In 2011, the U.S. Department of Energy (DOE) initiated a “SunShot Concentrating Solar Power R&D” program to develop technologies that have the potential for much higher efficiency, lower cost, and/or more reliable performance than existing CSP systems. The DOE seeks to develop highly disruptive Concentrating Solar Power (CSP) technologies that will meet 6¢/kWh cost targets by the end of the decade, and a high-efficiency, low-cost thermal power cycle is one of the important components to achieve the goal. Supercritical CO2 (s-CO2) operated in a closed-loop Brayton cycle offers the potential of equivalent or higher cycle efficiency versus superheated or supercritical steam cycles at temperatures relevant for CSP applications. Brayton-cycle systems using s-CO2 have a smaller weight and volume, lower thermal mass, and less complex power blocks versus Rankine cycles due to the higher density of the fluid and simpler cycle design. The simpler machinery and compact size of the s-CO2 process may also reduce the installation, maintenance and operation cost of the system.
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ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology
July 23–26, 2012
San Diego, California, USA
Conference Sponsors:
- Advanced Energy Systems Division
- Solar Energy Division
ISBN:
978-0-7918-4481-6
PROCEEDINGS PAPER
Thermodynamic Study of Advanced Supercritical Carbon Dioxide Power Cycles for High Performance Concentrating Solar Power Systems Available to Purchase
Craig S. Turchi,
Craig S. Turchi
National Renewable Energy Laboratory, Golden, CO
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Zhiwen Ma,
Zhiwen Ma
National Renewable Energy Laboratory, Golden, CO
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Ty Neises,
Ty Neises
National Renewable Energy Laboratory, Golden, CO
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Michael Wagner
Michael Wagner
National Renewable Energy Laboratory, Golden, CO
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Craig S. Turchi
National Renewable Energy Laboratory, Golden, CO
Zhiwen Ma
National Renewable Energy Laboratory, Golden, CO
Ty Neises
National Renewable Energy Laboratory, Golden, CO
Michael Wagner
National Renewable Energy Laboratory, Golden, CO
Paper No:
ES2012-91179, pp. 375-383; 9 pages
Published Online:
July 23, 2013
Citation
Turchi, CS, Ma, Z, Neises, T, & Wagner, M. "Thermodynamic Study of Advanced Supercritical Carbon Dioxide Power Cycles for High Performance Concentrating Solar Power Systems." Proceedings of the ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2012 6th International Conference on Energy Sustainability, Parts A and B. San Diego, California, USA. July 23–26, 2012. pp. 375-383. ASME. https://doi.org/10.1115/ES2012-91179
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