Giovanni Bracco

ORCID: 0000-0002-4793-202X
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About
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Research Areas
  • Wave and Wind Energy Systems
  • Fluid Dynamics and Vibration Analysis
  • Wind Energy Research and Development
  • Coastal and Marine Dynamics
  • Underwater Vehicles and Communication Systems
  • Fluid Dynamics Simulations and Interactions
  • Maritime Transport Emissions and Efficiency
  • Microgrid Control and Optimization
  • Marine and Offshore Engineering Studies
  • Earthquake and Tsunami Effects
  • Frequency Control in Power Systems
  • Spacecraft and Cryogenic Technologies
  • Ocean Waves and Remote Sensing
  • Offshore Engineering and Technologies
  • Magnetic Bearings and Levitation Dynamics
  • Advanced Numerical Methods in Computational Mathematics
  • Energy Harvesting in Wireless Networks
  • Hybrid Renewable Energy Systems
  • HVDC Systems and Fault Protection
  • Tropical and Extratropical Cyclones Research
  • Methane Hydrates and Related Phenomena
  • Integrated Energy Systems Optimization
  • Hydraulic and Pneumatic Systems
  • Marine and coastal plant biology
  • Lattice Boltzmann Simulation Studies

Polytechnic University of Turin
2015-2024

University of Turin
2023

San Diego State University
2020

Osservatorio Astrofisico di Torino
2015

Ospedale "Floraspe Renzetti"
2014

Floating offshore wind represents a new frontier of renewable energies. The absence fixed structure allows exploiting potential in deep seas, like the Atlantic Ocean and Mediterranean Sea, characterized by high availability potential. However, floating system, which includes an turbine, platform, moorings, anchors, electrical requires very capital investments: one most relevant cost items is substructure. This work focuses on choice platform that minimizes global weight, order to reduce...

10.3390/jmse8110835 article EN cc-by Journal of Marine Science and Engineering 2020-10-23

In recent years, numerous projects for floating PV systems have been developed. These plants of various sizes mainly installed on enclosed lakes or basins characterised by the absence external forcing related to waves and currents. However, offshore installation would allow development such in areas where land is not available, as islands. This paper analyses state art PV, describes design a platform numerical model evaluate system performance an environment. The case study island Lampedusa...

10.3390/en15238804 article EN cc-by Energies 2022-11-22

10.1016/j.mechmachtheory.2011.05.012 article EN Mechanism and Machine Theory 2011-06-27

Although sea and ocean waves have been widely acknowledged to the potential of providing sustainable renewable energy, emergence a self-sufficient mature industry is still lacking. An essential condition for reaching economic viability minimise cost electricity, as opposed simply maximising converted energy at early design stages. One tools empowering developers follow such virtuous pathway techno-economic optimisation. The purpose this paper perform holistic optimisation PeWEC (pendulum...

10.3390/jmse8070482 article EN cc-by Journal of Marine Science and Engineering 2020-06-30

In the past few years, advanced technologies such as floating offshore wind turbines (FOWT) and wave energy converters (WECs) have been developed. As demonstrated by innovative hybrid platform Poseidon, feasibility of combining has already explored. Furthermore, diversification renewable reduces power fluctuations lowers investment costs. This paper focuses on development an integrated creation a numerical model to evaluate system performance for Belmullet site. The novel concept consists...

10.3390/en15082739 article EN cc-by Energies 2022-04-08

Marine energy represents a very promising source of available worldwide. Although this is in several forms, wave the more widespread characterized by high power density. In order to exploit from waves, numerous systems have been designed and commercialized. The Inertial Sea Wave Energy Converter device based on floating body slack-moored seabed, using gyroscope as reference frame produce electric power. This paper describes design proposed converter equipped with two linear tubular...

10.1109/tia.2013.2291939 article EN IEEE Transactions on Industry Applications 2014-01-31

The wave energy sector has faced enormous technological improvements over the last five decades, however, due to complexity of hydrodynamic processes, current numerical models still have limitations in predicting relevant phenomena. In particular, floating spar-type converters are prone large undesirable roll and pitch amplitudes caused by a dynamic instability induced parametric resonance. Detecting this phenomenon accurately is essential as it impacts drastically on power extraction,...

