The special fluid flow and heat transfer characteristics of supercritical CO2 in a horizontal double-pipe heat exchanger have been numerically investigated. The AKN k-epsilon model was selected to model the turbulent flow and heat transfer of supercritical fluid. In conjugate heat transfer process, there exists obvious heat transfer deterioration on the top wall for horizontal flow. The region of heat transfer deterioration expands with the increased GShell or TShell,0, and the influence of TShell,0 on conjugate heat transfer is greater than that of GShell. The high-temperature fluid will gather near the top region. The intensity and position of the secondary flow can represent the turbulence heat transfer. When the supercritical fluid temperature is much higher than Tpc, buoyancy force can be omitted, but it can not been neglected even under relatively high mass flux.
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2017 25th International Conference on Nuclear Engineering
July 2–6, 2017
Shanghai, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5784-7
PROCEEDINGS PAPER
Numerical Investigation on Conjugate Heat Transfer of Supercritical CO2 in a Horizontal Double-Pipe Heat Exchanger Available to Purchase
Zhenxing Zhao,
Zhenxing Zhao
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Jun Wu,
Jun Wu
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Yuansheng Lin,
Yuansheng Lin
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Qi Xiao,
Qi Xiao
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Fan Bai,
Fan Bai
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Zhouyang Liu,
Zhouyang Liu
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Yong Liu,
Yong Liu
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Mo Tao,
Mo Tao
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Chunhui Dai
Chunhui Dai
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
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Zhenxing Zhao
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Jun Wu
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Yuansheng Lin
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Qi Xiao
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Fan Bai
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Zhouyang Liu
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Yong Liu
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Mo Tao
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Chunhui Dai
Wuhan Second Ship Des. & Res. Ins., Wuhan, China
Paper No:
ICONE25-66262, V006T08A018; 8 pages
Published Online:
October 17, 2017
Citation
Zhao, Z, Wu, J, Lin, Y, Xiao, Q, Bai, F, Liu, Z, Liu, Y, Tao, M, & Dai, C. "Numerical Investigation on Conjugate Heat Transfer of Supercritical CO2 in a Horizontal Double-Pipe Heat Exchanger." Proceedings of the 2017 25th International Conference on Nuclear Engineering. Volume 6: Thermal-Hydraulics. Shanghai, China. July 2–6, 2017. V006T08A018. ASME. https://doi.org/10.1115/ICONE25-66262
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