Composite “LiCl/MWCNT” as Advanced Water Sorbent for Thermal Energy Storage: Sorption Dynamics | Sciact - CRIS-система Института катализа

Composite “LiCl/MWCNT” as Advanced Water Sorbent for Thermal Energy Storage: Sorption Dynamics Научная публикация

Журнал

Solar Energy Materials and Solar Cells
ISSN: 0927-0248

Вых. Данные

Год: 2018, Том: 176, Страницы: 273-279 Страниц : 7 DOI: 10.1016/j.solmat.2017.12.011

Ключевые слова

Composite sorbent “salt/matrix”, Lithium chloride, Multiwall carbon nanotubes, Sorption thermal energy storage, Water vapor

Авторы

Grekova Alexandra D. ^1,2 , Gordeeva Larisa G. ^1,2 , Lu Zisheng ³ , Wang Ruzhu ³ , Aristov Yuri I. ^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
3	Institute of Refrigeration and Cryogenics, Key Laboratory for Power Machinery and Engineering of M.O.E, Shanghai Jiao Tong University, Dongchuan Rd. 800#, Shanghai 200240, China

Информация о финансировании (2)

1	Российский фонд фундаментальных исследований	15-53-53096
2	Федеральное агентство научных организаций России	0303-2016-0013

Sorption heat storage (SHS) is a promising technology towards efficient use of renewable energy sources. Composite materials based on hygroscopic salts have a high potential for SHS in term of the heat storage capacity. Recently, a new sorbent “LiCl confined to Multi-Wall Carbon NanoTubes (MWCNT)” with enhanced storage capacity (1.7 kJ/g) has been suggested for SHS. This work addresses the dynamic study of water sorption on this material under operating conditions of a daily heat storage cycle. The study consists of three parts: (1) shaping the LiCl/MWCNT composite as grains (GP) and pellets with (PB) and without a binder (PP); (2) water sorption dynamics under conditions of the selected SHS cycle; (3) evaluation of the specific power achievable. Various configurations of the adsorbent bed were tested, namely, the loose grains GP placed on a metal support, and the pellets PB and PP glued to the support. The dynamic curves of water sorption obey an exponential equation. The PB configuration ensured a maximal specific power of 11.2 kW/kg (at 70% conversion) during the heat storage stage. During the heat release stage, the specific power is lower (5.4 kW/kg), probably due to a kinetic hindrance attributed to solid-solid transformation during the decomposition of LiCl·H2O complex towards the anhydrous salt. The high specific power along with the large heat storage capacity make the LiCl/MWCNT composite a promising new candidate for SHS.

Grekova A.D. , Gordeeva L.G. , Lu Z. , Wang R. , Aristov Y.I.
Composite “LiCl/MWCNT” as Advanced Water Sorbent for Thermal Energy Storage: Sorption Dynamics
Solar Energy Materials and Solar Cells. 2018. V.176. P.273-279. DOI: 10.1016/j.solmat.2017.12.011 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	6 окт. 2017 г.
Принята к публикации:	11 дек. 2017 г.
Опубликована online:	22 дек. 2017 г.
Опубликована в печати:	1 мар. 2018 г.

Web of science:	WOS:000423643800031
Scopus:	2-s2.0-85038216008
РИНЦ:	35478507
Chemical Abstracts:	2017:1994429
Chemical Abstracts (print):	170:453602
OpenAlex:	W2779489414

БД	Цитирований
Web of science	35
Scopus	38
РИНЦ	39
OpenAlex	38