Offshore renewable energy generation and storage: large size sea energy harvesting

Transcription

1 Offshore renewable energy generation and storage: large size sea energy harvesting Prof. Alberto Traverso University of Genoa, Italy Dipartimento di Ingegneria Meccanica - DIME 1

2 Objectives The Thermochemical Power Group - TPG Introduction and motivation The Seaspoon concept and Seaspoon docking station Development roadmap H2boat startup company 2

3 Objectives The Thermochemical Power Group - TPG Introduction and motivation The Seaspoon concept and Seaspoon docking station Development roadmap H2boat startup company 3

4 Established in 1998 (26 people) Permanent Staff (6) Ph.D. Students (12) Ass. Researchers (8) Scientific activities per-year average International Papers 6-7 Journal Publications 1-2 International Awards 1-2 Patents 4

5 TPG major International partners links (UK) National Fuel Cell Research Centre (US) National Energy Technology Lab (US) LG Fuel Cell Systems (KR) Shanghai Jiaotong University (PRC) Technological Park of Itaipú (PY) Istituto Tecnologico de Aeronautica (BR) 5

6 Budget, Knowledge, People European Projects (more than10 M funding) FP5 GTPOM Rolls- Royce FP V PIP-SOFC Rolls-Royce Fuel Cell Systems FP V IM-SOFC-GT Rolls-Royce FP V FELICITAS Fraunhofer FP VI REAL-SOFC Julich Research Center FP VI FP6 Large SOFC VTT FP VI METHAPU Wartsila FP VI Marie Curie ToK-Dev BioSOFC Marie Curie ToK-IAP EnSOFC GENIUS EIfER FP VII FP7 E-Hub TNO FP VII RESILIENT D Appolonia FP VII C3SOFC Rolls- Royce FP VII H2020 Bio-Hypp DLR H2020 MeFCO2 I-DEALS H2020 today

7 Since

8 Objectives The Thermochemical Power Group - TPG Introduction and motivation The Seaspoon concept and Seaspoon docking station Development roadmap H2boat startup company 8

9 OCEAN POWER: Wave motion Enormous theoretical potential (2x10 6 TWh/year); Waves, tides, currents; Long-term predictable; Sustainable Development Powering remote areas 9

10 OCEAN POWER: Wave Climate on the planet (values expressed in kw per meter of wave front) 10

11 Objectives The Thermochemical Power Group - TPG Introduction and motivation The Seaspoon concept and Seaspoon docking station Development roadmap H2boat startup company 11

12 The Seaspoon wave energy converter Microturbine UNIGE Thermochemical Power Group Advanced Microturbines Srl A spin off of the Italian institute of Technology 12

13 Operating principles Linear wave theory Deep water assumptions Circular orbits under water surface The flat plate impresses on the rotor a surplus in rotational velocity; Rotor blades velocity = rotor tangential velocity + orbital motion velocity Pow 1 2 AC p V 3 13

14 The Seaspoon orbital motion energy converter 1) Savonius rotor 2) Savonius rotation axis 3) Rotor blades 4) Device principal axis 5) Rotor arm 6) Flat plate ( Spoon ) Italian Patent no (2011) 14

15 Orbital motion converter: the Seaspoon concept Numerical model Experimental Test 15

16 The Seaspoon: Features Increased Conversion Efficiency Sea State Power adaptable High Operational Time Robustness 18

17 The Seaspoon: Features INPUT Wave OUTPUT Power (civil/power energy) Compressed Air (military/autonomous) 19

18 Power Range Positioning Microturbine W 20

19 Seaspoon + μ-turbine Semi-rigid structure (metallic pole fixed to the sea floor) The pole is kept vertical by a large submerged float Used for signaling navigable channels and obstacles Compressed air can be easily stored underwater (energy storage) Power is delivered on demand (docking station) Elastic beacon 21

20 SeaSpoon On the Sea Test Campaign (start: Oct 15) 22

21 UMV Docking Station with Subsea Wireless Energy transfer (0.1-10kW range) Part of the PNRM 15 project 23

22 Objectives The Thermochemical Power Group - TPG Introduction and motivation The Seaspoon concept and Seaspoon docking station Development roadmap H2boat startup company 24

23 Development roadmap Test in real sea conditions Docking station for UMV (long endurance) The SEASPOON concept Experimental test with regular waves in waveflume 25

24 Objectives The Thermochemical Power Group - TPG Introduction and motivation The Seaspoon concept and Seaspoon docking station Development roadmap H2boat startup company 26

25 27

26 Energy pack for ECOCOMFORT WIND ENERGY 3-8 kwh/day affordable Energy production from Renewable Energy Sources SOLAR ENERGY DRAG ENERGY & PROPULSION 1.8 kwh/day OnBoard Energy consumption More Energy Less Volume than Batteries The Right Weight at the Right Place!! 28

27 Energy pack for ECOCOMFORT 29

28 Energy pack for ECOCOMFORT INNOVATIVE POWER SYSTEM FOR AUTONOMOUS UNDERWATER VEHICLE This study comes from the collaboration between Fincantieri Naval Vessels Business Unit and the University of Genoa. UNIVERSITÀ DEGLI STUDI DI GENOVA The object was the assessment for the application of fuel cell technology onboard AUV together with an innovative hydrogen storage system based on the studies developed by Technion Israel Instiute of Technology 1 [1] V. Rosenband and A. Gany, Technion 30

29 AUV concept design The assessment tried to consider the most feasible AUV dimensions, design, engine power, weight, operative deepness in order to achieve the performance target set by Fincantieri. MINIMUM THRESHOLD Autonomy >24 h Energy >50 kwh The assessment is composed of two main parts: A) Platform Assessment A statistical analysis has been conducted together with the evaluation of the reference platform. B) FCEPS The methodology developed from Davies & Moore to design fuel cell based AUV has been used in order to produce comparable data 31

30 Energy pack for ECOCOMFORT The results show that: Generally the solid Storage System for hydrogen and oxygen are the best solutions and that the aluminum based hydrogen storage system is one of the most promising technologies. Deeper study should be conducted, considering the water aluminum ratio in closed vessel, the proper oxygen storage system to combine, strategy of cartridge usage. 32

31 The SEASPOON large size energy harvester 33

32 Offshore renewable energy generation and storage: large size sea energy harvesting Prof. Alberto Traverso University of Genoa, Italy Dipartimento di Ingegneria Meccanica - DIME 34