書誌事項
- タイトル別名
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- An Effect of a Horizontal Buoyant Jet on the Temperature Distribution inside a Hot Water Storage Tank
- 貯湯タンク中間部へ正負の浮力噴流が流入する場合の温度分布予測方法(第3報)噴流高さ近傍に初期温度勾配がある系
- チョトウ タンク チュウカンブ エ セイフ ノ フリョク フンリュウ ガ リュウニュウ スル バアイ ノ オンド ブンプ ヨソク ホウホウ(ダイ3ポウ)フンリュウ タカサ キンボウ ニ ショキ オンド コウバイ ガ アル ケイ
- Third Report : Influence of Temperature Gradient around Horizontal Jet Height
- 第３報「噴流高さ近傍に温度勾配がある系」
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説明
In the first and second reports, visualization experiments were performed using tracer particles and thermo-sensitive liquid crystals. Experiments were also carried out to find the unsteady temperature distribution in a tank when the positively or negatively buoyant jet was injected horizontally in the middle of the tank. One dimensional model for simulating temperature distribution was proposed. The model had applicability to a basic initially uniformed tank temperature. But, by considering an actual equipment, there is a temperature gradient around the jet nozzle, and mixing process is more complicated. In this report, the model was applied for the case of having a temperature gradient around the horizontal jet height. And a modified model, “non-uniformly mixing model" was proposed, which was considered with a vertically mixing process by applying a cubic function for a mixing region. The mixing region was determined by a buoyancy force and a vortex near the wall. The performance of the model was verified by comparing the results with the unsteady temperature distribution obtained experimentally. The model was also compared with the measurements obtained using a commercially available hot water storage system. Both results showed good agreements. Hence adequacy of the model was clarified.
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 29 (1), 43-51, 2012
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
- 1390001204667644800
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- NII論文ID
- 10030574160
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- NII書誌ID
- AA11125910
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- ISSN
- 2185789X
- 13444905
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- NDL書誌ID
- 023653096
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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
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- 抄録ライセンスフラグ
- 使用不可