Radiative intensity regulation to match energy conversion on demand in solar methane dry reforming to improve solar to fuel conversion efficiency

Xuhang Shi, Jintao Song, Ziming Cheng, Huaxu Liang, Yan Dong, Fuqiang Wang and Wenjing Zhang

Renewable Energy, 2023, vol. 207, issue C, 436-446

Abstract: The mismatch between radiative intensity field and energy required for solar thermochemical reaction can cause serious heat waste and reduce energy conversion efficiency. To improve the energy conversion efficiency of solar to fuel, the radiative intensity regulation method to match energy conversion on demand in solar methane dry reforming is proposed in this study. The design of solar spots and biomimetic leaf hierarchical porous structures is investigated and optimized, which can realize a better radiative intensity field matching. The experimental and numerical studies show that, by using the method of regulating radiative intensity field to match energy conversion on-demand in solar thermochemical reactor, the methane conversion rate and solar thermochemical energy storage efficiency can be increased by 4.6% and 6.1%, respectively. The ideal synergy between real temperature field distribution and theoretical temperature requirement is perfectly achieved.

Keywords: Solar to fuel; Methane dry reforming; Radiative transfer; Solar energy; Biomimetic; Energy conversion matching (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:207:y:2023:i:c:p:436-446

DOI: 10.1016/j.renene.2023.03.024

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