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Filename SAND-2014-0602C.pdf
filesize 473.79 kB
Version 1
Date added October 31, 2014
Downloaded 384 times
Category Advanced Nuclear Energy, Brayton Cycle, Energy Efficiency, Nuclear Energy Safety
report-id SAND2014-0602C

Supercritical Carbon Dioxide (S-CO2) is emerging as a potential working fluid in
power-production Brayton cycles. As a result, concerns have been raised regarding
fluid purity within the power cycle loops. Additionally, investigations into the
longevity of the S-CO2 power cycle materials are being conducted to quantify the
advantages of using S-CO2 versus other fluids, since S-CO2 promises substantially
higher efficiencies. One potential issue with S-CO2 systems is intergrannular
corrosion [1]. At this time, Sandia National Laboratories (SNL) is establishing a
materials baseline through the analysis of 1) “as received” stainless steel piping and
2) piping exposed to S-CO2 under typical operating conditions with SNL’s Brayton
systems. Results from ongoing investigations are presented.