Thermochemical seasonal solar heat storage in salt hydrates for residential applications - Influence of the water vapor pressure on the desorption kinetics of MgSO4.7H2O

C. Ferchaud, R.A.A. Scherpenborg, H.A. Zondag, R. Boer, de

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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Samenvatting

An interesting thermochemical material for compact seasonal heat storage is magnesium sulfate heptahydrate MgSO4.7H2O. Previous studies in the field showed that this material presents a storage energy density of 1 GJ/m3 when the material is built in a TC storage system with a 50% porosity packed bed reactor. However, the material has slow reaction kinetics under the low vapor pressure typically occurring in a seasonal heat storage (13 mbar). The kinetic study presented in this paper shows that a higher water vapor pressure of 50 mbar increases the reaction kinetics of the dehydration process of MgSO4.7H2O, improving the performance of the material.
Originele taal-2Engels
TitelProceeding ISES Solar World Congress, 3-7 November 2013, Cancun, Mexico
Pagina's2436-2440
DOI's
StatusGepubliceerd - 2013
Evenementconference; ISES Solar World Congress; 2013-11-03; 2013-11-07 -
Duur: 3 nov 20137 nov 2013

Publicatie series

NaamEnergy Procedia
Volume57
ISSN van geprinte versie1876-6102

Congres

Congresconference; ISES Solar World Congress; 2013-11-03; 2013-11-07
Periode3/11/137/11/13
AnderISES Solar World Congress

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    Ferchaud, C., Scherpenborg, R. A. A., Zondag, H. A., & Boer, de, R. (2013). Thermochemical seasonal solar heat storage in salt hydrates for residential applications - Influence of the water vapor pressure on the desorption kinetics of MgSO4.7H2O. In Proceeding ISES Solar World Congress, 3-7 November 2013, Cancun, Mexico (blz. 2436-2440). (Energy Procedia; Vol. 57). https://doi.org/10.1016/j.egypro.2014.10.252