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Sample records for unscheduled engine outage

  1. Outage Log

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Queue Look Scheduled Outages Outage Log Science Gateway Status Login Node Status ... It is a historical record and may not be updated while a system event is in progress. ...

  2. NERSC Scheduled System Outages

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Scheduled System Outages NERSC Scheduled System Outages Last edited: 2016-04-29 11:35:00

  3. Improving Outage Performance: Outage Optimization Process

    SciTech Connect (OSTI)

    LaPlatney, Jere J.

    2006-07-01

    Planned outage performance is a key measure of how well an Nuclear Power Plant (NPP) is operated. Performance during planned outages strongly affects virtually all of a plant's performance metrics. In recognition of this fact, NPP operators worldwide have and continue to focus on improving their outage performance. The process of improving outage performance is commonly referred to as 'Outage Optimization' in the industry. This paper starts with a summary of the principles of Outage Optimization. It then provides an overview of a process in common use in the USA and elsewhere to manage the improvement of planned outages. The program described is comprehensive in that it involves managing improvement in both the Preparation and Execution phases of outage management. (author)

  4. Design Concepts for an Outage Control Center Information Dashboard

    SciTech Connect (OSTI)

    Hugo, Jacques Victor; St Germain, Shawn Walter; Thompson, Cheradan Jo; Whitesides, McKenzie Jo; Farris, Ronald Keith

    2015-12-01

    The nuclear industry, and the business world in general, is facing a rapidly increasing amount of data to be dealt with on a daily basis. In the last two decades, the steady improvement of data storage devices and means to create and collect data along the way influenced the manner in which we deal with information. Most data is still stored without filtering and refinement for later use. Many functions at a nuclear power plant generate vast amounts of data, with scheduled and unscheduled outages being a prime example of a source of some of the most complex data sets at the plant. To make matters worse, modern information and communications technology is making it possible to collect and store data faster than our ability to use it for making decisions. However, in most applications, especially outages, raw data has no value in itself; instead, managers, engineers and other specialists want to extract the information contained in it. The complexity and sheer volume of data could lead to information overload, resulting in getting lost in data that may be irrelevant to the task at hand, processed in an inappropriate way, or presented in an ineffective way. To prevent information overload, many data sources are ignored so production opportunities are lost because utilities lack the ability to deal with the enormous data volumes properly. Decision-makers are often confronted with large amounts of disparate, conflicting and dynamic information, which are available from multiple heterogeneous sources. Information and communication technologies alone will not solve this problem. Utilities need effective methods to exploit and use the hidden opportunities and knowledge residing in unexplored data resources. Superior performance before, during and after outages depends upon the right information being available at the right time to the right people. Acquisition of raw data is the easy part; instead, it is the ability to use advanced analytical, data processing and data

  5. Managing turbine-generator outages by computer

    SciTech Connect (OSTI)

    Reinhart, E.R. [Reinhart and Associates, Inc., Austin, TX (United States)

    1997-09-01

    This article describes software being developed to address the need for computerized planning and documentation programs that can help manage outages. Downsized power-utility companies and the growing demand for independent, competitive engineering and maintenance services have created a need for a computer-assisted planning and technical-direction program for turbine-generator outages. To meet this need, a software tool is now under development that can run on a desktop or laptop personal computer to assist utility personnel and technical directors in outage planning. Total Outage Planning Software (TOPS), which runs on Windows, takes advantage of the mass data storage available with compact-disc technology by archiving the complete outage documentation on CD. Previous outage records can then be indexed, searched, and viewed on a computer with the click of a mouse. Critical-path schedules, parts lists, parts order tracking, work instructions and procedures, custom data sheets, and progress reports can be generated by computer on-site during an outage.

  6. GUIDELINES FOR IMPLEMENTATION OF AN ADVANCED OUTAGE CONTROL CENTER TO IMPROVE OUTAGE COORDINATION, PROBLEM RESOLUTION, AND OUTAGE RISK MANAGEMENT

    SciTech Connect (OSTI)

    Germain, Shawn St; Farris, Ronald; Whaley, April M; Medema, Heather; Gertman, David

    2014-09-01

    This research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which is a research and development (R&D) program sponsored by Department of Energy (DOE) and performed in close collaboration with industry R&D programs that provide the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRS program serves to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. Managing NPP outages is a complex and difficult task due to the large number of maintenance and repair activities that are accomplished in a short period of time. During an outage, the outage control center (OCC) is the temporary command center for outage managers and provides several critical functions for the successful execution of the outage schedule. Essentially, the OCC functions to facilitate information inflow, assist outage management in processing information, and to facilitate the dissemination of information to stakeholders. Currently, outage management activities primarily rely on telephone communication, face to face reports of status, and periodic briefings in the OCC. It is a difficult task to maintain current the information related to outage progress and discovered conditions. Several advanced communication and collaboration technologies have shown promise for facilitating the information flow into, across, and out of the OCC. The use of these technologies will allow information to be shared electronically, providing greater amounts of real-time information to the decision makers and allowing OCC coordinators to meet with supporting staff remotely. Passively monitoring status electronically through advances in the areas of mobile worker technologies, computer-based procedures, and automated work packages will reduce the current reliance on manually

  7. Systems Outage Notification Policy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    the need for a maintenance event window no less than 24 hours in advance of the outage (emergency fixes). Users will be notified of regularly scheduled maintenance in advance, on ...

  8. Shopping for outage management systems

    SciTech Connect (OSTI)

    Chou, Y.C.; Konneker, L.K.; Watkins, T.R.

    1995-12-31

    Customer service is becoming increasingly important to electric utilities. Outage management is an important part of customer service. Good outage management means quickly responding to outages and keeping customers informed about outages. Each outage equals lost customer satisfaction and lost revenue. Outage management is increasingly important because of new competition among utilities for customers, pressure from regulators, and internal pressure to cut costs. The market has several existing software products for outage management. How does a utility judge whether these products satisfy their specific needs? Technology is changing rapidly to support outage management. Which technology is proven and cost-effective? The purpose of this paper is to outline the procedure for evaluating outage management systems, and to discuss the key features to look for. It also gives our opinion of the features that represent state of the art. This paper will not discuss specific products or list vendors names.

