Hydrodynamic experiments on a small-scale circulating fluidised bed reactor at elevated operating pressure, and under An O2/Co2 environment

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dc.contributor.authorSarbassov, Yerbol
dc.contributor.authorZayoud, Azd
dc.contributor.authorMahanta, Pinakeswar
dc.contributor.authorGu, Sai
dc.contributor.authorRanganathan, Panneerselvam
dc.contributor.authorSaha, Ujjwal
dc.date.accessioned2017-06-08T12:01:00Z
dc.date.available2017-06-08T12:01:00Z
dc.date.issued2017-03-01
dc.description.abstractPressurised circulating fluidised bed (CFB) technology is a potentially promising development for clean coal technologies. The current work explores the hydrodynamics of a small-scale circulating fluidised bed at elevated operating pressures ranging from 0.10 to 0.25 MPa. The initial experiments were performed at atmospheric pressure with air and O/CO environments as the fluidisation gas to simulate the hydrodynamics in a CFB. A comparison between the effects of air and O/CO mixtures on the hydrodynamics was outlined in this paper for particles of 160 μm diameter. A small but distinct effect on axial voidage was observed due to the change in gas density in the dense zone of the bed at lower gas velocity, while only minimal differences were noticed at higher gas velocities. The hydrodynamic parameters such as pressure drop and axial voidage profile along the height were reported at two different bed inventories (0.5 and 0.75 kg) for three mean particle sizes of 160, 302 and 427 μm and three superficial gas velocities. It was observed that the operating pressure had a significant effect on the hydrodynamic parameters of bed pressure drop and axial bed voidage profiles. The effect of solids loading resulted in an exponential change in pressure drop profile at atmospheric pressure as well as at elevated pressure. The experimental results on hydrodynamic parameters are in reasonable agreement with published observations in the literature.en_UK
dc.identifier.citationSarbassov Yerbol, Zayoud Azd, Mahanta Pinakeswar, Gu Sai, Ranganathan Panneerselvam, Saha Ujjwal, Hydrodynamic experiments on a small-scale circulating fluidised bed reactor at elevated operating pressure, and under An O2/Co2 environment, Thermal Science, 2017, Vol 21, Issue 2, pp 1093-1104en_UK
dc.identifier.issn0354-9836
dc.identifier.urihttp://dx.doi.org/10.2298/TSCI150921068S
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11988
dc.language.isoenen_UK
dc.publisherVINCA Institute of Nuclear Sciencesen_UK
dc.rightsAttribution-Non-Commercial-No Derivatives 4.0 Unported (CC BY-NC-ND 4.0). You are free to: Share — copy and redistribute the material in any medium or format. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No Derivatives — If you remix, transform, or build upon the material, you may not distribute the modified material. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectCirculating fluidised beden_UK
dc.subjectAxial voidage profileen_UK
dc.subjectPressure dropen_UK
dc.subjectO2/CO2 mixtureen_UK
dc.subjectPressurised circulating fluidised beden_UK
dc.titleHydrodynamic experiments on a small-scale circulating fluidised bed reactor at elevated operating pressure, and under An O2/Co2 environmenten_UK
dc.typeArticleen_UK

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