書誌事項
- タイトル別名
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- Experimental Investigation on Heat Transfer Performance of Finless Flat Tube Heat Exchanger for Refrigerator under Frost Condition
- レイトウキヨウ フィンレスフラットチューブ ネツコウカンキ ノ チャクソウ カ ノ デンネツ セイノウ ニ カンスル ジッケンテキ ケントウ
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Frost formation on the air-side surface of the air-to-refrigerant heat exchanger reduces heat transfer performance in many refrigeration systems. Typically, the design of fin-and-tube heat exchangers having large fin pitch is used because of tolerance to frost growth. In this study, a design concept of finless tube heat exchanger, which is composed of only flat tubes, was proposed for achieving high performance instead of such design of fin-and-tube heat exchangers. Heat transfer and pressure drop performance were measured to evaluate the effectiveness of the proposed heat exchanger under frosting conditions. The effects of inlet air velocity and inlet air temperature were investigated. Furthermore, the heat transfer performance of the proposed exchanger was compared with that of the fin-and-tube heat exchanger. The results showed that the heat transfer performance became much higher for the case of proposed heat exchanger compared with that for the case of fin-and-tube heat exchanger in terms of heat transfer rate per unit temperature and pressure drop penalty under no-frost and frost conditions.
収録刊行物
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- 日本冷凍空調学会論文集
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日本冷凍空調学会論文集 31 (2), 187-198, 2014
公益社団法人 日本冷凍空調学会
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詳細情報 詳細情報について
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- CRID
- 1390001204665828992
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- NII論文ID
- 130005085251
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- NII書誌ID
- AA11125910
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- ISSN
- 2185789X
- 13444905
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- NDL書誌ID
- 025631000
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可