期刊
INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS
卷 158, 期 -, 页码 4617-4622出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2019.01.745
关键词
thermochemcial energy storage; CaO/CaCO3; discharging process; carbonator reactor; turbine
CaCO3/CaO thermochemical energy storage (TCES) system is one of the promising technologies to overcome mismatch between solar energy supplies and variable electricity demands mainly benefiting from its high energy density, superior reversibility and low cost. This TCES system is divided into three processes, energy charging, energy storage, and energy discharging. The discharging process is the most important due to the involvement of CO2 in the conversion from CaO to CaCO3 for power generation. In this paper, a simplified discharging process is proposed and the mathematic models are developed based on mass and energy balances. Theoretical investigation is carried out to explore the effect of different parameters (gas solid ratio, solid inventory in the carbonator, and carbonator pressure) on discharging performance, which is determined by expansion work of turbine and CaO conversion. The results indicate that the gas solid ratio is the most critical parameter in regard to expansion work of turbine, followed by carbonator pressure, while the effect of solid inventory in the carbonator is little. On the other hand, solid inventory is the most significant among three parameters for CaO conversion, and the effect of carbonator pressure can be ignored. (C) 2019 The Authors. Published by Elsevier Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据