Prediction of Heat Transfer Characteristics of Binary Refrigerant Mixtures in a Plate-Fin Condenser
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- YARA Tomoyasu
- Okinawa National College of Technology
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- KOYAMA Shigeru
- Faculty of Engineering Sciences, Kyushu University
Bibliographic Information
- Other Title
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- 二成分混合冷媒のプレートフィン凝縮器内での伝熱特性の予測計算法
- 二成分混合冷煤のプレートフィン凝縮器内での伝熱特性の予測計算法
- 2セイブン コンゴウレイバイ ノ プレート フィン ギョウシュクキ ナイ デ ノ デンネツ トクセイ ノ ヨソク ケイサンホウ
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Abstract
The heat transfer characteristics of binary refrigerant mixtures in a plate-fin condenser are experimentally investigated using a vapor compression heat transformer, in which binary refrigerant mixtures of R 134a/ R 123 are used as the working fluid and water is used as both heat sink and source. Pure refrigerants of R 22 and R 134a are also tested as the working fluid. The experimental ranges of heat flux and mass velocity are from 2 to 20 kW/m2 and from 50 to 100 kg/m2s, respectively. The heat transfer characteristics of the condensation and vapor single-phase flow of pure and mixed refrigerants are discussed, and empirical correlation equations of the condensate heat transfer and vapor single-phase heat transfer are proposed. The correlation equation of water-side heat transfer is also presented. Combining these correlation equations with a correlation equation of vapor mass transfer based on the Chilton-Colburn analogy, a prediction model for condensation of the binary refrigerant mixtures in a plate-fin heat exchanger is developed based on the assumption that the phase equilibrium is only established at the vapor-liquid interface. The calculation results for the pure and mixed refrigerants agree well with the present experimental data. The mass transfer characteristics are also revealed from the calculation results.
Journal
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- Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers
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Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers 23 (3), 187-197, 2006
Japan Society of Refrigerating and Air Conditioning Engineers
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Details 詳細情報について
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- CRID
- 1390282679642838272
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- NII Article ID
- 10020358932
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- NII Book ID
- AA11125910
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- ISSN
- 2185789X
- 13444905
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- NDL BIB ID
- 8532263
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed