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Development and Investigation of Miniature Loop Heat Pipes
Technical Paper
1999-01-1983
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper discusses the results of investigations of two different variants of miniature loop heat pipe (mini-LHP) with a length of heat transfer of about 0.5m and cylindrical evaporators with a diameter of the zone of heat-load supply of 6 mm and length of 40 mm. The transportation lines in both cases were made of stainless steel in the form of capillaries with an inner diameter of 1 mm. Ammonia was used as a working fluid. The wicks were made of titanium with pore radius of 3.5 and 4.2 μk. The main difference between the two LHPs consisted in the construction of their evaporators. In one of the variants a higher heat-transportation capacity (up to 50W) was provided, but there were problems with the start-up and operation at an unfavorable orientation in the gravity field. The other LHP variant, with a lower heat-transportation capacity (up to 20W), demonstrated a reliable start-up and stable operation at any orientations.
Authors
Citation
Pastukhov, V., Maidanik, Y., and Chernyshova, M., "Development and Investigation of Miniature Loop Heat Pipes," SAE Technical Paper 1999-01-1983, 1999, https://doi.org/10.4271/1999-01-1983.Also In
References
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- Ogushi T. Heat transfer performance of flexible looped heat pipe 11 th Int. Heat Pipe Conf Stuttgart, Germany September 21-25, 1997
- Ning Zhu Heat transfer characteristics of micro/miniature inverted sintered evaporator. 11 th Int. Heat Pipe Conf. Stuttgart, Germany September 21-25, 1997
- Maidanik, Y.F. Fershtater, Y.G. Theoretical basis and classification of loop heat pipes and capillary pumped loops 10 th Int. Heat Pipe Conf. Stuttgart, Germany 21-25 September 1977