286 research outputs found

    May 7, 2016 (Pages 2261-2396)

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    DEVELOPMENT OF INSTRUMENTATION AND CONTROL SYSTEMS FOR AN INTEGRAL LARGE SCALE PRESSURIZED WATER REACTOR

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    Small and large scale integral light water reactors are being developed to supply electrical power and to meet the needs of process heat, primarily for water desalination. This dissertation research focuses on the instrumentation and control of a large integral inherently safe light water reactor (designated as I2S-LWR) which is being designed as part of a grant by the U.S. Department of Energy Integrated Research Project (IRP). This 969 MWe integral pressurized water reactor (PWR) incorporates as many passive safety features as possible while maintaining competitive costs with current light water reactors. In support of this work, the University of Tennessee has been engaged in research to solve the instrumentation and control challenges posed by such a reactor design. This dissertation is a contribution to this effort. The objectives of this dissertation are to establish the feasibility and conceptual development of instrumentation strategies and control approaches for the I2S-LWR, with consideration to the state of the art of the field. The objectives of this work are accomplished by the completion of the following tasks: Assessment of instrumentation needs and technology gaps associated with the instrumentation of the I2S-LWR for process monitoring and control purposes. Development of dynamic models of a large integral PWR core, micro-channel heat exchangers (MCHX) that are contained within the reactor pressure vessel, and steam flashing drums located external to the containment building. Development and demonstration of control strategies for reactor power regulation, steam flashing drum pressure regulation, and flashing drum water level regulation for steady state and load-following conditions. Simulation, detection, and diagnosis of process anomalies in the I2S-LWR model. This dissertation is innovative and significant in that it reports the first instrumentation and control study of nuclear steam supply by integral pressurized water reactor coupled to an isenthalpic expansion vessel for steam generation. Further, this dissertation addresses the instrumentation and control challenges associated with integral reactors, as well as improvements to inherent safety possible in the instrumentation and control design of integral reactors. The results of analysis and simulation demonstrate the successful development of dynamic modeling, control strategies, and instrumentation for a large integral PWR

    November 11, 2015 (Wednesday) Daily Journal

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    January 23, 2010 (Pages 505-578)

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    October 3, 2009 (Pages 5713-5882)

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    April 14, 2007 (Pages 1631-1830)

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    March 13, 2010 (Pages 1387-1480)

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    DRONES FOR IMPROVING TRAFFIC SAFETY IN RITI COMMUNITIES IN WASHINGTON STATE

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    Transportation and traffic safety is a primary concern in Rural, Isolated, Tribal, or Indigenous (RITI) communities in Washington (WA) State. Parallel to this, while emerging technologies (e.g., connected/autonomous vehicles, drones) have been developed and tested in addressing traffic safety issues, they are often not widely shared in RITI communities for various reasons. Compared with other technological advances, drone technologies have been rapidly improved and can be flexibly applied to multiple fields, including engineering, agriculture and disaster managements. The goal of this study is to explore and synthesize the opportunities, challenges and scenarios that drone technologies can assist to resolve traffic safety related issues and concerns in RITI communities. Through the outreach activities with the outer Pacific Coast in WA state, it is found that the principal concern within these communities are disaster management and mitigation since they are facing the threat of coastal erosion, earthquake and tsunami. Thus, the emergency management and hazard mitigation becomes the major way to further explore drone applications in the selected communities. To achieve this, we reviewed the current state of the drone technologies, conducted surveys from National Guard and coastal communities in WA, including City of Westport, South Beach Region, Grays Harbor County, Shoalwater Bay Tribe, and Quinault Indian Nation, to better understand their current needs, challenges and issues. Ultimately, recommendations of drone applications under specific scenarios are provided based upon the integration of drone technologies with community safety needs.TABLE OF CONTENTS Disclaimer....................................................................................................................................................... i Technical Report Documentation Page ........................................................................................................ ii SI* (Modern Metric) Conversion Factors ..................................................................................................... iii List of Figures ................................................................................................................................................ v List of Tables ................................................................................................................................................ vi Executive Summary ....................................................................................................................................... 1 CHAPTER 1. Introduction .......................................................................................................................... 2 1.1. General Background ...................................................................................................................... 2 1.2. Problem Statement ....................................................................................................................... 3 CHAPTER 2. Literature review of drone technology and Application ....................................................... 5 2.1. State of the Art Drone Technologies............................................................................................. 5 2.2. Practice of drones in Washington State ........................................................................................ 6 CHAPTER 3. Outreach activities ................................................................................................................ 7 3.1. Community Engagement for Coastal Resilience Studio ................................................................ 8 3.1.1. Westport/South Beach Workshop – 11/2018 (27) ............................................................. 10 3.2. WA National Guard Workshop – 6/2019 .................................................................................... 11 CHAPTER 4. Online survey ...................................................................................................................... 14 CHAPTER 5. results and recommendationS ............................................................................................ 15 5.1. Outreach Activity Findings .......................................................................................................... 15 5.1.1. Transportation and Traffic Safety in Westport ................................................................... 15 5.1.2. Learning from WA National Guard Workshop .................................................................... 17 5.2. Online Survey Results.................................................................................................................. 18 5.3. Recommendation of drone applications .................................................................................... 18 CHAPTER 6. conclusion and future study ............................................................................................... 24 Reference .................................................................................................................................................... 25 Appendix A: UAV (Drones) technologies ...................................................................................................... 1 Appendix B: Workshop report for Westport Coastal Resilience................................................................... 1 Appendix C: Online Survey ............................................................................................................................ 1 Appendix D: Executive Summary of Westport Costal Resilience Report ...................................................... 1 Appendix E: Transportation Chapter of Westport Costal Resilience Report ................................................
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