Forced Convective Boiling of Nonazeotropic Refrigerant Mixtures of R22 and R114 Inside a Horizontal Tube

Akio Miyara, Hiroshi Takamatsu, Shigeru Koyama, Kazuo Yonemoto, Tetsu Fujii

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

抄録

Experimental results of forced convective boiling of nonazeotropic refrigerant mixtures of R22 and R114 inside a horizontal tube with internal spiral grooves are presented. Pure refrigerants R22 and R114 and three kinds of their mixtures containing about 25, 50 and 75 mol%R114 are tested in the ranges of mass velocity of 77 to 347 kg/(m2s) and of pressure of 0.6 to 7 bar. The axial distributions of refrigerant temperature and heat transfer coefficient for mixed refrigerants depend on the concentration, while those for pure refrigerants of R22 and R114 show similar behavior. An empirical correlation concerning the heat transfer coefficient of pure and mixed refrigerants is proposed as a function of the boiling number, Lockhart-Martinelli parameter and liquid heat transfer coefficient for a smooth tube.

元の言語英語
ページ(範囲)2523-2528
ページ数6
ジャーナルTransactions of the Japan Society of Mechanical Engineers Series B
54
発行部数505
DOI
出版物ステータス出版済み - 1 1 1988

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refrigerants
Refrigerants
boiling
Boiling liquids
tubes
heat transfer coefficients
Heat transfer coefficients
grooves
Liquids
liquids

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

これを引用

Forced Convective Boiling of Nonazeotropic Refrigerant Mixtures of R22 and R114 Inside a Horizontal Tube. / Miyara, Akio; Takamatsu, Hiroshi; Koyama, Shigeru; Yonemoto, Kazuo; Fujii, Tetsu.

:: Transactions of the Japan Society of Mechanical Engineers Series B, 巻 54, 番号 505, 01.01.1988, p. 2523-2528.

研究成果: ジャーナルへの寄稿記事

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