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Compressor-assisted thermochemical sorption integrated with solar photovoltaic-thermal collector for seasonal solar thermal energy storage

Thinsurat, Kamon; Ma, Zhiwei; Roskilly, Anthony Paul; Bao, Huashan

Compressor-assisted thermochemical sorption integrated with solar photovoltaic-thermal collector for seasonal solar thermal energy storage Thumbnail


Authors

Kamon Thinsurat



Abstract

This paper studied the performance of a compressor-assisted thermochemical sorption energy storage (CATSES) system with a solar photovoltaic-thermal collector (PV/T) to support the domestic space and hot water heating. The heat from the PV/T drives endothermic desorption, whilst the electricity from the PV/T powers the compressor to assist the low-temperature desorption. The main aim of this study was to demonstrate that the integrated system can flexibly and maximally utilise solar energy, and store solar energy in a high energy–density system with minimum loss over long-term storage. The parametric investigation on the CATSES system using SrCl2/NH3 working pair was conducted for a case study in the city of Newcastle upon Tyne in the UK, which has long wintertime with high heating demand. Two different system operation modes (Case 1 and Case 2) with different strategies of solar energy usage (direct usage / storage) were studied. By using 30 m2 PV/T collector with the CATSES reactor that contains 22 m3 (450 kg/m3) composite adsorbent and a compressor with 11.5 compression ratio, the system that operated Case 1 could achieve 100% solar fraction of annual heating demand. The achieved material-based energy storage density was around 0.6 GJ/m3 and the storage efficiency was 0.88 with the net electricity consumption of 180 kWh (around 5% average consumption of an ordinary UK household). The system that operated Case 2 stored less heat than that of the Case 1 but was able to output more electricity.

Citation

Thinsurat, K., Ma, Z., Roskilly, A. P., & Bao, H. (2022). Compressor-assisted thermochemical sorption integrated with solar photovoltaic-thermal collector for seasonal solar thermal energy storage. Energy Conversion and Management: X, 15, Article 100248. https://doi.org/10.1016/j.ecmx.2022.100248

Journal Article Type Article
Acceptance Date Jun 11, 2022
Online Publication Date Jun 17, 2022
Publication Date 2022
Deposit Date Aug 1, 2022
Publicly Available Date Aug 1, 2022
Journal Energy Conversion and Management: X
Print ISSN 2590-1745
Electronic ISSN 2590-1745
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 15
Article Number 100248
DOI https://doi.org/10.1016/j.ecmx.2022.100248
Public URL https://durham-repository.worktribe.com/output/1196352

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