Offshore renewable energy generation and storage: large size sea energy harvesting - Prof. Alberto Traverso
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Offshore renewable energy
generation and storage:
large size sea energy
harvesting
Prof. Alberto Traverso
alberto.traverso@unige.it
University of Genoa, Italy
Dipartimento di Ingegneria Meccanica - DIME
1
Objectives
• The Thermochemical Power Group - TPG
• Introduction and motivation
• The Seaspoon concept and Seaspoon docking station
• Development roadmap
• H2boat startup company
2
Objectives
• The Thermochemical Power Group - TPG
• Introduction and motivation
• The Seaspoon concept and Seaspoon docking station
• Development roadmap
• H2boat startup company
3
Established in 1998 (26 people)
Permanent Staff (6) Ph.D. Students (12) Ass. Researchers (8)
Scientific activities
2004-2015 per-year average
• 10-12 International Papers
• 6-7 Journal Publications
• 1-2 International Awards
• 1-2 Patents
4
TPG major International partners
links
(UK)
LG Fuel Cell Systems
National Energy (KR)
National Fuel Cell Technology Lab (US)
Research Centre (US)
Shanghai Jiaotong
University (PRC)
Technological Park
of Itaipú (PY)
Istituto Tecnologico
de Aeronautica (BR)
5
European Projects H2020
2000-2015 (more than10 M€ funding) Bio-Hypp
DLR
H2020
FP6
FP7 MeFCO2
Large I-DEALS
SOFC H2020
VTT GENIUS
FP VI EIfER
FP VII RESILIENT
FELICITAS D’Appolonia
Budget, Knowledge, People
Fraunhofer METHAPU FP VII
FP VI Wartsila
FP VI E-Hub
REAL-SOFC TNO
FP5 FP VII
Julich Research Marie Curie
Center ToK-Dev
PIP-SOFC
Rolls-Royce FP VI BioSOFC C3SOFC
Fuel Cell Rolls-
Systems Royce
Marie Curie FP VII
FP V
GTPOM IM-SOFC-GT ToK-IAP
EnSOFC
Rolls- Rolls-Royce today
Royce FP V
FP V
2000 2002 2004 2006 2008 2010 2012 2014 2016
6
Since 2004
7
Objectives
• The Thermochemical Power Group - TPG
• Introduction and motivation
• The Seaspoon concept and Seaspoon docking station
• Development roadmap
• H2boat startup company
8
OCEAN POWER: Wave motion
• Enormous theoretical potential
(2x106 TWh/year);
• Waves, tides, currents;
• Long-term predictable;
• Sustainable Development
• Powering remote areas
9
OCEAN POWER: Wave Climate on the planet
(values expressed in kW per meter of wave front)
10Objectives
• The Thermochemical Power Group - TPG
• Introduction and motivation
• The Seaspoon concept and Seaspoon docking station
• Development roadmap
• H2boat startup company
11The Seaspoon wave Microturbine
energy converter
UNIGE
Advanced Microturbines Srl
Thermochemical Power Group A spin‐off of the Italian institute of Technology
12Operating principles
• Linear wave theory
• Deep water assumptions The flat plate impresses on the rotor
• Circular orbits under water a surplus in rotational velocity;
surface Rotor blades velocity = rotor
tangential velocity + orbital motion
velocity
1
Pow ACp V 3
2
13The 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. 1405004 (2011)
14Orbital motion converter:
the Seaspoon concept
Numerical model Experimental Test
15The Seaspoon: Features
• Increased Conversion Efficiency
• Sea State Power adaptable
• High Operational Time
• Robustness
18The Seaspoon: Features
• INPUT Wave
• OUTPUT
Power Compressed Air
(civil/power energy) (military/autonomous)
19Power Range Positioning
Microturbine
30 ‐ 500W
20Seaspoon + 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
21SeaSpoon – On the Sea Test Campaign (start: Oct ‘15)
22UMV Docking Station
with Subsea Wireless Energy transfer
(0.1-10kW range)
Part of the PNRM’15 project
23Objectives
• The Thermochemical Power Group - TPG
• Introduction and motivation
• The Seaspoon concept and Seaspoon docking station
• Development roadmap
• H2boat startup company
24Development roadmap
Test in real sea Docking station
conditions for UMV (long
endurance)
The SEASPOON
concept
Experimental test with regular waves in
waveflume
25Objectives
• The Thermochemical Power Group - TPG
• Introduction and motivation
• The Seaspoon concept and Seaspoon docking station
• Development roadmap
• H2boat startup company
2627
Energy pack for ECOCOMFORT
WIND
3 - 8 kWh/day affordable Energy
ENERGY production from Renewable Energy SOLAR
Sources ENERGY
1.8 kWh/day
OnBoard Energy
DRAG consumption
ENERGY &
PROPULSION
More Energy
Less Volume than Batteries
The Right Weight at the
Right Place!!
28Energy pack for ECOCOMFORT
29Energy 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 Technology1
[1] V. Rosenband and A. Gany, Technion
30AUV 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
31Energy 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.
32The SEASPOON large size energy harvester
33Offshore renewable energy
generation and storage:
large size sea energy
harvesting
Prof. Alberto Traverso
alberto.traverso@unige.it
University of Genoa, Italy
Dipartimento di Ingegneria Meccanica - DIME
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