Microbubble emission boiling in a rectangular channel flow

Manabu Tange, Makoto Watanabe, Shu Takagi, Fumio Takemura, Masahiro Shoji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Highly subcooled flow boiling at high heat flux in a rectangular minichannel of 2 mm × 2 mm in dimension was experimentally investigated. The channel was heated only from the bottom wall of the channel and it is regarded as a model of cooling components on electric devices in mobile gears. Under the condition of high subcooling and high heat flux in the stagnant pool and conventional scale channel flow, many fine vapor bubbles are emitted from primary vapor bubbles on heated surfaces. This boiling regime is called microbubble emission boiling (MEB). If we realize MEB in a minichannel, high heat flux due to vaporization will be obtained and large pressure loss due to confinement of bubble will be avoided. This paper first reports the results of our early experimental investigations on MEB in a pool boiling system to introduce the appearance of MEB. In flow boiling experiment, we reborts heat transfer characteristics and photographic observation.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Microchannels and Minichannels, 2005
Pages139-143
Number of pages5
VolumePART B
Publication statusPublished - 2005
Externally publishedYes
Event3rd International Conference on Microchannels and Minichannels, ICMM2005 - Toronto, ON
Duration: 2005 Jun 132005 Jun 15

Other

Other3rd International Conference on Microchannels and Minichannels, ICMM2005
CityToronto, ON
Period05/6/1305/6/15

Fingerprint

Channel flow
Boiling liquids
Heat flux
Vapors
Bubbles (in fluids)
Vaporization
Gears
Heat transfer
Cooling

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Tange, M., Watanabe, M., Takagi, S., Takemura, F., & Shoji, M. (2005). Microbubble emission boiling in a rectangular channel flow. In Proceedings of the 3rd International Conference on Microchannels and Minichannels, 2005 (Vol. PART B, pp. 139-143). [ICMM2005-75231]

Microbubble emission boiling in a rectangular channel flow. / Tange, Manabu; Watanabe, Makoto; Takagi, Shu; Takemura, Fumio; Shoji, Masahiro.

Proceedings of the 3rd International Conference on Microchannels and Minichannels, 2005. Vol. PART B 2005. p. 139-143 ICMM2005-75231.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tange, M, Watanabe, M, Takagi, S, Takemura, F & Shoji, M 2005, Microbubble emission boiling in a rectangular channel flow. in Proceedings of the 3rd International Conference on Microchannels and Minichannels, 2005. vol. PART B, ICMM2005-75231, pp. 139-143, 3rd International Conference on Microchannels and Minichannels, ICMM2005, Toronto, ON, 05/6/13.
Tange M, Watanabe M, Takagi S, Takemura F, Shoji M. Microbubble emission boiling in a rectangular channel flow. In Proceedings of the 3rd International Conference on Microchannels and Minichannels, 2005. Vol. PART B. 2005. p. 139-143. ICMM2005-75231
Tange, Manabu ; Watanabe, Makoto ; Takagi, Shu ; Takemura, Fumio ; Shoji, Masahiro. / Microbubble emission boiling in a rectangular channel flow. Proceedings of the 3rd International Conference on Microchannels and Minichannels, 2005. Vol. PART B 2005. pp. 139-143
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