254--Calculations of Shell-Side Heat Transfer Coefficient and Pressure Drop

doi:10.1615/hedhme.a.000254

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Objectives and Background It's an article auxiliary calculations, calculation of shell-side heat transfer coefficient and pressure drop,

Calculations of Shell-Side Heat Transfer Coefficient and Pressure Drop It's an article

extension to other shell, baffle, and tube bundle geometries, flow stream analysis method for, ideal tube-bank correlations for, input data and recommended practices, objectives and background, performance evaluation when geometry specified, recommended method, principles and limitations, survey of shell-side flow correlations,

tube failure in, twisted tube type,

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Objectives and Background It's an article auxiliary calculations, calculation of shell-side heat transfer coefficient and pressure drop,

Calculations of Shell-Side Heat Transfer Coefficient and Pressure Drop It's an article

tube failure in, twisted tube type,

T U V W X Y Z

S Shell-and-tube heat exchanger: thermal design, calculation of shell-side heat transfer coefficient and pressure drop,

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Calculations of Shell-Side Heat Transfer Coefficient and Pressure Drop

DOI 10.1615/hedhme.a.000254

3.3.8 Calculation of shell-side heat transfer coefficient and pressure drop

J. Taborek

In this section we convert the ideal tube bank-based α_i and Δp_bi to the realistic flow conditions of a segmentally baffled exchanger.

A. Shell-side heat transfer coefficient, α_s

Based on the ideal tube bank-calculated coefficients α_i in Section 253, we determine now the actual shell-side coefficient α_s (W/m² K), using the correction factors for nonidealities of baffled flow as determined in Section 252.

\[\label{eq1} \alpha_{s} = \alpha_{i}\left(J_{c}, J_{i}, J_{b}, J_{r}, J_{s}\right) = \alpha_{i}\left(J_{\rm tot}\right)\tag{1}\]

where	J_c	=	the segmental baffle window correction, Equation 252.20 or Figure 252.7
	J_l	=	the baffle leakage correction factor, Equation 252.23 or Figure 252.9
	J_b	=	the bypass correction factor, tube bundle to shell, Equation 252.25 or Figure 252.10
	J_r	=	the laminar heat transfer correction factor for adverse temperature gradient, applicable for Re_s < 100 Equation 252.29 or Figure 252.12
	J_s	=	the nonequal inlet/outlet baffle spacing correction factor, applicable only if such differences exist; see Equation 252.36 or Figure 252.13.

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