Supercritical CO2 (sCO2) radial inflow turbine design performance as a function of turbine size parameters - GT2016-58137

Jianhui Qi, Thomas Reddell, Kan Qin, Hooman, Kamel and Ingo Jahn (2016): Supercritical CO2 (sCO2) radial inflow turbine design performance as a function of turbine size parameters - GT2016-58137. The University of Queensland. Collection. doi:10.14264/uql.2016.78

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Name Description MIMEType Size Downloads
ASME_V3.rar Full text (open access) Click to show the corresponding preview/stream application/x-rar-compre... 4.26MB 0
TOPGEN_V2.rar Full text (open access) Click to show the corresponding preview/stream application/x-rar-compre... 8.70MB 0
 
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Project name Supercritical CO2 (sCO2) Radial turbine design performance as a function of turbine size parameters
Project description
Supercritical CO2 (sCO2) radial inflow turbine are an enabling technology for small scale concentrated solar thermal power.
They are a research direction of the Australian Solar Thermal Research Initiative (ASTRI).
This study uses the 1D meanline design code TOPGEN, to explore the radial turbine design space under consideration of sCO2 real gas properties.
TOPGEN maps a parametric design space defined by flow and head coefficient.

The preliminary design code is used explore the feasibility, geometry and performance of sCO2 turbines in the 100 kW to 200 kW range in order to assess feasible design spaces and to investigate turbine scaling.
Turbines are scaled with respect to power, while maintaining specific speed constant and with respect to speed.
This analysis shows that both scaling approaches change the feasible design space and that both geometric constraints such as blade height or operational constraints such as blade natural frequency can significantly limit the design space.

Detailed analysis of four shortlisted designs shows that turbine efficiencies close to 85 % can be attained for 100 kW and 200 kW output powers, even when operating at reduced rotor speeds.
This work provides new insight towards the design of small scale radial turbines for operation with sCO2 and highlights scaling issues that may arise when testing sub-scale turbine prototypes.
Contact name Qi, Jianhui
Contact email j.qi@uq.edu.au
Creator name Jianhui Qi
Thomas Reddell
Kan Qin
Hooman, Kamel
Ingo Jahn
Creator(s) role PhD Student
Dataset name Supercritical CO2 (sCO2) radial inflow turbine design performance as a function of turbine size parameters - GT2016-58137
Dataset description
This data collection contains:
--> Current version of TOPGEN code
--> All the original preliminary research results files
--> Post process analysis code
--> ASME paper Latex code
--> ASME paper original figure
Access conditions Open Access
ANZSRC Field of Research (FoR) Code 091307 Numerical Modelling and Mechanical Characterisation
DOI 10.14264/uql.2016.78
Type of data program
data
figures
Language eng
Collection start date 2015-11-01
Collection end date 2016-02-28
Keyword Supercritical carbon dioxide (CO2)
Radial inflow turbine(s)
Australian Solar Thermal Research Initiative
Collection type Collection
Publisher The University of Queensland
Publication Year 2016
Copyright notice 2016, The University of Queensland

 
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Created: Sun, 28 Feb 2016, 03:03:19 EST by Jianhui Qi