  9. Fermi 2: Independent safety assessment of refueling outage

    SciTech Connect (OSTI)

    Arora, H.O. [Detroit Edison, MI (United States)

    1994-12-31

    Industry experience and studies conducted by the U.S. Nuclear Regulatory Commission (NRC) have shown that plants are susceptible to a variety of events that can challenge safety during shutdowns. While these events have neither posed nor indicated an undue risk to public health and safety, they do serve to underscore the importance of effective outage planning and control. The NUMARC 91-06 guidelines suggest that proper planning and execution of outage activities can reduce the likelihood and consequences of events, which ultimately enhances safety during shutdown. The Fermi 2, Independent Safety Engineering Group (ISEG) is charged with the independent safety review of the refueling outage plan and its implementation. The ISEG is responsible for performing a detailed and critical review of proposed outage plan prior to the start of the outage, maintaining surveillance of the adequacy and consistency of the {open_quotes}defense-in-depth{close_quotes} provided during the outage, reviewing the outage plan changes for potential vulnerabilities that could affect safety functions, and investigating selected events that emerge during the course of the outage.

  10. Advanced Outage and Control Center: Strategies for Nuclear Plant Outage Work Status Capabilities

    SciTech Connect (OSTI)

    Gregory Weatherby

    2012-05-01

    The research effort is a part of the Light Water Reactor Sustainability (LWRS) Program. LWRS is a research and development program sponsored by the Department of Energy, performed in close collaboration with industry to provide the technical foundations for licensing and managing the long-term, safe and economical operation of current nuclear power plants. The LWRS Program serves to help the US nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The Outage Control Center (OCC) Pilot Project was directed at carrying out the applied research for development and pilot of technology designed to enhance safe outage and maintenance operations, improve human performance and reliability, increase overall operational efficiency, and improve plant status control. Plant outage management is a high priority concern for the nuclear industry from cost and safety perspectives. Unfortunately, many of the underlying technologies supporting outage control are the same as those used in the 1980’s. They depend heavily upon large teams of staff, multiple work and coordination locations, and manual administrative actions that require large amounts of paper. Previous work in human reliability analysis suggests that many repetitive tasks, including paper work tasks, may have a failure rate of 1.0E-3 or higher (Gertman, 1996). With between 10,000 and 45,000 subtasks being performed during an outage (Gomes, 1996), the opportunity for human error of some consequence is a realistic concern. Although a number of factors exist that can make these errors recoverable, reducing and effectively coordinating the sheer number of tasks to be performed, particularly those that are error prone, has the potential to enhance outage efficiency and safety. Additionally, outage management requires precise coordination of work groups that do not always share similar objectives. Outage

  11. Track NERSC Outages in Google Calendar

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Outages in Google Calendar Track NERSC Outages in Google Calendar March 22, 2013 by Jack Deslippe Outages are now available in Google calendar form. You can subscribe to this...

  12. OutageMapURL Phases Energy Services

    Open Energy Info (EERE)

    OutageMapURL Phases Energy Services County Electric Power Assn http outages county org A N Electric Coop Virginia AEP Generating Company https www aepaccount com zipr...

  13. outages | OpenEI Community

    Open Energy Info (EERE)

    outages Home Graham7781's picture Submitted by Graham7781(2017) Super contributor 29 October, 2012 - 14:46 East Coast Utilities prepare for Hurricane Sandy East Coast Hurricane...

  14. August 14, 2003 Power Outages … Announcement

    Broader source: Energy.gov (indexed) [DOE]

    Ellen P. Vancko evancko@nerc.com Power Outage Update 8162003 11 a.m. EDT The bulk ... will continue to experience rotating outages due to generating capacity availability. ...

  15. Development of Methodologies for Technology Deployment for Advanced Outage Control Centers that Improve Outage Coordination, Problem Resolution and Outage Risk Management

    SciTech Connect (OSTI)

    Shawn St. Germain; Ronald Farris; Heather Medeman

    2013-09-01

    This research effort is a part of the Light-Water Reactor Sustainability (LWRS) Program, which is a research and development (R&D) program sponsored by Department of Energy (DOE) and performed in close collaboration with industry R&D programs that provides the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRS program serves to help the U.S. nuclear industry adopt new technologies and engineering solutions that facilitate the continued safe operation of the plants and extension of the current operating licenses. The long term viability of existing nuclear power plants in the U.S. will depend upon maintaining high capacity factors, avoiding nuclear safety issues and reducing operating costs. The slow progress in the construction on new nuclear power plants has placed in increased importance on maintaining the output of the current fleet of nuclear power plants. Recently expanded natural gas production has placed increased economic pressure on nuclear power plants due to lower cost competition. Until recently, power uprate projects had steadily increased the total output of the U.S. nuclear fleet. Errors made during power plant upgrade projects have now removed three nuclear power plants from the U.S. fleet and economic considerations have caused the permanent shutdown of a fourth plant. Additionally, several utilities have cancelled power uprate projects citing economic concerns. For the past several years net electrical generation from U.S. nuclear power plants has been declining. One of few remaining areas where significant improvements in plant capacity factors can be made is in minimizing the duration of refueling outages. Managing nuclear power plant outages is a complex and difficult task. Due to the large number of complex tasks and the uncertainty that accompanies them, outage durations routinely exceed the planned duration. The ability to complete an outage on or near

  16. North American Electric Reliability Council Outage Announcement...

    Broader source: Energy.gov (indexed) [DOE]

    Recommendations Blackout 2003: Blackout Final Implementation Report U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations

  17. RESOLVED: Projectb filesystem outage July 9, 2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    filesystem outage July 9, 2012 July 9, 2012 The projectb filesystem had a hardware failure that potentially generated IO errors. The filesystem logs indicate that the...

  18. Assessment of Critical Events Corridors through Multivariate Cascading Outages Analysis

    SciTech Connect (OSTI)

    Makarov, Yuri V.; Samaan, Nader A.; Diao, Ruisheng; Kumbale, Murali; Chen, Yousu; Singh, Ruchi; Green, Irina; Morgan, Mark P.

