The effect of wood biomass blending with pulverized coal on combustion characteristics under oxy-fuel condition |
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| Affiliation: | 1. Graduate School of Mechanical Engineering, Pusan National University, Busan 609-735, Republic of Korea;2. School of Mechanical Engineering, Pusan National University, Busan 609-735, Republic of Korea;1. School of Resources and Environment, Anhui Agricultural University, Hefei 230036, PR China;2. Key Laboratory of Crop Biology of Anhui Province, Anhui Agricultural University, Hefei 230036, PR China;3. Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China;1. School of Thermal Engineering, Shandong Jianzhu University, Jinan, China;2. School of Energy and Power Engineering, Shandong University, Jinan, China;3. Jinan Special Equipment Inspection and Research Institute, Jinan, China;1. Chemical Engineering Department, IHI Corporation, Yokohama 235-8501, Japan;2. Engineering Centre, IHI Corporation, Tokyo 135-8710, Japan;1. Center of Flow Simulation, Department of Mechanical and Process Engineering, Duesseldorf University of Applied Sciences, Muensterstr. 156, D-40476 Duesseldorf, Germany;2. Faculty of Mechanical Engineering, Istanbul Technical University, Turkey |
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| Abstract: | In this study, combustion from the co-firing of coal and wood biomass, and thermal characteristics such as ignition temperature, burn-out temperature, and activation energy were discussed using a thermogravimetric analyzer (TGA). We investigated the effects of biomass blending with two kinds of pulverized coal (bituminous Shenhua, and sub-bituminous Adaro) under air and oxy-fuel conditions. The coal fraction in the blended samples was set to 1, 0.8, and 0.5. The oxygen fraction in the oxidant was set to 0.21, 0.3, 0.5, and 0.8. The ignition temperature was governed by the fuel composition, particularly in the blended biomass which has a much higher content of volatile matter comparing to coal. However, the burnout temperature, which shows a strong relationship with char combustion, depended on the oxidant ingredients rather than on the fuel components. Thermal characteristics such as ignition, burnout temperature, reaction region, and heat flow were very similar between air and a 0.3 oxygen concentration under oxy-fuel conditions with Shenhua coal. |
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| Keywords: | Wood biomass Coal combustion Blending Co-firing Oxy-fuel Combustion characteristic |
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