Numerical analysis of the solar reactor design for a photoelectrochemical hydrogen production system

Chia Lin Tseng, Chung Jen Tseng, Kai Yun Cheng, Lih Wu Hourng, Jyh Chen Chen, Ling Chia Weng, Shih Kuo Wu

研究成果: 雜誌貢獻期刊論文同行評審

6 引文 斯高帕斯(Scopus)

摘要

Heat transfer in a photoelectrochemical (PEC) hydrogen generation reactor system is studied numerically. Four different reactor designs are investigated in this work. Solar irradiation is spectrally separated into short and long wavelength parts depending on the energy band gap of the photoelectrode. The short wave energy is directed to the anode to generate electron and hole pairs, and the long wave energy is used for heating the reactor. Results indicate that the use of the excess long wave energy by careful reactor design can effectively increase the system efficiency. Comparing designs 1 and 4 under 6000 W/m 2 irradiation and a quantum efficiency of 30%, the enhancement of the solar-to-hydrogen efficiency is respectively 12.7% and 18.2% for electrodes with E g = 2.1 eV and 3.2 eV, such as Fe 2O 3 and TiO 2. Effects of several parameters on the PEC hydrogen reactor system are discussed in details.

原文???core.languages.en_GB???
頁(從 - 到)13053-13059
頁數7
期刊International Journal of Hydrogen Energy
37
發行號17
DOIs
出版狀態已出版 - 9月 2012

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