Dynamic Improvement and Systematic Optimization of Low- and Mid-Temperature Solar-Steam Reforming of Methanol Complementary Energy Supply Systems

被引：0

作者：

Zhang, Yi-Dian ^{[1
,2
]}

Zhao, Ya-Wen ^{[1
]}

Li, Wen-Jia ^{[1
,2
]}

Hao, Yong ^{[1
,2
]}

机构：

[1] Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing,100190, China

[2] University of Chinese Academy of Sciences, Beijing,100049, China

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2021年 / 42卷 / 02期

关键词：

Ternary alloys - Copper alloys - II-VI semiconductors - Nanocatalysts - Proton exchange membrane fuel cells (PEMFC) - Solar power generation - Hydrogen production - Methanol - Steam reforming - Perovskite - Zinc alloys - Aluminum alloys;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Energy supply systems of low- and mid- temperature solar-steam reforming of methanol (SRM) complementary hydrogen production and solar-SRM complementary power generation with high temperature proton exchange membrane fuel cell (HT-PEMFC) were developed and analyzed in this study to optimize the performances. To improve the dynamic performance, a nanocatalyst for SRM was designed and performances such as conversion rate and selectivity were tested with varied reactant flow rate and reaction temperature. The complementary systems were simulated based on the results of the dynamic experiment. It showed that with a direct normal irradiance of 1000 W•m-2 and a reactant flow rate of 1.70 mL•min-1, solar-to-hydrogen efficiency and total efficiency of the hydrogen production system using the nanocatalyst were 52.5% and 87.5%, respectively, which were 12.4 and 3.3 percentage points higher than those with commercial CuZnAl oxides catalyst. The product gas was then passed into a HT-PEMFC for power generation. Numerical results showed that with a direct normal irradiance of 1000 W•m-2 and a flow rate of 1.75 mL•min-1, the net solar power generation efficiency of the nanocatalyst system was 40.9%, 10.4 percentage points higher than the system using CuZnAl oxides catalyst. © 2021, Science Press. All right reserved.

引用

页码：269 / 279