Studies on a potassium carbonate salt hydrate based thermochemical energy storage system

Akshay Chate, Rakesh Sharma, Srinivasa Murthy S and Pradip Dutta

Energy, 2022, vol. 258, issue C

Abstract: A potassium carbonate salt hydrate based Thermochemical Energy Storage System (TESS) suitable for various heating applications encountered in cold ambient conditions is proposed. The hydration-dehydration reaction rate expressions of potassium carbonate salt hydrate are utilized to estimate the reaction times. A thermodynamic analysis is carried out for the operating cycle of a single charge-single discharge TESS to understand the effects of various operating parameters on its performance. The ambient temperature plays an important role in influencing the performance of the TESS, as it determines the supply/outlet pressure of water vapour for the respective chemical reaction. For ambient temperature of 10 °C, the system with optimized parameters yields a cycle efficiency of 57.7%, specific heating power of 127.3 W kg−1 and volumetric energy storage density of 158.6 kWh m−3.

Keywords: Thermochemical energy storage; Potassium carbonate; Salt hydrate; Thermodynamic analysis; Cold climate (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544222017765
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:258:y:2022:i:c:s0360544222017765

DOI: 10.1016/j.energy.2022.124873

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().