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Online Monitoring of Plant Assets in the Nuclear Industry

Online Monitoring of Plant Assets in the Nuclear Industry PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
Today's online monitoring technologies provide opportunities to perform predictive and proactive health management of assets within many different industries, in particular the defense and aerospace industries. The nuclear industry can leverage these technologies to enhance safety, productivity, and reliability of the aging fleet of existing nuclear power plants. The U.S. Department of Energy's Light Water Reactor Sustainability Program is collaborating with the Electric Power Research Institute's (EPRI's) Long-Term Operations program to implement online monitoring in existing nuclear power plants. Proactive online monitoring in the nuclear industry is being explored using EPRI's Fleet-Wide Prognostic and Health Management (FW-PHM) Suite software, a set of web-based diagnostic and prognostic tools and databases that serves as an integrated health monitoring architecture. This paper focuses on development of asset fault signatures used to assess the health status of generator step-up transformers and emergency diesel generators in nuclear power plants. Asset fault signatures describe the distinctive features based on technical examinations that can be used to detect a specific fault type. Fault signatures are developed based on the results of detailed technical research and on the knowledge and experience of technical experts. The Diagnostic Advisor of the FW-PHM Suite software matches developed fault signatures with operational data to provide early identification of critical faults and troubleshooting advice that could be used to distinguish between faults with similar symptoms. This research is important as it will support the automation of predictive online monitoring techniques in nuclear power plants to diagnose incipient faults, perform proactive maintenance, and estimate the remaining useful life of assets.

Online Monitoring of Plant Assets in the Nuclear Industry

Online Monitoring of Plant Assets in the Nuclear Industry PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
Today's online monitoring technologies provide opportunities to perform predictive and proactive health management of assets within many different industries, in particular the defense and aerospace industries. The nuclear industry can leverage these technologies to enhance safety, productivity, and reliability of the aging fleet of existing nuclear power plants. The U.S. Department of Energy's Light Water Reactor Sustainability Program is collaborating with the Electric Power Research Institute's (EPRI's) Long-Term Operations program to implement online monitoring in existing nuclear power plants. Proactive online monitoring in the nuclear industry is being explored using EPRI's Fleet-Wide Prognostic and Health Management (FW-PHM) Suite software, a set of web-based diagnostic and prognostic tools and databases that serves as an integrated health monitoring architecture. This paper focuses on development of asset fault signatures used to assess the health status of generator step-up transformers and emergency diesel generators in nuclear power plants. Asset fault signatures describe the distinctive features based on technical examinations that can be used to detect a specific fault type. Fault signatures are developed based on the results of detailed technical research and on the knowledge and experience of technical experts. The Diagnostic Advisor of the FW-PHM Suite software matches developed fault signatures with operational data to provide early identification of critical faults and troubleshooting advice that could be used to distinguish between faults with similar symptoms. This research is important as it will support the automation of predictive online monitoring techniques in nuclear power plants to diagnose incipient faults, perform proactive maintenance, and estimate the remaining useful life of assets.

PREDICTIVE BASED MONITORING OF NUCLEAR PLANT COMPONENT DEGRADATION USING SUPPORT VECTOR REGRESSION.

PREDICTIVE BASED MONITORING OF NUCLEAR PLANT COMPONENT DEGRADATION USING SUPPORT VECTOR REGRESSION. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
Nuclear power plants (NPPs) are large installation comprised of many active and passive assets. Degradation monitoring of all these assets is expensive (labor cost) and highly demanding task. In this paper a framework based on Support Vector Regression (SVR) for online surveillance of critical parameter degradation of NPP components is proposed. In this case, on time replacement or maintenance of components will prevent potential plant malfunctions, and reduce the overall operational cost. In the current work, we apply SVR equipped with a Gaussian kernel function to monitor components. Monitoring includes the one-step-ahead prediction of the component's respective operational quantity using the SVR model, while the SVR model is trained using a set of previous recorded degradation histories of similar components. Predictive capability of the model is evaluated upon arrival of a sensor measurement, which is compared to the component failure threshold. A maintenance decision is based on a fuzzy inference system that utilizes three parameters: i) prediction evaluation in the previous steps, ii) predicted value of the current step, iii) and difference of current predicted value with components failure thresholds. The proposed framework will be tested on turbine blade degradation data.

On-line Monitoring for Improving Performance of Nuclear Power Plants

On-line Monitoring for Improving Performance of Nuclear Power Plants PDF Author: International Atomic Energy Agency
Publisher:
ISBN: 9789201117076
Category : Nuclear power plants
Languages : en
Pages : 109

Book Description
On-line monitoring techniques have been under development over the past two decades for a variety of applications in process and power industries. In the nuclear power industry, on-line monitoring techniques have been considered for instrument calibration verification as well as equipment and plant condition monitoring. This publication reviews the state of the art in on-line equipment monitoring for nuclear power plant (NPP) applications. Its focus is on instrument calibration verification and extension of calibration intervals of sensors, transmitters and channels. This publication also includes reviews of regulatory positions on this subject and provides examples of implementation of on-line monitoring techniques in NPPs. Furthermore, the in-situ methods for verifying the dynamic performance and response time of process instrumentation are reviewed.--Publisher's description.

