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Miniature loop heat pipes for electronics cooling.

Author(s) : PASTUKHOV V. G., MAIDANIK Y. F., VERSHININ C. V., et al.

Type of article: Article

Summary

This article is devoted to the development of miniature loop heat pipes (mLHPs) with a nominal capacity of 25-30 W and a heat-transfer distance up to 250 mm intended for cooling electronics components and CPU of mobile PC. It gives the results of investigations on several prototypes of mLHPs incorporated into remote heat exchanger (RHE) systems under different conditions. It has been established that in the nominal range of heat loads, orientation has practically no effect on the mLHPs operating characteristics. Under air cooling the total thermal resistance of such a system is 1.7-4.0 °C/W and depends strongly on the cooling conditions and the radiator efficiency. In this case the mLHP's own thermal resistance is in the limits from 0.3 to 1.2 °C/W, and the maximum capacity reaches 80-120 Bt. The results obtained make it possible to regard mLHPs as quite promising devices for RHE systems providing thermal regimes for electronics components and personal computers.

Details

  • Original title: Miniature loop heat pipes for electronics cooling.
  • Record ID : 2004-0717
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 23 - n. 9
  • Publication date: 2003/06

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