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This study numerically analyzed hydrogen-enriched conventional fuels (methane, natural gas, propane, LPG, biogas) in a premixed burner. Hydrogen addition increased both energy efficiency and exergy performance, with biogas showing the greatest improvement. The results highlight the importance of base fuel composition and suggest that hydrogen enrichment of biogas is highly promising for cleaner, more efficient combustion.
This project examined how adding varying amounts of hydrogen to common gaseous fuels (methane, propane, LPG, natural gas) affects premixed burner performance. Numerical simulations showed that hydrogen enrichment generally boosts combustion efficiency and lowers unburnt HC and CO emissions, though the impact can depend on specific fuel compositions.
This project tackles reducing emissions (CO, unburnt HC, NOx) and boosting combustion efficiency in industrial burners. By modifying furnace and burner designs to incorporate preheated air and flue gas recirculation (FGR), Burner-1 achieved notably lower emissions. The study also showed that choosing between linear and non-linear turbulence models can significantly influence predicted emission outcomes.
This project used numerical simulations to optimize a crescent-flame domestic burner by adjusting burner diameter and the distance between cooker and burner head. With methane fuel, results showed that increasing both diameter and distance improves temperature distribution on the cooker's surface and reduces emissions (CO, NO, and unburnt HC).
This study numerically examined a cooktop burner using propane, natural gas, hydrogen, and three biogas blends at varying inlet pressures and fuel channel diameters. Results showed that hydrogen offered the highest efficiency (about 50% above average), but also had the highest NO emissions. Natural gas provided the highest surface temperature (8% above average), yet generated notable unburnt hydrocarbon emissions. Biogas cases featured cooler flames due to lower calorific value. Adjusting the fuel channel diameter significantly impacted NO emissions, highlighting its importance for optimizing performance and emissions.