“LiCl/vermiculite - Methanol” as Working Pair for Adsorption Heat Storage: Adsorption Equilibrium and Dynamics
Научная публикация
| Общая информация |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Energy
ISSN: 0360-5442
, E-ISSN: 1873-6785
|
| Вых. Данные |
Год: 2019,
Том: 186,
Номер статьи
: 115775,
Страниц
: 8
DOI:
10.1016/j.energy.2019.07.105
|
| Ключевые слова |
Adsorption heat storage; Composite sorbent salt/matrix; Lithium chloride; Expanded vermiculite; Methanol |
| Авторы |
Grekova Alexandra
1,2
,
Strelova Svetlana
1,2
,
Gordeeva Larisa
1,2
,
Aristov Yuri
1,2
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Ac. Lavrentiev av. 5, Novosibirsk, 630090, Russia
|
| 2 |
Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russia
|
|
Информация о финансировании (2)
|
1
|
Федеральное агентство научных организаций России
|
0303-2016-0013
|
|
2
|
Российский фонд фундаментальных исследований
|
18-58-80047
|
Adsorption heat storage (AHS) is an energy-saving technology that allows low-temperature heat from renewable energy sources and various wastes to be utilized. One of the most important ways to increase the efficiency of the AHS units is to develop adsorbents with high heat storage density. This work addresses the methanol sorption on an innovative composite based on expanded vermiculite impregnated with LiCl (LiCl/Verm), which is suggested for adsorptive cycles for seasonal heat storage. Such a cycle is typical of regions with moderately cold winter, like the South of the Russian Federation as well as the Northern part of China, Europe etc. The study consists of: (1) synthesis and characterization of the composite; (2) investigation of equilibrium and dynamics of methanol sorption under operating conditions of the seasonal AHS cycle; (3) evaluation of the sorbent heat storage capacity and specific power. The heat storage capacity of LiCl/Verm under conditions of the tested cycle reaches 1.5 kJ/g. This value far exceeds that for conventional and innovative adsorbents. The specific power of 0.9 and 1.5 kW/kg can be realized during discharging and charging stages of the cycle, respectively. These findings demonstrate a high potential of the LiCl/Verm composite as methanol sorbent for AHS.