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Startup Design Features for Supercritical Power Conversion Systems


Sandia National Laboratories has created solutions to startup flow issues in supercritical conversion systems.  The Supercritical Brayton Cycle is a power conversion system that is undergoing extensive testing and advancements at Sandia Labs.  The brayton cycle system has the ability to achieve higher efficiency and more cost effect power conversion than current art forms.


The new design features and procedures will improve the already advanced capabilities of the supercritical power conversion system.  The new design features have been developed and tested over many months, with consistent results.


  • Significantly smaller size
  • Increased efficiency and power
  • Reduced cost due to compact size
  • Solution to startup flow issues

Applications and Industries

  • Electric utility
  • Nuclear power
  • Oil and gas
  • Water supply and sewage treatment
  • Renewable power and energy

Intellectual Property

ID Number
Patent Number
Preheating of fluid in a supercritical Brayton cycle power generation system at cold startup 9,388,817 07/12/2016
Technology IDSD#11916Development StagePrototype - Sandia estimates this technology at approximately TRL 6. Deliverable prototype testing has been conducted. AvailabilityAvailable - Various licensing and partnering options are available. Please contact the Intellectual Property department to discuss. Published10/12/2011Last Updated02/06/2013