Bai, L orcid.org/0000-0001-9016-1569, Lin, G, Zhang, H et al. (1 more author) (2014) Effect of evaporator tilt on the operating temperature of a loop heat pipe without a secondary wick. International Journal of Heat and Mass Transfer, 77. pp. 600-603. ISSN 0017-9310
Abstract
The effect of evaporator tilt on the operating temperature of a loop heat pipe (LHP) without a secondary wick under terrestrial surroundings was investigated both experimentally and theoretically in this work. The experiments were conducted with the evaporator placed at three different tilts: (a) the evaporator was horizontal with the compensation chamber (CC), (b) the evaporator was vertically below the CC, and (c) the evaporator was a little higher than the CC with a tilt angle of 1.80°. Experimental results show that the evaporator tilt has significant effect on the operating temperature of the LHP: the operating temperature at evaporator tilt (c) was much higher than those at two other evaporator tilts. Theoretical analysis based on a two-zoned evaporator wick, i.e. a subcooled zone and a saturated zone, is conducted to explain the experimental results, indicating that the cooling effect of the returning liquid on the vapor region in the CC or the evaporator core is crucial in determining the operating temperature of LHPs, which should be well considered in the LHP design and applications.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2014 Elsevier Ltd. This is an author produced version of a paper published in International Journal of Heat and Mass Transfer. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Loop heat pipe; Evaporator tilt; Operating temperature; Heat leak; Cooling effect |
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: | 21 Jul 2016 13:47 |
Last Modified: | 05 Nov 2017 21:08 |
Published Version: | https://dx.doi.org/10.1016/j.ijheatmasstransfer.20... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.ijheatmasstransfer.2014.05.044 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:95745 |