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Transient Power Operation of a Supercritical Carbon Dioxide Brayton Cycle

[+] Author Affiliations
Eric M. Clementoni, Timothy L. Cox, Martha A. King

Naval Nuclear Laboratory, West Mifflin, PA

Kevin D. Rahner

Naval Nuclear Laboratory, Schenectady, NY

Paper No. GT2017-63056, pp. V009T38A001; 10 pages
  • ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
  • Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5096-1
  • Copyright © 2017 by ASME


The Naval Nuclear Laboratory has been operating the Integrated System Test (IST) with the objective of demonstrating the ability to operate and control a supercritical carbon dioxide (sCO2) Brayton power cycle over a wide range of conditions. The IST is a two shaft recuperated closed sCO2 Brayton cycle with a variable speed turbine-driven compressor and a constant speed turbine-driven generator designed to output 100 kWe. This paper presents a thermal-hydraulic lead control strategy for operation of the cycle over a range of operating conditions along with predicted and actual IST system response to power level changes using this control strategy.

Copyright © 2017 by ASME



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