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Power generation from biomass in a small CFBC plant compared with biomass co-fired with coal in a large CFBC

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

McIlveen-Wright, D, Rezvani, S, Huang, Y and Hewitt, NJ (2007) Power generation from biomass in a small CFBC plant compared with biomass co-fired with coal in a large CFBC. International Journal of Ambient Energy, 28 (3). pp. 143-150. [Journal article]

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Abstract

which is not intermittent, location-dependent or very difficult to store. If grown sustainably, biomass can be considered to be CO 2 neutral. The use of biomass for power generation is also considered to be important in increasing the electricity output from renewable energy sources. However, power plants dedicated to the use of biomass fuel are not in widespread use and the acceptance of this fuel and development of the infrastructure for biomass production and transportation remain in their infancy. If small ratios of biomass can be co-fired with coal in large-scale conventional power plants, without significant technical, environmental or economic penalties, it could lead to a greater demand for biomass and so stimulate the industry. In this study a 80 MWth Circulating Fluidised Bed Combustion (CFBC) plant, fuelled by biomass only, and a large-scale 1000 MWth CFBC, co-fired with coal and 8% biomass, and the same large CFBC system, fired only with coal, are modelled using the ECLIPSE process simulation package and their technical, environmental and economic properties analysed and compared. The co-firing of biomass with coal was found to have little effect on the large-scale CFBC system, when a small ratio of biomass is used. The large scale system was found to have higher efficiency, lower CO2 emissions and lower break- even electricity selling price than the small biomass-fuelled CFBC. Co-firing of biomass with coal could be a promising way of promoting the production, use and acceptance of biomass as a fuel in electricity generation.

Item Type:Journal article
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute
Built Environment Research Institute > Centre for Sustainable Technologies (CST)
ID Code:10751
Deposited By:Dr David McIlveen-Wright
Deposited On:21 Mar 2011 11:43
Last Modified:21 Mar 2011 11:43

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