Experimental and numerical investigation of sulfuric acid decomposition for hydrogen production via iodine–sulfur cycle

Gao Q.; Sun Q.; Chen S.Peng W.Zhang P.

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Experimental and numerical investigation of sulfuric acid decomposition for hydrogen production via iodine–sulfur cycle

机译：Experimental and numerical investigation of sulfuric acid decomposition for hydrogen production via iodine–sulfur cycle

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? 2023 Elsevier LtdIn the context of global warming and the greenhouse effect, the iodine–sulfur cycle is an important method of producing hydrogen on a large scale with low carbon emissions using nuclear energy for future applications. The sulfuric acid decomposition reaction is a key step in this process. A sulfuric acid decomposer with good performance usually has the characteristics of high decomposition rate, small pressure drop loss and reasonable temperature distribution, which can ensure the efficient and stable process of sulfuric acid decomposition. Therefore, an accurate evaluation of the performance of the sulfuric acid decomposer unit and the reproducibility of the whole process is of utmost importance for designing and engineering an actual system for hydrogen generation. In this work, two sets of experimental systems were designed to measure the important kinetic parameters of sulfuric acid decomposition reaction and to determine the thermal hydraulics and chemical reaction performance indicators of the system. Then, a multi-field coupling model in which the phase change and chemical reactions were coupled by user-defined functions was developed based on the experimental kinetic parameters to account for the whole process. The thermal–hydraulic characteristics and the chemical reaction indexes predicted by the model are in good agreement with the experimental results. The maximum errors of the sulfuric acid decomposition fraction and pressure drop do not exceed 5% and 10%, respectively. Overall, this work provided a complete model for predicting the performance of the sulfuric acid decomposer.

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《Energy conversion & management》 |2023年第8期|1.1-1.15|共15页
作者
Gao Q.; Sun Q.; Chen S.Peng W.Zhang P.;
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作者单位

Institute of Nuclear and New Energy Technology Cooperation Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University;

CHINERGY CO. LTD;

Institute of Nuclear and New Energy Technology Cooperation Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University||Tsinghua University-Zhang Jiagang JoInstitute of Nuclear and New Energy Technology Cooperation Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua UniversityInstitute of Nuclear and New Energy Te;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
High temperature gas-cooled reactor; Hydrogen production; Iodine–sulfur cycle; Multi-field coupling model; Sulfuric acid decomposition;

Experimental and numerical investigation of sulfuric acid decomposition for hydrogen production via iodine–sulfur cycle

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