Hassinger, Reinhard

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University of Massachusetts AmherstScholarWorks@UMass AmherstInternational Conference on Engineering andEcohydrology for Fish PassageInternational Conference on Engineering andEcohydrology for Fish Passage 2016Jun 21st, 1:45 PM - 2:00 PMInnovations I: The Fish-Lifting Trough: ACombined Trash-Rack Cleaner and Fish PassageDeviceReinhard HassingerUniversity of KasselFollow this and additional works at: https://scholarworks.umass.edu/fishpassage_conferenceThis Event is brought to you for free and open access by the Fish Passage Community at UMass Amherst at ScholarWorks@UMass Amherst. It hasbeen accepted for inclusion in International Conference on Engineering and Ecohydrology for Fish Passage by an authorized administrator ofScholarWorks@UMass Amherst. For more information, please contact scholarworks@library.umass.edu.Hassinger, Reinhard, "Innovations I: The Fish-Lifting Trough: A Combined Trash-Rack Cleaner and Fish Passage Device" (2016).International Conference on Engineering and Ecohydrology for Fish Passage. 28.https://scholarworks.umass.edu/fishpassage_conference/2016/June21/28Department of Civil and Environmental EngineeringThe Fish-lifting Trough– a Combined Trash-rack Cleaner andFish Passage DeviceDr.-Ing. Reinhard HassingerHydraulics Laboratory andTesting FacilitiesUniversity of Kassel, GermanyHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassinger• Remarks for downstreamguidance of fish in Germany• Concept and function offish-lifting trough• Lab tests• Pilote site InterlakenCopyright: VPUW, University of Kassel, GermanyDepartment of Civil and Environmental Engineering 2The Angled ScreenHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassingerdoor w ith 2 cut-outs w eir f lapαmigrat ioncorridorforebaySluice-wayDepartment of Civil and Environmental Engineering 3Design Criteria for Angled ScreenHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDesign criteria (after Courret and Larinier (1)):• Perpendicular component of approach velocity vn not greater than 0,50 m/s.• Tangential component equal or greater than perpendicular component=> angle of intersection α between streamlines and surface not greaterthan 45 degreesCriterion for unforced and promptly migration into the bypass: limited acceleration and velocity (according to different authors):• v < 0,60 m/s = > complex hydraulic control, difficult to comply1: Courret, D.; Larinier, M.: Guide pour la conception de Prises d’eau « ichthyocompatibles » pour les petites centrales hydroelectriques. RAPPORT GHAAPPE RA.08.04; Nov. 2008 Department of Civil and Environmental Engineering 4Restricted Application of Angled ScreensHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassingerw ide forebayαw eir w ith low  flowIf the forebay is wider thanthe aspect width of thescreen, streamlines intersectthe screen with much larger angles => guidance vanishesin the middle of the screen=> no guidance to thebypass entrance sectionsFish is subject to delay andpredationDepartment of Civil and Environmental Engineering 5Inclined ScreenHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassingertransversal bypass channelconnecting channelinclined screenβ <= 30 degreesβDepartment of Civil and Environmental Engineering 6Design Criteria for Inclined ScreenHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDesign criteria (after Courret and Larinier (1)):• Perpendicular component of approach velocity vn not greater than 0,50 m/s.• Tangential component equal or greater two times the perpendicularcomponent (vt >= 2 x vn) => angle of intersection α between streamlinesand surface about 26 degrees (often 30 degrees used)Criterion for unforced and promptly migration into the bypass: limited acceleration and velocity (according to different authors):• v <= 0,60 m/s = > complex hydraulic control, difficult to comply1: Courret, D.; Larinier, M.: Guide pour la conception de Prises d’eau « ichthyocompatibles » pour les petites centrales hydroelectriques. RAPPORT GHAAPPE RA.08.04; Nov. 2008 Department of Civil and Environmental Engineering 7Disadvantages of Both Fish Guiding Systems • Large screen area• Large building pit• Long-time interruption of turbine operation• Long outreach or long track for the trash-rack cleaner• Hydraulic conditions in bypass difficult to controlExpensive and hard to realize at existing sites!Hydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDepartment of Civil and Environmental Engineering 8(Not) New Concept of Catch and Carry: Take the fish withthe Trash-rack Cleaner• Combination with „Fish-friendlyTrash Screen“• Screen vertical (not angled, not inclined)• Cleaner wipes debris off thescreen and catches fish in a trough• Trough is drained close to thewater surface• Fish and debris are washed tothe tailraceHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerThe „Fish-friendly Screen“ – a product of KlawaGmbH, Germany (www.klawa-gmbh.de)Department of Civil and Environmental Engineering 9Hydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerFunctional Principle of theFish-lifting Trougha) Home position in bottom groove; fish-protection comb on bottom; wipingstrip on screen