The critical heat transfer characteristics of an insulated or compound sphere considering heat radiation

Autor:	José Luis Salazar, Shih-Shih Ku, King-Leung Wong
Rok vydání:	2012
Předmět:	Materials science Convective heat transfer Critical heat flux Heat transfer Heat spreader General Engineering Plate heat exchanger Thermodynamics Heat transfer coefficient Heat sink Fin (extended surface)
Zdroj:	Journal of the Chinese Institute of Engineers. 35:939-945
ISSN:	2158-7299 0253-3839
Popis:	Critical heat transfer from an insulated or compound sphere happen in ambient air with natural convection. Thus, heat radiation in such a situation must be considered because natural convection has only a small effect. It is found that the critical heat transfer characteristics considering heat radiation are very different from those neglecting heat radiation. The conventional critical heat transfer characteristics neglecting heat radiation only depend on sphere size, external convection heat transfer coefficient, and insulation conductivity. In addition to the above parameters, the critical heat transfer characteristics considering heat radiation are also related to the surface emissivities of the sphere and the insulation, the surrounding temperature, and the internal convection heat transfer coefficient.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d803d15f173110dfa76f8188b5bf39aa https://doi.org/10.1080/02533839.2012.725819 Zobrazit plný text záznamu