Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Panagiotis Dafnakis"'
Autor:
Marcello Rava, Panagiotis Dafnakis, Vittorio Martini, Giuseppe Giorgi, Vincenzo Orlando, Giuliana Mattiazzo, Giovanni Bracco, Andrea Gulisano
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 3, p 397 (2022)
This work presents the Water Energy Point Absorber (WEPA), which is a heaving single-buoy point absorber optimized for a specific site off the west coast of Sardinia Island. The aim of the study is to present the optimization process undertaken to id
Externí odkaz:
https://doaj.org/article/e6cc77936c8042b09b95bc1504d09424
Autor:
Mauro Bonfanti, Andrew Hillis, Sergej Antonello Sirigu, Panagiotis Dafnakis, Giovanni Bracco, Giuliana Mattiazzo, Andrew Plummer
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 10, p 825 (2020)
Optimal control strategies represent a widespread solution to increase the extracted energy of a Wave Energy Converter (WEC). The aim is to bring the WEC into resonance enhancing the produced power without compromising its reliability and durability.
Externí odkaz:
https://doaj.org/article/6c3a23ad6afe4a68bdb10ec3e0a88f2a
Autor:
Sergej Antonello Sirigu, Mauro Bonfanti, Ermina Begovic, Carlo Bertorello, Panagiotis Dafnakis, Giuseppe Giorgi, Giovanni Bracco, Giuliana Mattiazzo
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 3, p 180 (2020)
A proper design of the mooring systems for Wave Energy Converters (WECs) requires an accurate investigation of both operating and extreme wave conditions. A careful analysis of these systems is required to design a mooring configuration that ensures
Externí odkaz:
https://doaj.org/article/f9730556042c43aaa9b439bc57c8fe16
Autor:
Giovanni Bracco, Mauro Bonfanti, Giuliana Mattiazzo, Panagiotis Dafnakis, Sergej Antonello Sirigu, Amneet Pal Singh Bhalla
In this paper we compare the heave, surge, and pitch dynamics of a submerged cylindrical point absorber, simulated using potential flow and fully-resolved computational fluid dynamics (CFD) models. The potential flow model is based on the time-domain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bb33e97d29b70388e8d7039d962c485
http://hdl.handle.net/11583/2845214
http://hdl.handle.net/11583/2845214
Autor:
Mauro Bonfanti, Bruno Paduano, Panagiotis Dafnakis, Sergej Antonello Sirigu, Giuliana Mattiazzo, Giovanni Bracco, Lorenzo Genuardi
Publikováno v:
Advances in Mechanism and Machine Science ISBN: 9783030201302
During the last years, considerable progress has been reached in energy research field focused on the renewable energy extraction technologies. In particular wave energy is one of the most important branches. Among the possibility, the Inertial Sea W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffabd317e5ec9414c6a13a0cd39bb821
http://hdl.handle.net/11583/2760841
http://hdl.handle.net/11583/2760841
Autor:
Giovanni Bracco, Amneet Pal Singh Bhalla, Peiman Naseradinmousavi, Luca Parrinello, Panagiotis Dafnakis, Edoardo Pasta, Giuliana Mattiazzo
Publikováno v:
Physics of Fluids. 32:113307
In this paper, we systematically investigate the feasibility of different extremum-seeking (ES) control and optimization schemes to improve the conversion efficiency of wave energy converters (WECs). Continuous-time and model-free ES schemes based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e0c2169f9ec6d3cf28d8b24b81816a3
https://doi.org/10.1063/5.0028500
https://doi.org/10.1063/5.0028500
Autor:
Andrew Plummer, Mauro Bonfanti, Andrew Hillis, Sergej Antonello Sirigu, Giuliana Mattiazzo, Panagiotis Dafnakis, Giovanni Bracco
Publikováno v:
Journal of Marine Science and Engineering, Vol 8, Iss 825, p 825 (2020)
Journal of Marine Science and Engineering
Volume 8
Issue 10
Journal of Marine Science and Engineering
Volume 8
Issue 10
Optimal control strategies represent a widespread solution to increase the extracted energy of a Wave Energy Converter (WEC). The aim is to bring the WEC into resonance enhancing the produced power without compromising its reliability and durability.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::082bab456530ed9750351e4144a5ec7c
https://doi.org/10.3390/jmse8100825
https://doi.org/10.3390/jmse8100825
Autor:
Panagiotis Dafnakis, Nishant Nangia, Giuliana Mattiazzo, Amneet Pal Singh Bhalla, Giovanni Bracco
Publikováno v:
Applied Ocean Research. 94:101932
In this paper we employ two implementations of the fictitious domain (FD) method to simulate water-entry and water-exit problems and demonstrate their ability to simulate practical marine engineering problems. In FD methods, the fluid momentum equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4215376a84c3543054a4faa196336ec
https://doi.org/10.1016/j.apor.2019.101932
https://doi.org/10.1016/j.apor.2019.101932
Autor:
Mauro Bonfanti, Giuliana Mattiazzo, Giovanni Bracco, Panagiotis Dafnakis, Sergej Antonello Sirigu, Stefano Brizzolara
Publikováno v:
OCEANS 2018 MTS/IEEE Charleston.
We introduce and discuss the principles of a new technology to increase the efficiency of oscillating wave energy converters: the Pitch Resonance Tuning Tanks (PRTT). This new technology is based on purposely sized U-tanks of naval derivation. The no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cac879c539bf2c6405e07cca8b9cfc3e
https://doi.org/10.1109/oceans.2018.8604591
https://doi.org/10.1109/oceans.2018.8604591
Autor:
Sergej Antonello Sirigu, Panagiotis Dafnakis, Mauro Bonfanti, Giovanni Bracco, Giuliana Mattiazzo
This paper presents a method to estimate the sea state PSD (Power Spectral Density) of the current wave climate, by using the measured floater motion and the body hydrodynamic response. The knowledge of PSD and the sea state synthetic parameters deri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d8e03d53eea4fc5e62de25e5eb14b70
http://hdl.handle.net/11583/2719023
http://hdl.handle.net/11583/2719023