Zhang, J;
Gomes, P;
Zangeneh, M;
Choo, B;
(2017)
Design of a Centrifugal Compressor Stage and a Radial-Inflow Turbine Stage for a Supercritical CO2 Recompression Brayton Cycle by Using 3D Inverse Design Method.
In:
Proceedings of ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition.
(pp. GT2017-64631).
ASME: Charlotte, NC,USA.
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Abstract
It is found that the ideal gas assumption is not proper for the design of turbomachinery blades using supercritical CO2 (S-CO2) as working fluid especially near the critical point. Therefore, the inverse design method which has been successfully applied to the ideal gas is extended to applications for the real gas by using a real gas property lookup table. A fast interpolation lookup approach is implemented which can be applied both in superheated and two-phase regimes. This method is applied to the design of a centrifugal compressor blade and a radial-inflow turbine blade for a S-CO2 recompression Brayton cycle. The stage aerodynamic performance (volute included) of the compressor and turbine is validated numerically by using the commercial CFD code ANSYS CFX R162. The structural integrity of the designs is also confirmed by using ANSYS Workbench Mechanical R162.
Type: | Proceedings paper |
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Title: | Design of a Centrifugal Compressor Stage and a Radial-Inflow Turbine Stage for a Supercritical CO2 Recompression Brayton Cycle by Using 3D Inverse Design Method |
Event: | ASME Turbine Technical Conference and Exposition (Turbo Expo) |
Location: | Charlotte, NC |
Dates: | 26 June 2017 - 30 June 2017 |
ISBN-13: | 978-0-7918-5096-1 |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1115/GT2017-64631 |
Publisher version: | https://doi.org/10.1115/GT2017-64631 |
Language: | English |
Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
Keywords: | Brayton cycle, Compressors, Design, Design methodology, Inflow, Supercritical carbon dioxide, Turbines, Blades, Computational fluid dynamics, Fluids, Interpolation, Superheating, Turbine blades, Turbomachinery |
UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
URI: | https://discovery.ucl.ac.uk/id/eprint/10109464 |
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