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Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 998-1003, October 21–24, 2019,
... and CO additions did not seem to significantly affect oxidation rates. On the other hand, O 2 addition resulted in lower weight gains for all alloys, suggesting that O 2 may be primarily affecting corrosion behavior. austenitic stainless steel carbon dioxide corrosion behavior gas impurity...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 1183-1194, October 15–18, 2024,
... Abstract Supercritical carbon dioxide cooling during machining has been identified as an effective measure to mitigate the risk of stress corrosion cracking in materials utilized in the primary circuit of light water reactors, particularly in pressure vessel structural steels. This study aims...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 699-711, October 15–18, 2024,
... Abstract Advanced power generation systems, including advanced ultrasupercritical (A-USC) steam and supercritical carbon dioxide (sCO 2 ) plants operating above 700°C, are crucial for reducing carbon dioxide emissions through improved efficiency. While nickel superalloys meet these extreme...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 86-97, October 22–25, 2013,
... with a pendant and horizontal tube bank arrangement as the starting point for the economic analysis of the technology. The efficiency improvement achieved with 700C (1292F) plus operation over a 600C (1112F) power plant results in about a 12% reduction in fuel consumption and carbon dioxide emissions...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1024-1035, October 21–24, 2019,
... Abstract Structural alloy corrosion is a major concern for the design and operation of supercritical carbon dioxide (sCO 2 ) power cycles. Looking towards the future of sCO 2 system development, the ability to measure real-time alloy corrosion would be invaluable to informing operation...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 35-46, October 11–14, 2016,
...) Technical Director, (2) Metallurgist, (3) General Manager Abstract: The necessity to reduce carbon dioxide emissions of new fossil plant, while increasing net efficiency has lead to the development of not only new steels for potential plant operation of 650°C, but also cast nickel alloys for potential plant...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1181-1192, October 21–24, 2019,
... Abstract The need to reduce carbon dioxide emissions of new fossil power plants is one of the biggest challenges of mankind in the next decades. In this context increasing net efficiency is the most important aspect which has led to the development of not only new steels for potential plant...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 491-503, October 22–25, 2013,
... Abstract The drive for reduced carbon dioxide emissions and improved efficiency in coal fire power plant has led to much work being carried out around the world with regards to material development to enable 700+°C steam temperature operation. At these elevated temperatures and pressures steels...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 473-482, October 15–18, 2024,
... Abstract The next generation of materials and assemblies designed to address challenges in power generation, such as molten salt or supercritical carbon dioxide thermal transfer systems, corrosion, creep/fatigue, and higher temperature operation, will likely be highly optimized...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 750-759, October 15–18, 2024,
... Abstract Diffusion bonded compact heat exchangers have exceptionally high heat transfer efficiency and might significantly improve the performance and reduce the cost of supercritical carbon-dioxide Brayton cycle power plants using high temperature heat sources, like high temperature nuclear...
Proceedings Papers

AM-EPRI2024, Advances in Materials, Manufacturing, and Repair for Power Plants: Proceedings from the Tenth International Conference, 885-896, October 15–18, 2024,
..., including carbon dioxide, Energy Procedia, Vol. 37, (2013), pp. 1135 1149. [2] Allam, R., Martin, S., Forrest, B., Fetvedt, J., Lu, X., Freed, D., Brown, Jr., G. W., Sasaki, T., Itoh, M., Manning, J., Demonstration of the Allam Cycle: An Update on the Development Status of a High Efficiency Supercritical...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 888-899, October 11–14, 2016,
... are discussed with reference to alloy chromium diffusion and carbon permeation of oxide scales. Keywords: supercritical, carbon dioxide, oxidation, carburisation, chromia scales, diffusion. INTRODUCTION Supercritical CO2 (SCO2) has advantages as a heat transfer medium and as the working fluid in a closed...
Proceedings Papers

AM-EPRI2016, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Eighth International Conference, 844-854, October 11–14, 2016,
...., Stefanakos, E. K., A review of thermodynamic cycles and 851 working fluids for the conversion of low-grade heat, Renewable & Sustainable Energy Reviews, Vol.14, (2010), pp.3059-3067. 2. Dostal, V., Hejzlar, P., Driscoll, M. J., High-Performance Supercritical Carbon Dioxide Cycle for Next-Generation...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 1417-1421, October 22–25, 2013,
... the initially formed protective Cr 2 O 3 scale facilitated gas permeation. This mechanism is believed to be responsible for the observed dependence of nodule formation on the oxygen content in the gas mixtures. carbon dioxide gas mixtures gas permeation high temperature oxidation intrinsic defects...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 930-938, October 21–24, 2019,
... studies at ambient pressure. These results suggest that more studies of impurity effects are needed at supercritical pressures including steels at lower temperatures. alloy compatibility carbon dioxide impurity effects nickel alloys steel supercritical pressures Joint EPRI 123HiMAT...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 1004-1013, October 21–24, 2019,
... of the different alloy diffusion coefficients. Silicon additions slowed chromia scale growth, promoting passivation of both alloy types. Water vapour accelerated chromia scaling, but slowed NiO growth. attack resistance carbon dioxide diffusion coefficient iron-chromium alloys nickel-chromium alloys...
Proceedings Papers

AM-EPRI2019, 2019 Joint EPRI – 123HiMAT International Conference on Advances in High-Temperature Materials, 953-966, October 21–24, 2019,
... in supercritical CO 2 . The performance of these alloys indicates that these materials are compatible not only in oxidizing environments, but also in Supercritical CO 2 environments for extended service operation. alloy composition carbon dioxide high temperature alloys nickel-base alloys oxidation...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 881-891, October 22–25, 2013,
... in energy generation. Carbon dioxide capture and storage (CCS) is considering as a feasible technology for reducing CO2 emissions while satisfying the ever-growing energy demands [1]. The most costeffective and readily available option is to mitigate CO2 emission by increasing the plant efficiency...
Proceedings Papers

AM-EPRI2013, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Seventh International Conference, 863-880, October 22–25, 2013,
.... air-firing combustion carbon dioxide carbonates coal-ash corrosion resistance coal-fired boilers corrosion rates corrosion test oxy-firing combustion reheaters superheaters weld overlays Advances in Materials Technology for Fossil Power Plants Proceedings from the Seventh International...
Proceedings Papers

AM-EPRI2010, Advances in Materials Technology for Fossil Power Plants: Proceedings from the Sixth International Conference, 255-267, August 31–September 3, 2010,
... or waste co-firing. In addition, to further reduce the carbon dioxide emissions, oxyfuel firing is also being considered. The ultrasupercritical boilers operating under these more arduous service conditions require higher performance tubing materials to operate reliabily. The creep properties...