Fluid-Driven Opposed-Piston Pumps for Dense-Phase CO2 Injection: Direct Force Coupling and Energy Efficiency Analysis
高密度CO2圧入用流体駆動対向ピストンポンプ：直接力連成とエネルギー効率解析 (AI 翻訳)
Xiaoyu Wang, Hongtao Chen, H. Liang, Yang Liu, Zhanheng Ma, Haibo Lin, Wanchun Sun
🤖 gxceed AI 要約
日本語
CCUSバリューチェーンにおける高密度CO2圧入の省エネ化を目的に、対向ピストン式往復動ポンプの構造最適化を提案。入口圧力を補助推力に変換する力連成モデルを構築し、シミュレーションと実機データにより従来比31.39%の駆動油圧低減、平均比エネルギー消費0.422kWh/(MPa·m3)を達成した。
English
This paper optimizes a hydraulically driven opposed-piston reciprocating pump for dense-phase CO2 injection in CCUS. By converting inlet pressure into auxiliary thrust, the design reduces peak driving oil pressure by 31.39% and achieves an average specific energy consumption of 0.422 kWh/(MPa·m3) in field tests.
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CCUSの実証・商業化を推進中であり、本研究成果は高圧CO2輸送・圧入のエネルギーコスト低減に直接寄与する。SSBJ等の開示枠組みでもCCUSは注目テーマであり、技術優位性の説明材料として有用。
In the global GX context
Globally, CCUS is a critical decarbonization pathway. This pump efficiency improvement directly reduces operational energy and cost for CO2 injection, supporting the economic viability of CCUS projects under various disclosure frameworks (e.g., TCFD, ISSB) that value technology-driven emission reductions.
👥 読者別の含意
🔬研究者:Provides a validated dynamic model and optimization method for opposed-piston pump design in dense-phase CO2 applications.
🏢実務担当者:Offers a proven pump configuration that can lower energy consumption and operating costs in CCUS injection systems.
🏛政策担当者:Demonstrates technology advancement that can improve the economic feasibility of CCUS, supporting policy incentives for deployment.
📄 Abstract（原文）
Large-scale dense-phase carbon dioxide (CO2) injection is an energy-intensive process in the carbon capture, utilization, and storage (CCUS) value chain. To address insufficient utilization of inlet pressure potential energy and sealing/friction losses of conventional reciprocating pumps under high-base-pressure dense-phase CO2 transport conditions, this study develops a dense-phase CO2-oriented structural optimization scheme for a hydraulically driven opposed-piston reciprocating pump based on force-coupling. A dynamic model was established to clarify the in situ recovery mechanism by which inlet pressure potential energy is converted into auxiliary thrust, enabling the drive load to shift from absolute pressure to net pressure difference. Simulation results show that under the rated 8 MPa inlet and 25 MPa discharge condition, the optimized opposed-piston configuration reduces peak driving oil pressure by 31.39% compared with the non-opposed reference configuration. Field reliability operation data show an average normalized specific energy consumption of 0.422 kWh/(MPa·m3) during the selected 24 h continuous operating period. The optimized configuration improves inlet-pressure utilization and reduces hydraulic power demand under high-base-pressure dense-phase CO2 injection conditions, providing theoretical support and engineering reference for low-energy CCUS injection systems.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/en19122886first seen 2026-06-21 05:57:50
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