The nuclear heating reactor (NHR) is a typical integral pressurized water reactor (iPWR) developed by the institute of nuclear and new energy technology (INET) of Tsinghua University, which has the safety advanced features such as the primary circuit integral arrangement, full-range natural circulation, self-pressurization. Power-level control is crucial for the operational stability and efficiency of the NHR, and the dynamic modeling is a basis for control system design and verification. From the conservation laws of mass, energy and momentum, a lumped-parameter dynamical model is proposed for the nuclear steam supply system (NSSS) based on the 200MWth nuclear heating reactor II (NHR200-II). The steady-state model validation is given by the comparing the parameter values of this model and that for plant design. Then, both the open-loop responses under the disturbances of reactivity and coolant flowrates as well as the closed-loop responses under the case of power ramp are given, where the rationality of the responses are analyzed from the viewpoint of plant physics and thermal-hydraulics. This model can be utilized for not only the control system design but also the development of a real-time simulator for the hardware-in-loop control system verification.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5143-2
PROCEEDINGS PAPER
Dynamic Modeling of the NSSS Based on NHR200-II Nuclear Heating Reactor Available to Purchase
Xiaojin Huang
Xiaojin Huang
Tsinghua University, Beijing, China
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Zhe Dong
Tsinghua University, Beijing, China
Yifei Pan
Tsinghua University, Beijing, China
Miao Liu
Tsinghua University, Beijing, China
Xiaojin Huang
Tsinghua University, Beijing, China
Paper No:
ICONE26-82579, V001T13A026; 6 pages
Published Online:
October 24, 2018
Citation
Dong, Z, Pan, Y, Liu, M, & Huang, X. "Dynamic Modeling of the NSSS Based on NHR200-II Nuclear Heating Reactor." Proceedings of the 2018 26th International Conference on Nuclear Engineering. London, England. July 22–26, 2018. V001T13A026. ASME. https://doi.org/10.1115/ICONE26-82579
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