Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 47, Issue 79, Pages 33619-33642Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.07.249
Keywords
Hydrogen production; Thermochemical water-splitting; cycle; Concentrated solar power; Thermal storage; Integrated system design
Categories
Funding
- Beijing Natural Science Founda- tion
- [3202014]
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The development of clean hydrogen production methods is crucial for large-scale applications, and the solar thermochemical water-splitting cycle shows promise in this regard. This review summarizes the state-of-the-art technologies and possible integration schemes for concentrated solar thermal, thermal storage, and thermochemical water-splitting cycles. Key issues and performance indicators are also discussed.
The development of clean hydrogen production methods is important for large-scale hydrogen production applications. The solar thermochemical water-splitting cycle is a promising method that uses the heat provided by solar collectors for clean, efficient, and large-scale hydrogen production. This review summarizes state-of-the-art concentrated solar thermal, thermal storage, and thermochemical water-splitting cycle technologies that can be used for system integration from the perspective of integrated design. Possible schemes for combining these three technologies are also presented. The key issues of the solar copper-chlorine (Cu-Cl) and sulfur-iodine (S-I) cycles, which are the most-studied cycles, have been summarized from system composition, operation strategy, thermal and economic performance, and multi-scenario applications. Moreover, existing design ideas, schemes, and performances of solar thermochemical water-splitting cycles are summarized. The energy efficiency of the solar thermochemical water-splitting cycle is 15-30%. The costs of the solar Cu-Cl and S-I hydrogen production systems are 1.63-9.47 $/kg H2 and 5.41-10.40 $/kg H2, respectively. This work also discusses the future challenges for system integration and offers an essential reference and guidance for building a clean, efficient, and large-scale hydrogen production system.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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