scholarly journals New Technologies for Repairing Aging Cables in Nuclear Power Plants

2013 ◽  
Author(s):  
Kevin L. Simmons ◽  
Leonard S. Fifield ◽  
Matthew P. Westman
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
New Technologies

Instrumentation and Controls Design and Maintenance Strategy for Small Modular Reactors

2014 ◽  
Author(s):  
Alex H. Hashemian ◽  
Hash M. Hashemian ◽  
Tommy C. Thomasson ◽  
Jeffrey R. Kapernick
Keyword(s):  
Response Time ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
New Technologies ◽  
Early Stage ◽  
Department Of Energy ◽  
Forced Flow ◽  
Small Modular Reactors ◽  
And Control

Small Modular Reactors (SMRs) under design and development today are working to crystallize the measurements that must be made to control the reactor and monitor its safety. Traditionally, temperature, pressure, level, flow, and neutron flux are measured in conventional nuclear reactors for operation and control and to protect against equipment and process deviations that can affect safety. In most current SMR designs, essentially the same process variables may have to be measured; especially primary coolant flow depending on whether the core cooling and heat transfer results from natural circulation or forced flow. The flow can be measured directly or inferred from other measurements or estimated through empirical or physical modeling. The conventional sensors that are qualified for nuclear services and are currently used in nuclear power plants may or may not be suitable for SMRs. It all depends on the size and qualification requirements, installation details, static and dynamic performance specifications, wiring details, and sensor life expectancy. This paper will explore the possibilities that exist for SMRs to use today’s sensors and any need for new sensor designs. In addition, the paper will identify new means for automated monitoring of instrumentation and control (I&C) sensor performance in SMRs. In particular, the existing array of online calibration monitoring techniques and in-situ response time measurement methods will be evaluated for implementation in SMRs. This is important at this early stage as SMRs can easily build provisions in their mechanical, electrical, and I&C designs to accommodate online and automated I&C maintenance. For example, it is envisioned that SMRs will not be performing periodic sensor calibrations using classical hands-on procedures. Rather, SMRs are expected to be equipped with new technologies to verify the I&C performance automatically and flag the sensors and systems to be calibrated, response time tested, repaired, or replaced. The paper will explore these possibilities and will report on a current R&D project that is underway at AMS with funding from the U.S. Department of Energy (DOE) with the goal to adapt the existing online monitoring (OLM) technologies for implementation in SMRs. The existing OLM technologies have been used by AMS in commercial nuclear power plants and research reactors for monitoring of I&C equipment performance including calibration, response time, detection of sensing line blockages, and to distinguish whether a signal anomaly is due to cables/connectors, electromagnetic interference, an end device being a sensor or a pump, other rotating equipment, etc.

scholarly journals New Technologies for Repairing Aging Cables in Nuclear Power Plants: M3LW-14OR0404015 Cable Rejuvenation Report

2014 ◽  
Author(s):  
Kevin L. Simmons ◽  
Leonard S. Fifield ◽  
Matthew P. Westman ◽  
John A. Roberts
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
New Technologies

scholarly journals Социальная приемлемость экологического риска населением в регионах деятельности атомных электростанций

2018 ◽  
Vol 8 (1) ◽  
pp. 409-419
Author(s):  
S. G. Maksimova ◽  
M. M. Akulich ◽  
V. V. Pit ◽  
O. E. Noyanzina ◽  
D. A. Omelchenko
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
New Technologies ◽  
Social Role ◽  
Nuclear Industry ◽  
Necessary Condition ◽  
Ecological Security ◽  
The Social

<p>The use of nuclear technology increases the ecological risk for the society and people’s moods, inevitably. The article presents results of monitoring, realized in 2013–2015 in nine subjects of the Russian Federation – territories of disposition of the Concern RosEnergoAtom branches – the Voronezhskaya oblast, the Kurskaya oblast, the Leningrad oblast, the Saratovskaya oblast, the Sverdlovskaya oblast, the Murmanskaya oblast, the Rostovskaya oblast, the Tverskaya oblast, and the Smolenskaya oblast. Authors considered social moods of population in regions of location of nuclear power plants, people’s trust to the nuclear industry, opinions about its reliability and safety, and perspectives for the further development. The article contains the results of comparative analysis of integral indexes, characterizing social admissibility of nuclear industry and evaluation of social role of the nuclear power plants in regional economic development. We suggested, that indexes of general and ecological security of the nuclear power plant, revealing the estimations of reliability, stability, general and ecological security, implication of new technologies of protection, implementation of new technologies of environment protection, realized by administrative bodies of the nuclear power plants could could vary in different regions. We proved, that the social admissibility of the risk in regions of nuclear power plants location is a necessary condition for the development of the nuclear industry, elimination of social tension, and formation of positive social moods in regions and cities of location of nuclear power plants.</p>

Research and Design of Technology Readiness Levels Evaluating System for Digital Instrumentation and Control System

2013 ◽  
Vol 448-453 ◽  
pp. 3629-3634
Author(s):  
Wen Yuan Yang ◽  
Ning Li ◽  
Ying Ru Zhao
Keyword(s):  
Control System ◽  
Evaluation System ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
New Technologies ◽  
Technology Readiness ◽  
Automatic Data ◽  
Digital Instrumentation ◽  
And Control

Technology Readiness Levels have a great superiority to evaluate new technologies, and have been adopted by U.S. Congress General Accountability Office, Department of Defense and will be considered in numerous other organizations. In this study, Technology Readiness Levels are customized to assess the Digital Instrumentation and Control system of nuclear power plants. The Technology Readiness Levels evaluation system based on Browser/Server structure is designed. The flow chart of the evaluation system, automatic data analysis system, and the tables relation of database are presented. The Browser/Server structure enables multi-experts use Browser to assess the Digital Instrumentation and Control system of nuclear power plants in different places through the Internet. The Technology Readiness Levels evaluation system can easy the organizing work and reduce fees of Technology Readiness assessment works of Digital Instrumentation and Control system.

Work structure in nuclear power plants

1983 ◽  
Author(s):  
Marjorie B. Bauman ◽  
Richard F. Pain ◽  
Harold P. Van Cott ◽  
Margery K. Davidson
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Work Structure

Life Extension of Nuclear Power Plants: World Situation and the USA Case

2010 ◽  
pp. 50-56 ◽  
Author(s):  
Pablo T. León ◽  
Loreto Cuesta ◽  
Eduardo Serra ◽  
Luis Yagüe
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Life Extension ◽  
The Usa
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