- Title
- Thermal reduction of iron–manganese oxide particles in a high-temperature packed-bed reactor for solar thermochemical energy storage
- Creator
- Wang, Bo; Li, Lifeng; Schäfer, Florian; Pottas, Johannes; Kumar, Apurv
- Date
- 2020
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/177106
- Identifier
- vital:15242
- Identifier
- ISBN:9780816911141 (ISBN)
- Abstract
- The reduction of iron–manganese oxide particles in a high-temperature packed-bed solar thermochemical reactor isinvestigated using an advanced transient three-dimensional computational fluid dynamics model. The model couplesthe conductive, convective, and radiative heat transfer, reaction kinetics, and fluid flow in the bed with packed particlesand interstitial sweep gases to obtain a detailed description of the transport phenomena in the bed. A reactor prototypethat features a reaction tube confining the packed particles and a surrounding diffuse reflective cavity is tested undersimulated high-flux solar irradiation to validate the model. The numerically predicted temperature profiles and oxygengeneration rates are in good agreement with the experimental data. The validated model is applied to evaluate thethermochemical performance of the reactor. The calculated temperature profiles indicate that uniform temperaturedistribution in the reactive packed particles is achieved from the onset of the reaction. An energy rate balance analysisshows the instantaneous peak solar-to-thermochemical energy efficiency reaches 9.3%. The optimal operationconditions for the reactor are explored in a parametric study of the sweeping gas velocity and the concentration ratio ofincident solar radiation. © 2020 American Institute of Chemical Engineers. All rights reserved. **Please note that there are multiple authors for this article therefore only the name of the first 5 including Federation University Australia affiliate “Apurv Kumar” is provided in this record**
- Publisher
- American Institute of Chemical Engineers
- Relation
- 2020 AIChE Annual Meeting, Virtual, Online, 16 November 2020 - 20 November 2020 Vol. 2020-November
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © 2020 American Institute of Chemical Engineers
- Reviewed
- Funder
- This work is financially supported by the Australian National Renewable Energy Agency [grant number 2014/RND005] and the ANU PhD Scholarship.
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