Combustion and flame characteristics of hydrogen-diesel dual-fuel in a model gas turbine combustor using image processing technique
FUEL, cilt.428, 2027 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 428
- Basım Tarihi: 2027
- Doi Numarası: 10.1016/j.fuel.2026.140241
- Dergi Adı: FUEL
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Erciyes Üniversitesi Adresli: Evet
Özet
The dual-fuel use of hydrogen in existing energy systems contributes to reduced emissions and improved combustion performance. In this study, the combustion characteristics of pure diesel and hydrogen-diesel dual-fuel mixtures were experimentally investigated in a model gas turbine combustion chamber. Experiments were conducted at a constant thermal power of 3 kW, with two equivalence ratios (phi = 0.85 and 1.0) and two swirl numbers (0.6 and 1.0). Flame images were quantitatively analyzed through RGB (red-green-blue) intensity changes using image processing. Hydrogen addition significantly affected flame structure, temperature distribution, and emissions. It enhanced flame stability and reactivity, increasing the temperature by 46.5 % under conditions of Sw = 0.6 and phi = 0.85. Finally, hydrogen addition resulted in 64-75 % reduction in NOx, up to 75 % reduction in CO, 77.66 % reduction in SO2, and a 29.4 % decrease in exhaust O2 concentration.