書誌事項
- タイトル別名
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- Simulation on Vapor Flow in the Absorber/Evaporator of an Absorption Chiller
- 吸収冷凍機における吸収器・蒸発器内の蒸気流に関する数値シミュレーション
- キュウシュウ レイトウキ ニ オケル キュウシュウキ ジョウハツキ ナイ ノ ジョウキリュウ ニ カンスル スウチ シミュレーション
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説明
Two-dimensional numerical computation methodology for vapor flow in the absorber/ evaporator in an absorption chiller has been suggested and the effect of pitch ratio of cylinders in the absorber/evaporator has been discussed. Pseudo-diffusion effects of surfactants added to lithium bromide solution flowing along cylinders in the absorber were considered into liquid film model suggested in the previous study. From the results, the present model was found to agree well with experimental data in a rather wide range of the pressure in the present system. The present model effectively reduces the computational load for vapor flow in the absorber/evaporator including 176 cylinders. Near the top and bottom walls of the absorber/evaporator, the high velocity regions were observed and the recirculating regions were also found to be formed just inside of the high velocity regions. This high velocity region is intensified with pitch-to-diameter ratio decrease because the vapor flow penetrating from the back side of the absorber increases for the pressure drop increase of front side of the absorber.
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 20 (3), 325-331, 2003
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
- 1390282679642941952
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- NII論文ID
- 130004565993
- 10011726054
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- NII書誌ID
- AA11125910
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- ISSN
- 2185789X
- 13444905
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- NDL書誌ID
- 6700146
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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