    2011-10-17

    Massive blackouts of electrical power systems in North America over the past decade has focused increasing attention upon ways to identify and simulate network events that may potentially lead to widespread network collapse. This paper summarizes a method to simulate power-system vulnerability to cascading failures to a supplied set of initiating events synonymously termed as Extreme Events. The implemented simulation method is currently confined to simulating steady state power-system response to a set of extreme events. The outlined method of simulation is meant to augment and provide a new insight into bulk power transmission network planning that at present remains mainly confined to maintaining power system security for single and double component outages under a number of projected future network operating conditions. Although one of the aims of this paper is to demonstrate the feasibility of simulating network vulnerability to cascading outages, a more important goal has been to determine vulnerable parts of the network that may potentially be strengthened in practice so as to mitigate system susceptibility to cascading failures. This paper proposes to demonstrate a systematic approach to analyze extreme events and identify vulnerable system elements that may be contributing to cascading outages. The hypothesis of critical events corridors is proposed to represent repeating sequential outages that can occur in the system for multiple initiating events. The new concept helps to identify system reinforcements that planners could engineer in order to 'break' the critical events sequences and therefore lessen the likelihood of cascading outages. This hypothesis has been successfully validated with a California power system model.

  19. Property:OutagePhoneNumber | Open Energy Information

    Open Energy Info (EERE)

    OutagePhoneNumber Jump to: navigation, search Property Name OutagePhoneNumber Property Type String Description An outage hotline or 24-hour customer service number Note: uses...

  20. Property:OutageMapURL | Open Energy Information

    Open Energy Info (EERE)

    + Agralite Electric Coop + https:pyxis-oms.comOutageMapAgraliteOutageMap.html + Alfalfa Electric Coop, Inc + https:ebill.alfalfaelectric.comwoViewermapviewer.html?config...

  1. Homeowners: Respond to Power Outages | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Guidelines Homeowners: Respond to Power Outages Homeowners: Respond to Power Outages ... Learn more Certify your electrical systems-If your house sustains flood or wind damage ...

  2. A Review of Power Outages and Restoration Following the June...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    A Review of Power Outages and Restoration Following the June 2012 Derecho A Review of Power Outages and Restoration Following the June 2012 Derecho This report reviews power ...

  3. North American Electric Reliability Council Power Outage Update...

    Office of Environmental Management (EM)

    will continue to experience rotating outages due to generating capacity availability. North American Electric Reliability Council Power Outage Update (48.2 KB) More Documents & ...

  4. Track NERSC Outages in Google Calendar

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Track NERSC Outages in Google Calendar Track NERSC Outages in Google Calendar March 22, 2013 by Jack Deslippe Outages are now available in Google calendar form. You can subscribe to this calendar by following the link, http://goo.gl/A4n3k, and then clicking the add button on the bottom right. If you find any issues with the calendar content, please contact NERSC consultants by email at consult(at)nersc.gov. Subscribe via RSS Subscribe Browse by Date August 2016 June 2016 May 2016 April 2016

  5. Potomac River Project Outage Schedule Clarification | Department...

    Office of Environmental Management (EM)

    Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) evised plan for transmission outages for the 230 kV circuits ...

  6. Advanced Test Reactor outage risk assessment

    SciTech Connect (OSTI)

    Thatcher, T.A.; Atkinson, S.A.

    1997-12-31

    Beginning in 1997, risk assessment was performed for each Advanced Test Reactor (ATR) outage aiding the coordination of plant configuration and work activities (maintenance, construction projects, etc.) to minimize the risk of reactor fuel damage and to improve defense-in-depth. The risk assessment activities move beyond simply meeting Technical Safety Requirements to increase the awareness of risk sensitive configurations, to focus increased attention on the higher risk activities, and to seek cost-effective design or operational changes that reduce risk. A detailed probabilistic risk assessment (PRA) had been performed to assess the risk of fuel damage during shutdown operations including heavy load handling. This resulted in several design changes to improve safety; however, evaluation of individual outages had not been performed previously and many risk insights were not being utilized in outage planning. The shutdown PRA provided the necessary framework for assessing relative and absolute risk levels and assessing defense-in-depth. Guidelines were written identifying combinations of equipment outages to avoid. Screening criteria were developed for the selection of work activities to receive review. Tabulation of inherent and work-related initiating events and their relative risk level versus plant mode has aided identification of the risk level the scheduled work involves. Preoutage reviews are conducted and post-outage risk assessment is documented to summarize the positive and negative aspects of the outage with regard to risk. The risk for the outage is compared to the risk level that would result from optimal scheduling of the work to be performed and to baseline or average past performance.

  7. Outage project productivity improvement of TVA fossil

    SciTech Connect (OSTI)

    Picard, H.E.; Seay, C.R. Jr.

    1996-10-01

    Competition in the utility industry forces management to look closely at the cost effectiveness of power plant outage projects. At TVA Fossil and Hydro Power, innovative work measurement is proving effective as a project management tool to do more with less. Labor-hours to complete outage work scopes are reduced by some 20 to 30%, not by working harder or sacrificing safety, or quality, but by working and managing smarter. Fossil power plant outages and shutdowns are costly. They are labor-intensive construction projects, often with expanding work scope, and executed on a fast track. Outage work is inherently complex and dynamic, and often unpredictable. Many activities and tasks must be integrated, coordinated and completed safely and efficiently by multiple crafts and work groups. As a result, numerous productivity factors can influence the cost and schedule of outage completion. This provides owners, contractors and labor with unique opportunities for competitive advantage--by making radical changes in how they manage labor-hours and time.

  8. Contingency Analysis of Cascading Line Outage Events

    SciTech Connect (OSTI)

    Thomas L Baldwin; Magdy S Tawfik; Miles McQueen

    2011-03-01

    As the US power systems continue to increase in size and complexity, including the growth of smart grids, larger blackouts due to cascading outages become more likely. Grid congestion is often associated with a cascading collapse leading to a major blackout. Such a collapse is characterized by a self-sustaining sequence of line outages followed by a topology breakup of the network. This paper addresses the implementation and testing of a process for N-k contingency analysis and sequential cascading outage simulation in order to identify potential cascading modes. A modeling approach described in this paper offers a unique capability to identify initiating events that may lead to cascading outages. It predicts the development of cascading events by identifying and visualizing potential cascading tiers. The proposed approach was implemented using a 328-bus simplified SERC power system network. The results of the study indicate that initiating events and possible cascading chains may be identified, ranked and visualized. This approach may be used to improve the reliability of a transmission grid and reduce its vulnerability to cascading outages.

