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Keywords: heat sink
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. May 2022, 144(5): 052601.
Paper No: HT-21-1637
Published Online: March 4, 2022
... carried out on micro/mesoscale combustor-powered thermoelectric generators (MCP-TEG) to evaluate the influence of different types of heat sinks on the cold side of MCP-TEG. The micro/mesoscale combustor was connected with Bi 2 Te 3 based TEG1-12708 thermoelectric modules from both sides along with a heat...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. October 2021, 143(10): 101501.
Paper No: HT-21-1514
Published Online: September 8, 2021
... increase. Traditional air-cooling approaches usually provide insufficient performance or require heavy and bulky heat sinks to achieve adequate thermal management. To address this problem, a novel air cooled vertically enhanced manifold microchannel system (VEMMS) was developed. While minimizing...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. April 2020, 142(4): 044504.
Paper No: HT-19-1536
Published Online: February 27, 2020
...Zheng Wei; Sun Jianjun; Niu Tao; Ma Chenbo; Yu Qiuping; Zhang Yuyan To address the impact of temperature on the normal operation and service life of high-power electronic components, a circular microchannel heat sink with cones has been designed. The cones are evenly arranged inside circular...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. November 2019, 141(11): 114501.
Paper No: HT-18-1620
Published Online: September 27, 2019
... evaluate the cooling effects of a heat sink (absorbent) placed within the media on the particulate and fluid and hence to obtain the relevant temperature fields for the latter. In the absence of such a source term, the solutions collapse onto the recent literature. Results clearly demonstrate how...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2015, 137(6): 061006.
Paper No: HT-14-1164
Published Online: June 1, 2015
... of an existing industrial heat sink was minimized. Simple optimum results such as those with single fins above are difficult to obtain with heat sinks due to a larger number of variables and constraints. Such design is constrained not only by volume or mass, but also by the available fan power. An optimal...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. June 2014, 136(6): 064503.
Paper No: HT-13-1332
Published Online: March 11, 2014
.... heat spreading thermal spreading model thermal spreading resistance heat spreader heat sink heat pipe two-phase heat spreader Heat fluxes in many applications continue to increase as integrated, heat-dissipating components become more powerful and are reduced in size. This trend continues...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. January 2014, 136(1): 011401.
Paper No: HT-13-1158
Published Online: October 25, 2013
... and between the fluid and solid phases of the porous and heterogeneous medium of the heat sink. The upper-scale governing field equations, Eqs. (1) – (3) , are rigorously derived from fundamental lower-scale equations, and full conjugate heat transfer effects are included [ 26 , 49 ]. The local transport...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. November 2013, 135(11): 111006.
Paper No: HT-12-1180
Published Online: September 23, 2013
... & Francis , New York. [3] Kim , S. Y. , Koo , J. M. , and Kuznetsov , A. V. , 2001 , “ Effect of Anisotropy in Permeability and Effective Thermal Conductivity on Thermal Performance of an Aluminum Foam Heat Sink ,” Numer. Heat Transfer, Part A , 40 , pp. 21 – 36 . 10.1080...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2013, 135(7): 072601.
Paper No: HT-12-1242
Published Online: June 6, 2013
... and the relative alignment of pores in successive fins can have a substantial effect on the heat transfer performance. lotus-type porous metal metal foam heat transfer jet impingement heat sink Metal foams are of interest for thermal engineering applications such as heat sinks because...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2011, 133(12): 121901.
Published Online: October 3, 2011
...Avijit Bhunia; C. L. Chen Heat transfer due to steady, laminar air flow through a curved rectangular channel with a variable cross-sectional (c/s) area is investigated computationally. Such a flow passage is formed between two fin walls of a curved fin heat sink with a 90 deg bend, used in avionics...
Journal Articles
Article Type: Max Jakob Award Paper
J. Heat Transfer. October 2011, 133(10): 103001.
Published Online: August 11, 2011
... and can be effectively treated by application of VAT. It is an approach that can be applied to many different types of transport phenomena, see Travkin and Catton [( 15 )]. In this paper, the focus is on conjugate heat transfer using the simple heat sink and finned tube heat exchanger as examples...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. July 2010, 132(7): 071401.
Published Online: April 22, 2010
...Hamid Reza Seyf; Mohammad Layeghi A numerical analysis of forced convective heat transfer from an elliptical pin fin heat sink with and without metal foam inserts is conducted using three-dimensional conjugate heat transfer model. The pin fin heat sink model consists of six elliptical pin rows...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. January 2009, 131(1): 014501.
Published Online: October 16, 2008
... foams porous materials convection heat sink metal foam graphite foam Metal and graphite foams are a relatively new class of porous media characterized by having relatively high solid-phase conductivities. This is especially true if the pores are occupied by a low-conductivity fluid...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. December 2008, 130(12): 124501.
Published Online: September 17, 2008
... showed an excellent agreement with the diabatic data. The authors are grateful for the support of the National Science Foundation (Award No. CBET07-30315). The micro-pin-fin heat sink test section was fabricated at the Laser-Assisted Multi-Scale Manufacturing Laboratory, University...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. December 2008, 130(12): 122402.
Published Online: September 17, 2008
... for the conventional long pin-fin correlations. 11 09 2007 04 03 2008 17 09 2008 coolants cooling heat sinks microfluidics micro-pin-fins heat sink liquid cooling single phase heat transfer Breakthrough in many cutting-edge technologies is increasingly dependent...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. March 2008, 130(3): 034505.
Published Online: March 6, 2008
... considered in all cases is a 42 × 42 mm 2 base with a TCE height of 25 mm . An electrical heater at the heat sink base is used to simulate the heat generation in electronic chips. Various volumetric fractions of TCE in the conglomerate of PCM and TCE are considered. The case with 8% TCE volume fraction...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 2007, 129(11): 1554–1563.
Published Online: February 10, 2007
...W. H. Shih; F. C. Chou; W. H. Hsieh This study investigates the heat transfer characteristics of aluminum-foam heat sinks with restricted flow outlets under impinging-jet flow conditions. An annular flow-restricting mask is used to control the height of the flow outlet of the aluminum foam sink...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. August 2007, 129(8): 1052–1059.
Published Online: January 18, 2007
... fins, to the heated surface. In the current work, spray cooling of high-aspect-ratio open microchannels was explored, which substantially increases the total surface area and allows more residence time for the incoming liquid to be heated by the wall. Five such heat sinks were constructed...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. October 2007, 129(10): 1321–1332.
Published Online: December 14, 2006
... of microchannel heat sinks in subcooled and saturated boiling at low qualities are suggested. Key findings from this work are summarized as follows. 1 The fluid inlet conditions, i.e., degree of subcooling and velocity, affect the onset of nucleate boiling, but have little impact on the boiling curve once...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. February 2006, 128(2): 121–131.
Published Online: August 8, 2005
... at higher Reynolds numbers existing correlations predicted the results moderately well. Endwall effects, which diminish at high Reynolds numbers, and a delay in flow separation for compact pin fins were attributed to the obtained trend. 03 03 2005 08 08 2005 microfluidics heat sinks...