A review of static and dynamic heliostat wind loads

dc.contributor.authorEmes, Matthew
dc.contributor.authorJafari, Azadeh
dc.contributor.authorPfahl, Andreas
dc.contributor.authorCoventry, Joe
dc.contributor.authorArjomandi, Maziar
dc.date.accessioned2023-08-21T04:31:44Z
dc.date.issued2021
dc.date.updated2022-07-24T08:19:12Z
dc.description.abstractAccurate estimation of the static and dynamic wind loads on heliostats based on detailed measurement and characterisation of turbulence is crucial to avoid structural failure and reduce the cost of the structural heliostat components. Wind load predictions for heliostats are not specified in design standards for buildings because of a heliostat's non-standard shape and the variations of wind velocity and turbulence in the lowest 10 m of the atmospheric boundary layer (ABL). This paper reviews the static and dynamic wind loads on heliostats in the most unfavourable operating and stow positions, with a focus on the aerodynamic effects related to the heliostat structural component geometry, turbulence parameters in the ABL and field spacing. An increased resolution of field-scale wind measurements at heliostat field sites is recommended to fully characterise the ABL turbulence, as the high-intensity gusts over shorter durations at heights below 10 m lead to high-amplitude displacements with larger frequencies than observed in standard building structures. Increased understanding and development of aerodynamic wind load predictions for heliostats, based on their critical scaling parameters and local wind conditions, would increase the accuracy of annual field efficiency models through an improved resolution of operating load data and reduce the capital cost of structural components in power tower plants.en_AU
dc.description.sponsorshipThe authors acknowledge the support from the Australian Solar Thermal Research Institute (ASTRI) and funding provided by the Australian Renewable Energy Agency (ARENA) Grant 1-SRI002.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0038-092Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/296696
dc.language.isoen_AUen_AU
dc.publisherElsevieren_AU
dc.rights© 2021 International Solar Energy Society. Published by Elsevier Ltd.en_AU
dc.sourceSolar Energyen_AU
dc.subjectHeliostaten_AU
dc.subjectWind loaden_AU
dc.subjectAerodynamicsen_AU
dc.subjectAtmospheric boundary layeren_AU
dc.subjectTurbulenceen_AU
dc.titleA review of static and dynamic heliostat wind loadsen_AU
dc.typeJournal articleen_AU
local.bibliographicCitation.lastpage82en_AU
local.bibliographicCitation.startpage60en_AU
local.contributor.affiliationEmes, Matthew, University of Adelaideen_AU
local.contributor.affiliationJafari, Azadeh, University of Adelaideen_AU
local.contributor.affiliationPfahl, Andreas, German Aerospace Centeren_AU
local.contributor.affiliationCoventry, Joe, College of Engineering and Computer Science, ANUen_AU
local.contributor.affiliationArjomandi, Maziar, University of Adelaideen_AU
local.contributor.authoremailu4005930@anu.edu.auen_AU
local.contributor.authoruidCoventry, Joe, u4005930en_AU
local.description.embargo2099-12-31
local.description.notesImported from ARIESen_AU
local.identifier.absfor400803 - Electrical energy generation (incl. renewables, excl. photovoltaics)en_AU
local.identifier.absseo170805 - Solar-thermal energyen_AU
local.identifier.ariespublicationa383154xPUB21110en_AU
local.identifier.citationvolume225en_AU
local.identifier.doi10.1016/j.solener.2021.07.014en_AU
local.identifier.scopusID2-s2.0-85110168781
local.identifier.thomsonIDWOS:000688293000008
local.identifier.uidSubmittedBya383154en_AU
local.publisher.urlhttps://www.elsevier.com/en-auen_AU
local.type.statusPublished Versionen_AU

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