Review on modeling and simulation of high temperature solid oxide electrolysis for hydrogen production

The solid oxide electrolysis cell (SOEC) is an advanced electrochemical energy conversion device characterized by high efficiency, simplicity, high flexibility, and environmental friendliness. Thus, it has been a research hotspot in the energy field internationally. However, the SOEC operates in a complex environment (high temperature, closed, etc.), and experimental research is expensive, some cannot even be completed. Comparatively, numerical simulation has the advantages of low cost and easy operation. In recent years, the modelling and simulation of SOEC for hydrogen production has made great progress. The working principle of SOEC were briefly introduced first. The fundamental theories i. e., electrochemistry, thermodynamics, and fluid dynamics, were then elaborated. The progress in simulation technology were summarized from the perspectives of steady and transient state, system, macro-and micro-level. The limitations of current research were also pointed out to provide useful reference for further development of the technology. More research work should be emphasized on model verification, applicability analysis, non-design working and dynamic operating characteristics. With the continuous improvement of simulation technique, it will provide significant support for the commercialization of SOEC technology. © 2021 Chemical Industry Press Co., Ltd.. All rights reserved.