Energy and power transition in green aviation: Current status and prospects of synergistic development of alternative fuels and propulsion technologies
グリーン航空におけるエネルギーと動力の転換：代替燃料と推進技術の相乗的発展の現状と展望 (AI 翻訳)
Chengjie Li, Bin Yu, Chan HA, Yongbin JI, Yuxuan WAN, Xinyang JIANG, Xiaoran LUO, Zhichao CHEN, Yu Zhao, Yuanyuan ZHENG, Jiang Qin
🤖 gxceed AI 要約
日本語
本レビューは、カーボンニュートラル航空実現に向けた代替燃料と推進システムの相乗的発展を包括的に分析。リチウム電池、SAF、水素燃料電池、水素ガスタービン、アンモニア・メタノールなどの水素キャリアを比較し、水素ベース燃料が近〜中期の移行解として有望と指摘。複合システムレベルエネルギー密度指標を新たに導入し、技術ロードマップとして2030年代半ばにリージョナル航空へ水素展開、2050年に長距離へSAF・水素タービンを見込む。
English
This review comprehensively analyzes synergistic development of alternative fuels and propulsion for carbon-neutral aviation. It compares lithium batteries, SAF, hydrogen fuel cells, hydrogen turbines, and hydrogen carriers, highlighting hydrogen-based fuels as viable near-to-mid-term solutions. A novel composite system-level energy density metric is introduced. A phased roadmap is proposed: battery-electric for short-range eVTOLs, hydrogen for regional aviation by mid-2030s, SAF and hydrogen turbines for long-haul by 2050.
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
本レビューは日本の航空脱炭素戦略（航空機燃料のSAF代替、水素航空機開発）に直接関連。特に日本政府が2023年に策定した「航空燃料安定供給・脱炭素化に向けた工程表」や、ANA・JALのSAF導入目標に対する技術的裏付けを提供する。
In the global GX context
This review provides a global perspective on aviation decarbonization, relevant to ICAO's net-zero 2050 goal and national strategies. The proposed framework for evaluating fuel-propulsion systems can inform ISSB-aligned climate transition plans and technology investment decisions.
👥 読者別の含意
🔬研究者:Provides a holistic, system-level framework for comparing fuel-propulsion technologies, with a new energy density metric.
🏢実務担当者:Offers a technology roadmap and identifies key barriers (cost, infrastructure) for developing sustainable aviation fuel and hydrogen propulsion strategies.
🏛政策担当者:Highlights the need for adaptive policy support and cross-sector collaboration to enable phased commercialization of green aviation technologies.
📄 Abstract（原文）
This review comprehensively analyzes the synergistic development of alternative fuels and propulsion systems for achieving carbon-neutral aviation. It details the current status, comparative advantages, and challenges of key technologies: lithium battery-powered electric propulsion, Sustainable Aviation Fuels (SAF), hydrogen fuel cells, hydrogen gas turbines, and hydrogen-based carriers like ammonia and methanol. The paper highlights hydrogen-based fuels as viable near- to mid-term transition solutions due to their favorable volumetric energy density and simpler logistics compared to gaseous hydrogen. A significant contribution is the introduction of a composite system-level energy density metric, which jointly evaluates fuel energy and propulsion system specific power/efficiency, providing a more holistic framework for assessing next-generation aircraft performance. Major identified barriers encompass high fuel costs, underdeveloped supply infrastructure, and complex fuel-power system integration. The review concludes that successful decarbonization necessitates parallel development across multiple technology pathways, strengthened interdisciplinary collaboration, and robust, adaptive policy support. A phased commercialization roadmap is proposed, foreseeing battery-electric power for short-range eVTOLs first, followed by hydrogen fuel cells and hydrogen-based fuels for regional aviation by the mid-2030s, with SAF and hydrogen turbines scaling up for long-haul operations toward 2050.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.cja.2026.104322first seen 2026-06-25 04:54:25
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