Maximizing Efficiency in Two-step Solar-thermochemical Fuel Production

    Research output: Contribution to journalConference article

    13 Scopus citations

    Abstract

    Widespread solar fuel production depends on its economic viability, largely driven by the solar-to-fuel conversion efficiency. Herein, the material and energy requirements in two-step solar-thermochemical cyclesare considered.The need for advanced redox active materials is demonstrated, by considering the oxide mass flow requirements at a large scale. Two approaches are also identified for maximizing the efficiency: optimizing reaction temperatures, and minimizing the pressure in the thermal reduction step by staged thermal reduction. The results show that each approach individually, and especially the two in conjunction, result in significant efficiency gains.

    Original languageEnglish (US)
    Pages (from-to)1731-1740
    Number of pages10
    JournalEnergy Procedia
    Volume69
    DOIs
    StatePublished - Jan 1 2015
    EventInternational Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2014 - Beijing, China
    Duration: Sep 16 2014Sep 19 2014

    Keywords

    • carbon dioxide
    • Hydrogen
    • solar fuels
    • thermochemical

    ASJC Scopus subject areas

    • Energy(all)

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