000079610 001__ 79610
000079610 005__ 20200716101419.0
000079610 0247_ $$2doi$$a10.1016/j.solener.2019.06.001
000079610 0248_ $$2sideral$$a112040
000079610 037__ $$aART-2019-112040
000079610 041__ $$aeng
000079610 100__ $$0(orcid)0000-0001-5561-5457$$aCollado Giménez, Francisco Javier$$uUniversidad de Zaragoza
000079610 245__ $$aA two-parameter aiming strategy to reduce and flatten the flux map in solar power tower plants
000079610 260__ $$c2019
000079610 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079610 5203_ $$aIn surrounding solar power tower plants, the collector field is designed with all the heliostats pointing to the cylindrical receiver equator to obtain maximum intercept. However, in commercial plants, the addition of thousands of energy spots at the same receiver level causes an excessively high peak heat flux of about 2 MW/m2. Therefore, this peak flux should be almost halved to avoid receiver problems due to creep and fatigue effects. The single-parameter aiming strategy (Vant-Hull, 2002) has already shown its ability to divide this high peak flux into two lower peaks; it consists in moving the hot spots up and down from the equator, in alternative heliostat rows, to create symmetric flux maps although they are clearly not very homogeneously distributed along the receiver height. In this work, a slight variation of the single-parameter aim strategy, simply proposing two aim parameters, has been successfully tested for a commercial solar power tower plant with a regular layout. The new two-parameter aiming strategy achieves not only reasonable peak flux values, but also an acceptably flattened flux profile and a slight reduction in spillage compared with the single-parameter strategy.
000079610 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/ENE2015-67518-R
000079610 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000079610 590__ $$a4.608$$b2019
000079610 592__ $$a1.537$$b2019
000079610 591__ $$aENERGY & FUELS$$b35 / 112 = 0.312$$c2019$$dQ2$$eT1
000079610 593__ $$aRenewable Energy, Sustainability and the Environment$$c2019$$dQ1
000079610 593__ $$aMaterials Science (miscellaneous)$$c2019$$dQ1
000079610 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000079610 700__ $$0(orcid)0000-0002-2226-7561$$aGuallar Paracuellos, Jesús$$uUniversidad de Zaragoza
000079610 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000079610 773__ $$g188 (2019), 185-189$$pSol. energy$$tSolar Energy$$x0038-092X
000079610 8564_ $$s793588$$uhttps://zaguan.unizar.es/record/79610/files/texto_completo.pdf$$yVersión publicada
000079610 8564_ $$s94541$$uhttps://zaguan.unizar.es/record/79610/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000079610 909CO $$ooai:zaguan.unizar.es:79610$$particulos$$pdriver
000079610 951__ $$a2020-07-16-08:38:58
000079610 980__ $$aARTICLE