A Practical Look at Assumptions and Constraints for Steady State Modeling of sCO2 Brayton Power Cycles
- NETL
- Electric Power Research Institute (EPRI)
Modeling supercritical CO2 (sCO2) power cycles requires specification of system constraints and component performance metrics such as pressure losses and temperature limitations.? Differing assumptions made by the model designers may lead to significantly different results which are due to the assumptions and not to the underlying thermodynamics which characterize the cycle performance. As leaders in setting standards for techno-economic analyses, NETL and EPRI have collaborated to propose a set of practical modeling assumptions that can serve as a common baseline for both indirect and direct sCO2 power plant studies, allowing for more meaningful cycle comparisons. These include specifications for turbine inlet temperature (high temperature and pressure limitations), compressor inlet temperature and pressure (cooling limitations), heat exchanger effectiveness/temperature differentials and pressure drop, and full- and part-load turbine and compressor efficiencies.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
- Sponsoring Organization:
- (FE-22) - FE-22
- DOE Contract Number:
- FE0025912
- OSTI ID:
- 1491086
- Report Number(s):
- NETL-PUB-20271
- Country of Publication:
- United States
- Language:
- English
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