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Title: An Investigation of Lab Scale Oxygen Enriched Bubbling Fluidized Bed Combustor for Co Firing Conditions
Researcher: Rajesh Kumar
Guide(s): Ravi Inder Singh
University: Birla Institute of Technology and Science
Completed Date: 22/07/2018
Abstract: Fossil fuel depletion and greenhouse gas emissions have captured worldwide attention and started a race for exploring alternative sources of energy and to develop sustainable, renewable and several carbon capture and storage (CCS) technologies. As a renewable energy resource, combustion of biomass and municipal sewage sludge have a great potential in reducing dependency on fossil fuels and reduce greenhouse gases. India, has immense reserves of biomass (agricultural waste, organic matter, forest waste etc) which are unexplored for energy generation. Moreover, production of municipal sewage sludge across Indian metro cities has been an ever-increasing phenomenon due to industrial development and growing urbanization. The country can be benefited economically and environmentally if these fuels are identified and utilized through appropriate devices. Oxyfired fluidized bed combustion technology provides the most favorable environment for the combustion of solid fuels in this direction resulting in maximum amount of carbon dioxide emitted, which is easy to control. The objective of this study was to identify the energy potential waste available in surplus quantity in India and to investigate their co-fired behavior in a lab scale oxygen-enriched bubbling fluidized bed (OE-BFB) combustor. The fuels selected for investigations were: Coal, Rice Husk (RH), Plant Litter (PL), Prosopis Juliflora (PJ), Pine Needles (PN), Guar stalks (GS), Mustard Husk (MH) and municipal sewage sludge (MSS). The selected fuels were characterized through laboratory tests. OE-BFB combustor was investigated for cofiring of coal/biomass or MSS/biomass under different environmental conditions. Three experiments were performed to investigate combustion and emission behavior of fuel blends, performance analysis of combustor and characteristics of the generated ash and agglomeration. In test-1 RH, PL, and coal are co-fired inside a lab scale BFB combustor under O2/N2/RFG mode. Results show that blends of coal/PL and coal/RH have been burnt succe
Pagination: xv,122
Appears in Departments:Mechanical Engineering

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