Research output: Contribution to journal › Article › peer-review
Experimental characterization of the LiCl/vermiculite composite for sorption heat storage applications. / Brancato, Vincenza; Gordeeva, Larisa G.; Sapienza, Alessio et al.
In: International Journal of Refrigeration, Vol. 105, 01.09.2019, p. 92-100.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Experimental characterization of the LiCl/vermiculite composite for sorption heat storage applications
AU - Brancato, Vincenza
AU - Gordeeva, Larisa G.
AU - Sapienza, Alessio
AU - Palomba, Valeria
AU - Vasta, Salvatore
AU - Grekova, Alexandra D.
AU - Frazzica, Andrea
AU - Aristov, Yuri I.
N1 - Publisher Copyright: © 2018 Elsevier Ltd and IIR
PY - 2019/9/1
Y1 - 2019/9/1
N2 - The present paper reports about the experimental characterization of a recently developed composite sorbent of water, LiCl/vermiculite, for thermal energy storage applications. The sorption ability as well as the thermal storage capacity (TSC) of the material itself were tested in a dedicated TG/DSC apparatus, under two relevant boundary conditions, namely, seasonal (SS) and daily (DS) storage applications. The dynamic behavior of the composite sorbent was tested by means of a G-LTJ apparatus in flat-plate adsorber configuration, under both SS and DS working conditions. Finally, preliminary tests on a lab-scale TES configuration were performed and reported. The main outcomes confirm that the composite is promising for TES applications, reaching the TSC up to 2.15 kJ/g under SS conditions. The stability of the composite was proven for 14 consecutive sorption/desorption cycles under conditions similar to those at real SS and DS cycles. The kinetic adsorption tests confirmed a slowdown of the sorption dynamics when passing from 1.7–2.0 mm to 2.36–2.80 mm of the grain size. Furthermore, the adsorption kinetic under SS mode is faster than of DS one. The preliminary testing in the lab-scale TES at SS cycle allowed getting TSC up to 1.25 kJ/g with a specific power up to 2.1 kW/kg.
AB - The present paper reports about the experimental characterization of a recently developed composite sorbent of water, LiCl/vermiculite, for thermal energy storage applications. The sorption ability as well as the thermal storage capacity (TSC) of the material itself were tested in a dedicated TG/DSC apparatus, under two relevant boundary conditions, namely, seasonal (SS) and daily (DS) storage applications. The dynamic behavior of the composite sorbent was tested by means of a G-LTJ apparatus in flat-plate adsorber configuration, under both SS and DS working conditions. Finally, preliminary tests on a lab-scale TES configuration were performed and reported. The main outcomes confirm that the composite is promising for TES applications, reaching the TSC up to 2.15 kJ/g under SS conditions. The stability of the composite was proven for 14 consecutive sorption/desorption cycles under conditions similar to those at real SS and DS cycles. The kinetic adsorption tests confirmed a slowdown of the sorption dynamics when passing from 1.7–2.0 mm to 2.36–2.80 mm of the grain size. Furthermore, the adsorption kinetic under SS mode is faster than of DS one. The preliminary testing in the lab-scale TES at SS cycle allowed getting TSC up to 1.25 kJ/g with a specific power up to 2.1 kW/kg.
KW - LiCl/vermiculite
KW - Sorption composite
KW - Sorption storage
KW - Thermal energy storage
KW - THERMAL-ENERGY STORAGE
KW - SILICA-GEL
KW - PERFORMANCE
KW - SORBENTS
KW - ADVANCEMENTS
KW - OF-THE-ART
KW - SALT
KW - WATER-ADSORPTION
KW - METHODOLOGY
KW - WORKING PAIRS
UR - http://www.scopus.com/inward/record.url?scp=85054459057&partnerID=8YFLogxK
U2 - 10.1016/j.ijrefrig.2018.08.006
DO - 10.1016/j.ijrefrig.2018.08.006
M3 - Article
AN - SCOPUS:85054459057
VL - 105
SP - 92
EP - 100
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
SN - 0140-7007
ER -
ID: 17035177