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Researchers from Federal University Provide Details of New Studies and Findings in the Area of Heat Transfer Research (Theoretical-experimental...

July 1, 2014



Researchers from Federal University Provide Details of New Studies and Findings in the Area of Heat Transfer Research (Theoretical-experimental analysis of conjugated heat transfer in nanocomposite heat spreaders with multiple microchannels)

By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Heat Transfer Research. According to news reporting originating in Rio de Janeiro, Brazil, by VerticalNews journalists, research stated, "The present work deals with conjugated heat transfer in heat spreaders made of a nanocomposite substrate with longitudinally molded multiple straight micro-channels. An experimental analysis is undertaken to validate a recently proposed methodology for the solution of conjugated conduction-convection heat transfer problems, which are often of relevance in thermal micro-systems analysis, based on a single domain formulation and solution of the resulting problem through integral transforms."

The news reporters obtained a quote from the research from Federal University, "The single domain formulation simultaneously models the heat transfer phenomena at both the fluid streams and the channels walls by making use of coefficients represented as space variable functions with abrupt transitions occurring at the fluid-wall interfaces. The Generalized Integral Transform Technique (GITT) is then employed in the hybrid numerical-analytical solution of the resulting convection-diffusion problem with variable coefficients. The experimental investigation involves the determination of the surface temperature distribution over the heat spreader with the molded microchannels that exchange heat with the base plate by flowing hot water at a prescribed mass flow rate."

According to the news reporters, the research concluded: "The infrared thermography technique is employed to investigate the response of the heat spreader surface temperature to a hot inlet fluid flow, aiming at the analysis of micro-systems that provide a thermal response from either their normal operation or due to a promoted stimulus for characterization purposes."

For more information on this research see: Theoretical-experimental analysis of conjugated heat transfer in nanocomposite heat spreaders with multiple microchannels. International Journal of Heat and Mass Transfer, 2014;74():306-318. International Journal of Heat and Mass Transfer can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; International Journal of Heat and Mass Transfer - www.elsevier.com/wps/product/cws_home/210)

Our news correspondents report that additional information may be obtained by contacting D.C. Knupp, Federal University of Rio de Janeiro, Nanoengn Department, POLI&COPPE, BR-21945970 Rio De Janeiro, Brazil. Additional authors for this research include C.P. Naveira-Cotta and R.M. Cotta.

Keywords for this news article include: Brazil, South America, Rio de Janeiro, Heat Transfer Research

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Source: Journal of Technology


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