Abstract: The aim of the present paper is the experimental characterization of adsorbent materials suitable for practical applications in adsorption refrigeration systems, employing ethanol as refrigerant. Different commercial activated carbons as well as a properly synthesized porous composite, composed of LiBr inside a silica gel host matrix, have been tested. A complete thermo-physical characterization, comprising nitrogen physi-sorption, specific heat and thermo-gravimetric equilibrium curves of ethanol adsorption over the sorbents, has been carried out. The equilibrium data have been fitted by means of the Dubinin e Astakhov equation. On the basis of the experimental data, a thermodynamic evaluation of the achievable performance of each adsorbent pair has been estimated by calculating the maximum COP (Coefficient of Performance) under typical working boundary conditions for refrigeration and air conditioning applications. The innovative composite material shows the highest thermodynamic performances of 0.64e0.72 for both tested working conditions. Nevertheless, the best carbonaceous material reaches COP value comparable with the synthesized composite. The results have demonstrated the potential of the chosen adsorbents for utilization in adsorption cooling systems.

Cite: Brancato V. , Frazzica A. , Sapienza A. , Gordeeva L. , Freni A.
Ethanol Adsorption onto Carbonaceous and Composite Adsorbents for Adsorptive Cooling System
Energy. 2015. V.84. P.177-185. DOI: 10.1016/j.energy.2015.02.077 WOS Scopus РИНЦ AN OpenAlex

Dates:

Submitted:	Nov 10, 2014
Accepted:	Feb 23, 2015
Published online:	Mar 21, 2015
Published print:	May 1, 2015

Identifiers:

Web of science:	WOS:000355035900018
Scopus:	2-s2.0-84928415343
Elibrary:	24024855
Chemical Abstracts:	2015:450918
OpenAlex:	W2030255308

Citing:

DB	Citing
Web of science	36
Scopus	38
Elibrary	34
OpenAlex	38

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