CLC number: TL36
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2011-06-21
Cited: 0
Clicked: 5551
Yang Chen, Jiang-hong You, Zhi-jiang Shao, Ke-xin Wang, Ji-xin Qian. Simultaneous approach for simulation of a high-temperature gas-cooled reactor[J]. Journal of Zhejiang University Science A, 2011, 12(7): 567-574.
@article{title="Simultaneous approach for simulation of a high-temperature gas-cooled reactor",
author="Yang Chen, Jiang-hong You, Zhi-jiang Shao, Ke-xin Wang, Ji-xin Qian",
journal="Journal of Zhejiang University Science A",
volume="12",
number="7",
pages="567-574",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1010432"
}
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%A Yang Chen
%A Jiang-hong You
%A Zhi-jiang Shao
%A Ke-xin Wang
%A Ji-xin Qian
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 7
%P 567-574
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1010432
TY - JOUR
T1 - Simultaneous approach for simulation of a high-temperature gas-cooled reactor
A1 - Yang Chen
A1 - Jiang-hong You
A1 - Zhi-jiang Shao
A1 - Ke-xin Wang
A1 - Ji-xin Qian
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 7
SP - 567
EP - 574
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1010432
Abstract: The simulation of a high-temperature gas-cooled reactor pebble-bed module (HTR-PM) plant is discussed. This lumped parameter model has the form of a set differential algebraic equations (DAEs) that include stiff equations to model point neutron kinetics. The nested approach is the most common method to solve DAE, but this approach is very expensive and time-consuming due to inner iterations. This paper deals with an alternative approach in which a simultaneous solution method is used. The DAEs are discretized over a time horizon using collocation on finite elements, and Radau collocation points are applied. The resulting nonlinear algebraic equations can be solved by existing solvers. The discrete algorithm is discussed in detail; both accuracy and stability issues are considered. Finally, the simulation results are presented to validate the efficiency and accuracy of the simultaneous approach that takes much less time than the nested one.
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