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Title: Enhancing power cycle efficiency for a supercritical Brayton cycle power system using tunable supercritical gas mixtures

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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1377870
Assignee:
National Technology & Engineering Solutions of Sandia, LLC SNL-A
Patent Number(s):
9,745,899
Application Number:
13/204,150
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2011 Aug 05
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

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