Investigation on combustion characteristics and emissions of biogas/hydrogen blends in gas turbine combustors
نویسندگان
چکیده
• Combustion and emission characteristics for biogas-hydrogen non-premixed flames. Simulation on SIEMENS SGT750 Combustor. Effect of hydrogen enrichment the stable flame operation. biogas macrostructure. Comparative analysis NO locating optimum conditions In present work, numerical investigations are performed to study combustion fuel blended with at various compositions a swirling in can-type gas turbine combustor. The amount varies from 0 50% by volume. A approach using flamelet model, turbulent standard (k–?) P-1 radiation model was adopted simulating combustor power fixed operating 60 kW. steady laminar used analyze effect enrichment, global equivalence ratio different swirl numbers operation, temperature distribution contours, velocity streamline emissions, species concentrations. results indicate that variation significantly impacted Hydrogen intensifi combustion, leading higher wider flammability than bure biogas. Maximum emissions outlet chamber have been dropped 43 78 (ppm @15 % volume O 2 ) biogas-50% H 2, respectively, due reduced reduction thermal NOx formation 0.5 0.2. ? = 0.2 high rate (50% close pure (0% same ratio. show CO decrease increasing addition decreasing ratio; carbon, cooling effect, an increase OH concentration.
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The central recirculation zone (CRZ) in a swirl stabilized gas turbine combustor has a dominant effect on the fuel air mixing process and flame stability. Most of state of the art swirlers share one disadvantage; the fixed swirl number for the same swirler configuration. Thus, in a mathematical sense, Reynolds number becomes the sole parameter for controlling the flow characteristics inside the...
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ژورنال
عنوان ژورنال: Thermal science and engineering progress
سال: 2022
ISSN: ['2451-9057', '2451-9049']
DOI: https://doi.org/10.1016/j.tsep.2021.101178