The objective of the study is to investigate, through experiments, heat transfer characteristics in a rotating two-pass rib-roughened coolant channel with a sharp 180-deg turn. Detailed measurements of local surface temperatures of the coolant channel are conducted using a newly designed and constructed test section which has as many as 458 thermocouples installed on the rotating channel walls. Description of this unique experimental rig is given. The cross section of the channel is rectangular with 15 mm in width and 30 mm in height. In addition to a rib-free (smooth) surface, two types of rib configurations are employed: 90° and 45° parallel ribs. The measured temperature distribution for the entire test section are shown and the effects of rib configuration and rotation on the cooling performance are examined. It was also found that the secondary flow created in the bend has substantial influence on the heat transfer in the channel after the turning section.
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ASME 1996 Turbo Asia Conference
November 5–7, 1996
Jakarta, Indonesia
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7877-4
PROCEEDINGS PAPER
Detailed Measurement of Convective Heat Transfer in Rotating Two-Pass Rib-Roughened Coolant Channels
S. Mochizuki,
S. Mochizuki
Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
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M. Beier,
M. Beier
Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
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A. Murata,
A. Murata
Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
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T. Okamura,
T. Okamura
Toshiba Corp., Tsurumi, Yokohama, Japan
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Y. Hashidate
Y. Hashidate
Toshiba Corp., Tsurumi, Yokohama, Japan
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S. Mochizuki
Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
M. Beier
Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
A. Murata
Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
T. Okamura
Toshiba Corp., Tsurumi, Yokohama, Japan
Y. Hashidate
Toshiba Corp., Tsurumi, Yokohama, Japan
Paper No:
96-TA-006, V001T05A002; 6 pages
Published Online:
January 27, 2015
Citation
Mochizuki, S, Beier, M, Murata, A, Okamura, T, & Hashidate, Y. "Detailed Measurement of Convective Heat Transfer in Rotating Two-Pass Rib-Roughened Coolant Channels." Proceedings of the ASME 1996 Turbo Asia Conference. ASME 1996 Turbo Asia Conference. Jakarta, Indonesia. November 5–7, 1996. V001T05A002. ASME. https://doi.org/10.1115/96-TA-006
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