Hydraulic Energy Storage System for 1600GWh

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Information about Hydraulic Energy Storage System for 1600GWh
Science-Technology

Published on April 12, 2011

Author: heindl

Source: authorstream.com

PowerPoint Presentation: Hydraulic Hydro Storage System Prof. Dr. rer. nat. Eduard Heindl Furtwangen University Operation Principle: h max =r Water is pumped into a subsurface cavity, using cheap electrical power The is lifted by hydraulic forces The storage is discharged when the energy price is high, using a power converter power grid r 2r E~r 4 Operation Principle capacity power converter connect Hydraulic Hydro Storage System PowerPoint Presentation: E = 2 π g ρ * r 4 h= r l=2 r r mass ~ r ³ maximum heigth ~ r storage capacity: surface ~ cost ~ r ² cost per kWh capacity ~ 1/ r² advantage Hydraulic Hydro Storage System Physical Properties PowerPoint Presentation: Construction 1km mine shaft base tunnel, water intake 1. tunnel 2r construction road 2. tunnel Hydraulic Hydro Storage System PowerPoint Presentation: mined space exca- vator excavated material side view waterprofing waterprofing 2. tunnel base-tunnel base plate Seperation Hydraulic Hydro Storage System PowerPoint Presentation: base plate seperation base-tunnel 2. tunnel rock excavated material top view! exca- vator cutted rock Hydraulic Hydro Storage System PowerPoint Presentation: base plate seperation base plate seperated zylinder is monted on a ballast bed side view waterprofing waterprofing 2. tunnel base-tunnel excavated material Hydraulic Hydro Storage System PowerPoint Presentation: Drilling drilling guide holes for the wire saw Hydraulic Hydro Storage System PowerPoint Presentation: Diamond wire sawing surface 1. tunnel traction Diamond wire saw rock drilling holes r cut surface side view Hydraulic Hydro Storage System PowerPoint Presentation: rock mass Due to rock mechanics, it is neccessary to cut a V-shaped trench sawing string utility tunnel side view utility tunnel boulder Hydraulic Hydro Storage System PowerPoint Presentation: rock mass trench will get smaler due to rock pressure every surface is sealed using geomembrane utility tunnel side view utility tunnel geo-membrane Hydraulic Hydro Storage System PowerPoint Presentation: Sealing and Securing metal sealing ring Sealing to keep rock dry floating piston cylinder capacity filled with water rock securing Hydraulic Hydro Storage System PowerPoint Presentation: Sealing O-ring rock mass piston pin joint with sensor seal steel podest water pressure steel cover Hydraulic Hydro Storage System PowerPoint Presentation: Setup: multi O-ring sealing piston podest v v v rock pressure: 10 Bar per O-ring Hydraulic Hydro Storage System PowerPoint Presentation: Safety blocking in case of high flow 2. backup sealing ring floating piston cylinder capacity filled with water 1. backup sealing ring self inflating in case of water contact There shold be systems, that stop a leakage by physical means Hydraulic Hydro Storage System PowerPoint Presentation: tunnel 10.000 €/m 73 Mio. € drilling 500 €/m 157 Mio. € wire saw 10 €/m² 63 Mio. € overburden 20 €/m³ 126 Mio. € base seperation 1.000 €/m² 785 Mio. € seal (stainless steel) 200 €/m² 157 Mio. € seal geomembrane 100 €/m² 393 Mio. € O-ring 10.000 €/m 31 Mio. € Summe 1.785 Mio. € Investment for r=500 m HHS Hydraulic Hydro Storage System PowerPoint Presentation: Radius [m] 62,5 125 250 500 storage capacity [GWh] 0,5 7 100 1600 pressure [Bar] 25 50 100 200 Investment² [Mio. €] 40 112 400 1800 Investment per kWh [€] 80 16 4 1 value of one loaded system 100€/MWh [Mio.€] 0,05 0,800 12 200 ROI [# of cycles] 800 140 33 9 Technical and Financial Data* *figures rounded ²invest does not include pumping system Hydraulic Hydro Storage System PowerPoint Presentation: Advantage storage capacity beyond 1000 GWh visible efficiency : 80% known value no resource problem no mountains neccessary no enviromental problems only small footprint (up to 2 MWh/m²) less water consumption than PHS (~1/4) known technologies price drops with 1/r² Hydraulic Hydro Storage System PowerPoint Presentation: Thank you! www.Hydraulic-Hydro-Storage.com Hydraulic Hydro Storage System PowerPoint Presentation: Kontakt Furtwangen University Prof. Dr. Eduard Heindl Robert Gerwig Platz 1 78120 Furtwangen Germany +49 177 2183578 hed@hs-furtwangen.de www.hydraulic-hydro-storage.de Hydraulic Hydro Storage System

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