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Modelling the ammoniation of barium chloride for chemical heat transformations

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Hinmers, Sam and Critoph, Bob (2019) Modelling the ammoniation of barium chloride for chemical heat transformations. Energies, 12 (23). e4404. doi:10.3390/en12234404

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Official URL: https://doi.org/10.3390/en12234404

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Abstract

The coupling of reversible ammoniation reactions between two salts presents a method for the exploitation of low grade waste heat. This resorption configuration can be used for thermal transformation or heat pumping, to recover waste heat to primary producers, or for integration in heat networks. To understand the solid/gas reaction behaviour and to model its kinetics, Large Temperature Jump (LTJ) experiments were performed on a composite of barium chloride in an expanded natural graphite (ENG) matrix. A model has been built using a semi-empirical equation from the literature, which has been validated with the LTJ results. The results suggest the semi-empirical model provides a reasonable prediction for solid/gas reactions once the constants have been identified. Enhancing the model to handle sequential phase change reactions will enable a wide number of salts to be modelled, making the design of a resorption system practicable.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Q Science > QP Physiology
T Technology > TP Chemical technology
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Resorption (Physiology), Absorption (Physiology), Heat -- Radiation and absorption, Thermochemistry, Ammonia
Journal or Publication Title: Energies
Publisher: MDPI
ISSN: 1996-1073
Official Date: 2019
Dates:
DateEvent
2019Published
20 November 2019Available
18 November 2019Accepted
Volume: 12
Number: 23
Article Number: e4404
DOI: 10.3390/en12234404
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
Description:

Special Issue Adsorptive Systems for Heat Transformation and Heat Storage Applications

RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIED[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
UNSPECIFIEDInnovate UKhttp://dx.doi.org/10.13039/501100006041
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