トルコ火力発電所における低率水素混焼：熱力学・環境・経済的影響
Low-level hydrogen co-firing in turkish thermal power plants: thermodynamic, environmental, and economic impacts (原題)
Zeliha Kırılmış Öztürkten, I. Alagoz, S. Mert, Javad Rahebi
🤖 gxceed AI 要約
日本語
トルコの天然ガス複合発電（NGCC）と褐炭火力を対象に、1〜10%の低率水素混焼を熱力学・環境・経済の三面で評価した初の研究。5%混焼でCO₂はNGCCで13.6%、褐炭で32.5%削減され、SOx・PMも約32%減る。NOxは水素1%あたり約6ppm増加し対策が必要。褐炭はLCOEが15.4%上昇するが炭素価格約50ドル/tで競合し、補助金や安全基準などの政策提言を行う。
English
First assessment of low-level hydrogen co-firing (1–10%) in both Turkey's NGCC and lignite plants under its 2053 net-zero framework. At 5% blending, CO2 falls 13.6% (NGCC) and 32.5% (lignite), with SOx/PM down ~32%; NOx rises ~6 ppm per 1% H2. NGCC LCOE drops 4.3% while lignite LCOE rises 15.4% but becomes competitive near $50/t CO2, supporting subsidy and safety-standard recommendations.
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
日本でも水素混焼は電源脱炭素の現実的選択肢として実証が進むが、本論文はLCOE・炭素価格感応度・NOx増加の定量関係を示し、国内火力の混焼計画や水素調達コスト試算の参照値として有用。
In the global GX context
Hydrogen co-firing is a transitional lever under EU Green Deal and global net-zero pathways; this paper quantifies the LCOE/carbon-price trade-off and air-quality penalty (NOx), informing transition-finance and disclosure of residual emissions in thermal portfolios.
👥 読者別の含意
🔬研究者:水素混焼の熱力学・エクセルギー・LCOEを統合評価した定量ベースラインとして参照できる。
🏢実務担当者:自社火力での混焼率ごとのCO₂削減量・LCOE変化・NOx対策コストの試算に活用できる。
🏛政策担当者:水素混焼普及には補助金・安全基準・炭素価格設計が鍵となることを示す。
📄 Abstract（原文）
This study evaluates low-level hydrogen co-firing (1%, 3%, 5% and 10% by mass) in Turkey’s natural gas combined cycle (NGCC) and lignite-fired power plants to support the European Green Deal and Turkey’s 2053 net-zero target. It is the first to assess hydrogen blending in both NGCC and lignite systems under Turkey’s energy policy framework. Utilizing thermodynamic models in Engineering Equation Solver (EES) for Brayton–Rankine (NGCC) and Rankine (lignite) cycles, with ~ 1650 °C turbine inlet temperatures and constant thermal input, we analyze energy, exergy, emissions (CO₂, NOx, SOx, PM, CO), and levelized cost of electricity (LCOE). Green hydrogen (10 kg CO₂/kg H₂ upstream emissions) ensures zero direct CO₂ emissions. At 5% hydrogen, CO₂ emissions drop by 13.6% (NGCC) and 32.5% (lignite), with lignite demonstrating ~ 32% reductions in SOx and PM and ~ 10% in CO. NGCC exergy efficiency rises by 1.55 points, and lignite boiler exergy destruction falls by 20%, despite minor energy efficiency losses. NOx increases by ~ 6 ppm per 1% hydrogen, requiring mitigation. NGCC LCOE decreases by 4.3% at 5% blending ($2/kg H₂), while lignite LCOE rises by 15.4% but becomes competitive at ~$50/t CO₂. Challenges include hydrogen production and infrastructure. Policy recommendations include subsidies, safety standards, and supply chain investments to ensure viability and air quality compliance.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1038/s41598-026-63396-0first seen 2026-10-27 05:17:04 · last seen 2026-11-06 05:17:54
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