Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Heat Transfer Research
Factor de Impacto: 0.404 Factor de Impacto de 5 años: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN En Línea: 2162-6561

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

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2017016873
pages 991-1001

POOL BOILING EXPERIMENT ON A MODIFIED MICROPIN-FINNED SURFACE WITH MECHANICAL OSCILLATION

Jinjia Wei
School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P.R. China; Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong Uniersity, Xi'an, 710049, P.R.China
Xin Kong
State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P.R. China
Jie Ding
State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P.R. China
Yonghai Zhang
State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P.R. China; School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China

SINOPSIS

To further enhance pool boiling heat transfer, a new oscillation device was proposed. An oscillating plate was located over the heater surface with a vertical oscillation amplitude of 20 mm and frequency of 6 Hz. Three N-type phosphorus-doped silicon chips were used as heater surfaces. One was a smooth surface, and the other two were micropin-finned chips with a fin side length of 30 μm and fin height of 60 μm (chip PF30-60), and the pin fins were arrayed with aligned and staggered arrangements, respectively. Absolute ethyl alcohol was used as a working fluid. The results showed that mechanical oscillation can enhance boiling heat transfer in both convective region and high heat flux region. The wall superheat showed a considerable decrease of 20-30°C in the convective region by thinning the thermal boundary layer on the heater surface, and the critical heat flux could also be increased by 20%. In addition, the micropin-finned chips showed better performance due to much more fresh liquid supply from the interconnected tunnels formed by micropin fins, which is driven by capillary force.


Articles with similar content:

Enhanced Flow Boiling Heat Transfer in Microchannels with Structured Surfaces
International Heat Transfer Conference 15, Vol.34, 2014, issue
Evelyn N. Wang, Kuang-Han Chu, Yangying Zhu, Terry J. Hendricks, Dion S. Antao
THE INFLUENCE OF SUBCOOLING ON THE POOL NUCLEATE BOILING AND CRITICAL HEAT FLUX OF SIMULATED ELECTRONIC CHIPS
International Heat Transfer Conference 9, Vol.2, 1990, issue
Arthur E. Bergles, R. D. M. Carvalho
Boiling Heat Transfer Characteristics of Simulated Microelectronic Chips with Detachable Heat Sinks
International Heat Transfer Conference 8, Vol.4, 1986, issue
K.-A. Park , Arthur E. Bergles
EXPERIMENTAL INVESTIGATIONS OF HEAT TRANSFER FROM L-SHAPE HEAT PIPE FOR ELECTRONIC COOLING
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
Chakravarthy Balaji, Naresh Yarramsetty, K. Shrivignesh
An Analysis of the Effect of the Footprint Orientation on the Heat Sink Performance during Flow Boiling in Micro-Scale Channels
International Heat Transfer Conference 15, Vol.16, 2014, issue
Hugo Leonardo Souza Lara Leão, Gherhardt Ribatski