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Titolo:
Ca-montmorillonite clay as thermal energy storage material
Autore:
Sadek, OM; Mekhamer, WK;
Indirizzi:
Univ Alexandria, Inst Grad Studies & Res, Dept Mat Sci, Alexandria 21526, Shatby, Egypt Univ Alexandria Alexandria Shatby Egypt 21526 andria 21526, Shatby, Egypt
Titolo Testata:
THERMOCHIMICA ACTA
fascicolo: 1-2, volume: 363, anno: 2000,
pagine: 47 - 54
SICI:
0040-6031(20001127)363:1-2<47:CCATES>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER-VAPOR ISOTHERMS; HEAT; SYSTEMS; ADSORPTION; IMMERSION; CHARGE; FORMS;
Keywords:
montmorillonite clay; solar energy storage; thermal energy storage;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Sadek, OM Univ Alexandria, Inst Grad Studies & Res, Dept Mat Sci, 163 Horreya Ave,POB 832, Alexandria 21526, Shatby, Egypt Univ Alexandria 163 Horreya Ave,POB 832 Alexandria Shatby Egypt 21526
Citazione:
O.M. Sadek e W.K. Mekhamer, "Ca-montmorillonite clay as thermal energy storage material", THERMOC ACT, 363(1-2), 2000, pp. 47-54

Abstract

Ca-montmorillonite clay (Ca-Mj, is one of the materials, which can performreversible direct hydration/dehydration process. The feasibility of using Ca-hl as a thermal energy storage material was investigated. The adsorptionisotherms, differential thermal analysis (DTA) and infrared (IR) spectroscopy data were studied. The adsorptive capacity of Ca-M was calculated and expressed as the maximum amount of water adsorbed on certain amount of clay. The results showed a reasonable adsorptive capacity for Ca-M, which amounted to 0.31 g H2O/g of dry clay, as pre-hydration temperature reached 250 degreesC. The energy storage capacity was calculated as a function of the netadsorbed amount of water on the clay surface. The maximum heat storage capacity obtained for dry clay was 487 cal/g. Thus, Ca-M can be considered as an efficient energy storage material compared to the other materials used. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 01/10/20 alle ore 01:24:16