High Toughness Cermets for Molten Salt Pumps
- Powdermet Inc., Euclid, OH (United States); Powdermet Inc
- Powdermet Inc., Euclid, OH (United States)
The DOE seeks major reductions in the cost of concentrated solar power (CSP) to achieve subsidy-free, cost-competitive solar power by 2020. A significant step in achieving lower cost is the evolution to higher temperature operation. Molten chloride salts, and in particular KCl-MgCl2 currently appear to be to be the materials of choice to operate at these temperatures. The high working temperature and corrosive properties of these salts present an aggressive environment for CSP components. Valves seat and seals, bearings and impellers for pumps have additional requirements because of the dynamic mechanical loads that these components must survive. Alloys do not have good compatibility with salt and are expensive. Ceramic composites are difficult to form. This project offers a proof of concept for the use of ceramic, metal matrix nanocomposite materials to enable the economical construction and operation of molten salt pumps.
- Research Organization:
- Powdermet Inc., Euclid, OH (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
- DOE Contract Number:
- SC0017677
- OSTI ID:
- 1456875
- Report Number(s):
- DE--SC0017677 Final Technical Report; G-3082
- Country of Publication:
- United States
- Language:
- English
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