Condensation of R134a in a Staggered Bundle of Horizontal Finned Tubes
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- Honda Hiroshi
- Institute of Advanced Material Study Kyushu University
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- Takata Nobuo
- Institute of Advanced Material Study Kyushu University
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- Takamatsu Hiroshi
- Institute of Advanced Material Study Kyushu University
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- Kim Jeongsik
- Interdisciplinary Graduate School of Engineering Sciences Kyushu University
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- Usami Keiichiro
- Interdisciplinary Graduate School of Engineering Sciences Kyushu University
Bibliographic Information
- Other Title
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- 冷媒R134aの千鳥配列フィン付き管群内凝縮
- レイバイ R134a ノ チドリ ハイレツ フィン ツキ カングン ナイ ギョウシュク
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Abstract
Experimental results are presented that show the effect of fin geometry on the condensation of refrigerant R134a in a staggered bundle of horizontal finned tubes. Two types of conventional low-fin tubes and three types of three-dimensional fin tubes were tested. The refrigerant mass velocity ranged from 8 to 23kg/m^2s and the condensation temperature difference from 1.5 to 12K. In most cases, the highest performance was obtained by one of the three-dimensional fin tubes. In the case of high mass velocity and high film Reynolds number, however, the highest performance was obtained by one of the low-fin tubes. The results were compared with previous experimental results for bundles of smooth tubes and low-fin tubes.
Journal
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- 九州大学機能物質科学研究所報告
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九州大学機能物質科学研究所報告 14 (1), 1-6, 2000-07-01
Institute of Advanced Material Study Kyushu University
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Details 詳細情報について
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- CRID
- 1390009224835541504
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- NII Article ID
- 110006177563
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- NII Book ID
- AN10060378
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- ISSN
- 09143793
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- DOI
- 10.15017/7914
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- HANDLE
- 2324/7914
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- NDL BIB ID
- 5466494
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Allowed