Transient multiboiling in a pin fin with temperature dependent thermal conductivity

Autor:	C. F. González-Fernández, Francisco Alhama, M. Alarcón
Rok vydání:	2004
Předmět:	Fluid Flow and Transfer Processes Materials science Thermal reservoir Convective heat transfer Thermal resistance Heat transfer Thermodynamics Heat transfer coefficient Condensed Matter Physics Thermal diffusivity Thermal conduction Nucleate boiling
Zdroj:	Heat and Mass Transfer. 41:67-74
ISSN:	1432-1181 0947-7411
DOI:	10.1007/s00231-004-0542-4
Popis:	Transient heat conduction in fins undergoing different kinds of convective processes (film, transition, nucleated boiling and natural convection) as in multiboiling processes take place, is a strongly non-linear problem because of the abrupt changes in the heat transfer coefficient that occur at certain temperatures. Transient equations for the thermal fields and fluxes are solved simultaneously, giving the time constant of the process; the stationary solution is compared with the numerical or experimental values of other authors. Temperature dependencies of the heat transfer coefficient and the thermal conductivity is assumed due to the large interval of temperatures occurring. Network Simulation Method is used for the numerical solution, which gives simultaneously thermal field of temperatures and heat fluxes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::291b9352362e6869e349b15615239479 https://doi.org/10.1007/s00231-004-0542-4 Zobrazit plný text záznamu Full text from SpringerLink