Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Journal of Enhanced Heat Transfer
Fator do impacto: 0.562 FI de cinco anos: 0.605 SJR: 0.175 SNIP: 0.361 CiteScore™: 0.33

ISSN Imprimir: 1065-5131
ISSN On-line: 1026-5511

Volumes:
Volume 26, 2019 Volume 25, 2018 Volume 24, 2017 Volume 23, 2016 Volume 22, 2015 Volume 21, 2014 Volume 20, 2013 Volume 19, 2012 Volume 18, 2011 Volume 17, 2010 Volume 16, 2009 Volume 15, 2008 Volume 14, 2007 Volume 13, 2006 Volume 12, 2005 Volume 11, 2004 Volume 10, 2003 Volume 9, 2002 Volume 8, 2001 Volume 7, 2000 Volume 6, 1999 Volume 5, 1998 Volume 4, 1997 Volume 3, 1996 Volume 2, 1995 Volume 1, 1994

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v5.i2.50
pages 127-138

Boiling on a Straight Pin Fin with an Insulated or Uninsulated Tip

W. W. Lin
Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, 106, ROC
J. C. Yang
Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, 106, ROC
D. J. Lee
Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan, 106, ROC

RESUMO

This paper investigated the heat transfer performance and associated stability characteristics of pin fin boiling with an insulated or uninsulated fin tip. Both linear stability analysis and experimental results reveals that, in both cases, (i) when film and transition boiling coexist on the fin surface, or only the transition boiling has covered the entire fin, the operation remains stable only if the fin length is less than some critical value; (ii) for transition + nucleate boiling, or the fin is in the three-mode boiling (film + transition + nucleate boiling), however, the boiling becomes stable. An uninsulated fin tip would enhance the stability of the boiling modes in (i), but to weaken it in (ii), with the magnitude controlled by a parameter σ. Experiments qualitatively verified the theoretical findings.


Articles with similar content:

Phase-Change Heat Transfer in Micro-Capillary Grooves
Journal of Enhanced Heat Transfer, Vol.11, 2004, issue 4
X. G. Hu, K. Yamamoto, Y. H. Zhao, Takaharu Tsuruta
TEMPERATURE-CONTROLLED POOL-BOILING HEAT TRANSFER
International Heat Transfer Conference 5, Vol.6, 1974, issue
Masahiro Shiotsu, Akira Sakurai
BOILING STABILITY CHARACTERISTICS ON A NONUNIFORMLY POROUS HEATED SURFACE
International Heat Transfer Conference 11, Vol.11, 1998, issue
D. J. Lee, W. W. Lin
THERMAL PERFORMANCE OF A PIN FIN WITH UNEQUAL CONVECTIVE COEFFICIENTS OVER ITS TIP AND SURFACE
Heat Transfer Research, Vol.49, 2018, issue 13
Sunil S. Mehendale
POOL AND CHANNEL NUCLEATE BOILING OP CRYOGENIC FLUIDS - SIMILARITIES
International Heat Transfer Conference 8, Vol.5, 1986, issue
V. A. Grigoriev, Alexander V. Klimenko, V. V. Klimenko