Rizvi, T, Xing, P, Pourkashanian, M et al. (3 more authors) (2015) Prediction of biomass ash fusion behaviour by the use of detailed characterization methods coupled with thermodynamic analysis. Fuel: the science and technology of fuel and energy, 141. 275 - 284. ISSN 0016-2361
Abstract
Ash deposition such as slagging and fouling on boiler tube surfaces is an inevitable, though undesirable consequence of burning solid fuels in boilers. The role of fuel characteristics, in affecting the form and severity of the problem, is significant. In recent years, biomass fuels have gained increasing popularity as an environmentally friendly source of energy in power plants all over the world. This study is based on characterising the fusion behaviour of four biomass fuels (pine wood, peanut shells, sunflower stalk and miscanthus) using ash fusion temperature (AFT) tests, simultaneous thermal analysis (STA) of fuel ashes, calculation of empirical indices and predicting ash melting behaviour with the help of thermodynamic equilibrium calculations. The AFT results failed to show any clear trend between fusion temperature and high alkali content of biomass. STA proved useful in predicting the different changes occurring in the ash. Empirical indices predicted high slagging and fouling hazards for nearly all the biomass samples and this was supported by the possible existence of a melt phase at low temperatures as predicted by thermodynamic calculations.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Ash deposition; Fusion behaviour; Simultaneous thermal analysis; Thermodynamic equilibrium |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Research Institute (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Tech & Innovation Initiative (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Oct 2015 08:55 |
Last Modified: | 03 Nov 2016 09:43 |
Published Version: | http://dx.doi.org/10.1016/j.fuel.2014.10.021 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.fuel.2014.10.021 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:85313 |