NUREG/CR.

NUREG/CR. PDF Author: U.S. Nuclear Regulatory Commission
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 48

Book Description


Plan for Demonstration of Online Monitoring for the Light Water Reactor Sustainability Online Monitoring Project

Plan for Demonstration of Online Monitoring for the Light Water Reactor Sustainability Online Monitoring Project PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
Condition based online monitoring technologies and development of diagnostic and prognostic methodologies have drawn tremendous interest in the nuclear industry. It has become important to identify and resolve problems with structures, systems, and components (SSCs) to ensure plant safety, efficiency, and immunity to accidents in the aging fleet of reactors. The Machine Condition Monitoring (MCM) test bed at INL will be used to demonstrate the effectiveness to advancement in online monitoring, sensors, diagnostic and prognostic technologies on a pilot-scale plant that mimics the hydraulics of a nuclear plant. As part of this research project, INL will research available prognostics architectures and their suitability for deployment in a nuclear power plant. In addition, INL will provide recommendation to improve the existing diagnostic and prognostic architectures based on the experimental analysis performed on the MCM test bed.

Intelligent Computing Systems

Intelligent Computing Systems PDF Author: George A. Tsihrintzis
Publisher: Springer
ISBN: 3662491796
Category : Technology & Engineering
Languages : en
Pages : 371

Book Description
This book at hand explores emerging scientific and technological areas in which Intelligent Computing Systems provide efficient solutions and, thus, may play a role in the years to come. It demonstrates how Intelligent Computing Systems make use of computational methodologies that mimic nature-inspired processes to address real world problems of high complexity for which exact mathematical solutions, based on physical and statistical modelling, are intractable. Common intelligent computational methodologies are presented including artificial neural networks, evolutionary computation, genetic algorithms, artificial immune systems, fuzzy logic, swarm intelligence, artificial life, virtual worlds and hybrid methodologies based on combinations of the previous. The book will be useful to researchers, practitioners and graduate students dealing with mathematically-intractable problems. It is intended for both the expert/researcher in the field of Intelligent Computing Systems, as well as for the general reader in the fields of Artificial and Computational Intelligence who wishes to learn more about the field of Intelligent Computing Systems and its applications. An extensive list of bibliographic references at the end of each chapter guides the reader to probe further into application area of interest to him/her.

Advances in Greener Energy Technologies

Advances in Greener Energy Technologies PDF Author: Akash Kumar Bhoi
Publisher: Springer Nature
ISBN: 9811542465
Category : Technology & Engineering
Languages : en
Pages : 847

Book Description
This book presents ongoing research activities of currently available renewable energy technologies and the approaches towards clean technology for enabling a socio-economic model for the present and future generations to live in a clean and healthy environment. The book provides chapter wise implementation of research works in the area of green energy technologies with proper methods used with solution strategies and energy efficiency approaches by combining theory and practical applications. Readers are introduced to practical problems of green computation and hybrid resources optimization with solution based approaches from the current research outcomes. The book will be of use to researchers, professionals, and policy-makers alike.

Communication Pathways in the Light Water Reactor Sustainability Online Monitoring Project

Communication Pathways in the Light Water Reactor Sustainability Online Monitoring Project PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
Implementation of online monitoring and prognostics in existing U.S. nuclear power plants will involve coordinating the efforts of national laboratories, utilities, universities, and private companies. Large amounts of operational data, including failure data, are necessary for the development and calibration of diagnostic and prognostic algorithms. The ability to use data from all available resources will provide the most expeditious avenue to implementation of online monitoring in existing NPPs; however, operational plant data are often considered proprietary. Secure methods for transferring and storing data are discussed, along with a potential technology for implementation of online monitoring.

Nuclear Energy Basic Principles

Nuclear Energy Basic Principles PDF Author: International Atomic Energy Agency
Publisher:
ISBN: 9789201126085
Category : Business & Economics
Languages : en
Pages : 0

Book Description
Describes the rationale and vision for the peaceful use of nuclear energy. The publication identifies the basic principles that nuclear energy systems must satisfy to fulfil their promise of meeting growing global energy demands.

Energy: Nuclear

Energy: Nuclear PDF Author: Michael Ratner
Publisher: The Capitol Net Inc
ISBN: 1587332183
Category : Technology & Engineering
Languages : en
Pages : 659

Book Description
Part of the government series on energy, from TheCapitol.Net, this text discusses the nuclear energy issues facing Congress including federal incentives for new commercial reactors, radioactive waste management policy, research and development priorities, power plant safety and regulation, nuclear weapons proliferation, and security against terrorist attacks.