surfaceb) Fish protection comb is turnedupwards; trough moves upc) Debris is wiped off; fish are collectedin wake of combd) Tips of comb teeth head out of watersurface:  fish are trappede) Sliding gate is lowered =opened: content of trough is drained includingfish and debrisf) Wiping strip is lifted off the surface; trough moves down; fish-protectioncomb is layed down Flushing deviceWiping stripScreen (10 mm)MovingdownwardsDrainageDownwardsliding gatecombtroughDepartment of Civil and Environmental Engineering 10Animation of Fish-lifting troughHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDepartment of Civil and Environmental Engineering 11Research and Development ProjectHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerEntwicklung und Untersuchung einer neuartigen Kombination von Fischabstiegsvorrichtung und Rechenreiniger. Report dbu project no. 27863 – 24/0Development and test of a new combination of fish-bypass and trash-screen cleanerDepartment of Civil and Environmental Engineering 12Longitudinal Section of the Test SetupHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDepartment of Civil and Environmental Engineering 13Laboratory Tests with Live FishHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerFish-lifting trough with eels (Anguilla anguilla)Fish-lifting trough with salmonsmolts (Salmo salar)Department of Civil and Environmental Engineering 14Eel Capture and MigrationHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDepartment of Civil and Environmental Engineering 15Salmon Capture and TransportHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDepartment of Civil and Environmental Engineering 16Rate of Transported FishHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerSalmon smolt (Salmo salar)Europ. Eel (Anguilla anguilla)Roach (Rotilus rotilus)Dace (Leuciscus leuciscus)Gudgeon (Gobio gobio)Bleak (Alburnus alburnus)Department of Civil and Environmental Engineering 17Pilote Site in Interlaken/SwitzerlandHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDepartment of Civil and Environmental Engineering 18Technical Data of Pilote Site Hydropower Plant  Interlaken (operated by: IBI Industrielle Betriebe Interlaken, Switzerland)Hydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassinger• Max. discharge: 30 m³/s• Head: 3,50 m• 3 turbines with separate approach channels• Width of each channel: 4,50 m• Water depth upstream screen: 2,11 m• Approach velocity: 1,05 m/sDepartment of Civil and Environmental Engineering 19New Fish-related Components at Hydropower Plant InterlakenHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassinger1. Fish-friendly trash screen; clear spacing 10 mm2. 3 Fish-lifting troughs in a row: 3 x 4,50 m; synchronizedoperation3. New fish lock with a brush-furnished slope inside; the brushesdissipate hydraulic energy while filling the lock4. Attraction current jet-pumps enhance the attraction flow at thelock‘s entranceDepartment of Civil and Environmental Engineering 20Hydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassinger• The constructionworks are just going on.• Operation starts in September 2016.• A 2 years intensemonitoring on efficiency of thetrough and the newfish lock will be conducted.Copyright: IUBEngineering AGBelpstrasse 48PostfachCH - 3000 Bern 14 Longitudinal Sectionthrough Pilote Site InterlakenDepartment of Civil and Environmental Engineering 21Advantages of the Fish-lifting TroughHydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard Hassinger• Very low water demand• Hydraulic paraconditions are simple to control• Short construction length (in flow direction) -> easy to install in existing hydroelectric plants• Mean waiting time for the fish 10 min => no delays• low predation risk in the forebay• low selectivity; high efficiency• Less cost and effort (compared to guiding screens)• Fish-related functions are combined with essential functionsfor hydropower purposesDepartment of Civil and Environmental Engineering 22Summary• The Fish-lifting trough is a combined trash screen cleaner and fishtransporter.• I takes fishes of all species which are upstream of the screen (closerthan 0,80 - 1,20 m) with a high rate to the tailrace.• Fish and debris are washed downstream.• The fish-lifting trough is optimal with a vertical fish-friendly screen(with 10 mm clear spacing: head loss = 7 mm for 0,50 m/s approachvelocity)).Hydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerDepartment of Civil and Environmental Engineering 23Hydraulics Laboratory and Testing Facilities  Dr.-Ing. Reinhard HassingerThank you!Author: Dr.-Ing. Reinhard Hassinger, University of Kassel eMail: vpuw@uni-kassel.dewww: www.uni-kassel.de/fb14/vpuwReferences: Hassinger, R.; Huebner, D.: Entwicklung und Untersuchung einer neuartigen Kombination von Fischabstiegsvorrichtung und Rechenreiniger. Report dbu project no. 27863 – 24/0, Feb. 2013 (available as *.PDF from author)

Innovations I: The Fish-Lifting Trough: A Combined Trash-Rack Cleaner and Fish Passage Device

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Innovations I: The Fish-Lifting Trough: A Combined Trash-Rack Cleaner and Fish Passage Device

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