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A Study on Rotor Blades for a Two-Stage Jet Fan

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Fluid Machinery and Fluid Mechanics

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Abstract

A jet fan used for road tunnel ventilation is an axial flow fan that has an ability to shift the direction of airflow if necessary. To satisfy the need, the identical performance of jet fan for both flow directions should be fundamental. As shifting the flow direction is made by only switching the rotational direction of an electric motor, a blade having symmetrical section profile has been widely used. In recent years, higher performance of jet fan is expected from the viewpoint of minimum energy consumption. Thus, we have been engaged in R&D of a jet fan using a model of JF600. In this paper, we demonstrate an idea to profile the section of rotor blade suitable for bi-directional flow, which is verified by using the aerodynamic performances of a two-stage jet fan obtained experimentally and numerically.

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References

  • Abbot, I.H., and von Doenhoff, A.E., 1949, “Theory of Wing Sections”, Dover

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  • Nishioka, T., Terasaka, H., and Kozu, T., 2000, “New Jet Fan for Tunnel Ventilation”, Turbomachinery, 28-6, pp.357–363 (in Japanese)

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  • Nishi, M., Yoshida, K., Matsuda, I., Yamasaki, K., and Kojima, K., 2002, “Aerodynamic Performance of 2-Stage Jet Fan Having Forced-Vortex-Type Rotor”, Proceedings of 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu

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  • Tukamoto, T., Niikura, Y., and Nishi, M., 1991, “Development of Jet Fans for Tunnel Ventilation”, Aerodynamics and Ventilation of Vehicle Tunnels, pp. 847–858, Elsevier

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Author information

Authors and Affiliations

  1. Kyushu Institute of Technology, Sensui-cho 1, Tobata, Kitakyushu, 804-8550, Japan

    Michihiro Nishi & Kouichi Yoshida

  2. Kyushu Women’s University, 1-1 Jiyugaoka, Yahatanishi, Kitakyushu, 807-8586, Japan

    Minoru Okamoto

  3. Kitakyushu National College of Technology, 5-20-1 Shii, Kokuraminami, Kitakyushu, 802-0985, Japan

    Hiroyasu Nakayama

Authors
  1. Michihiro Nishi
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  2. Kouichi Yoshida
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  3. Minoru Okamoto
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  4. Hiroyasu Nakayama
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Editor information

Editors and Affiliations

  1. CSET Chinese Academy of Sciences, No.11 Bei Si Huan Xi Lu, 100190, Beijing, China

    Jianzhong Xu

  2. Department of Thermal Engineering, Tsinghua University, 100084, Beijing, China

    Yulin Wu

  3. Department of Automotive Engineering, Tsinghua University, 100084, Beijing, China

    Yangjun Zhang

  4. Turbocharging Technology, National Key Laboratory of Diesel Engine, P.O.Box 22, 030706, Datong, Shanxi, China

    Junyue Zhang

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© 2009 Tsinghua University Press, Beijing and Springer-Verlag GmbH Berlin Heidelberg

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Nishi, M., Yoshida, K., Okamoto, M., Nakayama, H. (2009). A Study on Rotor Blades for a Two-Stage Jet Fan. In: Xu, J., Wu, Y., Zhang, Y., Zhang, J. (eds) Fluid Machinery and Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-89749-1_37

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  • DOI: https://doi.org/10.1007/978-3-540-89749-1_37

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-89748-4

  • Online ISBN: 978-3-540-89749-1

  • eBook Packages: EngineeringEngineering (R0)

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