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Won Yang
Won Yang is a principal researcher at the Korea Institute of Industrial Technology (KITECH) and a professor at the Korea National University of Science and Technology (UST). He has been working on the combustion of solid fuels such as coal, solid waste, and biomass, mainly focusing on applications in thermal power plants. Since joining KITECH in 2006, he has led over 20 government-funded projects and over 10 company-funded projects in this area, and has published approximately 50 papers in peer-reviewed international journals. Currently, he is also working on the development of an energy management system (EMS) for power plants, waste incineration plants, smart farms, and manufacturing factories. Currently he is involved in 4 ammonia co-combustion projects for coal power plants, funded by Korea Electricity and Power Corporation (KEPCO), Ministry of Trade, Industry and Energy (MOTIE) and Ministry of Science and ICT (MSIT), as well as several projects on EMS funded by MOTIE and Ministry of Environment (ME). He is a board member of the Korea Society of Combustion (KOSCO) and one of the committee members of the 13th China-Korea Clean Energy Workshop.
Presentation title: Engineering approaches to co-combustion of carbon-free fuels to coal power generation systems – Experimental & process simulation studies
Abstract: The co-combustion of low-carbon or carbon-free fuels such as biomass, ammonia, and hydrogen in existing thermal power generation plants is one of the most efficient and economical ways to reduce carbon emissions. This paper introduces engineering approaches to the co-combustion of these fuels for coal power generation plants, which are categorized into three parts: (1) Co-combustion methods for the boiler, (2) Evaluation of thermal performance for various co-firing ratios, and (3) Combustion optimization through pilot-scale experiments. Part (1) introduces various methods applicable to existing plants and discusses their pros and cons. Part (2) includes process simulation studies for these methods and various co-firing ratios aimed at understanding the effects of partially replacing the fuel on the thermal performance of the plants. In particular, the effects of ammonia co-firing on Pulverized Coal (PC) power plants and Circulating Fluidized Bed (CFB) boiler efficiency are evaluated and compared for various co-firing ratios ranging from 0% to 30%. Part (3) introduces experimental studies in bench- and pilot-scale combustion systems. The ammonia co-firing experiment on the single burner optimization tests and analyzes various nozzles in the burner or locations of side-wall injection. Finally, the roadmap of our research for 50% ammonia co-firing is discussed, from the development of a single burner to the optimization of a combustion system including multiple burners.