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Experimental study on heat transfer of thermally developing and developed, turbulent, horizontal pipe flow of dilute air-solids suspensions

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Abstract

Heat transfer characteristics of a turbulent, dilute air-solids suspension flow in thermally developing/developed regions were experimentally studied, using a uniformly heated, horizontal 54.5 mm-ID pipe and 43-μm-diameter glass beads. The local heat transfer was measured at 27 locations from the inlet to 120-dia downstream of the heated section over a range of Reynolds numbers 3×104−1.2×105 and solids loading ratio 0–3, and the fully developed profiles of air velocity/temperature and particle mass flux were measured at a location 140-dia downstream of the heated section using specially designed probes, inserted into the suspension flow. The effects of the Reynolds number, solids loading ratio, and azimuthal/longitudinal locations on the heat transfer characteristics and their interactions are discussed through comparison of the present results with the data obtained by other investigators.

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Authors and Affiliations

  1. Institute of Fluid Science, Tohoku University 2-1-1 Katahira, Aoba-ku, Sendai 980-77, Japan, , , , , , JP

    T. Aihara & M. Ukaku

  2. Component and Dynamics Dept 2 Engine Engineering Div 1, Toyota Motor Corp. 1 Toyota-cho, Toyota 471, Japan, , , , , , JP

    K. Yamamoto

  3. Engine Sect, Traffic Nuisance Div, Traffic Safety and Nuisance Research Institute 6-38-1 Shinkawa, Mitaka, Tokyo 181, Japan, , , , , , JP

    K. Narusawa

  4. Department of System Engineering, Faculty of Engineering, Ibaraki University 4-12-1 Naka Narusawa-cho, Hitachi 316, Japan, , , , , , JP

    T. Haraguchi

  5. Laboratoire d'Aerothermique, CNRS 4 ter, route des Gardes, F-92190 Meudon, France, , , , , , FR

    A. Lasek

  6. Laboratoire de Physique et Mecanique des Materiaux Heterogenes, CNRS Ecole Superieure de Physique et Chemie Industrielles 10, rue Vauquelin, F-75231 Paris, Cedex 05, France, , , , , , FR

    F. Feuillebois

Authors
  1. T. Aihara
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  2. K. Yamamoto
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  3. K. Narusawa
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  4. T. Haraguchi
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  5. M. Ukaku
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  6. A. Lasek
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  7. F. Feuillebois
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Received on 14 October 1996

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Aihara, T., Yamamoto, K., Narusawa, K. et al. Experimental study on heat transfer of thermally developing and developed, turbulent, horizontal pipe flow of dilute air-solids suspensions. Heat and Mass Transfer 33, 109–120 (1997). https://doi.org/10.1007/s002310050167

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  • DOI: https://doi.org/10.1007/s002310050167

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