Bai, L orcid.org/0000-0001-9016-1569, Zhang, L, Lin, G et al. (1 more author) (2016) Pool boiling with high heat flux enabled by a porous artery structure. Applied Physics Letters, 108 (23). ISSN 0003-6951
Abstract
A porous artery structure utilizing the concept of “phase separation and modulation” is proposed to enhance the critical heat flux of pool boiling. A series of experiments were conducted on a range of test articles in which multiple rectangular arteries were machined directly into the top surface of a 10.0 mm diameter copper rod. The arteries were then covered by a 2.0 mm thickness microporous copper plate through silver brazing. The pool wall was fabricated from transparent Pyrex glass to allow a visualization study, and water was used as the working fluid. Experimental results confirmed that the porous artery structure provided individual flow paths for the liquid supply and vapor venting, and avoided the detrimental effects of the liquid/vapor counter flow. As a result, a maximum heat flux of 610 W/cm2 over a heating area of 0.78 cm2 was achieved with no indication of dryout, prior to reaching the heater design temperature limit. Following the experimental tests, the mechanisms responsible for the boiling critical heat flux and performance enhancement of the porous artery structure were analyzed.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016, Author(s). This is an author produced version of a paper published in Applied Physics Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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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: | 12 Aug 2016 13:16 |
Last Modified: | 17 Jan 2018 18:42 |
Published Version: | http://dx.doi.org/10.1063/1.4953574%20%EE%98%8E |
Status: | Published |
Publisher: | AIP Publishing |
Identification Number: | 10.1063/1.4953574 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:103657 |