Zhang, K, Bai, L, Lin, G et al. (2 more authors) (2019) Experimental study on pool boiling in a porous artery structure. Applied Thermal Engineering, 149. pp. 377-384. ISSN 1359-4311
Abstract
In this work, a porous artery structure is proposed to enhance the critical heat flux (CHF) of pool boiling based on the concept of “phase separation and modulation” and extensive experimental studies have been carried out for validation. In the experiment, multiple rectangular arteries were machined directly into the top surface of a copper rod to provide individual flow paths for vapor escaping. The arteries were covered by a microporous copper plate where capillary forces can be developed at the liquid/vapor interface to prevent the vapor from penetrating the porous structure and realize strong liquid suction simultaneously. The pool wall was made of transparent quartz glass to enable a visualization study where the liquid/vapor distribution and movement can be observed directly. Favorable results have been reached as expected, and a maximum heat flux up to 805 W/cm2 was achieved with no indication of any dry-out, which successfully validated this new concept. In addition, the effects of the diameter and thickness of the porous copper plate, and the connection method between the porous copper plate and copper fin on the pool boiling heat transfer in the porous artery structure were investigated, and the inherent physical mechanisms were analyzed and discussed.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | (c) 2018, Elsevier Ltd. All rights reserved. This is an author produced version of a paper published in Applied Thermal Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Pool boiling; Critical heat flux; Porous structure; Experiment |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Feb 2019 10:29 |
Last Modified: | 14 Dec 2019 01:39 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.applthermaleng.2018.12.089 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:143075 |
Download
Filename: Kai_Experimental study on pool boiling in a porous artery structure-R2.pdf
Licence: CC-BY-NC-ND 4.0