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Keywords: Enhancement
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. September 2013, 135(9): 091001.
Paper No: HT-12-1415
Published Online: July 26, 2013
... with a focus on the future research needs. After providing a brief introduction, the paper addresses six topics related to transport phenomena in microchannels: single-phase gas flow, enhancement in single-phase liquid flow and flow boiling, flow boiling instability, condensation, electronics cooling...
Journal Articles
Publisher: ASME
Article Type: Technology Review
J. Heat Mass Transfer. March 2012, 134(3): 034001.
Published Online: January 10, 2012
... rates. High performance microchannel heat exchangers are also attractive in applications where space and/or weight constraints dictate the size of a heat exchanger or where performance enhancement is desired. This survey article provides a historical perspective of the progress made in understanding...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. January 2012, 134(1): 011503.
Published Online: November 18, 2011
...Hafiz Muhammad Ali; Adrian Briggs This paper presents a fundamental study into the underlying mechanisms influencing heat transfer during condensation on enhanced surfaces. New experimental data are reported for condensation of ethylene glycol at near atmospheric pressure and low velocity on 11...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 2010, 132(8): 081701.
Published Online: June 2, 2010
... experimental parameters space. On the constant heat duty basis, the pumping power has been reduced up to 30% for the combined enhancement geometry than the individual enhancement geometries. A schematic diagram of the experimental setup is shown in Fig. 3 . The setup consisted of (i) a storage tank in which...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. March 2010, 132(3): 031901.
Published Online: December 30, 2009
... serpentine passages with 180-deg turns under the blade tip cap. In this paper, enhanced heat transfer of a blade tip cap has been investigated numerically. The computational models consist of a two-pass channel with a 180-deg turn and various arrays of pin fins mounted on the tip cap, and a smooth two-pass...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. March 2010, 132(3): 034503.
Published Online: December 29, 2009
... surface area ratios. In addition, the critical holes-to-fin surface area ratios, below which the permeable fins transfer more heat than solid fins, is found to increase as Pr and f o increase. Finally, this work paves a way for a new passive method for enhancing heat transfer. convection...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2009, 131(12): 121005.
Published Online: October 15, 2009
...D. Keith Hollingsworth; Larry C. Witte; Marcelino Figueroa The time-dependent temperature distribution on an inclined, thin-foil uniform-heat-generation heater was used to infer the heat transfer enhancement caused by the passage of an FC-87 bubble sliding beneath the lower surface of the heater...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. September 2009, 131(9): 091001.
Published Online: June 19, 2009
...Wen-Jei Yang; Nengli Zhang; Daniel L. Vrable This paper introduces a novel heat transfer enhancement surface, referred to as metal-graphite composite surface. It is comprised of high thermal conductivity graphite microfibers interspersed within a metal matrix (copper or aluminum) to enhance...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. November 2008, 130(11): 111501.
Published Online: September 3, 2008
... bubbles convection evaporation two-phase flow bubbles microlayers enhancement There are many convective situations where bubbles, once nucleated at an upstream position, will slide downstream along a heated surface. Cornwell and Schüller ( 1 ) found that sliding bubbles can sustain high...
Topics: Bubbles
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. July 2008, 130(7): 074503.
Published Online: May 20, 2008
... to solar irradiations. Finally, this work provides new passive methods for enhancing heat transfer in thermal systems. 15 02 2007 28 06 2007 20 05 2008 heat radiation fins irradiation heat transfer extended surfaces enhancement Heat transfer through extending...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. March 2007, 129(3): 395–400.
Published Online: August 14, 2006
... , 22 , pp. 541 – 550 . Alawadhi , E. M. , and Amon , C. H. , 2000 , “ Performance Analysis of an Enhanced PCM Thermal Control Unit ,” Proceedings of ITherm 2000 , Las Vegas, NV, May 24–26, pp. 283 – 289 . Baker , K. W. , Jang , J. H. , and Yu , J. S. , 1995...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. September 2006, 128(9): 861–869.
Published Online: March 1, 2006
...F. C. Lai; J. Mathew Prior numerical solutions of electrohydrodynamic (EHD) gas flows in a horizontal channel with a positive-corona discharged wire have revealed the existence of steady-periodic flows. It is speculated that heat transfer by forced convection may be greatly enhanced by taking...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. July 2005, 127(7): 675–683.
Published Online: February 2, 2005
...Camil-Daniel Ghiu; Yogendra K. Joshi A study of pool boiling at atmospheric pressure from single-layered enhanced structures was conducted for a dielectric fluorocarbon liquid (PF 5060). The parameters investigated in this study were: (a) Heat flux ( 1 - 45 W ∕ cm 2 ) ; (b) width...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. October 2004, 126(5): 697–707.
Published Online: November 16, 2004
... the view point of synergy between velocity and temperature gradient. It is shown that the synergy between velocity and temperature field becomes worse in the downstream part of the fin surface, and it is this place that enhancement technique is highly needed. The strip location of fin C just fits...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. June 2004, 126(3): 321–328.
Published Online: June 16, 2004
... Condensation Enhancement Finned Surfaces Heat Transfer Efforts have been deployed in recent years toward designing heat exchangers that simultaneously meet the requirements of energy saving, size reduction and subsequent cost reduction. This has led to an extensive use of heat transfer augmentation...