0
research-article

Development of Thinned Aluminum Flat Heat Pipe through Inclined Wall and Press Process

[+] Author and Article Information
Seok Hwan Moon

Materials & Components Basic Research Division, ICT Materials and Components Research, Laboratory, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-no, Yuseong-gu, Daejeon 34129, Republic of Korea
shmoon@etri.re.kr

Su Hyun Hong

Materials & Components Basic Research Division, ICT Materials and Components Research, Laboratory, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-no, Yuseong-gu, Daejeon 34129, Republic of Korea
suhyun@etri.re.kr

Hyun Tak Kim

Materials & Components Basic Research Division, ICT Materials and Components Research, Laboratory, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-no, Yuseong-gu, Daejeon 34129, Republic of Korea
htkim@etri.re.kr

1Corresponding author.

ASME doi:10.1115/1.4042511 History: Received August 30, 2018; Revised January 07, 2019

Abstract

In this study, the extrusion structure is designed to be sloped to solve the problem that it is difficult to be relatively thin compared to the large area of the plate structure. That is, a plurality of partitions separating the working fluid flow space in the plate-type heat pipe are designed to be inclined at 45 degree, and the extruded envelope is developed to obtain the desired total thickness through the second addition process of press. The capillary structure is inserted and positioned within the envelope prior to the secondary press process. Through this study, an aluminum flat heat pipe(AFHP) with a total thickness of 0.95 mm and a total length of 150 mm, which has a capillary structure with braided wire bundles or carbon wire bundles added thereto, was designed and manufactured. Through the performance test, it was found that the heat transfer performance of the AFHP with inclined wall did not show any deterioration characteristic compared with the AFHP having the normal vertical wall. The isothermal and heat transfer rate of the AFHP with Cu braid wick was superior to that of AFHP with simple rectangular groove wick. On the other hand, when the carbon wire bundle is added in the Cu braid, the isothermal characteristic was enhanced two times and the heat transfer rate was 15.5 W by improving about 42 % in the conditions that inclination angle is -90 degree and the evaporator temperature is not exceed 110 °C.

Copyright (c) 2019 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In