Pressure drop data measured during adiabatic two-phase flow in a plate-and-frame heat exchanger (PHE) are normalized with respect to the single-phase liquid pressure drop to give two-phase multipliers. A curve-fitted equation defines this relationship, which is a strong function of the Lockhart-Martinelli parameter. C coefficients are shown to be strong functions of both the Lockhart-Martinelli parameter and liquid viscosity, making this correlation unsuited to predictions of pressure drop in PHEs. Interfacial structure, observed during air-water downflow in replica channels (dC = 3 mm), is categorized into five flow patterns. These have a number of similarities with structures reported for circular and rectangular channels of similarly low hydraulic diameter. The transition boundaries between the patterns are shown to be a function of the chevron angle.
%0 Journal Article
%1 tribbe2001part2
%A Tribbe, C.
%A Müller-Steinhagen, H. M.
%D 2001
%J Heat Transfer Engineering
%K 2001 analysis plate-heat-exchanger pressure-drop two-phase
%N 1
%P 12-21
%R 10.1080/01457630150215686
%T Gas/Liquid Flow in Plate-and-Frame Heat Exchangers - Part II: Two-Phase Multiplier and Flow Pattern Analysis
%U http://dx.doi.org/10.1080/01457630150215686
%V 22
%X Pressure drop data measured during adiabatic two-phase flow in a plate-and-frame heat exchanger (PHE) are normalized with respect to the single-phase liquid pressure drop to give two-phase multipliers. A curve-fitted equation defines this relationship, which is a strong function of the Lockhart-Martinelli parameter. C coefficients are shown to be strong functions of both the Lockhart-Martinelli parameter and liquid viscosity, making this correlation unsuited to predictions of pressure drop in PHEs. Interfacial structure, observed during air-water downflow in replica channels (dC = 3 mm), is categorized into five flow patterns. These have a number of similarities with structures reported for circular and rectangular channels of similarly low hydraulic diameter. The transition boundaries between the patterns are shown to be a function of the chevron angle.
@article{tribbe2001part2,
abstract = { Pressure drop data measured during adiabatic two-phase flow in a plate-and-frame heat exchanger (PHE) are normalized with respect to the single-phase liquid pressure drop to give two-phase multipliers. A curve-fitted equation defines this relationship, which is a strong function of the Lockhart-Martinelli parameter. C coefficients are shown to be strong functions of both the Lockhart-Martinelli parameter and liquid viscosity, making this correlation unsuited to predictions of pressure drop in PHEs. Interfacial structure, observed during air-water downflow in replica channels (dC = 3 mm), is categorized into five flow patterns. These have a number of similarities with structures reported for circular and rectangular channels of similarly low hydraulic diameter. The transition boundaries between the patterns are shown to be a function of the chevron angle. },
added-at = {2012-11-19T14:53:56.000+0100},
author = {Tribbe, C. and Müller-Steinhagen, H. M.},
biburl = {https://www.bibsonomy.org/bibtex/2830ba2ef8bcf9f2072386cebfb14cc92/thorade},
doi = {10.1080/01457630150215686},
eprint = {http://www.tandfonline.com/doi/pdf/10.1080/01457630150215686},
interhash = {07adb3d55c72be3d229823eb3a020012},
intrahash = {830ba2ef8bcf9f2072386cebfb14cc92},
journal = {Heat Transfer Engineering},
keywords = {2001 analysis plate-heat-exchanger pressure-drop two-phase},
number = 1,
pages = {12-21},
timestamp = {2012-11-19T14:56:34.000+0100},
title = {Gas/Liquid Flow in Plate-and-Frame Heat Exchangers - Part II: Two-Phase Multiplier and Flow Pattern Analysis},
url = {http://dx.doi.org/10.1080/01457630150215686},
volume = 22,
year = 2001
}