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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
Parametric Optimization of a Supersonic Swirling Separator
Submission Author:
Jairo Cavalcante , SP
Co-Authors:
Jairo Cavalcante , ULISSES ADONIS SILVA COSTA, Ernani Volpe, Marcelo Hayashi, Luccas Kavabata, Arthur Cato
Presenter: Jairo Cavalcante
doi://10.26678/ABCM.ENCIT2020.CIT20-0413
Abstract
Supersonic separators of carbon dioxide (CO2) consist in a relatively new technology which addresses two key factors in the Natural Gas processing: Firstly, it efficiently removes most of the carbon dioxide present in the natural gas composition, for high concentrations of carbon dioxide; and secondly, it can fit in the reduced available space on the Floating Production Storage and Offloading (FPSOs) units. On using adjoint method, two measures of merit are proposed to enhance the separator geometry: (1) pressure inverse design to delay the shock wave in the nozzle; and (2) the angular moment, to increase the swirl number, by slightly modifying the swirl generator vanes geometry. Both objectives have been successfully achieved, while keeping most of the separator original footprint, which also confirms the right choice for the measures of merit. Although the thermodynamic model does not consider phase change in this work, it does point the way for further studies that shall do that.
Keywords
swirling flows, Adjoint method, Supersonic separators
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