Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion

Oscillating water column (OWC) axial impulse turbines permit the conversion of wave energy into electrical power. Unlike other hydropower units with a mature and well established technology, such turbines have been recently developed, there are still few prototypes operating and therefore there is a...

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Authors: Luo, Yongyao, Presas Batlló, Alexandre|||0000-0002-6041-4139, Wang, Zhengwei
Format: article
Publication Date:2019
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/175990
Online Access:https://hdl.handle.net/2117/175990
https://dx.doi.org/10.3390/en12050939
Access Level:Open access
Keyword:Steam turbines
Hydrodynamics
Wave energy
Oscillating water column
Impulse turbine
Efficiency
Turbines de vapor
Hidrodinàmica
Àrees temàtiques de la UPC::Enginyeria mecànica
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
Àrees temàtiques de la UPC::Energies
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oai_identifier_str oai:upcommons.upc.edu:2117/175990
network_acronym_str ES
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repository_id_str
spelling Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversionLuo, YongyaoPresas Batlló, Alexandre|||0000-0002-6041-4139Wang, ZhengweiSteam turbinesHydrodynamicsWave energyOscillating water columnImpulse turbineEfficiencyTurbines de vaporHidrodinàmicaÀrees temàtiques de la UPC::Enginyeria mecànicaÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluidsÀrees temàtiques de la UPC::EnergiesOscillating water column (OWC) axial impulse turbines permit the conversion of wave energy into electrical power. Unlike other hydropower units with a mature and well established technology, such turbines have been recently developed, there are still few prototypes operating and therefore there is a large space for optimizing its design. Many recent studies focus on the improvement of the efficiency and transient characteristics by means of experimentation and also simulation techniques. In the present paper we use a 3D numerical simulation model (computational fluid dynamics model with ANSYS-Fluent 18) to analyze the influence of different geometrical parameters on the efficiency of the turbine, which have been less discussed yet. A reference configuration case has been used to validate our simulation model by comparing it with previous experimental results. Then, parametric variations in the guide vane number and type, gaps between the rotating and stationary part and hub to tip ratio have been introduced in the model to discuss the influence of these effects. It is found that some of these parameters have an important influence on the efficiency of the turbine and therefore, the results presented in this paper can help to optimize future designs of OWC impulse turbines20192019-03-1220202020-01-29journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/175990https://dx.doi.org/10.3390/en12050939reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-BY 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1759902026-05-27T15:37:01Z
dc.title.none.fl_str_mv Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
title Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
spellingShingle Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
Luo, Yongyao
Steam turbines
Hydrodynamics
Wave energy
Oscillating water column
Impulse turbine
Efficiency
Turbines de vapor
Hidrodinàmica
Àrees temàtiques de la UPC::Enginyeria mecànica
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
Àrees temàtiques de la UPC::Energies
title_short Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
title_full Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
title_fullStr Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
title_full_unstemmed Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
title_sort Numerical analysis of the influence of design parameters on the efficiency of an OWC axial impulse turbine for wave energy conversion
dc.creator.none.fl_str_mv Luo, Yongyao
Presas Batlló, Alexandre|||0000-0002-6041-4139
Wang, Zhengwei
author Luo, Yongyao
author_facet Luo, Yongyao
Presas Batlló, Alexandre|||0000-0002-6041-4139
Wang, Zhengwei
author_role author
author2 Presas Batlló, Alexandre|||0000-0002-6041-4139
Wang, Zhengwei
author2_role author
author
dc.subject.none.fl_str_mv Steam turbines
Hydrodynamics
Wave energy
Oscillating water column
Impulse turbine
Efficiency
Turbines de vapor
Hidrodinàmica
Àrees temàtiques de la UPC::Enginyeria mecànica
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
Àrees temàtiques de la UPC::Energies
topic Steam turbines
Hydrodynamics
Wave energy
Oscillating water column
Impulse turbine
Efficiency
Turbines de vapor
Hidrodinàmica
Àrees temàtiques de la UPC::Enginyeria mecànica
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
Àrees temàtiques de la UPC::Energies
description Oscillating water column (OWC) axial impulse turbines permit the conversion of wave energy into electrical power. Unlike other hydropower units with a mature and well established technology, such turbines have been recently developed, there are still few prototypes operating and therefore there is a large space for optimizing its design. Many recent studies focus on the improvement of the efficiency and transient characteristics by means of experimentation and also simulation techniques. In the present paper we use a 3D numerical simulation model (computational fluid dynamics model with ANSYS-Fluent 18) to analyze the influence of different geometrical parameters on the efficiency of the turbine, which have been less discussed yet. A reference configuration case has been used to validate our simulation model by comparing it with previous experimental results. Then, parametric variations in the guide vane number and type, gaps between the rotating and stationary part and hub to tip ratio have been introduced in the model to discuss the influence of these effects. It is found that some of these parameters have an important influence on the efficiency of the turbine and therefore, the results presented in this paper can help to optimize future designs of OWC impulse turbines
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-03-12
2020
2020-01-29
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/175990
https://dx.doi.org/10.3390/en12050939
url https://hdl.handle.net/2117/175990
https://dx.doi.org/10.3390/en12050939
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-BY 4.0 International
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-BY 4.0 International
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869423955881754624
score 15,300724

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