Characteristics of Multiple-Pass Heat Exchanger with Melting of Falling Snow(Heat Exchanger)

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概要

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• The structure of a multiple-pass heat exchanger composed of pipes and plate fins is similar to that of heat exchangers used for melting snow. In this study, we investigated the characteristics of a multiple-pass heat exchanger having two types, a regular pitch type and an irregular one, focusing on the brine pipe pitch of the multiplepass heat exchanger. The perfect melting condition and the melting efficiency were related to the dimensionless parameters of the heat exchanger and its operating conditions. The calculated results for the perfect melting condition and the melting efficiency agreed with the results obtained from field tests on melting of falling snow. Applying the irregular pitch extends the critical condition for perfect melting when the flow rate of brine is low or the area for melting of falling snow is large. Also, the melting efficiency of the irregular pitch is higher than that of the regular pitch.

• 一般社団法人日本機械学会の論文
• 2002-05-15

著者

• ISHIKAWA Nobuyuki

  Department of Physics and Mathematics, Aoyama Gakuin University

• Aoki Kazuo

  Department of Public Health and Hygiene, Oita Medical University

• Aoki Kazuo

  Department Of Public Health And Hygiene Oita Medical University

• Kobayashi Yoshiharu

  Nisshin Steel Company Ltd.

• HATTORI Masaru

  Department of Mechanical Engineering, Nagaoka University of Technology

• Hattori Masaru

  Department Of Mechanical Engineering Nagaoka University Of Technology

• Ishikawa Nobuyuki

  Department Of Mechanical Engineering Miyagi National College Of Technology

• Ishikawa Nobuyuki

  Department Of Astronomy Kyoto University

• Aoki Kazuo

  Department Of Aeronautics And Astronautics Graduate School Of Engineering Kyoto University

• Aoki Kazuo

  Department Of Mechanical Engineering Nagaoka University Of Technology

• Aoki Kazuo

  Department Of Aeronautical Engineering Kyoto University

• HATTORI Masaru

  Department of Mechanical Engineerig, Technological University of Nagaoka

• Hattori Masaru

  Department of Machine Engineering, Tokyo Institute of Technology

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