Experimental study on the hydrogen production with RED reactor powered by concentration gradient energy

被引：0

作者：

Xu S. ^{[1
]}

Liu Z. ^{[1
]}

Wu X. ^{[1
]}

Zhang Y. ^{[1
]}

Hu J. ^{[1
]}

Wu D. ^{[1
]}

Leng Q. ^{[1
]}

Jin D. ^{[1
]}

Wang P. ^{[1
]}

机构：

[1] Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian, 116024, Liaoning

来源：

Huagong Xuebao/CIESC Journal | 2020年 / 71卷 / 05期

关键词：

Concentration gradient energy; Energy conversion; Hydrogen production; Ion exchange; Membranes; Reverse electrodialysis;

D O I：

10.11949/0438-1157.20191468

中图分类号：

学科分类号：

摘要：

The hydrogen production technology by low-grade heat (LGH) is that the LGH is first converted to the concentration gradient energy (CGE) of solutions, and then it is converted to hydrogen energy by reverse electrodialysis (RED) reactor. In order to verify the hydrogen production with RED reactor powered by CGE, and to explore the influence of key operating parameters on the energy conversion process, an experimental system of hydrogen production with RED reactor powered by CGE was developed. The RED reactor in the system consisted of 40 membrane pairs and NaCl and NaOH aqueous solutions were used as the working solutions and the electrode rinse solution respectively. By changing the inlet concentration of diluted or concentrated solution, the flow velocity of solution and the output current, the effects of those parameters on the hydrogen production rate, hydrogen production and energy conversion efficiencies were investigated experimentally. The results showed that the variations of inlet concentrations and the flow velocity would significantly affect the output current of RED reactor. Under the short circuit condition of the external circuit, the larger the output current, the higher the hydrogen production rate and hydrogen production efficiency of the reactor, but the lower the energy conversion efficiency. © All Right Reserved.

引用

页码：2283 / 2291

页数：8

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