Results 261 to 270 of about 5,445,549 (348)
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, 2021
The load following of nuclear power plants (NPPs) has been a contentious issue in the control field. In this paper, we propose a chattering-free higher order sliding mode control scheme with a high-gain observer for the load following of a pressurized ...
Jiuwu Hui, Jing-Qi Yuan
semanticscholar +1 more source
The load following of nuclear power plants (NPPs) has been a contentious issue in the control field. In this paper, we propose a chattering-free higher order sliding mode control scheme with a high-gain observer for the load following of a pressurized ...
Jiuwu Hui, Jing-Qi Yuan
semanticscholar +1 more source
Instrumentation and control strategies for an integral pressurized water reactor [PDF]
Nuclear Engineering and Technology, 2015 Several vendors have recently been actively pursuing the development of integral pressurized water reactors (iPWRs) that range in power levels from small to large reactors.
J Hines, Belle R Upadhyaya
exaly +2 more sources
Nodal models of Pressurized Water Reactor core for control purposes – A comparison study
Nuclear Engineering and Design, 2017Tomasz Rutkowski +2 more
exaly +2 more sources
Digital Nonlinear Control for a Pressurizer in a Pressurized Water Reactor
Volume 5: Fuel Cycle, Radioactive Waste Management and Decommissioning; Reactor Physics and Transport Theory; Nuclear Education, Public Acceptance and Related Issues; Instrumentation and Controls; Fusion Engineering, 2013Studying criteria ensuring better implementations of control laws and logics on digital programmable devices is today a crucial point in order to improve performance and safety in nuclear plants of novel design. To this aim, a mathematical model of a PWR is considered, describing the dynamics of the primary circuit. This model is simple enough to allow
B. Castillo Toledo +4 more
openaire +3 more sources
, 2020
The early corrosion behaviour of an irradiated FeCrAl alloy in a simulated pressurized water reactor environment was investigated. The irradiated alloy showed a Cr-rich oxide layer, which was not observed in the as-received alloy.
Weisong Wu +6 more
semanticscholar +1 more source
The early corrosion behaviour of an irradiated FeCrAl alloy in a simulated pressurized water reactor environment was investigated. The irradiated alloy showed a Cr-rich oxide layer, which was not observed in the as-received alloy.
Weisong Wu +6 more
semanticscholar +1 more source
Annals of Nuclear Energy, 2020
Due to nonlinearity and complexity of pressurized water reactor (PWR), the simple and practical controller for PWR is relatively difficult to design. This study discusses a novel compound control scheme that combines the advantages of partial feedback ...
Yu-Yan Liu, Ji-Zhen Liu, Shi-Liang Zhou
semanticscholar +1 more source
Due to nonlinearity and complexity of pressurized water reactor (PWR), the simple and practical controller for PWR is relatively difficult to design. This study discusses a novel compound control scheme that combines the advantages of partial feedback ...
Yu-Yan Liu, Ji-Zhen Liu, Shi-Liang Zhou
semanticscholar +1 more source
Experimental measurements of flow mixing in cold leg of a pressurized water reactor
Annals of Nuclear Energy, 2020The main objective of OECD/NEA Cold Leg Mixing CFD-UQ Benchmark exercise is to evaluate the use of CFD simulations for safety issues related to mixing phenomena in the cold leg and downcomer of a Pressurized Water Reactor.
D. Orea +3 more
semanticscholar +1 more source
, 2020
The effects of dissolved hydrogen (DH) on the low-cycle fatigue (LCF) behaviors and the hydrogen uptake inside the samples of 316LN stainless steel were investigated in simulated pressurized water reactor (PWR) primary water with various DH levels at a ...
Y. Xiong, Yutaka Watanabe, Y. Shibayama
semanticscholar +1 more source
The effects of dissolved hydrogen (DH) on the low-cycle fatigue (LCF) behaviors and the hydrogen uptake inside the samples of 316LN stainless steel were investigated in simulated pressurized water reactor (PWR) primary water with various DH levels at a ...
Y. Xiong, Yutaka Watanabe, Y. Shibayama
semanticscholar +1 more source
, 2021
A nuclear reactor is a complex, nonlinear, and time-varying system. External disturbances and uncertainty due to neutronic and thermal-hydraulics parameters variation contribute to reactor control challenges and safe operations. Thus, this paper presents
K. Abdulraheem, S. Korolev
semanticscholar +1 more source
A nuclear reactor is a complex, nonlinear, and time-varying system. External disturbances and uncertainty due to neutronic and thermal-hydraulics parameters variation contribute to reactor control challenges and safe operations. Thus, this paper presents
K. Abdulraheem, S. Korolev
semanticscholar +1 more source
A fuzzy-logic-based pressure setpoint modification method for pressurized water reactor pressurizers
, 2020For pressurized water reactors, the pressurizer pressure is expected to be maintained constant to limit adverse impacts on the reactor due to pressure variations.
Pengfei Wang +3 more
semanticscholar +1 more source