Numerical Analysis of Re-liquefaction System for Liquefied CO 2
液化CO2再液化システムの数値解析 (AI 翻訳)
D. Han, Sunho Park
🤖 gxceed AI 要約
日本語
本研究では、液化CO2の輸送・貯蔵中に発生するボイルオフガスを再液化するシステムを数値解析。熱流体シミュレーションにより、貯蔵タンクとセパレータの圧力制御が効果的に維持できることを確認。定常運転時、約4.5 kg/sのCO2を処理し、約75%が再液化に成功。熱力学的安定性が実証され、CCUSの海洋CO2輸送システム設計に貢献。
English
This study numerically analyzes a re-liquefaction system for boil-off gas from liquefied CO2 during transport and storage. Using one-dimensional thermal-fluid simulations (Thermal Desktop), it confirms stable pressure control and achieves about 75% re-liquefaction of 4.5 kg/s CO2. The results demonstrate thermodynamic stability, supporting CCUS-based marine CO2 transport system design.
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
日本はGX政策でCCUSを重要技術と位置付け、海洋CO2輸送の実証を進めている。本解析結果は、CO2液化・再液化プロセスの設計最適化に直接的な知見を提供し、日本のCCUSバリューチェーン構築に貢献する。
In the global GX context
CCUS is a key pillar of global net-zero strategies. This numerical study addresses a critical technical challenge for marine CO2 transport, providing insights for system design and operational stability that are relevant to CCUS projects worldwide, including those under the IEA and IPCC frameworks.
👥 読者別の含意
🔬研究者:Provides a validated simulation methodology for LCO2 re-liquefaction that can be extended to optimize system design.
🏢実務担当者:Offers design parameters and performance data for LCO2 re-liquefaction systems, useful for CCUS transport infrastructure.
📄 Abstract（原文）
: Carbon capture, utilization, and storage (CCUS) has emerged as a key strategy for achieving net-zero greenhouse gas (GHG) emissions. In this context, the transportation of carbon dioxide (CO 2 ) in liquid form is essential, requiring a re-liquefaction system to recondense the boil-off gas (BOG) generated during transport and storage. This study numerically investigates the thermal-fluid performance and operational stability of a liquefied carbon dioxide (LCO 2 ) re-liquefaction system. One-dimensional thermal-fluid simulations were performed using Thermal Desktop (SINDA/FLUINT). The system model incorporated heat transfer mechanisms-conduction, convection, and radiation-as well as phase-change phenomena. Fluid properties were obtained from the NIST REFPROP database to ensure accurate representation under real operating conditions. The results indicate that periodic pressure control of both the storage tank and separator can be effectively maintained. During steady operation, approximately 4.5 kg/s of CO 2 was processed, with about 75% successfully re-liquefied, primarily limited by throttling losses at the expansion valve. These findings confirm the thermodynamic stability of the proposed LCO 2 re-liquefaction system and provide a foundation for future design optimization and validation of CCUS-based marine CO 2 transport systems
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.26748/ksoe.2025.068first seen 2026-05-06 00:02:30
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。