Numerical Investigation of Micro-Scale Mass Transfer in Stretched and Compressed Kelvin-Cell Packings for Shipboard Carbon Capture
船舶用炭素回収における伸長・圧縮ケルビンセル充填物の微視的物質移動の数値解析 (AI 翻訳)
Bohao Wu, N. Wu, Yongqi Li, Ying Bi, Daan Cui, Haoheng Liu, Chao Chang, Yulong Ji
🤖 gxceed AI 要約
日本語
本研究は、船舶用CCUSのための化学吸収塔内充填物として、軸方向に伸長・圧縮したケルビンセルにおける微視的な流動と物質移動をCFD解析した。伸長セルでは柱状流、圧縮セルでは安定した中空円筒液膜が形成され、セルサイズと空隙率の低減が物質移動効率を向上させることを示した。船舶用コンパクト充填物の設計指針を提供する。
English
This study uses CFD to investigate microscale flow and mass transfer in Kelvin cells for shipboard CCUS. Elongated cells induce columnar flow, while compressed cells promote stable hollow cylindrical liquid films, enhancing mass transfer. Reducing cell size and porosity improves efficiency. Findings guide compact packing design for shipboard carbon capture.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の海運業界では、IMOの温室効果ガス削減目標に対応するため船舶用CCUS技術の開発が急務である。本研究は、限られた縦方向空間での吸収塔設計に資する充填物形状の最適化を示唆し、日本企業の省スペース型CCUS実装に貢献し得る。
In the global GX context
Shipboard carbon capture is critical for decarbonizing maritime transport, a sector under pressure from IMO targets. This study offers design principles for compact packings that fit within ships' limited vertical space, relevant to global CCUS deployment in hard-to-abate sectors.
👥 読者別の含意
🔬研究者:Provides CFD-based insight into how cell geometry alters gas–liquid mass transfer in structured packings, useful for further optimization.
🏢実務担当者:Offers design guidelines for compact column packings in shipboard CCUS, potentially improving capture efficiency in space-constrained installations.
📄 Abstract（原文）
For shipboard CCUS facilities, the integration of chemical absorption columns is constrained by a limited vertical envelope, which motivates packings with axially stretched or compressed Kelvin cells to support compact layout and flow control. This study employs computational fluid dynamics to investigate microscale flow and mass transfer characteristics in Kelvin cells. A comparison among the regular Kelvin cell (RKC), the vertically elongated Kelvin cell (VEKC), and the vertically compressed Kelvin cell (VCKC) indicates that axial stretching and compression modify internal flow distributions and gas–liquid mass transfer during CO2 absorption. The liquid distribution transitions from a film along the struts with localized accumulation at the nodes in RKC to a continuous columnar stream in VEKC, and then to a stable hollow cylindrical liquid film promoted by lateral redistribution in VCKC. VCKC promotes a stable and expanded liquid film, whereas VEKC tends to induce columnar flow. Reducing the cell size and porosity improves mass transfer efficiency, and the liquid load governs mass transfer flux. These findings provide theoretical guidance for the design and optimization of compact packings for process intensification in shipboard carbon-capture applications.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/jmse14070595first seen 2026-05-05 23:35:24
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