Development of High-Fidelity Numerical Models for Supercritical CO 2 Oxy-Combustion: SBIR Phase I Final Technical Report
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Experimental and numerical investigations of three variants of internal cooling configurations – dimples only, ribs only and ribs with dimples have been explored at process conditions (96°C and 207bar) with sCO2 as the coolant.
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For pure CO2, the experimental measurements of the heat transfer coefficient in this paper agreed to within 5% of the classical Dittus-Boelter correlation. When nitrogen was added to the CO2 at concentrations from 0–28% nitrogen, these experiments found that the measured Nusselt numbers decreased by 20% below the Dittus-Boelter correlation evaluated with thermophysical properties for the N2/CO2 gas mixture. In general, the McAdams correlation evaluated with mixture properties predicted the friction factor within ±10%.
2021 Clearwater Clean Energy Conference, Virtual, May 30-June 3, 2021
Oregon State University Materials Science Seminar, Virtual, December 1, 2021.
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