Author: Hiroshi Nishihara
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 20
Book Description
Investigation on Stability of a Boiling Heavy Water Reactor
Author: Hiroshi Nishihara
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 20
Book Description
Experimental and Numerical Stability Investigations on Natural Circulation Boiling Water Reactors
Author: Christian Pablo Marcel
Publisher: IOS Press
ISBN: 1586038036
Category : Technology & Engineering
Languages : en
Pages : 160
Book Description
In the design of novel nuclear reactors active systems are replaced by passive ones in order to reduce the risk of failure. For that reason natural circulation is being considered as the primary cooling mechanism in next generation nuclear reactor designs such as the natural circulation boiling water reactor (BWR). In such a reactor, however, the flow is not a controlled parameter but is dependent on the power. As a result, the dynamical behavior significantly differs from that in conventional forced circulation BWRs. For that reason, predicting the stability characteristics of these reactors has to be carefully studied. In this work, a number of open issues are investigated regarding the stability of natural circulation BWRs (e.g. margins to instabilities at rated conditions, interaction between the thermal-hydraulics and the neutronics, and the occurrence of flashing induced instabilities) with a strong emphasis on experimental evidence.
Publisher: IOS Press
ISBN: 1586038036
Category : Technology & Engineering
Languages : en
Pages : 160
Book Description
In the design of novel nuclear reactors active systems are replaced by passive ones in order to reduce the risk of failure. For that reason natural circulation is being considered as the primary cooling mechanism in next generation nuclear reactor designs such as the natural circulation boiling water reactor (BWR). In such a reactor, however, the flow is not a controlled parameter but is dependent on the power. As a result, the dynamical behavior significantly differs from that in conventional forced circulation BWRs. For that reason, predicting the stability characteristics of these reactors has to be carefully studied. In this work, a number of open issues are investigated regarding the stability of natural circulation BWRs (e.g. margins to instabilities at rated conditions, interaction between the thermal-hydraulics and the neutronics, and the occurrence of flashing induced instabilities) with a strong emphasis on experimental evidence.
Analysis of Boiling Water Reactor Design and Operating Conditions Effect on Stability Behaviour
Author: Elias Amselem Abecasis
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
It is well known that boiling water reactors can experience inadvertent power oscillations. When such instability occurs the core can oscillate in two different modes (in phase mode and out of phase mode). In the late 90's a stability benchmark was created using the stability data obtained from the experiments at the Swedish nuclear power plant of Ringhals-1. Data was collected from the cycles 14, 15 , 16 and 17. Later on, this data was used to validate the various models and codes with the aim of predicting the instability behavior of the core and understand the triggers of such oscillations. The current trend of increasing reactor power density and relying on natural circulation for core cooling may have consequences for the stability of modern BWR's designs. The objective of this work is to find the most important parameters affecting the stability of the BWRs and propose alternative stability maps. For this purpose a TRACE/PARCS model of the Ringhals-1 NPP will be used. Afterwards a selection of possible parameters and dimensionless numbers will be made to study its effect on stability. Once those parameters are found they will be included in the stability maps to make them more accurate.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
It is well known that boiling water reactors can experience inadvertent power oscillations. When such instability occurs the core can oscillate in two different modes (in phase mode and out of phase mode). In the late 90's a stability benchmark was created using the stability data obtained from the experiments at the Swedish nuclear power plant of Ringhals-1. Data was collected from the cycles 14, 15 , 16 and 17. Later on, this data was used to validate the various models and codes with the aim of predicting the instability behavior of the core and understand the triggers of such oscillations. The current trend of increasing reactor power density and relying on natural circulation for core cooling may have consequences for the stability of modern BWR's designs. The objective of this work is to find the most important parameters affecting the stability of the BWRs and propose alternative stability maps. For this purpose a TRACE/PARCS model of the Ringhals-1 NPP will be used. Afterwards a selection of possible parameters and dimensionless numbers will be made to study its effect on stability. Once those parameters are found they will be included in the stability maps to make them more accurate.
