Abstract:

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.

Key words: renewable energy, SOEC, electrolysis, hydrogen production, simulation

摘要：

固体氧化物电解池（solid oxide electrolysis cell, SOEC）是一种先进的电化学能量转化装置，具有高效、简单、灵活、环境友好等特点，是目前国际能源领域的研究热点。但SOEC在高温、密闭的复杂环境下运行，实验研究代价高昂，有些甚至无法完成。相对来说，数值模拟具有成本低、易操作的显著优势。近年来，有关SOEC电解制氢的模拟研究取得了较大进展。本文在简要介绍SOEC工作原理的基础上，从电化学、热力学和流体动力学等方面阐述了模拟基础理论，重点从稳态与瞬态及系统、宏观与微观的角度总结了高温电解制氢模拟技术的研究进展，进而指出当前研究存在的局限性。SOEC电解制氢模拟还需从数学模型验证、适用性分析、系统非设计工况和动态运行特性等方面加强研究工作。随着技术的不断发展与完善，数值模拟必将为SOEC技术商业化提供关键支撑。

关键词: 再生能源, 固体氧化物电解池, 电解, 制氢, 模拟