Comparative thermodynamic assessment of renewable production pathways efficiency for methane, methanol and ammonia fuels
メタン、メタノール、アンモニア燃料の再生可能エネルギー生産経路効率の比較熱力学的評価 (AI 翻訳)
Panagiotis Karvounis, Γεράσιμος Θεοτοκάτος, Osman Turan
🤖 gxceed AI 要約
日本語
本論文は、船舶用代替燃料として注目されるメタン、メタノール、アンモニアの再生可能エネルギーを利用した製造プロセスを熱力学的に比較。第二法則効率はそれぞれ29.2%、32.7%、30.9%であり、主な不可逆性は水素電解に起因する。結果は船舶脱炭素戦略の最適化と政策決定に貢献する。
English
This paper presents a thermodynamic comparison of renewable production pathways for methane, methanol, and ammonia as shipping fuels. The second-law efficiencies are 29.2%, 32.7%, and 30.9%, with electrolysis as the main source of irreversibility. The findings support system optimization and evidence-based policymaking for maritime decarbonization.
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
日本は海運大国であり、本論文が示すe-fuelの効率比較は、日本の海事脱炭素戦略や水素関連政策に直接活用できる。特にSSBJやグリーン成長戦略におけるe-fuel導入検討の基礎資料となる。
In the global GX context
This study provides critical efficiency benchmarks for e-fuels, relevant to global maritime decarbonization under IMO targets and the EU FuelEU Maritime initiative. It fills a gap in comparative thermodynamic data, aiding policymakers and industry in selecting sustainable fuel pathways.
👥 読者別の含意
🔬研究者:Provides a first-of-its-kind comparative efficiency assessment of e-fuels, useful for further optimization and life-cycle analysis.
🏢実務担当者:Informs fuel procurement and technology choices for shipping companies evaluating alternative fuel pathways.
🏛政策担当者:Offers empirical data to support evidence-based regulations and incentives for e-fuel adoption in maritime decarbonization.
📄 Abstract（原文）
The use of alternative fuels such as methane, methanol and ammonia is quintessential for the shipping decarbonisation. However, to minimise their carbon footprint and achieve net-zero targets, these fuels production must involve energy from renewable sources. This study aims to perform a comparative thermodynamic assessment of methane, methanol, and ammonia production pathways using renewable energy, determining the efficiencies of the renewable electric power conversion to chemical fuel power. The methodological approach defines the fuels production process boundaries and considers both electrical and thermal power demands to identify the dominant sources of irreversibility. A thermodynamic approach is applied considering the e-fuel production of 1000 kg, along with the inflows of energy, compounds and chemical reactions for each e-fuel. The required input parameters for the involved chemical conversion processes are identified by thorough literature review. The results demonstrate that the second-law efficiency for e-methane, e-methanol and e-ammonia production is 29.2%, 32.7% and 30.9%, respectively. Most irreversibilities occur due to the electrolysis required to produce the hydrogen feedstock. The derived results are used to discuss the e-fuels suitability for shipping, supporting system optimisation, and evidence-based decision-making for maritime decarbonisation strategies, while informing stakeholders and policy makers, hence providing a first-of-its-kind input to policymakers pertaining to the e-fuels production insights.
🔗 Provenance — このレコードを発見したソース
- openalex https://strathprints.strath.ac.uk/view/author/1404226.html>first seen 2026-07-02 05:05:04
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