An Analysis of Boiling Water Nuclear Reactor Stability Margin
Author:
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 222
Book Description
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 222
Book Description
Linear and Non-linear Stability Analysis in Boiling Water Reactors
Author: Alfonso Prieto Guerrero
Publisher: Woodhead Publishing
ISBN: 0081024460
Category : Business & Economics
Languages : en
Pages : 474
Book Description
Linear and Non-Linear Stability Analysis in Boiling Water Reactors: The Design of Real-Time Stability Monitors presents a thorough analysis of the most innovative BWR reactors and stability phenomena in one accessible resource. The book presents a summary of existing literature on BWRs to give early career engineers and researchers a solid background in the field, as well as the latest research on stability phenomena (propagation phenomena in BWRs), nuclear power monitors, and advanced computer systems used to for the prediction of stability. It also emphasizes the importance of BWR technology and embedded neutron monitoring systems (APRMs and LPRMs), and introduces non-linear stability parameters that can be used for the onset detection of instabilities in BWRs. Additionally, the book details the scope, advantages, and disadvantages of multiple advanced linear and non linear signal processing methods, and includes analytical case studies of existing plants. This combination makes Linear and Non-Linear Stability Analysis in Boiling Water Reactors a valuable resource for nuclear engineering students focusing on linear and non-linear analysis, as well as for those working and researching in a nuclear power capacity looking to implement stability methods and estimate decay ratios using non-linear techniques. Explores the nuclear stability of Boiling Water Reactors based on linear and non-linear models Evaluates linear signal processing methods such as autoregressive models, Fourier-based methods, and wavelets to calculate decay ratios Proposes novel non-linear signal analysis techniques linked to non-linear stability indicators Includes case studies of various existing nuclear power plants as well as mathematical models and simulations
Publisher: Woodhead Publishing
ISBN: 0081024460
Category : Business & Economics
Languages : en
Pages : 474
Book Description
Linear and Non-Linear Stability Analysis in Boiling Water Reactors: The Design of Real-Time Stability Monitors presents a thorough analysis of the most innovative BWR reactors and stability phenomena in one accessible resource. The book presents a summary of existing literature on BWRs to give early career engineers and researchers a solid background in the field, as well as the latest research on stability phenomena (propagation phenomena in BWRs), nuclear power monitors, and advanced computer systems used to for the prediction of stability. It also emphasizes the importance of BWR technology and embedded neutron monitoring systems (APRMs and LPRMs), and introduces non-linear stability parameters that can be used for the onset detection of instabilities in BWRs. Additionally, the book details the scope, advantages, and disadvantages of multiple advanced linear and non linear signal processing methods, and includes analytical case studies of existing plants. This combination makes Linear and Non-Linear Stability Analysis in Boiling Water Reactors a valuable resource for nuclear engineering students focusing on linear and non-linear analysis, as well as for those working and researching in a nuclear power capacity looking to implement stability methods and estimate decay ratios using non-linear techniques. Explores the nuclear stability of Boiling Water Reactors based on linear and non-linear models Evaluates linear signal processing methods such as autoregressive models, Fourier-based methods, and wavelets to calculate decay ratios Proposes novel non-linear signal analysis techniques linked to non-linear stability indicators Includes case studies of various existing nuclear power plants as well as mathematical models and simulations
A Boiling Water Reactor Simulator for Stability Analysis
Author: Chi Kao
Publisher:
ISBN:
Category :
Languages : en
Pages : 548
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 548
Book Description
Boiling Water Reactor Stability Analysis by Stochastic Transfer Function Identification
Author: Minsun Ouyang
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 502
Book Description
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 502
Book Description
Investigation of Reactor Transients and Power Patterns of a Heavy Water-moderated, Boiling Heavy Water-cooled Reactor
Author: C. Graves
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Boiling water reactors
Languages : en
Pages : 64
Book Description
Boiling Water Reactor Stability Analysis in the Time Domain
Author: Jeffrey Alan Borkowski
Publisher:
ISBN:
Category :
Languages : en
Pages : 199
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 199
Book Description
An Advanced Frequency-domain Code for Boiling Water Reactor (BWR) Stability Analysis and Design
Author: Martin Schraner
Publisher:
ISBN:
Category :
Languages : en
Pages : 169
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 169
Book Description