DBPapers
DOI: 10.5593/SGEM2014/B31/S12.024

CONFRONTATION OF THE RESEARCH ON THE DOBROHOST SHPP AND ITS OPERATION AFTER ITS CONSTRUCTION

J. RUMANN
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-13-1 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 1, 183-190 pp

ABSTRACT
The paper describes the research on the Dobrohošť small hydropower plant (put into operation in 2011) that was performed by the Department of Hydraulic Engineering and the experience of its operation. This research preceded the construction of this small hydropower plant and its main objectives were focused on the verification of the design of the hydropower plant by simulating normal operation scenarios at steady flow conditions as well as emergency and failure simulations at unsteady flow conditions. The steady flow simulations were aimed to verify velocity fields at the floating barrage of the intake structure, hydraulic losses at the entire water intake (intake structure, pressure conduit and surge chamber). The unsteady flow simulations were aimed to verify the surge chamber capacity and the water hammer effects in the pressure conduit and the surge chamber. The research consisted of field measurements at the Dobrohošť intake structure, physical research on a scale model in the hydraulic laboratory and mathematical modelling of selected problems of the intake structure. The results of this hydraulic research and the experience from the operation after the construction of this hydropower plant are confronted. The confrontation shows problems with the intake structure design determined by the research in real operation of the small hydropower plant due to the neglecting of the research results.

Keywords: hydraulic research, physical modelling, mathematical modelling, small hydropower plant, operational experience