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Prediction of flow boiling heat transfer data for R134a, R600a and R290 in minichannels

Abstract

In the paper presented is the analysis of the results of calculations using a model to predict flow boiling of refrigerants such as R134a, R600a and R290. The latter two fluids were not used in development of model semiempirical correction. For that reason the model was verified with present experimental data. The experimental research was conducted for a full range of quality variation and a relatively wide range of mass velocity. The aim of present study was also to test the sensitivity of developed model to a selection of the model of two-phase multiplier and the nonadiabatic effects. For that purpose two modelss have been analysed namely the one due to Muller-Steinhagen and Heck, and Friedel. In addition, the work shows the importance of taking surface tension into account in the calculation of the flow structure.

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DOI:
Digital Object Identifier (open in new tab) 10.2478/aoter-2014-0036
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Details

Category:
Articles
Type:
artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:
Archives of Thermodynamics no. 35, pages 97 - 114,
ISSN: 1231-0956
Language:
English
Publication year:
2014
Bibliographic description:
Mikielewicz D., Jakubowska B.: Prediction of flow boiling heat transfer data for R134a, R600a and R290 in minichannels// Archives of Thermodynamics. -Vol. 35., iss. 4 (2014), s.97-114
DOI:
Digital Object Identifier (open in new tab) 10.2478/aoter-2014-0036
Verified by:
Gdańsk University of Technology

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