(601e) Dynamic Process Modeling for a 10 MWe Supercritical CO2 Recompression Brayton Pilot Plant Design
AIChE Annual Meeting
2017 Annual Meeting
Computing and Systems Technology Division
Energy System Design II
Wednesday, November 1, 2017 - 4:39pm to 5:00pm
In this work, a dynamic pressure-driven process model of a closed, indirect 10 MWe recuperated sCO2 recompression Brayton cycle integrated with natural gas-fired burner has been developed in Aspen Plus Dynamics. The dynamic model can predict off-design and part-load performance and provide time-dependent profiles of key outputs such as power generated and thermal efficiency as a function of compressor inlet temperature and pressure, turbine inlet temperature, bypass recompression fraction, and other key process variables. The dynamic model, assumptions, and specifications will be described for the key components and overall cycle. The presentation will also highlight transient responses and operational strategies for maximizing sCO2 cycle efficiency and net power during typical pilot plant disturbances and off-design testing.