  9. Outage management and health physics issue, 2007

    SciTech Connect (OSTI)

    Agnihotri, Newal

    2007-05-15

    The focus of the May-June issue is on outage management and health physics. Major articles/reports in this issue include: India: a potential commercial opportunity, a U.S. Department of Commerce Report, by Joe Neuhoff and Justin Rathke; The changing climate for nuclear energy, by Skip Bowman, Nuclear Energy Insitute; Selecting protective clothing, by J. Mark Price, Southern California Edison; and Succssful refurbishment outage, by Sudesh K. Gambhir, Omaha Public Power District. Industry innovation articles in this issue are: Containment radiation monitoring spiking, by Michael W. Lantz and Robert Routolo, Arizona Public Service Company; Improved outage performance, by Michael Powell and Troy Wilfong, Arizona Public Service Company, Palo Verde Nuclear Generating Station; Stop repacking valves and achieve leak-free performance, by Kenneth Hart, PPL Susquehanna LLC; and Head assembly upgrade package, by Timothy Petit, Dominion Nuclear.

  10. Outage managment and health physics issue, 2008

    SciTech Connect (OSTI)

    Agnihotri, Newal

    2008-05-15

    The focus of the May-June issue is on outage management and health physics. Major articles include: Outage optimization initiatives, by George B. Beam, AREVA NP, Inc.; New plant based on excellent track records, by Jim Scarola, Progress Energy; Meeting customer needs and providing environmental benefits, by Peter S. Hastings, Duke Energy; Plants with 3-D design, by Jack A. Bailey, Tennessee Valley Authority; and Highest quality with exceptional planning, by Jason A. Walls, Duke Energy. Industry innovation articles include: Integrated exposure reduction plan, by Ed Wolfe, Exelon; Performance-based radiation worker training, by Joe Giuffre and Timothy Vriezerma, American Electric Power.

  11. RESOLVED: Projectb filesystem outage July 9, 2012

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RESOLVED: Projectb filesystem outage July 9, 2012 RESOLVED: Projectb filesystem outage July 9, 2012 July 9, 2012 The projectb filesystem had a hardware failure that potentially generated I/O errors. The filesystem logs indicate that the earliest abnormal event on the filesystem occurred at 9:19AM and the filesystem was taken down for maintenance at 10:42AM. The filesystem returned to service at 11:20AM. Jobs running on the cluster would not have been able to read from or write to the projectb

  12. Refinery Outages: First-Half 2016

    U.S. Energy Information Administration (EIA) Indexed Site

    Outages: First-Half 2016 March 2016 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Refinery Outages: First-Half 2016 i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States

  13. Benchmark Report on Key Outage Attributes: An Analysis of Outage Improvement Opportunities and Priorities

    SciTech Connect (OSTI)

    Germain, Shawn St.; Farris, Ronald

    2014-09-01

    Advanced Outage Control Center (AOCC), is a multi-year pilot project targeted at Nuclear Power Plant (NPP) outage improvement. The purpose of this pilot project is to improve management of NPP outages through the development of an AOCC that is specifically designed to maximize the usefulness of communication and collaboration technologies for outage coordination and problem resolution activities. This report documents the results of a benchmarking effort to evaluate the transferability of technologies demonstrated at Idaho National Laboratory and the primary pilot project partner, Palo Verde Nuclear Generating Station. The initial assumption for this pilot project was that NPPs generally do not take advantage of advanced technology to support outage management activities. Several researchers involved in this pilot project have commercial NPP experience and believed that very little technology has been applied towards outage communication and collaboration. To verify that the technology options researched and demonstrated through this pilot project would in fact have broad application for the US commercial nuclear fleet, and to look for additional outage management best practices, LWRS program researchers visited several additional nuclear facilities.

  14. Hopper compilers and DDT short outage next Wed, May 16

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    compilers and DDT short outage next Wed, May 16 Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 Due to a scheduled maintenance for the License Servers, most of...

  15. Application of Hybrid Geo-Spatially Granular Fragility Curves to Improve Power Outage Predictions

    SciTech Connect (OSTI)

    Fernandez, Steven J; Allen, Melissa R; Omitaomu, Olufemi A; Walker, Kimberly A

    2014-01-01

    Fragility curves depict the relationship between a weather variable (wind speed, gust speed, ice accumulation, precipitation rate) and the observed outages for a targeted infrastructure network. This paper describes an empirical study of the county by county distribution of power outages and one minute weather variables during Hurricane Irene with the objective of comparing 1) as built fragility curves (statistical approach) to engineering as designed (bottom up) fragility curves for skill in forecasting outages during future hurricanes; 2) county specific fragility curves to find examples of significant deviation from average behavior; and 3) the engineering practices of outlier counties to suggest future engineering studies of robustness. Outages in more than 90% of the impacted counties could be anticipated through an average or generic fragility curve. The remaining counties could be identified and handled as exceptions through geographic data sets. The counties with increased or decreased robustness were characterized by terrain more or less susceptible to persistent flooding in areas where above ground poles located their foundations. Land use characteristics of the area served by the power distribution system can suggest trends in the as built power grid vulnerabilities to extreme weather events that would be subjects for site specific studies.

  16. Outage management and health physics issue, 2009

    SciTech Connect (OSTI)

    Agnihotri, Newal

    2009-05-15

    The focus of the May-June issue is on outage management and health physics. Major articles include the following: Planning and scheduling to minimize refueling outage, by Pat McKenna, AmerenUE; Prioritizing safety, quality and schedule, by Tom Sharkey, Dominion; Benchmarking to high standards, by Margie Jepson, Energy Nuclear; Benchmarking against U.S. standards, by Magnox North, United Kingdom; Enabling suppliers for new build activity, by Marcus Harrington, GE Hitachi Nuclear Energy; Identifying, cultivating and qualifying suppliers, by Thomas E. Silva, AREVA NP; Creating new U.S. jobs, by Francois Martineau, Areva NP. Industry innovation articles include: MSL Acoustic source load reduction, by Amir Shahkarami, Exelon Nuclear; Dual Methodology NDE of CRDM nozzles, by Michael Stark, Dominion Nuclear; and Electronic circuit board testing, by James Amundsen, FirstEnergy Nuclear Operating Company. The plant profile article is titled The future is now, by Julia Milstead, Progress Energy Service Company, LLC.

