wavesax, wave energy converter - enea.it · energie rinnovabili marine: progresso tecnologico,...

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


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


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


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)


Structured Development Plan for Wave Energy

WaveSAX


OCEAN WAVE BASIN at HMRC (Hydraulics and Marine

Research Center) in Cork, Ireland (July 2014)

Configuration 2

(WaveSAX)

STAGE 1-2 Concept validation

(TRL3)


STAGE 3 Design validation (TRL 4)

LHEEA Hydrodynamic and Ocean

Engineering Tank (Sep 2015)


Ocean wave basin tests (1:5)


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


STAGE 4 Systems validation (TRL 5-6)

Power converter scheme


Automatic Control & Generation System

Tests in dry bench

BENCH


Automatic Control & Generation System

STAGE 4 Systems validation (TRL 5-6)


Objective : Turbine design optimization


Angular velocity control strategy


Objective : Control strategy optimization

Torque and velocity boundaries control

strategy

TEST : H=2,25 m , T=6,75s


TEST : H=2,25 m , T=6,75s

Speed control: w=160rpm , Kc =0,018 ; 0,016 ; 0,014


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


Mean turbine and electric power generation of the

device in real sea conditions


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 adapted for real sea condition tests

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)


Levelized Cost Of Energy (LCOE)

“Learning curve” per la tecnologia di estrazione di energia dal moto ondoso

L. Serri, E. Lembo 2016


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


Wave and current measurement station (Civitavecchia)


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 testing at the Port of Civitavecchia (1:1)

STAGE 5 Device Validation & Economics (TRL 7-8)


The FUTURE:

WaveSAX integration with electric vehicles


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.

[email protected]


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