258--Longitudinal Flow in Tube Bundles with Grid Baffles

doi:10.1615/hedhme.a.000258

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Oblate spheroids, free convective heat transfer from, Ocean Thermal Energy Conversion (OTEC), Octadecane: Octadecene: Octane: 1-Octanol: 1-Octene: Octafluorocyclobutane (Refrigerant C318) OEST, heat transfer medium, Oldroyd eight constant model, for non-Newtonian fluid, Olefins: Oliviera, S Olex, heat transfer medium, ONB (onset of nucleate boiling): Once-through cooling towers, Once-through multistage flash evaporators, (MSF-OT) One-equation models, for turbulent boundary layers, Open-circuit cooling towers, Operational envelope of a heat pipe, Operational problems: Opposed convection: Opto-microfluidics, Organic compounds, aqueous solutions of, as heat transfer media, Organic solids, density, Organic sulfur compounds: Organic vapours, dropwise condensation of, Orifices: Orifice baffles, in tube bundles with longitudinal flow,

Longitudinal Flow in Tube Bundles with Grid Baffles design considerations for, heat transfer with, pressure drop with,

Orrick and Erbar method for saturated liquid viscosity, Outer tube limit, in shell-and-tube heat exchangers, Outlet effects, in shell-and-tube heat exchangers, Overall heat transfer coefficient, Overall power hypothesis, for critical heat flux in flow boiling, Overcapacity, in condensers, Oxygen:

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Oblate spheroids, free convective heat transfer from, Ocean Thermal Energy Conversion (OTEC), Octadecane: Octadecene: Octane: 1-Octanol: 1-Octene: Octafluorocyclobutane (Refrigerant C318) OEST, heat transfer medium, Oldroyd eight constant model, for non-Newtonian fluid, Olefins: Oliviera, S Olex, heat transfer medium, ONB (onset of nucleate boiling): Once-through cooling towers, Once-through multistage flash evaporators, (MSF-OT) One-equation models, for turbulent boundary layers, Open-circuit cooling towers, Operational envelope of a heat pipe, Operational problems: Opposed convection: Opto-microfluidics, Organic compounds, aqueous solutions of, as heat transfer media, Organic solids, density, Organic sulfur compounds: Organic vapours, dropwise condensation of, Orifices: Orifice baffles, in tube bundles with longitudinal flow,

Longitudinal Flow in Tube Bundles with Grid Baffles design considerations for, heat transfer with, pressure drop with,

Orrick and Erbar method for saturated liquid viscosity, Outer tube limit, in shell-and-tube heat exchangers, Outlet effects, in shell-and-tube heat exchangers, Overall heat transfer coefficient, Overall power hypothesis, for critical heat flux in flow boiling, Overcapacity, in condensers, Oxygen:

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Longitudinal Flow in Tube Bundles with Grid Baffles

DOI 10.1615/hedhme.a.000258

3.3 SHELL-AND-TUBE HEAT EXCHANGER
3.3.12 Longitudinal Flow in Tube Bundles with Grid Baffles

Jerry Taborek

A. Characteristics of longitudinal flow

There are two fundamental modes of flow on the outside of tube bundles:

crossflow, perpendicular to the tubes;
longitudinal flow, parallel to the axis of the tubes.

Flow in shell-and-tube heat exchangers with cross baffles will have generally some components of both flow types. With segmental baffles crossflow is predominant but with multi-segmental baffles, longitudinal flow is a major component. A different type of baffle is discussed here, termed the “grid” or “rod” baffle, with which the shell operates essentially in longitudinal flow, interrupted only by a grid of rods or strips which support the tubes against sagging.

The main characteristics of longitudinal flow in tube bundles are summarized here as follows:

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