超臨界CO2酸素燃焼用着火システムの開発と試験
Ignition System Development and Test for Supercritical CO2 Oxycombustion (原題)
Daniele Possanzini, A. Zucca, M. Provenzale, P. C. Nassini, E. De Leo
🤖 gxceed AI 要約
日本語
CO2回収と高効率発電を両立するAllamサイクル（酸素燃焼プロセス）の実用化に向け、高温高圧という過酷条件下で信頼性高く作動するレーザー式着火装置を提案・開発した研究。装置の設計上の特徴、健全性モニタリング手法、30barg未満での燃焼試験結果を報告し、着火後も機能を維持できる耐久性と、自己着火温度を超えるホットスポット生成による代替着火方式も検討している。
English
This study develops a laser-based ignition device for the Allam cycle, an oxy-combustion process combining efficient power generation with CO2 capture under high-pressure, high-temperature conditions. It details design features, integrity monitoring, plasma characterization, and combustion tests below 30 barg, identifying ignition conditions with the highest success rate and assessing post-ignition durability. An alternative hot-spot approach exceeding autoignition temperature is also discussed.
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
CCUSは日本のGX実現に向けた重要技術であり、特に発電分野でのCO2回収型燃焼技術の信頼性向上は、エネルギー転換政策や産業脱炭素化の実装可能性を左右する。国内の火力発電・重工業の脱炭素化ロードマップに関わる技術的知見として読める。
In the global GX context
Oxy-combustion with integrated CO2 capture is central to global net-zero power strategies and hard-to-abate decarbonization. Reliable ignition under supercritical conditions addresses a key engineering barrier to scaling Allam-cycle plants, informing transition pathways and CCUS deployment under frameworks like EU ETS and national decarbonization mandates.
👥 読者別の含意
🔬研究者:過酷条件下でのレーザー着火とプラズマ特性の実証データは、CO2回収型燃焼の信頼性設計研究に有用。
🏢実務担当者:Allamサイクル採用を検討する発電・エンジニアリング企業が着火系の技術リスクと設計要件を把握する材料になる。
🏛政策担当者:CCUS・回収型発電の実装可能性を評価する際の技術的成熟度の参考になる。
📄 Abstract（原文）
In the current global context, where reducing greenhouse gas emissions is a priority, the energy sector faces increasing pressure to adopt sustainable solutions. Carbon capture and storage is expected to play a pivotal role in reducing CO2 emissions from power generation, with oxy-combustion emerging as one of the most promising technologies for combining low emissions with high performance. The Allam cycle, an innovative oxy-combustion-based process, integrates efficient power generation with CO2 capture. However, its high-pressure and high-temperature conditions present significant technical challenges, particularly in identifying a reliable ignition device for initiating combustion. This article proposes a laser-based ignition device designed to withstand harsh process conditions. Key design features, system integrity monitoring strategies, and specific solutions for high-pressure and high-temperature environments are detailed. The study also analyzes the characteristics of the generated plasma and presents results from combustion tests conducted at pressure below 30 barg. System performance is evaluated, highlighting the ignition conditions that have achieved the highest success rate for reliable operation. The study will also analyze the behavior of the ignition system after ignition occurs, to investigate its capability to withstand combustion conditions without losing functionality or compromising overall system integrity, a key requirement for applying the ignition system in industrial-scale applications. The study will also discuss an alternative approach based on the creation of a hot spot inside the combustion chamber to generate a temperature higher than the autoignition.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1115/gt2026-176494first seen 2026-10-23 06:03:58 · last seen 2026-11-04 05:38:20
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