書誌事項
- タイトル別名
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- Advanced CO_2 dilution technology for ocean CO_2 sequestration
抄録
CO_2 sequestration in the ocean would be a highly advanced counter-measure to global warming if biological impact induced by CO_2 dissolution into ocean water is sufficiently small. Releasing liquid CO_2 droplets from a pipe towed by a ship is effective because of dilution due to the moving release point. If liquid CO_2 droplet sizes are controlled, dissolution into ocean water while rising up due to buoyancy, would take a long distance, which leads to vertical dilution. Dilution could be enhanced by a multi-nozzle array placed in the direction of ship width. Here we show that CO_2 dilution could be effectively further promoted by dispersing liquid CO_2 droplets horizontally by a turbulent wake formed by bodies placed at upper part of the multi-nozzle array. Turbulence formed at the downstream of the bodies could enlarge the width of rising liquid CO_2 droplets by turbulent mixing between sea water and droplets. We made a measurement of flow and statistical turbulent properties needed for numerical simulation behind a body. Based on the measured data, CO_2 enhanced dilution was simulated. Increase of partial CO_2 pressureand acidification are drastically decreased as compared with the case without dilution.
収録刊行物
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- 熱工学コンファレンス講演論文集
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熱工学コンファレンス講演論文集 2004 (0), 165-166, 2004
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680857229696
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- NII論文ID
- 110004057953
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- ISSN
- 2424290X
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可