Optimization of S-CO2 power conversion layouts with energy storage for the pulsed DEMO reactor

0548226 - ÚFP 2022 RIV CH eng J - Journal Article
Syblik, J. - Entler, Slavomír - Štepánek, J. - Dostál, V. - Zacha, P. - Veselý, L.
Optimization of S-CO2 power conversion layouts with energy storage for the pulsed DEMO reactor.
Fusion Engineering and Design. Roč. 169, August (2021), č. článku 112609. ISSN 0920-3796. E-ISSN 1873-7196
R&D Projects: GA MŠMT EF16_019/0000778
Grant - others:AV ČR(CZ) StrategieAV21/2
Program: StrategieAV
Institutional support: RVO:61389021
Keywords : Brute-force * demo * Energy storage * Nuclear fusion * Power conversion cycle * Supercritical CO 2
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.905, year: 2021
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0920379621003859?via%3Dihub

Nowadays, the technology of fusion power reactors faces various engineering obstacles. One of the most discussed topics is the pulse and dwell period of the fusion power reactor, which may be the most challenging for material engineering, electrical power grid, energy storage systems, etc. The main goal of this research is to calculate the optimized parameters for power cycles to gain the highest efficiency. This article also describes the optimization method of a possible supercritical CO2 power conversion cycle in DEMO. For comparison, there were chosen two Brayton power cycle layouts using S-CO2. The calculation focuses on the optimization due to the difference between the gained electrical power for these two periods, which lowers the oscillations in the power output. Besides, the approach of calculation via upgraded software for the power conversion cycles optimization is described. The optimization of this specific DEMO design points to the simple Brayton cycle as a better choice due to simplicity, higher flexibility and slightly higher gross efficiency.
Permanent Link: http://hdl.handle.net/11104/0324325