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Title: Experimental Investigation of Void Fraction During Refrigerant Condensation
Author(s): Graham, D.M.
Contributor(s): Newell, T.A.; Chato, J.C.
Subject(s): void fraction
Abstract: Void fractions were determined experimentally for Refrigerants 134a and 410A condensing inside a smooth horizontal 7.04 mm (0.277") i.d. tube. Tests that encompass a range of mass fluxes from 75-450 kg/m2-s (55-330 klbm/ft2-hr) and inlet qualities of 0.13- 0.9 were performed at a temperature of 35°C (95 OF). The experimental apparatus and procedures are described. The predictions of several existing correlations deviate from the experimental data, which necessitates the formulation of a new void fraction correlation. The correlation presented here is in terms of a Froude rate parameter, and accurately predicts the experimental data.
Issue Date: 1997-12
Publisher: Air Conditioning and Refrigeration Center. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report: Air Conditioning and Refrigeration Center TR-135
Genre: Technical Report
Type: Text
Language: English
Sponsor: Air Conditioning and Refrigeration Center Project 74
Date Available in IDEALS: 2009-05-18
Identifier in Online Catalog: 4193783

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