Off-design performance evaluation of multistage axial gas turbines for a closed Brayton cycle of sodium-cooled fast reactor

Choi, Jae Hyun; Yoon, Jung In; Chung, Sungkun; Kim, Nam-Hyeong; Jo, HangJin

doi:10.1016/j.net.2023.04.016

Nuclear Engineering and Technology

2023

DOI: 10.1016/j.net.2023.04.016

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Off-design performance evaluation of multistage axial gas turbines for a closed Brayton cycle of sodium-cooled fast reactor

Jae Hyun Choi

Jung In Yoon

Sungkun Chung

et al.

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2024

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Full-cycle grids numerical simulation of the performance for newly developed micro turbine engine

Zhang,

Wu,

et al. 2024

HFF

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Purpose The purpose of this research is to investigate the feasibility of using the components series connection (CSC) method to predict the performance of a newly developed micro turbine engine (MTE) under rated operating condition. Design/methodology/approach The main research object is the MTE with known factory performance parameters, and the finite element method is used to discretize its main components into a full-cycle grid and then simulate it in the computational fluid dynamics method under rated operating condition using the CSC method. Finally, compare the results obtained by numerical simulations with the factory design parameters of the MTE. Findings The performance and flow field of MTE and each component were simulated and obtained. Compared with the factory design parameters, the errors are acceptable, with the outlet average total temperature and thrust exhibiting errors of 1.4% and 7.6%, respectively. Practical implications This paper introduces a faster and more convenient method for simulating the performance of MTE components and the entire engine while also making the simulations more realistic. The method was used to analyze the performance of the components and the whole engine of a newly developed MTE. Originality/value This research validates the feasibility of evaluating the overall performance of the MTE using the CSC method and provides a new method to solve performance calculations for MTE under any known working conditions.

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Full-cycle grids numerical simulation of the performance for newly developed micro turbine engine

Zhang,

Wu,

et al. 2024

HFF

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Off-design performance evaluation of multistage axial gas turbines for a closed Brayton cycle of sodium-cooled fast reactor

Cited by 1 publication

References 25 publications

Full-cycle grids numerical simulation of the performance for newly developed micro turbine engine

Full-cycle grids numerical simulation of the performance for newly developed micro turbine engine

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