I303 HEAT TRANSFER CHARACTERISTICS OF PURE REFRIGERANT HFC134a CONDENSING IN A MULTI-PORT EXTRUDED TUBE(Condensation and heat exchanger)
スポンサーリンク
概要
- 論文の詳細を見る
In the present study, the heat transfer characteristics are investigated experimentally for condensation of pure refrigerant HFC134a in a 955mm long multi-port extruded tube of 0.72mm hydraulic diameter. The experiments were carried out in the ranges of mass velocity of G=200〜600 kg/m^2s and vapor quality of x=1.0〜0.0 at a constant inlet pressure of 1.7 MPa. The wall temperature and the wall heat flux in every 75mm long subsection were measured. The refrigerant mass flow rate was also measured. The local heat transfer coefficient evaluated in every subsection was compared with correlations of Haraguchi et al. (1994) and Moser et al. (1998).
- 一般社団法人日本機械学会の論文
- 2000-10-01
著者
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Koyama Shigeru
Institute Of Advanced Material Study Kyushu University
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KUWAHARA Ken
Institute of Advanced Material Study, Kyushu University
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Kuwahara Ken
Institute For Materials Chemistry And Engineering Kyushu University
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Koyama Shigeru
Institute For Materials Chemistry And Engineering Kyushu University
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NAKASHITA Kouichi
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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ITHO Daisuke
Institute of Advanced Material Study, Kyushu University
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YAMAMOTO Ken
Air-Conditioning R &D Depart.
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SHIMOYA Masahiro
Air-Conditioning R &D Depart.
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Itho Daisuke
Institute Of Advanced Material Study Kyushu University
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Shimoya Masahiro
Air-conditioning R &d Depart.
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Nakashita Kouichi
Interdisciplinary Graduate School Of Engineering Sciences Kyushu University
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Koyama Shigeru
Institute Advanced Material Study Kyushu University
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Yamamoto Ken
Air-conditioning R &d Depart.
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