Film Coefficients with Fluids Outside Tubes Forced Convection

Film coefficients for turbulent flow that exist on the outside or shell-side of the conventional baffled shell and tube exchanger are correlated for hydrocarbons, organic compounds, water, aqueous solution and gases by [5,70]:

$hoDeka=0.36(DeGsμ)0.55(cμka)1/3(μμw)0.14$

(15-188)

and as represented in Figure 15-84 (S.I. units), deviation: 0 to +20%. The Gs is correlated for both cross and parallel flow through the bundle by using the hydraulic radius along the tubes only [70]. Figure 15-85 is helpful in visualizing shell-side fluid flow.

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