  17. Outage management and health physics issue, 2006

    SciTech Connect (OSTI)

    Agnihotri, Newal

    2006-05-15

    The focus of the May-June issue is on outage management and health physics. Major articles/reports in this issue include: A design with experience for the U.S., by Michael J. Wallace, Constellation Generation Group; Hope to be among the first, by Randy Hutchinson, Entergy Nuclear; Plans to file COLs in 2008, by Garry Miller, Progress Energy; Evolution of ICRP's recommendations, by Lars-Erik Holm, ICRP; European network on education and training in radiological protection, by Michele Coeck, SCK-CEN, Belgium; Outage managment: an important tool for improving nuclear power plant performance, by Thomas Mazour and Jiri Mandula, IAEA, Austria; and Plant profile: Exploring new paths to excellence, by Anne Thomas, Exelon Nuclear.

  18. How individual traces and interactive timelines could support outage execution - Toward an outage historian concept

    SciTech Connect (OSTI)

    Parfouru, S.; De-Beler, N.

    2012-07-01

    In the context of a project that is designing innovative ICT-based solutions for the organizational concept of outage management, we focus on the informational process of the OCR (Outage Control Room) underlying the execution of the outages. Informational process are based on structured and unstructured documents that have a key role in the collaborative processes and management of the outage. We especially track the structured and unstructured documents, electronically or not, from creation to sharing. Our analysis allows us to consider that the individual traces produced by an individual participant with a specific role could be multi-purpose and support sharing between participants without creating duplication of work. The ultimate goal is to be able to generate an outage historian, that is not just focused on highly structured information, which could be useful to improve the continuity of information between participants. We study the implementation of this approach through web technologies and social media tools to address this issue. We also investigate the issue of data access through interactive visualization timelines coupled with other modality's to assist users in the navigation and exploration of the proposed historian. (authors)

  19. Application of Standard Maintenance Windows in PHWR Outage

    SciTech Connect (OSTI)

    Fuming Jiang

    2006-07-01

    The concept of Standard Maintenance Windows has been widely used in the planned outage of light water reactor in the world. However, due to the specific feature of Pressurized Heavy Water Reactor (PHWR), it has not come to a consensus for the PHWR owners to adopt Standard Maintenance Windows for planned outage aiming at the optimization of outage duration. Third Qinshan Nuclear Power Company (TQNPC), with their experience gained in the previous outages and with reference to other PHWR power plants, has identified a set of Standard Maintenance Windows for planned outage. It can be applied to similar PHWR plants and with a few windows that are specific to Qinshan Phase III NPP. The use of these Standard Maintenance Windows in planned outage has been proved to be effective in control shutdown nuclear safety, minimize the unavailability of safety system, improve the efficient utilization of outage duration, and improved the flexibility of outage schedule in the case of emergency issue, which forced the revision of outage schedule. It has also formed a solid foundation for benchmarking. The identification of Standard Maintenance Windows and its application will be discussed with relevant cases for the common improvement of outage duration. (author)

  20. Plant maintenance and outage management issue, 2005

    SciTech Connect (OSTI)

    Agnihotri, Newal (ed.)

    2005-01-15

    The focus of the January-February issue is on plant maintenance and outage managment. Major articles/reports in this issue include: Dawn of a new era, by Joe Colvin, Nuclear Energy Institute (NEI); Plant profile: Beloyarsk NPP, Russia, by Nikolai Oshkanov, Beloyarsk NPP, Russia; Improving economic performance, by R. Spiegelberg-Planner, John De Mella, and Marius Condu, IAEA; A model for improving performance, by Pet Karns, MRO Software; ASME codes and standards, by Shannon Burke, ASME International; and, Refurbishment programs, by Craig S. Irish, Nuclear Logistics, Inc.

  1. Outlook for Refinery Outages and Available Refinery Capacity...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of gasoline and distillate, and to include a more detailed consideration of the impact of unexpected outages on product supplies. This report reviews the potential...

  2. Outlook for Refinery Outages and Available Refinery Capacity...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    level of refinery outages outlined in this report. This report does not consider the impacts of refined product logistics and distribution, which could affect the movement of...

  3. Homeowners: Respond to Power Outages | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Power Outages After a disaster, electric utilities and government officials will first work to restore power to critical infrastructure like power plants and transmission lines, ...

  4. A Review of Power Outages and Restoration Following the June...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    August 2012 A Review of Power Outages and Restoration Following the June 2012 Derecho Infrastructure Security and Energy Restoration Office of Electricity Delivery and Energy ...

  5. Development of Improved Graphical Displays for an Advanced Outage Control Center, Employing Human Factors Principles for Outage Schedule Management

    SciTech Connect (OSTI)

    St Germain, Shawn Walter; Farris, Ronald Keith; Thomas, Kenneth David

    2015-09-01

    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

  6. A stochastic model for the measurement of electricity outage costs

    SciTech Connect (OSTI)

    Grosfeld-Nir, A.; Tishler, A. (Tel Aviv Univ. (Israel))

    1993-01-01

    The measurement of customer outage costs has recently become an important subject of research for electric utilities. This paper uses a stochastic dynamic model as the starting point in developing a market-based method for the evaluation of outage costs. Specifically, the model postulates that once an electricity outage occurs, all production activity stops. Full production is resumed once the electricity outage is over. This process repeats itself indefinitely. The business customer maximizes his expected discounted profits (the expected value of the firm), taking into account his limited ability to respond to repeated random electricity outages. The model is applied to 11 industrial branches in Israel. The estimates exhibit a large variation across branches. 34 refs., 3 tabs.

  7. Analysis of scrams and forced outages at boiling water reactors

    SciTech Connect (OSTI)

    Earle, R. T.; Sullivan, W. P.; Miller, K. R.; Schwegman, W. J.

    1980-07-01

    This report documents the results of a study of scrams and forced outages at General Electric Boiling Water Reactors (BWRs) operating in the United States. This study was conducted for Sandia Laboratories under a Light Water Reactor Safety Program which it manages for the United States Department of Energy. Operating plant data were used to identify the causes of scrams and forced outages. Causes of scrams and forced outages have been summarized as a function of operating plant and plant age and also ranked according to the number of events per year, outage time per year, and outage time per event. From this ranking, identified potential improvement opportunities were evaluated to determine the associated benefits and impact on plant availability.

