Lifetime modeling for a supercritical CO2-molten salt CSP power block

Pint, Bruce A.; Raiman, Stephen S.; Keiser, James

doi:10.1063/1.5117668

Title: Lifetime modeling for a supercritical CO2-molten salt CSP power block

Conference · Mon Jul 01 00:00:00 EDT 2019

DOI:https://doi.org/10.1063/1.5117668· OSTI ID:1546548

^[1];

^[1]

ORNL

To achieve higher efficiency in the next generation of concentrating solar power (CSP) plants, higher temperatures are needed, which will challenge the materials. One scenario would include molten chloride salts for thermal storage and supercritical CO₂ (sCO₂) for the power block and operating temperatures above 700°C to achieve at least 50% efficiency. For the high pressure (20-30 MPa) sCO₂ conditions, high strength Ni-based alloys will be required above 700°C and an extensive experimental project has confirmed good sCO₂ compatibility for alloys 625, 740H and 282. The data set generated enables more accurate lifetime predictions for 30-year service. Compatibility testing with K-Mg-Na chloride salts has just begun. Initial isothermal capsule results indicate there are promising combinations of salt chemistry, temperature and alloy composition. However, flowing salt testing is needed to evaluate compatibility, which is in progress.

View Conference

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1546548

Resource Relation:: Journal Volume: 2126; Conference: SolarPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems - Casablanca, , Morocco - 10/2/2018 8:00:00 AM-10/5/2018 8:00:00 AM

Country of Publication:: United States

Language:: English

References (17)

Effect of pressure on supercritical CO ₂ compatibility of structural alloys at 750 °C : Effect of pressure on supercritical CO Pint, B. A.; Brese, R. G.; Keiser, J. R. Materials and Corrosion, Vol. 68, Issue 2 https://doi.org/10.1002/maco.201508783	journal	April 2016
Thermal energy storage using chloride salts and their eutectics Myers, Philip D.; Goswami, D. Yogi Applied Thermal Engineering, Vol. 109 https://doi.org/10.1016/j.applthermaleng.2016.07.046	journal	October 2016
Initial Assessment of Ni-Base Alloy Performance in 0.1 MPa and Supercritical CO2 Pint, B. A.; Keiser, J. R. JOM, Vol. 67, Issue 11 https://doi.org/10.1007/s11837-015-1661-8	journal	September 2015
Supercritical CO2 Brayton cycles for solar-thermal energy Iverson, Brian D.; Conboy, Thomas M.; Pasch, James J. Applied Energy, Vol. 111 https://doi.org/10.1016/j.apenergy.2013.06.020	journal	November 2013
On the breakaway oxidation of Fe9Cr1Mo steel in high pressure CO2 Gong, Y.; Young, D. J.; Kontis, P. Acta Materialia, Vol. 130 https://doi.org/10.1016/j.actamat.2017.02.034	journal	May 2017
Development of a Fabricable Gamma Prime (γ�) Strengthened Superalloy Pike, L. M. Superalloys 2008 (Eleventh International Symposium) https://doi.org/10.7449/2008/Superalloys_2008_191_200	conference	January 2008
Compatibility of structural materials with fusion reactor coolant and breeder fluids DeVan, J. H. Journal of Nuclear Materials, Vol. 85-86 https://doi.org/10.1016/0022-3115(79)90499-9	journal	December 1979
Compatibility of an FeCrAl alloy with flowing Pb-Li in a thermal convection loop Pawel, Steven J.; Unocic, Kinga A. Journal of Nuclear Materials, Vol. 492 https://doi.org/10.1016/j.jnucmat.2017.04.048	journal	August 2017
Molten nitrate salts at 600 and 680°C: Thermophysical property changes and corrosion of high-temperature nickel alloys McConohy, Geoff; Kruizenga, Alan Solar Energy, Vol. 103 https://doi.org/10.1016/j.solener.2014.01.028	journal	May 2014
Benchmarking supercritical carbon dioxide cycles against steam Rankine cycles for Concentrated Solar Power Cheang, V. T.; Hedderwick, R. A.; McGregor, C. Solar Energy, Vol. 113 https://doi.org/10.1016/j.solener.2014.12.016	journal	March 2015
Comparison of Oxidation Behavior and Electrical Properties of Doped NiO- and Cr2O3-Forming Alloys for Solid-Oxide, Fuel-Cell Metallic Interconnects Brady, M. P.; Pint, B. A.; Lu, Z. G. Oxidation of Metals, Vol. 65, Issue 3-4 https://doi.org/10.1007/s11085-006-9018-x	journal	September 2006
Dissolution kinetics of steels exposed in lead-lithium and lithium environments Tortorelli, P. F. Journal of Nuclear Materials, Vol. 191-194 https://doi.org/10.1016/0022-3115(92)90617-T	journal	September 1992
Hot corrosion behavior of commercial alloys in thermal energy storage material of molten MgCl2/KCl/NaCl under inert atmosphere Ding, Wenjin; Shi, Hao; Xiu, Yanlei Solar Energy Materials and Solar Cells, Vol. 184 https://doi.org/10.1016/j.solmat.2018.04.025	journal	September 2018
Compatibility Assessment of Advanced Stainless Steels in Sodium Pawel, S. J. Fusion Science and Technology, Vol. 61, Issue 1T https://doi.org/10.13182/FST12-A13447	journal	January 2012
The supercritical thermodynamic power cycle Feher, E. G. Energy Conversion, Vol. 8, Issue 2 https://doi.org/10.1016/0013-7480(68)90105-8	journal	September 1968
Microstructural stability and mechanical properties of a new nickel-based superalloy Zhao, Shuangqun; Xie, Xishan; Smith, Gaylord D. Materials Science and Engineering: A, Vol. 355, Issue 1-2 https://doi.org/10.1016/S0921-5093(03)00051-0	journal	August 2003
Corrosion resistance of alumina-forming alloys against molten chlorides for energy production. I: Pre-oxidation treatment and isothermal corrosion tests Gomez-Vidal, J. C.; Fernandez, A. G.; Tirawat, R. Solar Energy Materials and Solar Cells, Vol. 166 https://doi.org/10.1016/j.solmat.2017.02.019	journal	July 2017

Similar Records

Lifetime Model Development for Supercritical CO2 CSP Systems

Technical Report · Wed May 01 00:00:00 EDT 2019 · OSTI ID:1546548

Pint, Bruce A.; Pillai, Rishi R.

Development of an Open-source Alloy Selection and Lifetime Assessment Tool for Structural Components in CSP

Technical Report · Sat Jan 01 00:00:00 EST 2022 · OSTI ID:1546548

Pillai, Rishi; Romedenne, Marie; Lee, Sangkeun (Matt)

Effect of Pressure and Thermal Cycling on Long-Term Oxidation in CO₂ and Supercritical CO₂

Journal Article · Wed Nov 04 00:00:00 EST 2020 · Oxidation of Metals · OSTI ID:1546548

Pint, Bruce A.; Pillai, Rishi; Lance, Michael J.; +1 more

Title: Lifetime modeling for a supercritical CO2-molten salt CSP power block

Citation Formats

References (17)

Similar Records

Related Subjects