NDLI: Lifetime evaluation of ultra-thin polymer pulsating heat pipe

Content Provider	IEEE Xplore Digital Library
Author	Ogata, S. Sukegawa, E. Kimura, T.
Copyright Year	2014
Description	Author affiliation: Fujitsu Labs. Ltd., Atsugi, Japan (Ogata, S.; Sukegawa, E.; Kimura, T.)
Abstract	The influence of gas penetration on the lifetime of an ultra-thin polymer pulsating heat pipe (PPHP) was studied experimentally using two types of PPHPs. One type was made with bare polyethylene terephthalate (PET) films and was 0.4 mm thick. The other was covered by gas-barrier films and was 0.48 mm thick. First we compared the performance degradation of the PPHPs made with bare PET films exposed to environments with difference air pressures. The performance of the PPHP exposed to an atmospheric-pressure degraded within a few days, whereas that of the PPHP exposed to a low-pressure environment was maintained for about one month. Next we exposed a PPHP covered by gas-barrier films to an atmospheric-pressure and evaluated its performance change. As a result, the performance of the PPHP with gas-barrier films didn't degrade for more than two weeks. These results show that the gas penetration is a dominant factor in the performance degradation of PPHPs and their lifetime can be increased by using gas-barrier films for their casing materials.
Starting Page	15
Ending Page	18
File Size	1200114
Page Count	4
File Format	PDF
ISBN	9781479961948
e-ISBN	9781479961955
DOI	10.1109/ICSJ.2014.7009598
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-11-04
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement polymer Fluids Films Thermal resistance gas penetration Heating lifetime pulsating heat pipe Electrical resistance measurement leak rate
Content Type	Text
Resource Type	Article

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