Finned flat tubes, surface 9.68-0.87-R
Procedure Compact_HX_ND('ff_tubes_s968-087-R', Re: f,j_H) is a non-dimensional procedure that returns the friction factor and the Colburn j factor for external flow through finned flat tubes with surface 9.68-0.87-R given the Reynolds number. The values calculated are based on a best fit curve to experimental data. These data are from Kays and London (1984) p. 272.
Related procedures include:
Geometry-(more info)
CHX_geom_finned_tube('ff_tubes_s968-087-R': D_o, fin_pitch, D_h, fin_thk, sigma, alpha, A_fin\A)
Coefficient of heat transfer-(more info)
CHX_h_finned_tube('ff_tubes_s968-087-R', m_dot, A_fr, Fluid$,T, P:h)
Pressure drop-(more info)
CHX_DELTAp_finned_tube('ff_tubes_s968-087-R', m_dot, A_fr, L, Fluid$, T_i, T_o, P: DELTAp)
Additional Information
Fin pitch = 381 per m
D_h = 3.597e-3
Fin metal (copper) thickness = 0.102e-3 m
sigma=0.697
Heat transfer area/total volume (alpha) =751 m^2/m^3
Fin area/total area = 0.795