Optimized design of Ca-based thermochemical heat storage materials for concentrated solar power

被引：25

作者：

Yang, Lili ^{[1
,2
]}

Huang, Guan ^{[1
]}

Huang, Zhiqing ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Sch Energy & Power Engn, Nanjing 210016, Peoples R China

[2] Minist Ind & Informat Technol, Key Lab Thermal Management & Energy Utilizat Airc, Beijing, Peoples R China

来源：

JOURNAL OF ENERGY STORAGE | 2021年 / 43卷 / 43期

基金：

中国国家自然科学基金;

关键词：

Thermochemical heat storage; Ca-Looping; Concentrated solar power; Absorption; Cyclic stability; CALCIUM-LOOPING CONDITIONS; ENERGY-STORAGE; PERFORMANCE; SORBENTS; SYSTEMS; MICROSPHERES; CALCINATION;

D O I：

10.1016/j.est.2021.103236

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Ca-Looping concentrated solar power with direct radiation absorption mode is promising, provided that the low light absorption of CaCO3/CaO can be solved. In this work, Ca-based thermochemical materials (CTMs) doped with Fe and Mn elements were synthesized by the sol-gel method. The added Fe and Mn elements increase the absorption of CTMs, while also effectively improving cyclic stability. Calcination experiments show that Ca0.15Fe2.85O4 can be used as additional materials to improve the absorption of CaCO3/CaO, and in particular, the near IR region. Additional findings suggest that morphology and cyclic stability of the materials are closely related. The porosity and pore size of CaCO3/CaO was also controlled by adjusting the amount of citric acid used during processing.

引用

页数：11

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