Assessment of Feasibility, Economics, and Market Potential for a Molten Salt System at 1000 exp 0 F Reheat Steam: Feasibility, Economics, and Market Potential

摘要

As a result of the Advanced Central Receiver (ACR) Phase I systems studies, Martin-Marietta Corporation (MMC) developed a conceptual design employing 1050 exp 0 F molten salt and a 950 exp 0 F/950 exp 0 F reheat turbine. This concept appears to have the potential for providing higher steam conditions leading to higher performance and wider market application. This report presents the results of a preliminary investigation of the system to determine the feasibility of providing 1000 exp 0 F/1000 exp 0 F steam and the impact of the required design modifications on the system performance, cost, and market potential for solar repowering. Two modified designs are investigated. In one modified design, the temperature of the molten salt is the same as in the MMC baseline design (1050 exp 0 F), but the steam generators have been modified to provide 1000 exp 0 F/1000 exp 0 F steam. In the other modified design, the enhanced steam conditions are obtained using molten salt at a temperature of 1100 exp 0 F. (ERA citation 05:018629)