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Title: A study of novel high performance and energy dense zeolite composite materials for domestic interseasonal thermochemical energy storage
Authors: Mahon, Daniel
Claudio, Gianfranco
Eames, Philip C.
Keywords: Thermochemcial energy storage
Magnesium sulphate heptahydrate
Differential scanning calorimetry
Issue Date: 2019
Publisher: © Elsevier
Citation: MAHON, D., CLAUDIO, G. and EAMES, P.C., 2019. A study of novel high performance and energy dense zeolite composite materials for domestic interseasonal thermochemical energy storage. Energy Procedia, 158, pp.4489-4494.
Abstract: Thermochemical Energy Storage (TCES) materials can be used to store and release thermal energy during times of high demand for applications such as Domestic Space Heating (DSH) or Domestic Hot Water (DHW). Novel composite materials have been created by 2 methods, i) impregnating zeolites with MgSO4 using a modified wetness impregnation method and ii) forming zeolites impregnated with MgSO4 into 4mm pellets using a pellet preparation method and a binder, these composite pellets have been named ZMK. Differential Scanning Calorimetry (DSC) measurements were used to assess the composite materials energy density and performance ratio. The ZMK pellets were also tested on a larger (200g) scale using an in-situ open fixed bed reactor. It was found that ZMK dehydrates at a temperature of 150˚C with a dehydration enthalpy of 715 J/g, with an overall performance ratio of 85% at a 10mg scale. ZMK was found to have a volumetric energy density of 415MJ/m3 and a specific energy density of 702J/g at a 200g scale when hydrated (discharged) with 68% RH air at 20˚C, making it a suitable candidate for interseasonal TCES.
Description: This is an Open Access article. It is published by Elsevier under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (CC BY-NC-ND 4.0). This paper was also presented at the 10th International Conference on Applied Energy (ICAE2018), 22-25 August 2018, Hong Kong, China.
Sponsor: This work was supported in full by the UK Engineering and Physical Sciences Research Council (EPSRC) (grant number: EP/K011847/1), i-STUTE and a Loughborough University PhD studentship.
Version: Published
DOI: 10.1016/j.egypro.2019.01.763
URI: https://dspace.lboro.ac.uk/2134/35284
Publisher Link: https://doi.org/10.1016/j.egypro.2019.01.763
ISSN: 1876-6102
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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