| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Energy Materials for Sustainable Development
|
| Presentation Title |
Cost-effective, Penetration/Corrosion-resistant Materials for the Containment of Earth-abundant Molten Chlorides for High-temperature Thermal Energy Storage for Concentrated Solar Power |
| Author(s) |
Liangjuan Gao, Elizabeth Laskowksi, Saeed Bagherzadeh, Mario Caccia, Michael Bichnevicius, Qingzi Zhu, Mehdi Pishahang, Robert M Cullen, Kenneth A McGowan, Asegun S Henry, Kenneth H. Sandhage |
| On-Site Speaker (Planned) |
Kenneth H. Sandhage |
| Abstract Scope |
The cost of renewable electricity generated by Concentrated Solar Power (CSP) plants may be significantly reduced by operating CSP turbines with inlet temperatures at or above 750oC (instead of <550oC) which, in turn, requires the use of thermal energy storage at or above 750oC to allow for rapidly dispatchable and/or continuous electricity production. Earth-abundant molten chlorides, such as MgCl2-KCl-NaCl liquids, are being considered as cost-effective fluids for such high-temperature thermal energy storage. Large-scale, reliable containment of these molten chlorides requires cost-effective storage tanks with walls that are resistant to corrosion and penetration. Unfortunately, low-cost metal alloys have exhibited appreciable corrosion, and low-cost porous ceramics have exhibited appreciable molten chloride penetration, upon exposure to such liquids at 750oC. In this talk, cost-effective composite materials that are resistant to corrosion and penetration by molten chlorides at 750oC, and processes for generating pipe and tank liners comprised of such materials, will be discussed. |