CFD analysis for an eco-friendly AHS turbine
Authors:
- Bernard S. Twaróg
Abstract
The last decade has seen a growing number of applications of the Archimedean turbine. The principal advantages of this turbine include significantly lower costs of implementation than in the case of Kaplan turbine at a comparable efficiency. The AHS (Archimedes Hydrodynamic Screw) is also highly recommendable because it may be installed under low-head conditions (< 10 m), in creeks and flumes – artificial channels of hydroelectric plants. Its growing popularity may strengthen the policy of distributed generation and contribute to a growth in the number of small plants. The study contains an assessment of efficiency (optimization) of the AHS turbine as a function of its geometry. The decision variables adopted include: the number of helices, the ratio of external to internal diameter, screw pitch and the angle of inclination of the axis, using a defined criterion of power as a function of torque and angular velocity. The analysis was fully performed using CFD (Computer Fluid Dynamics) in the Flow3D software and Reynolds equations. Biomechanical analyses of a fish model placed in various locations of the turbine operation area were made for the best turbine geometry, using FSI (Fluid Structure Interaction) theory. The study gives values of stresses in the fish body and describes the regression relationship between stress and pressure. The last section of the study deals with pressure and velocity fluctuations taking place in various areas when fish swim through the AHS.
- Record ID
- CUT9d8aa73c18cc440c84f8b98f44d12dea
- Publication categories
- ; ;
- Author
- Pages
- 34
- Book
- Szramowiat-Sala Katarzyna, Katarzyna Szramowiat-Sala Marczak Marta, Marta Marczak Figaj Rafał Rafał Figaj [et al.] (eds.): SEED : 3rd International Conference on the Sustainable Energy and Environmental Development, October 16-18, 2019, Krakow, Poland : book of abstracts, 2019, Kraków, Institute of Sustainable Energy – Publishing House, ISBN 978-83-954975-3-7
- Keywords in English
- Archimedes Hydrodynamic Screw, biomechanical analyses, assessment of efficiency, CFD
- URL
- http://www.seedconference.org/publications/ Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 0
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT9d8aa73c18cc440c84f8b98f44d12dea/
- URN
urn:pkr-prod:CUT9d8aa73c18cc440c84f8b98f44d12dea
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.