Investigations on multimode heat transfer from a heated vertical plate / R. Krishna Sabareesh in Journal of heat transfer, Vol. 132 N° 3 (Mars 2010)  

Public ISBD [article]  inJournal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [032501-1/8] Titre : Investigations on multimode heat transfer from a heated vertical plate Type de document : texte imprimé Auteurs : R. Krishna Sabareesh, Auteur ; S. Prasanna, Auteur ; S. P. Venkateshan, Auteur Article en page(s) : pp. [032501-1/8] Note générale : Physique Langues : Anglais (eng) Mots-clés : Multimode heat transfer Interfermeter Thermal conductivity Emissivity Asymptotic limits Index. décimale : 536 Chaleur. Thermodynamique Résumé : The interaction of surface radiation and conduction with natural convection heat transfer from a vertical flat plate assembly, with an embedded heater, has been investigated, both experimentally (using differential interferometer) and numerically (using FLUENT), in the present work. In the absence of radiation, the asymptotic limits that can be attained by the heated plate are isothermal and isoflux conditions. High values of plate thermal conductivity tend to make the surface isothermal, where as, lower values of thermal conductivity tend to make it isoflux. Irrespective of the thermal conductivity of the plate, an increase in the emissivity reduces the average temperature of the plate and brings the plate toward isothermal condition. A new methodology has also been proposed to determine the thermophysical properties, emissivity and thermal conductivity, the consistency of which is tested by carrying out experiments for various heat inputs and comparing the estimated values with those available in literature. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Investigations on multimode heat transfer from a heated vertical plate [texte imprimé] / R. Krishna Sabareesh, Auteur ; S. Prasanna, Auteur ; S. P. Venkateshan, Auteur . - pp. [032501-1/8]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [032501-1/8] Mots-clés : Multimode heat transfer Interfermeter Thermal conductivity Emissivity Asymptotic limits Index. décimale : 536 Chaleur. Thermodynamique Résumé : The interaction of surface radiation and conduction with natural convection heat transfer from a vertical flat plate assembly, with an embedded heater, has been investigated, both experimentally (using differential interferometer) and numerically (using FLUENT), in the present work. In the absence of radiation, the asymptotic limits that can be attained by the heated plate are isothermal and isoflux conditions. High values of plate thermal conductivity tend to make the surface isothermal, where as, lower values of thermal conductivity tend to make it isoflux. Irrespective of the thermal conductivity of the plate, an increase in the emissivity reduces the average temperature of the plate and brings the plate toward isothermal condition. A new methodology has also been proposed to determine the thermophysical properties, emissivity and thermal conductivity, the consistency of which is tested by carrying out experiments for various heat inputs and comparing the estimated values with those available in literature. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]

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