  8. Technology Integration Initiative In Support of Outage Management

    SciTech Connect (OSTI)

    Gregory Weatherby; David Gertman

    2012-07-01

    Plant outage management is a high priority concern for the nuclear industry from cost and safety perspectives. Often, command and control during outages is maintained in the outage control center where many of the underlying technologies supporting outage control are the same as those used in the 1980’s. This research reports on the use of advanced integrating software technologies and hand held mobile devices as a means by which to reduce cycle time, improve accuracy, and enhance transparency among outage team members. This paper reports on the first phase of research supported by the DOE Light Water Reactor Sustainability (LWRS) Program that is performed in close collaboration with industry to examine the introduction of newly available technology allowing for safe and efficient outage performance. It is thought that this research will result in: improved resource management among various plant stakeholder groups, reduced paper work, and enhanced overall situation awareness for the outage control center management team. A description of field data collection methods, including personnel interview data, success factors, end-user evaluation and integration of hand held devices in achieving an integrated design are also evaluated. Finally, the necessity of obtaining operations cooperation support in field studies and technology evaluation is acknowledged.

  9. U.S. - Canada Power System Outage Task Force: Final Report on...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations U.S. - Canada Power System Outage Task Force: Final Report on the ...

  10. Preparing for a Power Outage | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of September, FEMA's website Ready.gov will focus on a different emergency scenario and share tips on how to be prepared in case of floods, wildfires, hurricanes or power outages. ...

  11. SAMPLE RESULTS FROM MCU SOLIDS OUTAGE

    SciTech Connect (OSTI)

    Peters, T.; Washington, A.; Oji, L.; Coleman, C.; Poirier, M.

    2014-09-22

    Savannah River National Laboratory (SRNL) has received several solid and liquid samples from MCU in an effort to understand and recover from the system outage starting on April 6, 2014. SRNL concludes that the presence of solids in the Salt Solution Feed Tank (SSFT) is the likely root cause for the outage, based upon the following discoveries ? A solids sample from the extraction contactor #1 proved to be mostly sodium oxalate ? A solids sample from the scrub contactor#1 proved to be mostly sodium oxalate ? A solids sample from the Salt Solution Feed Tank (SSFT) proved to be mostly sodium oxalate ? An archived sample from Tank 49H taken last year was shown to contain a fine precipitate of sodium oxalate ? A solids sample from the extraction contactor #1 drain pipe from extraction contactor#1 proved to be mostly sodium aluminosilicate ? A liquid sample from the SSFT was shown to have elevated levels of oxalate anion compared to the expected concentration in the feed Visual inspection of the SSFT indicated the presence of precipitated or transferred solids, which were likely also in the Salt Solution Receipt Tank (SSRT). The presence of the solids coupled with agitation performed to maintain feed temperature resulted in oxalate solids migration through the MCU system and caused hydraulic issues that resulted in unplanned phase carryover from the extraction into the scrub, and ultimately the strip contactors. Not only did this carryover result in the Strip Effluent (SE) being pushed out of waste acceptance specification, but it resulted in the deposition of solids into several of the contactors. At the same time, extensive deposits of aluminosilicates were found in the drain tube in the extraction contactor #1. However it is not known at this time how the aluminosilicate solids are related to the oxalate solids. The solids were successfully cleaned out of the MCU system. However, future consideration must be given to the exclusion of oxalate solids into the MCU system

  12. Overview of Common Mode Outages in Power Systems

    SciTech Connect (OSTI)

    Papic, Milorad; Awodele , Kehinde; Billinton, Roy; Dent, Chris; Eager, Dan; Hamoud, Gomaa; Jirutitijaroen, Panida; Kumbale, Murali; Mitra, Joydeep; Samaan, Nader A.; Schneider, Alex; Singh, Chanan

    2012-11-10

    This paper is a result of ongoing activity carried out by Probability Applications for Common Mode Events (PACME) Task Force under the Reliability Risk and Probability Applications (RRPA) Subcommittee. The paper is intended to constitute a valid source of information and references about dealing with common-mode outages in power systems reliability analysis. This effort involves reviewing published literature and presenting state-of-the-art research and practical applications in the area of common-mode outages. Evaluation of available outage statistics show that there is a definite need for collective effort from academia and industry to not only recommended procedures for data collection and monitoring but also to provide appropriate mathematical models to assess such events.

  13. Hopper compilers and DDT short outage next Wed, May 16

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    compilers and DDT short outage next Wed, May 16 Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 Due to a scheduled maintenance for the License Servers, most of the compilers (except GNU) and the DDT debugger on Hopper will not be available from 10:30 am to 12:30 pm on Wednesday, May 16. If there are any questions or concerns, please contact "consult at nersc dot gov". Subscribe via RSS Subscribe Browse by Date February 2013 September 2012 August 2012 May 2012 April

  14. Hopper scheduled maintenance tomorrow (Sept 19) and /project outage

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    scheduled maintenance tomorrow (Sept 19) and /project outage Hopper scheduled maintenance tomorrow (Sept 19) and /project outage September 18, 2012 by Helen He There will be a scheduled hardware and software maintenance for Hopper next Wednesday, Sept 19, from 6:30 am to midnight Pacific time. Please plan your work accordingly and check the NERSC Message of the Day (MOTD) for status update: http://www.nersc.gov/live-status/motd/. The /project file system (also known as /global/project) will be

  15. Notification of Planned 230kV Outage at Potomac River Generating...

    Energy Savers [EERE]

    Subject: Notification of Planned 230kV Outage at Potomac River Generating Station To ... The next planned outage on 23106 high voltage circuit between xxxxxxx xx xxxx and ...

