Experimental study on condensation of a zeotropic mixture R1234ze(E) / R32 in a horizontal micro-fin tube

D. Baba, H. Nakahta, C. Kondou, S. Koyama

    研究成果: 書籍/レポート タイプへの寄稿会議への寄与

    抄録

    Heat transfer and pressure drop during condensation of a zeotropic refrigerant mixture R1234ze(E)/R32 (50/50 mass%) and pure refrigerants R1234ze(E) and R32 in a horizontal micro-fin tube are experimentally investigated in this paper. Experiments are conducted in the mass velocity range of 150 to 400 kg m-2s-1 at a constant inlet temperature 40°C. Tested micro-fin tube is made of copper, and its geometry is as follows: 6.05 mm in outer diameter, 5.21 mm in mean inside diameter, 0.26 mm in fin height, and 20 degree in spiral angle. The effects of mass velocity and the difference of pure and mixed refrigerants on heat transfer and frictional pressure drop characteristics are clarified. The measured heat transfer coefficient and frictional pressure drop of the zeotropic mixture are compared with several existing correlations.

    本文言語英語
    ホスト出版物のタイトル6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012
    出版社Chinese Association of Refrigeration (CAR)
    ページ810-817
    ページ数8
    ISBN(印刷版)9781632660152
    出版ステータス出版済み - 2012
    イベント6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012 - Xi'an, 中国
    継続期間: 8月 26 20128月 28 2012

    出版物シリーズ

    名前6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012

    その他

    その他6th Asian Conference on Refrigeration and Air Conditioning, ACRA 2012
    国/地域中国
    CityXi'an
    Period8/26/128/28/12

    !!!All Science Journal Classification (ASJC) codes

    • 電子工学および電気工学

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