Navigation by alphabet

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Ideal gas: Ilexan, heat transfer medium, Illingworth, A, Imbedded fins, Immersed bodies: Immersed tubes, in fluidized beds, heat transfer to, Immiscible liquids, condensation of vapors producing Impairment of heat transfer in combined free and forced convection in a vertical pipe, Imperfectly diffuse surfaces: Impingement damage in heat exchangers, Impingement plate: Impingement protection, in shell-and-tube heat exchangers, Impinging jets: Implicit equations, solution of Inclined enclosures, free convective heat transfer in, Inclined flow, effect of on heat transfer to cylinders, Inclined pipes:
flow regimes in gas-liquid flow in, free convection heat transfer on outside, heat transfer in boiling in,
Conective Boiling Inside Horizontal Tubes
pneumatic conveying (solid/gas flow) in,
Inclined surfaces, free convective heat transfer from, Inconel, spectral characteristics of reflectance from oxidized surface of, Induced flow instabilities, in augmentation of heat transfer, Injection: Inlet effects in shell-and-tube heat exchangers, In-line tube banks: Inorganic compounds, solutions of, as heat transfer media, Inorganic substances: Instability, parallel channel, in condensers, Insulators, thermal conductivity of, Integral condensation: Integral finned tubes: Interaction coefficients in heat exchangers, Interaction parameters for binary systems, tables, Interfacial friction, in three-phase (liquid-liquid-gas) stratified flows, Interfacial resistance, in condensation, Interfacial roughness, relationships for, in annular gas-liquid flow, Interfacial shear stress, effect on filmwise condensation, on vertical surface, Intergrannular corrosion, of Intermating troughs, as corrugation design in plate heat exchangers, Intermittent flows: Internal heat sources, temperature distribution in bodies with, Internal heat transfer coefficient, use in transient conduction calculations, Internal reboilers (in distillation columns), characteristics advantages and disadvantages of, Internally finned tubes: International codes for pressure vessels, Interpenetrating continua (as representation of heat exchangers): Intertube velocity, in tube banks, Inviscid flow, compressible, with heat addition, Iodine: Iodobenzene: Iodoethane: Iodomethane: ISO codes for mechanical design of heat exchangers, Isobutane: Isobutanol: Isobutylamine: Isobutylformate: Isobutyric acid: Isoparaffins: Isopentane: Isopentanol: Isopropanol: Isopropylacetate: Isopropylamine: Isopropylbenzene: Isopropylcyclohexane: Isothermal flow, compressible, in ducts, Isothermal gas, radiation heat transfer to walls from, Isotropic materials, elastic properties, Isotropic scattering, Italy, guide to national practice for heat exchanger mechanical design,

Index

HEDH
A B C D E F G H I
Ideal gas: Ilexan, heat transfer medium, Illingworth, A, Imbedded fins, Immersed bodies: Immersed tubes, in fluidized beds, heat transfer to, Immiscible liquids, condensation of vapors producing Impairment of heat transfer in combined free and forced convection in a vertical pipe, Imperfectly diffuse surfaces: Impingement damage in heat exchangers, Impingement plate: Impingement protection, in shell-and-tube heat exchangers, Impinging jets: Implicit equations, solution of Inclined enclosures, free convective heat transfer in, Inclined flow, effect of on heat transfer to cylinders, Inclined pipes:
flow regimes in gas-liquid flow in, free convection heat transfer on outside, heat transfer in boiling in,
Conective Boiling Inside Horizontal Tubes
pneumatic conveying (solid/gas flow) in,
Inclined surfaces, free convective heat transfer from, Inconel, spectral characteristics of reflectance from oxidized surface of, Induced flow instabilities, in augmentation of heat transfer, Injection: Inlet effects in shell-and-tube heat exchangers, In-line tube banks: Inorganic compounds, solutions of, as heat transfer media, Inorganic substances: Instability, parallel channel, in condensers, Insulators, thermal conductivity of, Integral condensation: Integral finned tubes: Interaction coefficients in heat exchangers, Interaction parameters for binary systems, tables, Interfacial friction, in three-phase (liquid-liquid-gas) stratified flows, Interfacial resistance, in condensation, Interfacial roughness, relationships for, in annular gas-liquid flow, Interfacial shear stress, effect on filmwise condensation, on vertical surface, Intergrannular corrosion, of Intermating troughs, as corrugation design in plate heat exchangers, Intermittent flows: Internal heat sources, temperature distribution in bodies with, Internal heat transfer coefficient, use in transient conduction calculations, Internal reboilers (in distillation columns), characteristics advantages and disadvantages of, Internally finned tubes: International codes for pressure vessels, Interpenetrating continua (as representation of heat exchangers): Intertube velocity, in tube banks, Inviscid flow, compressible, with heat addition, Iodine: Iodobenzene: Iodoethane: Iodomethane: ISO codes for mechanical design of heat exchangers, Isobutane: Isobutanol: Isobutylamine: Isobutylformate: Isobutyric acid: Isoparaffins: Isopentane: Isopentanol: Isopropanol: Isopropylacetate: Isopropylamine: Isopropylbenzene: Isopropylcyclohexane: Isothermal flow, compressible, in ducts, Isothermal gas, radiation heat transfer to walls from, Isotropic materials, elastic properties, Isotropic scattering, Italy, guide to national practice for heat exchanger mechanical design,
J K L M N O P Q R S T U V W X Y Z
I Inclined pipes: heat transfer in boiling in,
Download the citation in the EndNote formatOpen in a new tab. Download the citation in the RefWorks formatOpen in a new tab. Download the citation in the BibTex formatOpen in a new tab.

Conective Boiling Inside Horizontal Tubes

DOI 10.1615/hedhme.a.000194

2.7 BOILING AND EVAPORATION
2.7.4 Convective boiling inside straight horizontal and inclined tubes, tubes with bends and helically coiled tubes

J. G. Collier and G. F. Hewitt

Horizontal tubes are often used in waste heat boilers, refrigerant evaporators, and a number of other types of heat exchange equipment. For the sake of compactness, the horizontal sections are often relatively short in length and connected by return bends to form so-called serpentines; alternatively, the tube may be formed into a helical coil. It is therefore convenient to consider the influence of bends and coils on heat transfer rates in this section.

A common feature of flows in non-vertical rubes is that of departure from axial symmetry in both flow and heat transfer. However, the nature and magnitude of the effects arising from this departure from symmetry vary with flow rate and with the type of geometry. In what follows, we will deal in turn with horizontal tubes (Section A), inclined tubes (Section B), tubes with bends (Section C) and, finally, helical coils (Section D).

A. Horizontal tubes

Heat transfer rates in horizontal tubes differ from those in vertical tubes to the extent that the gravitational forces cause an asymmetric flow pattern. A useful review has been given by Butterworth and Robertson (1977). Because the differences in behavior from that in a vertical tube are associated directly with the occurrence of dry portions of the tube perimeter, we shall consider this aspect first.

(a) Flow patterns and heat transfer

... You need a subscriptionOpen in a new tab. to view the full text of the article. If you already have the subscription, please login here

© 2024 by Begell House, Inc.