  16. A framework and review of customer outage costs: Integration and analysis of electric utility outage cost surveys

    SciTech Connect (OSTI)

    Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph

    2003-11-01

    A clear understanding of the monetary value that customers place on reliability and the factors that give rise to higher and lower values is an essential tool in determining investment in the grid. The recent National Transmission Grid Study recognizes the need for this information as one of growing importance for both public and private decision makers. In response, the U.S. Department of Energy has undertaken this study, as a first step toward addressing the current absence of consistent data needed to support better estimates of the economic value of electricity reliability. Twenty-four studies, conducted by eight electric utilities between 1989 and 2002 representing residential and commercial/industrial (small, medium and large) customer groups, were chosen for analysis. The studies cover virtually all of the Southeast, most of the western United States, including California, rural Washington and Oregon, and the Midwest south and east of Chicago. All variables were standardized to a consistent metric and dollar amounts were adjusted to the 2002 CPI. The data were then incorporated into a meta-database in which each outage scenario (e.g., the lost of electric service for one hour on a weekday summer afternoon) is treated as an independent case or record both to permit comparisons between outage characteristics and to increase the statistical power of analysis results. Unadjusted average outage costs and Tobit models that estimate customer damage functions are presented. The customer damage functions express customer outage costs for a given outage scenario and customer class as a function of location, time of day, consumption, and business type. One can use the damage functions to calculate outage costs for specific customer types. For example, using the customer damage functions, the cost experienced by an ''average'' customer resulting from a 1 hour summer afternoon outage is estimated to be approximately $3 for a residential customer, $1,200 for small

  17. Risk Assessment of Cascading Outages: Methodologies and Challenges

    SciTech Connect (OSTI)

    Vaiman, Marianna; Bell, Keith; Chen, Yousu; Chowdhury, Badrul; Dobson, Ian; Hines, Paul; Papic, Milorad; Miller, Stephen; Zhang, Pei

    2012-05-31

    Abstract- This paper is a result of ongoing activity carried out by Understanding, Prediction, Mitigation and Restoration of Cascading Failures Task Force under IEEE Computer Analytical Methods Subcommittee (CAMS). The task force's previous papers are focused on general aspects of cascading outages such as understanding, prediction, prevention and restoration from cascading failures. This is the first of two new papers, which extend this previous work to summarize the state of the art in cascading failure risk analysis methodologies and modeling tools. This paper is intended to be a reference document to summarize the state of the art in the methodologies for performing risk assessment of cascading outages caused by some initiating event(s). A risk assessment should cover the entire potential chain of cascades starting with the initiating event(s) and ending with some final condition(s). However, this is a difficult task and heuristic approaches and approximations have been suggested. This paper discusses different approaches to this and suggests directions for future development of methodologies. The second paper summarizes the state of the art in modeling tools for risk assessment of cascading outages.

  18. Survey of tools for risk assessment of cascading outages

    SciTech Connect (OSTI)

    Papic, Milorad; Bell, Keith; Chen, Yousu; Dobson, Ian; Fonte, Louis; Haq, Enamul; Hines, Paul; Kirschen, Daniel; Luo, Xiaochuan; Miller, Stephen; Samaan, Nader A.; Vaiman, Marianna; Varghese, Matthew; Zhang, Pei

    2011-10-01

    Abstract-This paper is a result of ongoing activity carried out by Understanding, Prediction, Mitigation and Restoration of Cascading Failures Task Force under IEEE Computer Analytical Methods Subcommittee (CAMS). The task force's previous papers [1, 2] are focused on general aspects of cascading outages such as understanding, prediction, prevention and restoration from cascading failures. This is the second of two new papers, which extend this previous work to summarize the state of the art in cascading failure risk analysis methodologies and modeling tools. The first paper reviews the state of the art in methodologies for performing risk assessment of potential cascading outages [3]. This paper describes the state of the art in cascading failure modeling tools, documenting the view of experts representing utilities, universities and consulting companies. The paper is intended to constitute a valid source of information and references about presently available tools that deal with prediction of cascading failure events. This effort involves reviewing published literature and other documentation from vendors, universities and research institutions. The assessment of cascading outages risk evaluation is in continuous evolution. Investigations to gain even better understanding and identification of cascading events are the subject of several research programs underway aimed at solving the complexity of these events that electrical utilities face today. Assessing the risk of cascading failure events in planning and operation for power transmission systems require adequate mathematical tools/software.

  19. Study, outlines why outages go long, short, or on-time

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    A recent report by a nuclear industry professional, based on a survey of outage managers at US nuclear power plants, declares that [open quotes]preplanned outage schedules appear to be grossly inaccurate, and the outage management planners and schedulers do not have a grasp of the requirements and/or the resources needed to complete the actual activities on schedule.[close quotes] It declares that [open quotes]the scheduled duration of a planned outage must be realistic.[close quotes] The study identifies personnel, planning and scheduling, and equipment/hardware as [open quotes]the primary reasons why refueling outages and outage activities finished ahead of, right on, or behind schedule.[close quotes

  20. Risk Assessment of Cascading Outages: Part I - Overview of Methodologies

    SciTech Connect (OSTI)

    Vaiman, Marianna; Bell, Keith; Chen, Yousu; Chowdhury, Badrul; Dobson, Ian; Hines, Paul; Papic, Milorad; Miller, Stephen; Zhang, Pei

    2011-07-31

    This paper is a result of ongoing activity carried out by Understanding, Prediction, Mitigation and Restoration of Cascading Failures Task Force under IEEE Computer Analytical Methods Subcommittee (CAMS). The task force's previous papers are focused on general aspects of cascading outages such as understanding, prediction, prevention and restoration from cascading failures. This is the first of two new papers, which will extend this previous work to summarize the state of the art in cascading failure risk analysis methodologies and modeling tools. This paper is intended to be a reference document to summarize the state of the art in the methodologies for performing risk assessment of cascading outages caused by some initiating event(s). A risk assessment should cover the entire potential chain of cascades starting with the initiating event(s) and ending with some final condition(s). However, this is a difficult task and heuristic approaches and approximations have been suggested. This paper discusses diffeent approaches to this and suggests directions for future development of methodologies.

  1. A Study of Outage Management Practices at Selected U.S. Nuclear Plants

    SciTech Connect (OSTI)

    Lin, James C.

    2002-07-01

    This paper presents insights gained from a study of the outage management practices at a number of U.S. nuclear plants. The objective of the study was to conduct an in-depth review of the current practices of outage management at these selected plants and identify important factors that have contributed to the recent success of their outage performance. Two BWR-4, three BWR-6, and two 3-loop Westinghouse PWR plants were selected for this survey. The results of this study can be used to formulate outage improvement efforts for nuclear plants in other countries. (author)

  2. Further Notice of 230kV Circuit Planned Outages | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Further Notice of 230kV Circuit Planned Outages Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Order No. 202-05-03: Pursuant 10 the United States Department of Energy "DOE") Order No. 102-05-3, issued December 20, 2005 ("DOE Potomac River Order''), Pepco hereby files this Further Notice Of 230kV Circuit Planned Outages serving the Potomac River Substation, and through thaI station, the District of Columbia. Further Notice of 230kV Circuit Planned Outages

  3. Status of U.S. Nuclear Outages - U.S. Energy Information Administratio...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    < NUCLEAR & URANIUM Data Status of U.S. Nuclear Outages Download Download Link to: Nuclear Regulatory Commission's Power Reactor Status Report

  4. Procedures and equipment for shortening refueling outages in Babcock and Wilcox PWRs. Final report

    SciTech Connect (OSTI)

    Baker, H.A.; Carr, C.W.

