Heat Transfer With High Flux Density Between a Wall and Water, With Local Boiling at the Wall; TRANSFERT DE CHALEUR A DENSITE DE FLUX ELEVEE ENTRE PAROI ET EAU AVEC EBULLITION LOCALE A LA PAROI
Technical Report
·
OSTI ID:4277226
The aim of the present study was to determine the relationship between the temperature of a hot wall and that of a cooling fluid under conditions where this fluid is subject to local boiling at the wall. Attention was directed particularly to the aspect of the phenomenon in the transition region between the classical turbulent convection and the convection with local boiling. The tests were carried out with water at an average temperature of 50 deg C circulating in an annular space, the heat flux deriving from the inside tube. The flux region used corresponds to a transmission by normal turbulent convection and by convection with the appcarance of local boiling. The results obtained in the field of normal convection follow the classical laws; the results in the zone where local boiling appears are in correct agreement with the formulas proposed by other authors for higher heat fluxes. (auth)
- Research Organization:
- France. Commissariat a l'Energie Atomique, Paris
- NSA Number:
- NSA-13-009252
- OSTI ID:
- 4277226
- Report Number(s):
- CEA-846
- Country of Publication:
- France
- Language:
- English
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