caa a22 4500 528783769 20181218052616.0 cr unu---uuuuu 180924e201808 xx s 000 0 eng 10.3929/ethz-b-000270242 doi 10.1016/j.solener.2018.05.085 doi (ETHRESEARCH)oai:www.research-collection.ethz.ch:20.500.11850/282617 Optical design and experimental characterization of a solar concentrating dish system for fuel production via thermochemical redox cycles [Elektronische Daten] [Fabian Dähler, Michael Wild, Remo Schäppi, Philipp Haueter, Thomas Cooper, Philipp Good, Carlos Larrea, Max Schmitz, Philipp Furler, Aldo Steinfeld] Sol. energy Open access ethresearch The design, fabrication, and on-sun characterization of a solar dish concentrating system for performing the two-step thermochemical redox splitting of H2O and CO2 is presented. It comprises a primary sun-tracking 4.4 m-dia. solar dish concentrator coupled to a secondary planar rotating reflector. This optical arrangement enables the operation of two (or more) solar reactors side-by-side for performing both redox reactions simultaneously by alternating the solar input between them while making continuous and uninterrupted use of the incoming concentrated sunlight. On-sun characterization of the complete concentrating system revealed a peak solar concentration ratio of 5010 suns and an average of 2710 suns measured over the 30 mm-radius aperture of the solar reactor. A detailed optical analysis elucidates measures to increase the optical efficiency and concentration ratio. Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 ethresearch Solar ethresearch Concentrator ethresearch Optics ethresearch Thermochemical ethresearch Redox ethresearch Fuel ethresearch Reactor ethresearch Dähler Fabian joint author Wild Michael joint author Schäppi Remo joint author Haueter Philipp joint author Cooper Thomas joint author Good Philipp joint author Larrea Carlos joint author Schmitz Max joint author Furler Philipp joint author Steinfeld Aldo joint author Solar Energy Kidlington : Elsevier 170, pp. 568-575 0038-092X http://hdl.handle.net/20.500.11850/282617 text/html WWW-Backlink auf das Repository (Open access) 1 Journal Article ethresearch ETHRESEARCH 856 40 http://hdl.handle.net/20.500.11850/282617 text/html WWW-Backlink auf das Repository (Open access) ETHRESEARCH 700 1- Dähler Fabian joint author ETHRESEARCH 700 1- Wild Michael joint author ETHRESEARCH 700 1- Schäppi Remo joint author ETHRESEARCH 700 1- Haueter Philipp joint author ETHRESEARCH 700 1- Cooper Thomas joint author ETHRESEARCH 700 1- Good Philipp joint author ETHRESEARCH 700 1- Larrea Carlos joint author ETHRESEARCH 700 1- Schmitz Max joint author ETHRESEARCH 700 1- Furler Philipp joint author ETHRESEARCH 700 1- Steinfeld Aldo joint author ETHRESEARCH 773 0- Solar Energy Kidlington : Elsevier 170, pp. 568-575 0038-092X BK010053 XK010053 XK010000 ETHRESEARCH ETHRESEARCH ETHRESEARCH Journal Article Open access