Institutional-Repository, University of Moratuwa.  

Technical and environmental feasibility of co-firing torrefied biomass in a coal-fired power plant

Show simple item record Devaraja, UMA Supunsala, SDS Gunarathne, DS
dc.contributor.editor Edussooriya, C
dc.contributor.editor Weeraddana, CUS
dc.contributor.editor Abeysooriya, RP 2022-08-05T08:12:11Z 2022-08-05T08:12:11Z 2020-07
dc.identifier.citation ******* en_US
dc.description.abstract Biomass torrefaction is a thermochemical pretreatment process performed at a temperature range of 200oC- 300oC in an inert environment. Moisture and part of the hemicellulose are released during the process resulting an energy densified solid fuel. In this study, rubberwood chips were torrefied at a temperature of 300 oC for 60 minutes. The results show that the lower heating value of biomass increase from 14.58 MJ/kg to 16.38 MJ/kg after torrefaction. Further, a 300MWe coal-fired power plant was simulated using Aspen Plus software and co-firing possibilities of both raw and torrefied rubber wood were evaluated. The results reveal that up to 10% of thermal input can be substituted by raw rubberwood whereas torrefied rubberwood has the potential to substitute around 20% of thermal input without compromising the electrical efficiency. The total input mass flow rate is a crucial factor when co-firing is to be implemented in an existing plant even though it gives the expected energy output with a further increase of torrefied biomass share. With increasing co-firing ratio, it is observed that the total NOx and SOx emissions are reduced due to low N and S content of biomass. Further, combustion efficiency is increasing with increasing co-firing ratio of torrefied biomass. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.relation.uri en_US
dc.subject Biomass energy en_US
dc.subject Torrefaction, en_US
dc.subject Co-firing en_US
dc.subject Rubber wood en_US
dc.title Technical and environmental feasibility of co-firing torrefied biomass in a coal-fired power plant en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Engineering Research Unit, University of Moratuwa en_US
dc.identifier.year 2020 en_US
dc.identifier.conference Moratuwa Engineering Research Conference 2020 en_US Moratuwa, Sri Lanka en_US
dc.identifier.pgnos pp. 499-504 en_US
dc.identifier.proceeding Proceedings of Moratuwa Engineering Research Conference 2020 en_US en_US en_US en_US
dc.identifier.doi 10.1109/MERCon50084.2020.9185228 en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record