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Energie Rinnovabili Marine: Progresso tecnologico,
prospettive e trend nel mercato delle tecnologie
puliteENEA - Roma, 17 Aprile 2018
WaveSAX, wave energy converterMaximo Peviani
Contents
• Bases of the conceptual design
• Numerical analysis of the device with Wells turbine
• Stage 1-2: Concept validation with 1:20 model (TRL3)
• Stage 3: Design validation with 1:5 model (TRL4-5)
• Device control system validation (TRL 6)
• Pilot case at the Mediterranean sea
• On going actions
WaveSAX, wave energy converter
WAVESAX bases of the conceptual design
• flexibility of the device to be installed in different structural
configurations (existing or to be constructed ad hoc), in order to reduce as
much as possible the costs of installation, maintenance and connection to the
grid
• replicability that allows the device to be installed in several number of
similar units, depending on the climatological and morphological conditions
of the coast
WaveSAX, wave energy converter
4
Pressure (left) and velocity
module(right) fields, simulated
with CFX
Innovative
oscillating water
column device
Wells turbines to be
coupled with the
device
Bi-directional solution OWC with the turbine working in the liquid phase
Agate, Amicarelli, Peviani (RdS 2013)
WaveSAX* best solution
WaveSAX, wave energy converter
5
Analysis of the device with Wells turbine
Simulation with variable discharge induced by the wave motion (Hs = 2m and T=7,5 s)
Lateral view
View of the rotorAgate, Amicarelli, Peviani, 2014
WaveSAX, wave energy converter
6Power absorbed by the turbine (W)
Pressure variation before
and after the rotor (Pa)
Velocity module (m/s)
Agate, Amicarelli, Peviani, 2014
Analysis of the device with Wells turbine
Simulation with variable discharge induced by the wave motion (Hs = 2m and T=7,5 s)
WaveSAX, wave energy converter
OCEAN WAVE BASIN at HMRC (Hydraulics and Marine
Research Center) in Cork, Ireland (July 2014)
Configuration 2
(WaveSAX)
STAGE 1-2 Concept validation
(TRL3)
WaveSAX, wave energy converter
STAGE 3 Design validation (TRL 4)
LHEEA Hydrodynamic and Ocean
Engineering Tank (Sep 2015)
WaveSAX, wave energy converter
Waves: Hs=2m and T=7s
Angular velocity (rpm) Torque (Nm)
Corresponding to H=0,4m ; T=3.13s and depth=0.3m
in the model
Peviani, Danelli, Bourdier, 2015
WaveSAX, wave energy converter
STAGE 4 Systems validation (TRL 5-6)
Power converter scheme
WaveSAX, wave energy converter
Automatic Control & Generation System
Angular velocity control strategy
WaveSAX, wave energy converter
Objective : Control strategy optimization
Torque and velocity boundaries control
strategy
TEST : H=2,25 m , T=6,75s
Speed control: w=160rpm , Kc =0,018 ; 0,016 ; 0,014
WaveSAX, wave energy converter
Total energy to the battery terminals (left); turbine speed (right up) and
current at the battery terminals (right down) ) for kc=0,014 during 10sec
period
WaveSAX, wave energy converter
Mean turbine and electric power generation of the
device in real sea conditions
WaveSAX, wave energy converter
Typical MED wave climate
21
Estimated nominal power of the
turbine (each device)
WAVESAX = 12 – 18 KW
Estimated energy production (each
device)
WAVESAX = 6 – 10 MWh/year
Estimated energy production
WaveSAX, wave energy converter
LCA of the WaveSAX device
0,0123 kg Steel, chromium steel 18/8 {RER}| steel production,
62 %
0,000116 kg Capacitor, auxilliaries and
energy use {GLO}|
7,21 %
0,000828 kg Battery, Li-ion, rechargeable, prismatic {GLO}|
8,69 %
0,000105 kg Permanent
magnet, for electric motor {GLO}|
6,35 %
1,9E-6 p 06 Generatore Alxion SCN_01-02
6,32 %
1,9E-6 p 07.2 Sistema di accumulo
18,8 %
1,9E-6 p 03 Condotta presa a mare SCN01.1
29,1 %
1,9E-6 p 04 Struttura portante del
sistema SCN01.1
7,28 %
1,9E-6 p 10 Colonna di oscillazione SCN01.1
14,6 %
1,9E-6 p 00 PTO
components SCN1.1
28,8 %
1,9E-6 p 00 Structural components SCN1.1
64,3 %
3,6 MJ Electricity at WaveSax- RSE SCN01.1
100 %
1,9E-6 p 00 Assemblaggio e installazione SCN1
6,31 %
Life Cycle Assessment (LCA)
WaveSAX, wave energy converter
Levelized Cost Of Energy (LCOE)
“Learning curve” per la tecnologia di estrazione di energia dal moto ondoso
L. Serri, E. Lembo 2016
WaveSAX, wave energy converter
Wave power and electric generation forecast system
Download dei dati di
previsione al largo dal
modello CMEMS
Generazione del file di
INPUT delle condizioni
d’onda al largo
modello
SWAN
FASE 1
FASE 2
Griglia di
calcolo
Ulteriori
parametri
Batimetria
Linea di costa ed
ostacoli
Calcolo di Hmax nel sito di
installazione del WaveSAX
FASE 3
Hmax > Hsoglia
Messaggio di
allerta per la
messa in sicurezza
del WaveSAX
Previsione
dell’energia
generata dal
WaveSAX
No Yes
WaveSAX, wave energy converter
Sontek Mini ADP-1,5 MHz
Installation on RSE off-shore wind station
(Capo Granitola)
Serri, Lembo, Cataldo, et al. 2013-15
MOBI - Offshore wind and wave measurement station (Capo
Granitola)
WaveSAX, wave energy converter
WAVESAX testing at the Port of Civitavecchia (1:1)
STAGE 5 Device Validation & Economics (TRL 7-8)
WaveSAX, wave energy converter
Many thanks!
**************
This work has been financed by the Research Fund for the Italian Electrical System under the Contract Agreement between RSE S.p.A. and the Ministry of Economic Development - General Directorate for Nuclear Energy, Renewable
Energy and Energy Efficiency , stipulated on July 29, 2009, in compliance with the Decree of November 11, 2012.
WaveSAX, wave energy converter