10.1016/j.apenergy.2020.115421 article EN cc-by Applied Energy 2020-07-10

A proper design of the mooring systems for Wave Energy Converters (WECs) requires an accurate investigation both operating and extreme wave conditions. careful analysis these is required to a configuration that ensures station keeping, reliability, maintainability, low costs, without affecting WEC dynamics. In this context, experimental campaign on 1:20 scaled prototype ISWEC (Inertial Sea Converter), focusing influence layout loads in conditions, presented discussed. Two configurations...

10.3390/jmse8030180 article EN cc-by Journal of Marine Science and Engineering 2020-03-07

Wind power is emerging as one of the most sustainable and low-cost options for energy production. Far-offshore floating wind turbines are attractive in view exploiting high availability sites while minimizing environmental landscape impact. In last few years, some offshore farms were deployed Northern Europe technology validation, with very promising results. At present time, however, no farm installations have been developed Mediterranean Sea. The aim this work to comprehensively model an...

10.3390/en14010248 article EN cc-by Energies 2021-01-05

Abstract Computationally fast and accurate mathematical models are essential for effective design, optimization, control of wave energy converters. However, the energy-maximising strategy, reaching economic viability, inevitably leads to violation linearising assumptions, so common linear become unreliable potentially unrealistic. Partially nonlinear based on computation Froude–Krylov forces with respect instantaneous wetted surface promising popular alternatives, but they still too slow...

10.1007/s40722-021-00212-z article EN cc-by Journal of Ocean Engineering and Marine Energy 2021-08-11

Wave Energy is a widespread, reliable renewable energy source. The early study on dates back in the 70’s, with particular effort last and present decade to make Converters (WECs) more profitable predictable. PeWEC (Pendulum Converter) pendulum-based WEC. research activities described work aim develop pendulum converter for Mediterranean Sea, where waves are shorter, thus higher frequency compared ocean waves, characteristic well agreeing response. mechanical equations of device developed...

10.1142/s1758825117500247 article EN cc-by International Journal of Applied Mechanics 2017-02-17

During the optimization phase of a wave energy converter (WEC), it is essential to be able rely on model that both fast and accurate. In this regard, Computational Fluid Dynamic (CFD) with Reynolds Averaged Navier–Stokes (RANS) approach not suitable for studies, given its computational cost, while methods based potential theory are but accurate enough. A good compromise can found in boundary element (BEMs), theory, addition non-linearities. This paper deals identification viscous parameters...

10.3390/jmse8050355 article EN cc-by Journal of Marine Science and Engineering 2020-05-17

The energy innovation scenario sees hybrid wind-wave platforms as a promising technology for reducing the variability of power output and minimization cost offshore marine renewable installations. This article presents model that describes installation 5 MW wind turbine on floating platform designed by Fincantieri equipped with gyroscopic stabilization. use gyros allows delivery stabilization damping wave induced motion floater at same time producing extra power. Shetland Island was chosen...

10.3390/jmse8060439 article EN cc-by Journal of Marine Science and Engineering 2020-06-15

Optimal control strategies represent a widespread solution to increase the extracted energy of Wave Energy Converter (WEC). The aim is bring WEC into resonance enhancing produced power without compromising its reliability and durability. Most algorithms proposed in literature require for knowledge Excitation Force (WEF) generated from incoming wave field. In practice, WEFs are unknown, an estimate must be used. This paper investigates WEF estimation non-linear WEC. A model-based model-free...

10.3390/jmse8100825 article EN cc-by Journal of Marine Science and Engineering 2020-10-21

Nowadays, energy policymakers are asked to develop strategies ensure an affordable clean supply as well minimizing investment risks. In addition, the rise of several community engagement schemes and uptake user-scale technologies introduce uncertainties that may result in a disruptive factor for systems evolution. This paper introduces novel scenario analysis approach local planning supports investors prioritizing new renewable power plant investments, addressing risks deriving from...

10.3390/en15031103 article EN cc-by Energies 2022-02-02

Floating offshore wind turbines (FOWTs) are a rapidly developing technology, but still, need to gain economic competitiveness obtain market acceptance. The reduction of the structural cost floating platform represents one main targets reach an optimal design in initial process. This paper proposes efficient optimisation tool that could be applied any turbine optimise geometry parameters. In this study, OC3 spar buoy concept is considered as example, where stability and dynamic performance...

10.1016/j.egyr.2022.07.036 article EN cc-by-nc-nd Energy Reports 2022-07-21
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