Download or read book Automatic Scheduling of Outages of Nuclear Power Plants with Time Windows written by Carla Gomes and published by . This book was released on 1996 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automatic Scheduling of Outages of Nuclear Power Plants with Time Windows written by Carla Gomes and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Parallel Processing Technologies written by Xingming Zhou and published by Springer Science & Business Media. This book was released on 2003-09-09 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 5th International Workshop on Advanced Parallel Processing Technologies, APPT 2003, held in Xiamen, China in September 2003. The 57 revised full papers and 21 revised short papers presented were carefully reviewed and selected from 191 full paper submissions. All current aspects in parallel and distributed computing are addressed ranging from hardware and software issues to algorithmic aspects and advanced applications. The papers are organized in topical sections on architecture, software and theory, grid and network, and applied technologies.
Download or read book Synthesis of Power Plant Outage Schedulers written by Carla Gomes and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We describe the synthesis of efficient schedulers for planned shutdowns of power plants for refueling and maintenance (outages), using an automated programming tool, KIDS. Currently, the utility industry has no automated tools to generate schedules that are both safe and resource-efficient. We focused on safety constraints since they are critical in this application. There are several aspects of this project that go beyond previous applications of KIDS to scheduling problems. First, scheduling of outages of power plants has a planning-like character since the scheduler needs to represent and maintain the complex state of the plant at all times considered during the scheduling process. Second, the particular safety constraints we considered required scheduling a pool of resources in the presence of time windows on each activity. To our knowledge the control and data structures that we developed for handling such a pool are novel. In terms of design knowledge, the outage scheduling problem is modeled as a constraint satisfaction problem and the synthesized algorithm is an instance of global search with constraint propagation. The derivation of specialized representations for the constraints to perform efficient propagation is a key aspect of our approach. In addition, finite differencing complements constraint propagation by efficiently maintaining the sate of the world.
Download or read book Synthesis of Power Plant Outage Schedulers written by Carla Gomes and published by . This book was released on 1998 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: We describe the synthesis of efficient schedulers for planned shutdowns of power plants for refueling and maintenance (outages), using an automated programming tool, KIDS. Currently, the utility industry has no automated tools to generate schedules that are both safe and resource-efficient. We focused on safety constraints since they are critical in this application. There are several aspects of this project that go beyond previous applications of KIDS to scheduling problems. First, scheduling of outages of power plants has a planning-like character since the scheduler needs to represent and maintain the complex state of the plant at all times considered during the scheduling process. Second, the particular safety constraints we considered required scheduling a pool of resources in the presence of time windows on each activity. To our knowledge the control and data structures that we developed for handling such a pool are novel. In terms of design knowledge, the outage scheduling problem is modeled as a constraint satisfaction problem and the synthesized algorithm is an instance of global search with constraint propagation. The derivation of specialized representations for the constraints to perform efficient propagation is a key aspect of our approach. In addition, finite differencing complements constraint propagation by efficiently maintaining the sate of the world.
Download or read book Proceedings of the 11th Knowledge based Software Engineering Conference written by IEEE Computer Society and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1996 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents papers from the September 1996 conference discussing the application of automated reasoning, knowledge representation, and other artificial intelligence techniques to software engineering problems, with emphasis on constructing and working with software artifacts and processes using knowledge-based techniques. Coverage includes synthesis, verification and validation, knowledge-based environments, and reverse engineering, with papers on areas including applying plan recognition algorithms to program understanding, and synthesis of local search algorithms by algebraic means. No index. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book Development of Improved Graphical Displays for an Advanced Outage Control Center Employing Human Factors Principles for Outage Schedule Management written by and published by . This book was released on 2015 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long-term viability of existing nuclear power plants in the United States (U.S.) is dependent upon a number of factors, including maintaining high capacity factors, maintaining nuclear safety, and reducing operating costs, particularly those associated with refueling outages. Refueling outages typically take 20-30 days, and for existing light water NPPs in the U.S., the reactor cannot be in operation during the outage. Furthermore, given that many NPPs generate between $1-1.5 million/day in revenue when in operation, there is considerable interest in shortening the length of refueling outages. Yet refueling outages are highly complex operations, involving multiple concurrent and dependent activities that are somewhat challenging to coordinate; therefore, finding ways to improve refueling outage performance, while maintaining nuclear safety has proven to be difficult. The Advanced Outage Control Center (AOCC) project is a research and development (R&D) demonstration activity under the LWRS Program. LWRS is an R&D program that works closely with industry R&D programs to establish technical foundations for the licensing and managing of long-term, safe, and economical operation of current fleet of NPPs. As such, the LWRS Advanced Outage Control Center project has the goal of improving the management of commercial NPP refueling outages. To accomplish this goal, INL is developing an advanced outage control center (OCC) that is specifically designed to maximize the usefulness of communication and collaboration technologies for outage coordination and problem resolution activities. The overall focus is on developing an AOCC with the following capabilities that enables plant and OCC staff to; Collaborate in real-time to address emergent issues; Effectively communicate outage status to all workers involved in the outage; Effectively communicate discovered conditions in the field to the OCC; Provide real-time work status; Provide automatic pending support notifications; Provide real-time requirements monitoring; Maximize their collective situational awareness to improve decision-making; and Leverage macro data to better support resource allocation. INL has partnered with several commercial NPP utilities to develop a number of advanced outage management technologies. These outage management technologies have focused on both collaborative technologies for control centers and developing mobile technologies for NPP field workers. This report describes recent efforts made in developing a suite of outage technologies to support more effective schedule management. Currently, a master outage schedule is created months in advance using the plant’s existing scheduling software (e.g., Primavera P6). Typically, during the outage, the latest version of the schedule is printed at the beginning of each shift. INL and its partners are developing technologies that will have capabilities such as Automatic Schedule Updating, Automatic Pending Support Notifications, and the ability to allocate and schedule outage support task resources on a sub-hour basis (e.g., outage Micro-Scheduling). The remaining sections of this report describe in more detail the scheduling challenges that occur during outages, how the outage scheduling technologies INL is developing helps address those challenges, and the latest developments on this task (e.g., work accomplished to date and the path forward).
