Hydrogen–Methane Blending in Gas Turbine Combustion Chambers: NOx and CO Emissions, Flame Stabilization, and Thermodynamic Integration with Combined-Cycle Power Plants
ガスタービン燃焼器における水素-メタン混合：NOxおよびCO排出、火炎安定性、コンバインドサイクル発電所との熱力学的統合 (AI 翻訳)
Abay Mukhamediyarovich Dostiyarov, Abat Zhumagaliyev, Alisher Teltay, Ermekkyzy Diana, Maxat Arganatovich Anuarbekov
🤖 gxceed AI 要約
日本語
本論文は、ガスタービン燃焼器における水素-メタン混合燃焼の実験と熱力学解析を組み合わせた研究。240条件の実験で、水素割合0～40%でのNOx・CO排出と火炎安定性を評価し、水素10%増加ごとにNOxが23～24%増加、COが最大28.5%減少することを示した。また、有機ランキンサイクルと補助水素燃焼を組み合わせることで、CO2排出を7.5～10%削減し、正味効率を0.79～4.0%向上できることを確認。最適運転範囲（水素20～30%、当量比0.5～0.7、スワールベーン角45°）を提唱している。
English
This paper combines experimental and thermodynamic analyses of H2-CH4 combustion in gas turbine combustors. Experiments across 240 conditions show each 10% H2 increase raises NOx by 23-24% and reduces CO by up to 28.5%, while improving lean blowout stability by 32-46%. Integrating an ORC and supplementary H2 firing cuts CO2 by 7.5-10% and raises net efficiency by 0.79-4.0 percentage points. An optimal window of γ=20-30%, φ=0.5-0.7, 45° vane angle is identified.
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
日本は水素・アンモニア混焼火力の実用化を推進しており、本論文の系統的な実験データは、国内のガスタービン運用におけるNOx排出と効率のトレードオフ理解に直接貢献する。特に、既存火力発電所への水素混焼導入検討において、実用的な運転条件の指針を提供する。
In the global GX context
Globally, hydrogen co-firing in gas turbines is a key near-term decarbonization pathway. This paper provides systematic experimental data on emissions and stability trade-offs, plus thermodynamic integration with ORC, offering valuable benchmarks for power plant operators and turbine manufacturers transitioning to hydrogen blends.
👥 読者別の含意
🔬研究者:Provides detailed experimental data and thermodynamic analysis for H2-CH4 combustion in gas turbines, useful for model validation and design optimization.
🏢実務担当者:Offers practical operating windows (H2 20-30%, φ 0.5-0.7) and emission trends for tuning existing gas turbines for hydrogen co-firing.
🏛政策担当者:Highlights the feasibility and emission trade-offs of hydrogen co-firing, informing decarbonization policy and support for hydrogen infrastructure.
📄 Abstract（原文）
The global push for low-carbon electricity generation has made hydrogen-enriched natural gas an attractive near-term decarbonization option. This paper combines experimental and thermodynamic analyses of H2–CH4 combustion in gas turbine combustion chambers. Experiments were conducted on a patented two-stage swirl burner across 240 operating conditions. The effects of hydrogen fraction (γ = 0–40%), swirler vane angle (30°, 45°, 60°), equivalence ratio (φ = 0.17–1.00), and fuel injection strategy were measured against NOx and CO emissions and lean blowout stability. Each 10% increase in hydrogen content raised NOx by 23–24% via the Zel’dovich thermal mechanism, while CO fell by up to 28.5% at φ = 0.3 and 60° due to enhanced OH-radical activity. The minimum recorded NOx was 12.08 ppm (Type 2 injection, 30°, γ = 0%, φ = 0.3). Hydrogen addition improved lean blowout stability by 32–46% per 10% H2. A parallel thermodynamic analysis showed that integrating an organic Rankine cycle (ORC) and supplementary H2–CH4 firing in the heat recovery steam generator cuts specific CO2 emissions by 7.5–10% and raises net efficiency by 0.79–4.0 percentage points. Critical comparison with 28 published studies identified an optimal operating window: γ = 20–30%, φ = 0.5–0.7, 45° vane angle (SW = 0.8).
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.3390/en19112710first seen 2026-06-16 05:31:10
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