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ENHANCING POWER CYCLE EFFICIENCY FOR A SUPERCRITICAL BRAYTON CYCLE POWER SYSTEM USING TUNABLE SUPERCRITICAL GAS MIXTURES

United States Patent Application

20130033044
A1
View the Complete Application at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Various technologies pertaining to tuning composition of a fluid mixture in a supercritical Brayton cycle power generation system are described herein. Compounds, such as Alkanes, are selectively added or removed from an operating fluid of the supercritical Brayton cycle power generation system to cause the critical temperature of the fluid to move up or down, depending upon environmental conditions. As efficiency of the supercritical Brayton cycle power generation system is substantially optimized when heat is rejected near the critical temperature of the fluid, dynamically modifying the critical temperature of the fluid based upon sensed environmental conditions improves efficiency of such a system.
Wright, Steven A. (Albuquerque, NM), Pickard, Paul S. (Albuquerque, NM), Vernon, Milton E. (Albuquerque, NM), Radel, Ross F. (Madison, WI)
13/ 204,150
August 5, 2011
STATEMENT OF GOVERNMENTAL INTEREST [0001] This invention was developed under contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.