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ACRC Technical Report 135PDF


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
Sponsor:Air Conditioning and Refrigeration Center Project 74
Date Available in IDEALS:2009-05-18
Identifier in Online Catalog:4193783

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