Cyclic Thermal and Structural Testing of a Hot Particle Storage Bin
Thermal energy storage is a key element in concentrating solar energy systems. In 2017 a Roadmap toward a third-generation system that could meet the SunSHOT goals of 0.06 $/kWe recommended increasing temperatures to > 700° C for heat transfer media to in-crease thermal efficiencies and lower levelized costs of heat. In 2021, the U.S. Department of Energy selected the particle pathway, G3P3, to build a 1 MWt prototype solar tower with 6 MWh thermal energy storage at the NSTTF in Albuquerque, NM. Of the primary components, the falling particle receiver, and particle-to-sCO2 heat exchanger have been demonstrated at the 250 kWt capacity. The storage component is now being demonstrated as part of the G3P3-USA and G3P3-KSA pilot plants. Storage bin liner materials have been demonstrated by KSU in 2016 and 2019. A flowing particle storage container was demonstrated in 2020 by KSU. The testing presented in this work will be the first to test the particle to wall interactions with mono-lithic refractory insulation, and to validate a transient thermal transport model with the unique kinetics of bulk solids in funnel-flow where cooler particles near the walls flow inward toward a hot central flow channel. This work will also de-risk and characterize the specific design of the G3P3-USA storage bin.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 2317709
- Journal Information:
- SolarPACES Conference Proceedings, Journal Name: SolarPACES Conference Proceedings Vol. 1; ISSN 2751-9899
- Publisher:
- TIB Open PublishingCopyright Statement
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Sintering of Solid Particulates Under Elevated Temperature and Pressure in Large Storage Bins for Thermal Energy Storage
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conference | June 2014 |
Testing and Simulations of Spatial and Temporal Temperature Variations in a Particle-Based Thermal Energy Storage Bin
|
conference | June 2020 |
| High-Temperature Particle Heat Exchanger for sCO2 Power Cycles [Award 30342] | report | December 2020 |
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