000048182 001__ 48182 000048182 005__ 20210121114456.0 000048182 0247_ $$2doi$$a10.3390/en8021042 000048182 0248_ $$2sideral$$a88743 000048182 037__ $$aART-2015-88743 000048182 041__ $$aeng 000048182 100__ $$0(orcid)0000-0002-1055-2189$$aGil, Rubén$$uUniversidad de Zaragoza 000048182 245__ $$aThermal Model of a Dish Stirling Cavity-Receiver 000048182 260__ $$c2015 000048182 5060_ $$aAccess copy available to the general public$$fUnrestricted 000048182 5203_ $$aThis paper presents a thermal model for a dish Stirling cavity based on the finite differences method. This model is a theoretical tool to optimize the cavity in terms of thermal efficiency. One of the main outcomes of this work is the evaluation of radiative exchange using the radiosity method; for that purpose, the view factors of all surfaces involved have been accurately calculated. Moreover, this model enables the variation of the cavity and receiver dimensions and the materials to determine the optimal cavity design. The tool has been used to study the cavity optimization regarding geometry parameters and material properties. Receiver absorptivity has been identified as the most influential property of the materials. The optimal aperture height depends on the minimum focal space. 000048182 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000048182 590__ $$a2.077$$b2015 000048182 591__ $$aENERGY & FUELS$$b43 / 88 = 0.489$$c2015$$dQ2$$eT2 000048182 592__ $$a0.785$$b2015 000048182 593__ $$aEnergy (miscellaneous)$$c2015$$dQ1 000048182 593__ $$aEnergy Engineering and Power Technology$$c2015$$dQ1 000048182 593__ $$aElectrical and Electronic Engineering$$c2015$$dQ1 000048182 593__ $$aRenewable Energy, Sustainability and the Environment$$c2015$$dQ2 000048182 593__ $$aControl and Optimization$$c2015$$dQ2 000048182 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000048182 700__ $$aMonné, Carlos 000048182 700__ $$aBernal, Nuria 000048182 700__ $$0(orcid)0000-0002-7893-698X$$aMuñoz, Mariano$$uUniversidad de Zaragoza 000048182 700__ $$0(orcid)0000-0002-6508-6998$$aMoreno, Francisco$$uUniversidad de Zaragoza 000048182 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi. 000048182 773__ $$g8, 2 (2015), 1043-1057$$pENERGIES$$tEnergies$$x1996-1073 000048182 8564_ $$s1629797$$uhttps://zaguan.unizar.es/record/48182/files/texto_completo.pdf$$yVersión publicada 000048182 8564_ $$s86111$$uhttps://zaguan.unizar.es/record/48182/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000048182 909CO $$ooai:zaguan.unizar.es:48182$$particulos$$pdriver 000048182 951__ $$a2021-01-21-10:48:23 000048182 980__ $$aARTICLE