Boiling heat transfer and pressure drop of a refrigerant flowing vertically upward in small rectangular and triangular tubes

Koji Enoki, Kazushi Miyata, Hideo Mori, Keishi Kariya, Yoshinori Hamamoto

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

In the present study, experiments were performed to examine the characteristics of flow boiling heat transfer and pressure drop of a refrigerant R410A flowing vertically upward in small copper rectangular and triangular tubes with hydraulic diameters of 1.04 and 0.88 mm, respectively, for the development of a high-performance heat exchanger using small tubes or minichannels for air-conditioning systems. Their characteristics were clarified by comparing the previous experimental data of the small circular tube (1.00 mm internal diameter). In the rectangular and triangular tubes, the pressure drop was found to be slightly lower and the heat transfer was much better than in the circular tube.

本文言語英語
ページ(範囲)966-975
ページ数10
ジャーナルHeat Transfer Engineering
34
11-12
DOI
出版ステータス出版済み - 9 26 2013

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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