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There has been an increase in the use of biomass for power generation by means of co-firing with coal as well as by the combustion of 100% biomass. Despite the advantages of biomass in reducing carbon emissions from the electricity sector, the co-firing of high percentages of biomass can potentially aggravate ash related problems in the boiler. In order to develop mitigation strategies for the formation...
One of the most promising technologies for carbon capture and storage (CCS) is oxy-fuel combustion. This study uses a commercial computational fluid dynamics (CFD) code to simulate the firing of coal and biomass under air and oxy-fuel conditions in an existing full-scale 500MW e coal-fired utility boiler. Results are presented for conventional air–coal combustion that corresponds well against...
The utilisation of biomass in coal-fired power plants can mitigate CO2 emissions, especially when combined with carbon capture and storage (CCS) technologies, such as oxy-fuel combustion. In this paper, a commercial computational fluid dynamics software was used, with small or no modifications to the physical submodels, to predict the performance of a 500 MWe sub-critical coal fired boiler under air...
Coal blends are now widely used by the power generation industry and the general characteristics are well known. Attention is still directed to the emission of NO x , which is subject to more stringent regulation, and to the amount of carbon in ash. The latter is increased when low NO x burners are employed, which is the norm now. It is also increased as a result of additional air...
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