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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

Volumes:
Volume 50, 2019 Volume 49, 2018 Volume 48, 2017 Volume 47, 2016 Volume 46, 2015 Volume 45, 2014 Volume 44, 2013 Volume 43, 2012 Volume 42, 2011 Volume 41, 2010 Volume 40, 2009 Volume 39, 2008 Volume 38, 2007 Volume 37, 2006 Volume 36, 2005 Volume 35, 2004 Volume 34, 2003 Volume 33, 2002 Volume 32, 2001 Volume 31, 2000 Volume 30, 1999 Volume 29, 1998 Volume 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018026477
pages 977-992

FLOW BOILING HEAT TRANSFER OF R30 IN PARALLEL MICROCHANNEL HEAT SINKS

Zong-wei Zhang
College of Aeronautical Engineering, Civil Aviation University of China, Tianjin, China
Wen-di Xu
College of Aeronautical Engineering, Civil Aviation University of China, Tianjin, China
Zhao Wang
Aerospace System Engineering Shanghai, China
Cong Liu
College of Air Traffic Management, Civil Aviation University of China, Tianjin, China
Ke-lu Cui
College of Aeronautical Engineering, Civil Aviation University of China, Tianjin, China

RESUMO

This study examined the flow boiling heat transfer characteristics in horizontal rectangular microchannels with hydraulic diameter of 0.5 and 1.0 mm. Experiments were performed with R30 refrigerant under the following conditions: heat flux 1-16 kW·m-2, mass flux 111-333 kg·s-1·m-2, and vapor quality 0-0.35. The results showed that heat transfer was strongly affected by heat flux and vapor quality, while the mass flux remained less influential. The effect of flow regime transition on heat transfer coefficient was discussed through parameter analysis. Previous correlations have been examined and none of them can predict new data with satisfactory accuracy.

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