Modelling of the gas-turbine colorless distributed combustion: An application to hydrogen enriched – kerosene fuel
| Autor: | Serhat Karyeyen, Osman Kumuk, Mustafa Ilbas |
|---|---|
| Přispěvatelé: | İskenderun Meslek Yüksekokulu -- İnsansız Hava Aracı Teknolojisi ve Operatörlüğü Bölümü, Kümük, Osman |
| Rok vydání: | 2022 |
| Předmět: |
Combustion Chambers
Uniform temperature Materials science Hydrogen Combustion Jet Flames Energy Engineering and Power Technology chemistry.chemical_element Combustion technique Kerosene Combustors Hydrogen fuels NOx Flammability limit Burners Kerosene fuels Colorless distributed combustion Renewable Energy Sustainability and the Environment Combustion performance Hydrogen enrichment Condensed Matter Physics Reactions rates Adiabatic flame temperature Gas-turbine combustion Fuel Technology Flame temperatures chemistry Chemical engineering Gas turbine CFD-codes Combustor Combustion chamber Nitrogen oxides Turbulence models Gas turbines |
| Zdroj: | International Journal of Hydrogen Energy. 47:12354-12364 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2021.06.228 |
| Popis: | This study examines hydrogen-enriched kerosene combustion under distributed regime in a gas turbine combustion chamber. With hydrogen enrichment, it is aimed at increasing combustion performance of those fuels. However, in this circumstance, it is obvious to increase the flame temperature with taking place hydrogen enrichment. Thus colorless distributed combustion (CDC), which is one of the advanced combustion techniques, can be suggested to control flame temperature with slowing down the reaction rate, resulting in ultra-low NOX emissions and more uniform temperature distribution with a broadened flame. For this purpose, the hydrogen-enriched kerosene fuels were examined by modeling a CFD code using the eddy dissipation concept, the radiation model (P-1) and the turbulence model (standard k-epsilon). In this way, the thermal fields and the NOX distributions have been obtained. The results showed that hydrogen enrichment increased the flame temperatures from about 2490 K to 2605 K at air-combustion conditions until 30% H-2, resulting in the NOX levels predicted increased in the combustor. With reducing oxygen percentage the flame started to be the broadened one. The flame temperatures decreased, for instance, from about 2605 K to 2230 K at 15% O-2 for the 30% H-2 containing fuel. As a result of this, the NOX levels reduced from about 30 ppm to the values lower than 1 ppm in the combustor. It is concluded that increments in temperature and NOX levels with hydrogen can be suppressed with distributed regime, which enables that gas turbines can be operated at wider flammability limits with hydrogen enrichment.& nbsp;(c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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