78780 20190709135530.0 doi 10.1016/j.enconman.2017.03.073 sideral 98631 ART-2017-98631 eng Zhang, C. Cascade system using both trough system and dish system for power generation 2017 Access copy available to the general public Unrestricted This paper represents a novel solar thermal cascade system using both trough and dish systems for power generation. An effective structure using the condensed fluid of Rankine cycle to cool the Stirling engines to use the heat released by Stirling engines was proposed. The cascade system model with different fluid circuits was developed. The models of some important components of the system, such as dish collector, trough collector and Stirling engine array, are presented with detail explanation in this paper. Corresponding stand-alone systems were also developed for comparison. Simulations were conducted with the models to find out efficiency difference between cascade system and corresponding stand-alone systems. The directions to increase the efficiency difference were also considered. Results show that the cascade system can achieve a higher efficiency with a high solar irradiance (>550 W/m2). The flow type of fluids between heating and cooling Stirling engine array is also required to concern on designing a cascade system with Stirling engine array. info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.377 2017 ENERGY & FUELS 11 / 97 = 0.113 2017 Q1 T1 THERMODYNAMICS 2 / 59 = 0.034 2017 Q1 T1 MECHANICS 3 / 134 = 0.022 2017 Q1 T1 2.537 2017 Energy Engineering and Power Technology 2017 Q1 Renewable Energy, Sustainability and the Environment 2017 Q1 Nuclear Energy and Engineering 2017 Q1 Fuel Technology 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Zhang, Y. (orcid)0000-0001-5473-6919 Arauzo, I. Universidad de Zaragoza Gao, W. Zou, C. 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 142 (2017), 494-503 Energy convers. manag. Energy Conversion and Management 0196-8904 383216 http://zaguan.unizar.es/record/78780/files/texto_completo.pdf Postprint 69695 http://zaguan.unizar.es/record/78780/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:78780 articulos driver 2019-07-09-12:02:14 ARTICLE