Zoubir, A. and Agounoun, R. and Kadiri, I. and Sbai, K. and Rahmoune, M. (2016) Experimental study of the intensification of heat transfer by pool boiling LN2: Application to cooling of a brass ribbon in horizontal position. Frontiers in Heat and Mass Transfer, 7 (1).

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

Boiling heat transfer process is important because it is a way to increase the flux density transmitted at low temperature differences. To quantify the thermal exchanges, we performed an experimental study of the nitrogen pool boiling, in transient conditions, on a horizontal brass ribbon for a fixed flux density. The results show that there is no break between the monophasic convection zone and the nucleated boiling region. In the nucleated boiling zone, the temperature variations are very small. We also note that the overheating required to trigger boiling increases with the time delay after the activation of nucleation sites. © 2016, Global Digital Central. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Brass; Nitrogen; Temperature; Time delay, Boiling heat transfer; Low-temperature difference; Overheated; Phase Change; Pool boiling; Temperature variation; Thermal inertia; Transient conditions, Heat transfer
Subjects: Engineering
Divisions: SCIENTIFIC PRODUCTION > Engineering
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:47
URI: http://eprints.umi.ac.ma/id/eprint/3269

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