
s = wetted perimeter [m]
λ = thermal conductivity [W/m·K]
μb = dynamic bulk viscosity [Pas]
μw = dynamic wall viscosity [Pas]
L = tube length [m]
Re = Reynolds number [ - ]
Pr = Prandtl number [ - ]
The equation is valid for: Validity of Sieder & Tate

A large number of other equations are available in literature, for different fluids, flow conditions and geometries.


Back to heat transfer main page
Dimensionless numbers and equations
Forced convection, turbulent flow
Typical Nu - Pr - Re relationship
 

Copyright © 2017 Rheoheat