Title

Annual average efficiency of a solar-thermochemical reactor

Publication Date

2014

Journal

Energy Procedia

Volume

49

First Page

1932

Last Page

1939

Department

Mechanical Engineering

Abstract

We report on results regarding the annual average efficiency of a recuperating packed particle bed reactor for solar-thermochemical hydrogen production via a two-step metal oxide cycle, using detailed numerical models. The key findings are that reactor efficiency is substantially flat as a function of direct normal irradiance, leading to an annual average efficiency almost equal to the design-point efficiency, and that ample high quality waste heat is available to make standalone operation feasible, including feedstock water production. This conclusion has far-reaching implications for solar-thermochemical hydrogen and fuel production in general.

DOI

https://doi.org/10.1016/j.egypro.2014.03.205

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