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Two-phase flow characteristics of a corrugated channel.
Author(s) : WINKELMANN D., THONON B., AURACHER H., et al.
Summary
This paper deals with two-phase air-water downflow in the corrugated channels commonly found in plate and frame heat exchangers. The flow channel consists of a transparent plastic plate to allow observation of the two-phase flow pattern and a regular steel plate. The Lockhart-Martinelli concept of the two-phase multiplier is used for pressure drop data reduction and the relationship between the multiplier and Lockhart-Martinelli parameter is correlated using a Chisholm-type equation. The void fraction is expressed as a function of the two phase multiplier and linked to the geometry dependence of the Chisholm correlation parameter. Furthermore a preliminary flow regime chart is proposed.
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Details
- Original title: Two-phase flow characteristics of a corrugated channel.
- Record ID : 2000-1250
- Languages: English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Publication date: 1999/09/19
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Indexing
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Themes:
Heat transfer;
Two-phase flow - Keywords: Two-phase flow; Air; Simulation; Heat exchanger; Plate exchanger; Water; Pressure drop
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