Download or read book Status Report on the Development of Micro Scheduling Software for the Advanced Outage Control Center Project written by and published by . This book was released on 2014 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long-term viability of existing nuclear power plants (NPPs) in the United States (U.S.) is dependent upon a number of factors, including maintaining high capacity factors, maintaining nuclear safety, and reducing operating costs, particularly those associated with refueling outages. Refueling outages typically take 20-30 days, and for existing light water NPPs in the U.S., the reactor cannot be in operation during the outage. Furthermore, given that many NPPs generate between $1-1.5 million/day in revenue when in operation, there is considerable interest in shortening the length of refueling outages. Yet, refueling outages are highly complex operations, involving multiple concurrent and dependent activities that are difficult to coordinate. Finding ways to improve refueling outage performance while maintaining nuclear safety has proven to be difficult. The Advanced Outage Control Center project is a research and development (R & D) demonstration activity under the Light Water Reactor Sustainability (LWRS) Program. LWRS is a R & D program which works with industry R & D programs to establish technical foundations for the licensing and managing of long-term, safe, and economical operation of current NPPs. The Advanced Outage Control Center project has the goal of improving the management of commercial NPP refueling outages. To accomplish this goal, this INL R & D project is developing an advanced outage control center (OCC) that is specifically designed to maximize the usefulness of communication and collaboration technologies for outage coordination and problem resolution activities. This report describes specific recent efforts to develop a capability called outage Micro-Scheduling. Micro-Scheduling is the ability to allocate and schedule outage support task resources on a sub-hour basis. Micro-Scheduling is the real-time fine-tuning of the outage schedule to react to the actual progress of the primary outage activities to ensure that support task resources are optimally deployed with the least amount of delay and unproductive use of resources. The remaining sections of this report describe in more detail the scheduling challenges that occur during outages, how a Micro-Scheduling capability helps address those challenges, and provides a status update on work accomplished to date and the path forward.
Download or read book Command Control Communications and Intelligence Systems for Law Enforcement written by Edward M. Carapezza and published by SPIE-International Society for Optical Engineering. This book was released on 1997 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Collaboration Software to Improve Nuclear Power Plant Outage Management written by and published by . This book was released on 2015 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Power Plant (NPP) refueling outages create some of the most challenging activities the utilities face in both tracking and coordinating thousands of activities in a short period of time. Other challenges, including nuclear safety concerns arising from atypical system configurations and resource allocation issues, can create delays and schedule overruns, driving up outage costs. Today the majority of the outage communication is done using processes that do not take advantage of advances in modern technologies that enable enhanced communication, collaboration and information sharing. Some of the common practices include: runners that deliver paper-based requests for approval, radios, telephones, desktop computers, daily schedule printouts, and static whiteboards that are used to display information. Many gains have been made to reduce the challenges facing outage coordinators; however; new opportunities can be realized by utilizing modern technological advancements in communication and information tools that can enhance the collective situational awareness of plant personnel leading to improved decision-making. Ongoing research as part of the Light Water Reactor Sustainability Program (LWRS) has been targeting NPP outage improvement. As part of this research, various applications of collaborative software have been demonstrated through pilot project utility partnerships. Collaboration software can be utilized as part of the larger concept of Computer-Supported Cooperative Work (CSCW). Collaborative software can be used for emergent issue resolution, Outage Control Center (OCC) displays, and schedule monitoring. Use of collaboration software enables outage staff and subject matter experts (SMEs) to view and update critical outage information from any location on site or off.
Download or read book Nuclear Power Plant Maintenance written by R. Jon Stouky and published by . This book was released on 1986 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress of Nuclear Safety for Symbiosis and Sustainability written by Hidekazu Yoshikawa and published by Springer Science & Business Media. This book was released on 2014-03-20 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces advanced methods of computational and information systems allowing readers to better understand the state-of-the-art design and implementation technology needed to maintain and enhance the safe operation of nuclear power plants. The subjects dealt with in the book are (i) Full digital instrumentation and control systems and human–machine interface technologies (ii) Risk monitoring methods for large and complex plants (iii) Condition monitors for plant components (iv) Virtual and augmented reality for nuclear power plants and (v) Software reliability verification and validation for nuclear power plants. The target readers of this book are Ph.D. students, researchers and engineers in the field of nuclear power engineering.
Download or read book PSA 93 written by American Nuclear Society and published by . This book was released on 1993 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Artificial Intelligence in Nuclear Power Plants written by Pentti J. Haapanen and published by . This book was released on 1990 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The PM Net Work written by and published by . This book was released on 1993 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions of the American Nuclear Society written by American Nuclear Society and published by . This book was released on 1993 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Implementation Strategies and Tools for Condition Based Maintenance at Nuclear Power Plants written by International Atomic Energy Agency and published by IAEA. This book was released on 2007 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a need to optimise the maintenance of nuclear power plants, both to improve reliability and increase competitiveness. The tendency is to move from preventative (time based) maintenance to one dependent on the condition of plant and its components. This publication collects and analyses proven condition based maintenance strategies and techniques in Member States as well as selected papers on maintenance optimisation.
