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Article

Optimization and Improvement of Sodium Heated Once-through Steam Generator Transient Analysis Code Based on the JFNK Algorithm

by
Bo Wang
1,2,
Zhenyu Feng
1,
Youchun Chen
1,
Dalin Zhang
1,*,
Zhiguang Wu
3,
Jun Li
2,
Mingyang Li
2,
Ruoxin Ma
2 and
Chao Li
2
1
State Key Laboratory of Multiphase Flow in Power Engineering, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
2
DongFang Electric Co., Ltd., Chengdu 611731, China
3
China Institute of Atomic Energy, Beijing 611731, China
*
Author to whom correspondence should be addressed.
Energies 2023, 16(1), 482; https://doi.org/10.3390/en16010482
Submission received: 19 August 2022 / Revised: 30 October 2022 / Accepted: 21 November 2022 / Published: 1 January 2023
(This article belongs to the Section B4: Nuclear Energy)
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Abstract

The sodium heated once-through steam generator (OTSG) is a vital barrier separating sodium and the water loop in the sodium-cooled fast reactor (SFR). In view of the timeliness requirement of OTSG operation performance evaluation, Fortran95 programming language is used to optimize and improve the solution algorithm of the home-made transient analysis code, named TCOSS, for SFR sodium heated OTSG, which is modified into the JFNK algorithm for solving large sparse nonlinear matrices. It includes a matrix preconditioning module, a Krylov subspace formation module, a GMRES algorithm module and an inexact Newton iteration module. The correctness and efficiency of the algorithm model were verified using benchmarks such as the B1-B transient, ETEC shutdown experiments and seven-tube prototype experiments. The calculation speed was increased by more than four times.
Keywords: sodium heated OTSG; JFNK algorithm; thermal hydraulic sodium heated OTSG; JFNK algorithm; thermal hydraulic

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MDPI and ACS Style

Wang, B.; Feng, Z.; Chen, Y.; Zhang, D.; Wu, Z.; Li, J.; Li, M.; Ma, R.; Li, C. Optimization and Improvement of Sodium Heated Once-through Steam Generator Transient Analysis Code Based on the JFNK Algorithm. Energies 2023, 16, 482. https://doi.org/10.3390/en16010482

AMA Style

Wang B, Feng Z, Chen Y, Zhang D, Wu Z, Li J, Li M, Ma R, Li C. Optimization and Improvement of Sodium Heated Once-through Steam Generator Transient Analysis Code Based on the JFNK Algorithm. Energies. 2023; 16(1):482. https://doi.org/10.3390/en16010482

Chicago/Turabian Style

Wang, Bo, Zhenyu Feng, Youchun Chen, Dalin Zhang, Zhiguang Wu, Jun Li, Mingyang Li, Ruoxin Ma, and Chao Li. 2023. "Optimization and Improvement of Sodium Heated Once-through Steam Generator Transient Analysis Code Based on the JFNK Algorithm" Energies 16, no. 1: 482. https://doi.org/10.3390/en16010482

APA Style

Wang, B., Feng, Z., Chen, Y., Zhang, D., Wu, Z., Li, J., Li, M., Ma, R., & Li, C. (2023). Optimization and Improvement of Sodium Heated Once-through Steam Generator Transient Analysis Code Based on the JFNK Algorithm. Energies, 16(1), 482. https://doi.org/10.3390/en16010482

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