Numerical analysis of the filling ratio impact on the heat transfer intensityin a two-phase closed thermosyphon

Autor: A. P. Vergun, A. E. Nee, A. E. Nurpeiis
Jazyk: English<br />Russian
Rok vydání: 2017
Předmět:
Zdroj: Известия высших учебных заведений: Проблемы энергетики, Vol 0, Iss 1-2, Pp 114-121 (2017)
Druh dokumentu: article
ISSN: 1998-9903
DOI: 10.30724/1998-9903-2016-0-1-2-114-121
Popis: The plane problem of forced convection and conjugate heat exchange in a two-phase closed thermosyphon of rectangular cross-section was solved. Numerical modeling was conducted for three filling ratio variants (10%, 25%, 50%) of the heat transfer device under study. It was established that filling ratio increasing leads to a redistribution of the energy accumulated by liquid and vapor, and, respectively, to the thermal regime change of the heat exchanger under consideration. It was shown that an increase in filling ratio decreases the heat transfer rate from the bottom horizontal boundary to the upper boundary and, as a result, the temperature of thermosyphon bottom lid rises.
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