Reclamation of ultra-fine coal with scenedesmus microalgae and comprehensive combustion property of the Coalgae® composite

Autor: Vitus O. Ejesieme, Nicole Vorster, Juan Riaza, Gary Dugmore, Ben Zeelie

Publikováno v: Journal of Energy in Southern Africa, Vol 31, Iss 1 (2020)

Combustion of South African discard ultra-fine coal (i.e. coal dust), charcoal, microalgae biomass, and composites of the three under air were studied. The study involves to find out the effect of Scenedesmus microalgae biomass on the comprehensive c

Externí odkaz: https://doaj.org/article/8039fbe806944f23a08aa0b7406815f2

A Study On The Reactivity Of Various Chars From Turkish Fuels Obtained At High Heating Rates

Autor: Juan Riaza, Feyza Kazanç, Duarte Magalhães

This work investigates the reactivity of chars produced from Turkish biomass and lignite fuels using a wire mesh reactor at high temperature and high heating rate. The fuels studied were olive residue, almond shell, and Soma lignite. Blends of Soma l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f5f4af50a71714a8bbe7f8501d58c64
https://aperta.ulakbim.gov.tr/record/73549

Shape and size transformations of biomass particles during combustion

Autor: Patrick E. Mason, Jon Gibbins, Alan Williams, Jenny M. Jones, Hannah Chalmers, Juan Riaza

Publikováno v: Riaza, J, Mason, P E, Jones, J M, Williams, A, Gibbins, J & Chalmers, H 2020, ' Shape and size transformations of biomass particles during combustion ', Fuel, vol. 261, 116334 . https://doi.org/10.1016/j.fuel.2019.116334

Combustion of individual particles of different woody and agricultural residue biomass have been studied under a laboratory scale rapid-heating apparatus. Particles used were in the size range of 300–1400 mm and weight 0.5–7 mg. A wire mesh eleme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88ac067fbf132fe0d559798aed4a5d96
https://doi.org/10.1016/j.fuel.2019.116334

Oxy-coal combustion in an entrained flow reactor: Application of specific char and volatile combustion and radiation models for oxy-firing conditions

Autor: José J. Pis, Fernando Rubiera, Covadonga Pevida, Chungen Yin, Juan Riaza, L. Álvarez

Publikováno v: Álvarez, L, Yin, C, Riaza, J, Pevida, C, Pis, J J & Rubiera, F 2013, ' Oxy-coal combustion in an entrained flow reactor: Application of specific char and volatile combustion and radiation models for oxy-firing conditions ', Energy, vol. 62, pp. 255-268 . https://doi.org/10.1016/j.energy.2013.08.063
Digital.CSIC. Repositorio Institucional del CSIC
instname

The deployment of oxy-fuel combustion in utility boilers is one of the major options for CO2 capture. However, combustion under oxy-firing conditions differs from conventional air-firing combustion, e.g., in the aspect of radiative heat transfer, coa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddaadfcd2f98487e6468a05332b2965a
https://doi.org/10.1016/j.energy.2013.08.063

CFD modeling of oxy-coal combustion: Prediction of burnout, volatile and NO precursors release

Autor: L. Álvarez, José J. Pis, Covadonga Pevida, Mohamed Pourkashanian, Fernando Rubiera, Juan Riaza, Allan Williams, M. Gharebaghi, Julian R. Jones

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname

The devolatilisation step of coal is a vital stage in both air–coal and oxy-coal combustion and there is interest in whether methods of estimating the reaction parameters are similar for both cases. A network pyrolysis model, the FG-DVC (Functional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20df7e42972838237d9f7ae3b53cdf40
https://doi.org/10.1016/j.apenergy.2012.11.058