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Analysis of combustion characteristics using CPFD in 0.1 MWth oxy-fuel CFB

Analysis of combustion characteristics using CPFD in 0.1 MWth oxy-fuel CFB This study used computational particle-fluid dynamic (CPFD) analysis techniques to analyse the fluidisation and reaction characteristics in a 0.1 MWth oxy-fuel circulating fluidised bed (oxy-CFB) combustor. An oxy-CFB 3-dimensional model incorporated with various reaction kinetic models as stated in previous studies is used to predict the flue gas compositions. The gas and solid profiles in the oxy-CFB combustor shows a typical CFB structure consisted of dense and lean phase in the combustion chamber. Furthermore, the formation of CaSO4 particles is evidence of a direct desulfurisation reaction between CaCO3 and SO2 in the oxy-CFB combustor. As a result, a continuous direct desulfurisation of CaCO3 occurred in the reactor, which is expected to achieve maximum conversion in the long term. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Nanotechnology Inderscience Publishers

Analysis of combustion characteristics using CPFD in 0.1 MWth oxy-fuel CFB

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Publisher
Inderscience Publishers
Copyright
Copyright © Inderscience Enterprises Ltd
ISSN
1475-7435
eISSN
7141-8151
DOI
10.1504/ijnt.2022.122369
Publisher site
See Article on Publisher Site

Abstract

This study used computational particle-fluid dynamic (CPFD) analysis techniques to analyse the fluidisation and reaction characteristics in a 0.1 MWth oxy-fuel circulating fluidised bed (oxy-CFB) combustor. An oxy-CFB 3-dimensional model incorporated with various reaction kinetic models as stated in previous studies is used to predict the flue gas compositions. The gas and solid profiles in the oxy-CFB combustor shows a typical CFB structure consisted of dense and lean phase in the combustion chamber. Furthermore, the formation of CaSO4 particles is evidence of a direct desulfurisation reaction between CaCO3 and SO2 in the oxy-CFB combustor. As a result, a continuous direct desulfurisation of CaCO3 occurred in the reactor, which is expected to achieve maximum conversion in the long term.

Journal

International Journal of NanotechnologyInderscience Publishers

Published: Jan 1, 2022

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