Optimization of thermochemical heat storage systems by controlling operating parameters and using two reactors

Research output: Chapter in Book/Report/Conference proceedingConference contribution

50 Downloads (Pure)

Abstract

Direct CO2 emissions from space heating and hot water production in buildings has been on a rising trend in recent decades. It is increasingly urgent to develop efficient and low-carbon heating technologies that can reduce energy consumption and shift the load to off-peak times. This work concerns thermochemical heat storage (TCHS), which has the potential to offer flexibility to bridge the energy supply and demand mismatches, and help with load shifting. One of the technical barriers for the use of TCHS is the variation of the outlet conditions for discharge process, which limits the implementation and competitiveness of the technology. Here we propose a new method to overcome the barrier. By using packed-bed based thermochemical reactors packed with silica gel, as an example, we use a Computational Fluid Dynamic (CFD) tool to understand the effectiveness of controlling and optimising the outlet conditions of the TCHS reactor. We demonstrated that, by optimizing the packed bed, a stable outlet temperature could be achieved. Furthermore, the whole TCHS performance could be enhanced, doubling the discharging power and prolonged discharge time by 4 times while keeping the same outlet temperature.
Original languageEnglish
Title of host publication10th HEAT POWERED CYCLES 2023
Subtitle of host publicationConference Proceedings
PublisherZenodo
Pages596-602
ISBN (Electronic)9781912669639
DOIs
Publication statusPublished - 1 Dec 2023
EventHeat Powered Cycles Conference 2023 - Edinburgh, United Kingdom
Duration: 3 Sept 20236 Sept 2023
https://heatpoweredcycles.eng.ed.ac.uk/

Conference

ConferenceHeat Powered Cycles Conference 2023
Country/TerritoryUnited Kingdom
CityEdinburgh
Period3/09/236/09/23
Internet address

Fingerprint

Dive into the research topics of 'Optimization of thermochemical heat storage systems by controlling operating parameters and using two reactors'. Together they form a unique fingerprint.

Cite this