Geometric Optimization of an Electrochemical Purification Cell to Prevent Corrosion in CSP Plants During Operation
When exposed to moisture or oxygen, molten chloride salts produce corrosive impurities which degrade containment alloys. As a result, this can significantly decrease the lifetime and increase costs of molten-salt-based systems. To overcome this barrier, we designed and modeled an electrochemical purification cell to remove the corrosive impurity MgOH+. Various reactor architectures, including constant stirred tank reactors (CSTRs) and plug flow reactors (PFRs) were investigated. Steady-state thermoelectric properties were evaluated, allowing assessment of the effects of structure and design parameters such as flow rate, cell length, and cross-sectional area of molten salt. The results suggest that our design could most effectively increase reliability and decrease costs of molten-chloride-salt-based systems by protecting them during continuous operation using an annular plug flow reactor.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1835073
- Report Number(s):
- NREL/PR-5500-81438; MainId:82211; UUID:7fa295ad-be50-4249-b49c-d3d3d0eb8215; MainAdminID:63371
- Resource Relation:
- Conference: Presented at SolarPACES 2021, 27 September - 1 October 2021
- Country of Publication:
- United States
- Language:
- English
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