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Title: Modeling and Validation of Flow and Heat Transfer Phenomena for Coal-Fired Boilers for Indirectly-Heated Supercritical Carbon Dioxide Power Cycles

Technical Report ·
OSTI ID:1787857

The indirect sCO2 power cycle is one of the prospective power systems for a new generation of power plants. Due to higher efficiency for lower operation temperature, compactness, and retrofitting compared to the traditional steam power cycle, the sCO2 power cycle has the potential to use different heat sources (e.g., coal, natural gas, municipal solid waste, sugarcane bagasse, or biomass). However, the design of the primary heat exchanger/boiler is a complex procedure with many challenges that need to be solved. The Phase I work focused on solving these problems. The work was oriented towards developing a new heat transfer correlation and creating a multi-objective optimization program for the design of an sCO2 boiler. Although coal was used for the Phase I work, the goal is to extend the capabilities of the optimization program such that it can also be used for different fuels. The correlations were based on experimental data acquired at Spectral Energies’ Partner’s unique testing facility at the University of Central Florida . They were used for the validation of internal or sCO2-side heat transfer in this project. The optimization program was created based on the IDAES PSE framework, which is an open-source code developed by NETL and its partners. The results, which are explained in this report, show comparisons between common heat transfer correlations and experimental data. These findings may have an effect on the size and cost of the boiler. The IDAES PSE framework showed full capability for multi-objective optimization of a sCO2 boiler.

Research Organization:
U.S. DEPARTMENT OF ENERGY
Sponsoring Organization:
USDOE Office of Science (SC), Engineering & Technology. Office of Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs
Contributing Organization:
SPECTRAL ENERGIES, LLC; UNIVERSITY OF CENTRAL FLORIDA
DOE Contract Number:
SC0020796
OSTI ID:
1787857
Type / Phase:
SBIR (Phase I)
Report Number(s):
DOE-SE-20796-1
Country of Publication:
United States
Language:
English