Studies & guides
Fish-Monitoring
- 2/3 of the fish that were used ascended (chub, barbel, pike, Danube salmon, sneep, roach)
- At least 1 fish of each species from 1.5 cm to 70 cm fish length
Research report: Fish monitoring on the Jeßnitz (2013)
Screw turbine Walter Albrecht
Chub-barbel-pike-Danube salmon-sneep-roach Experiment
Fish ecological studies
- continuous ascents registered during the entire operating period (Oct. 2013 to March 2014)
- The hydrodynamic screw from Hydroconnect is very well suited for fish descent
- various fish species descended and ascended
- no danger of injury for fish (upstream and downstream)
Fish ecological studies of the “HYDROCONNECT” hydrodynamic screw with an “Albrecht fishLift inside” at the Jeßnitz power plant location (2014)
BERNHARD ZEIRINGER, MAXIM GRIGULL & STEFAN AUER
BOKU – University of Natural Resources in Vienna, Institute for Hydrobiology and Water Management
Visualisation: Descent and ascent statistics
Visual representation of the fish ecological studies of the “HYDROCONNECT” hydrodynamic screw with an “Albrecht fishLift inside” at the Jeßnitz power plant location (2014)
Fish ecological studies of the “HYDROCONNECT” hydrodynamic screw with an “Albrecht fishLift inside” at the Jeßnitz power plant location (2014)
BERNHARD ZEIRINGER, MAXIM GRIGULL & STEFAN AUER
BOKU – University of Natural Resources in Vienna, Institute for Hydrobiology and Water Management
Guideline: Practical manual for environmentally aware use of turbine technologies in very-small-scale hydropower plants
- Description and assessment of 17 turbine technologies (Hydroconnect pg. 60)
- From the conclusion: “The design and use of technology in the fish-friendly dam and hydrodynamic screw with double rotating cylinders is to be rated as very positive. It can be seen in the development that the thought of protecting the fish was a high priority right from the start.”
Guideline: Practical manual for environmentally aware use of turbine technologies in very-small-scale hydropower plants
Manuela Reuter & Christian Kohout, IWSÖ Institute for Water Management, Urban Water Supply and Sanitation and Ecology (IWSÖ ) in Thuringia
Study: Preliminary trials of macro-zoobenthos
In the 3-day trial, 2271 macro-zoobenthos found their way up through the fish transport screw.
Study: Preliminary trials of macro-zoobenthos on the “HYDROCONNECT” hydrodynamic screw with an “Albrecht fishLift inside” at the Jeßnitz power plant location (2014)
DI Bernadette Rauch, Nadine Remund, BSc
BOKU – University of Natural Resources in Vienna, Institute for Hydrobiology and Water Management
Study:Descent trial
Numerous fish of various kinds descended. All passed the screw injury free. Some of them also reascended.
Study: Descent trial of the “HYDROCONNECT” hydrodynamic screw with an “Albrecht fishLift inside” at the Jeßnitz power plant in Lower Austria
Bernhard Zeiringer, Maxim Grigull, Stefan Auer
BOKU – University of Natural Resources in Vienna, Institute for Hydrobiology and Water Management
Study: Electrical efficiency analysis
Alread at smaller plants electrical efficiencies of 65% and more are possible.
Study: Efficiency analysis and hydromorpical measurement of the “HYDROCONNECT” hydrodynamic screw with an “Albrecht fishLift inside” at the Jeßnitz power plant location in Lower Austria
Bernhard Zeiringer
BOKU – University of Natural Resources in Vienna, Institute for Hydrobiology and Water Management