    1985-04-01

    New refueling equipment and procedures - plus a software package bid specification for outage management - can reduce refueling outages in Babcock and Wilcox PWRs. At Duke Power Company's Oconee nuclear station, a single modification in the fuel-handling system cut 5 days off the refueling schedule.

  5. Quantitative evaluation of savings in outage costs by using emergency actions strategy

    SciTech Connect (OSTI)

    Akhtar, A.; Asuhaimi, A.; Shaibon, H. [Univ. Teknologi Malaysia, Johor Bharu (Malaysia); Lo, K.L. [Univ. of Strathclyde, Glasgow (United Kingdom)

    1995-12-31

    This paper presents the results of a study carried out to assess the savings in consumer outage costs that can be accrued as a result of implementing Emergency Actions Strategy. The use of Emergency Actions Strategy plays a significant role in curtailing the consumer outage costs ensuing from unreliable electric service. In order to calculate the savings in outage costs, the probabilistic framework of the frequency and duration method has been used in conjunction with emergency actions. At first, the outage costs of various consumer sectors are estimated without considering the emergency actions. Secondly, the consumer outage costs are calculated by combining the frequency and duration method, and unserved energy with the emergency actions invoked. The results of the savings in consumer outage costs that can be accrued by utilizing Emergency Actions Strategy are presented for a synthetic system. The results of the study show that substantial savings in consumer outage costs are obtained by devising and implementing emergency actions strategy in situations of capacity outages. The results are of particular relevance and utility to the underdeveloped and developing countries where capacity shortages occur quite frequently. These results also suggest the importance of emergency actions strategy for electric utilities in reducing the consumer economic losses arising from unreliable electric service.

  6. A Review of Power Outages and Restoration Following the June 2012 Derecho

    Broader source: Energy.gov [DOE]

    The Office of Electricity Delivery and Energy Reliability has released a report that reviews power outages and restoration efforts following the June 29, 2012 Derecho and compares them to outages and restoration efforts following other spring and summer storms in the Ohio Valley and Mid-Atlantic regions.

  7. Use of collaboration software to improve nuclear power plant outage management

    SciTech Connect (OSTI)

    Germain, Shawn

    2015-02-01

    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.

  8. Smart Grid Week: Hurricane Season and the Department’s Efforts to Make the Grid More Resilient to Power Outages

    Broader source: Energy.gov [DOE]

    Next up in our Smart Grid Week series -- improving electric grid technologies to adequately prepare for emergencies with power outages.

  9. Notice of Unplanned Outage at the Mirant Potomac River Plant | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Unplanned Outage at the Mirant Potomac River Plant Notice of Unplanned Outage at the Mirant Potomac River Plant Docket No. EO-05-01. Order No. 202-05-03: Pursuant to the United States Department of Energy ("DOE") Order No_ 202-05-3, issued December 20, 2005 ("DOE Potomac River Order"), Pepco hereby files this notice of an unplanned outage of one of the 230kV circuits serving the Potomac River Substation, and through that station, the District of Columbia. Notice

  10. Notification of Planned 230kV Outage at Potomac River Generating Station |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy The next planned outage on xxxxx high voltage circuit between Palmers Corner Substation and the Potomac River Generating Station is scheduled for Sunday, June 3, 2007 and will begin at 4:00 AM with a scheduled return date of Saturday, June 9, 2007 at 2:00 PM. Notification of Planned 230kV Outage at Potomac River Generating Station (34.76 KB) More Documents & Publications Notification of Planned 230kV Outage at Potomac River Generating Station Notification of Planned

  11. Plant Outage Time Savings Provided by Subcritical Physics Testing at Vogtle Unit 2

    SciTech Connect (OSTI)

    Cupp, Philip [Southern Nuclear Company (United States); Heibel, M.D. [Westinghouse Electric Company, LLC (United States)

    2006-07-01

    The most recent core reload design verification physics testing done at Southern Nuclear Company's (SNC) Vogtle Unit 2, performed prior to initial power operations in operating cycle 12, was successfully completed while the reactor was at least 1% {delta}K/K subcritical. The testing program used was the first application of the Subcritical Physics Testing (SPT) program developed by the Westinghouse Electric Company LLC. The SPT program centers on the application of the Westinghouse Subcritical Rod Worth Measurement (SRWM) methodology that was developed in cooperation with the Vogtle Reactor Engineering staff. The SRWM methodology received U. S. Nuclear Regulatory Commission (NRC) approval in August of 2005. The first application of the SPT program occurred at Vogtle Unit 2 in October of 2005. The results of the core design verification measurements obtained during the SPT program demonstrated excellent agreement with prediction, demonstrating that the predicted core characteristics were in excellent agreement with the actual operating characteristics of the core. This paper presents an overview of the SPT Program used at Vogtle Unit 2 during operating cycle 12, and a discussion of the critical path outage time savings the SPT program is capable of providing. (authors)

  12. Hoboken Hopes To Reduce Power Outages With New 'Smart Grid' System

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... HOBOKEN, N.J. (CBSNewYork) - Officials are hoping to reduce power outages during future storms in Hoboken by designing a "smart grid" system using military-inspired technology. The ...

  13. Notification of Planned 230kV Outage at Potomac River Generating Station

    Office of Energy Efficiency and Renewable Energy (EERE)

    Docket No. EO-05-01. The next planned outage on xxxxx high voltage circuit between xxxxx and xxxxx is tentatively scheduled for Saturday May 19, 2007 and will begin at 4:00 AM with a scheduled...

  14. Notification of Planned 230kV Outage at Potomac River Generating...

    Office of Environmental Management (EM)

    Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) evised plan for transmission outages for the 230 kV circuits ...

  15. Notification of Planned 230kV Outage at Potomac River Generating...

    Energy Savers [EERE]

    Re: Potomac River Generating Station Department of Energy Case No. EO-05-01: Advanced Notice of Power Outages. Special Environmental Analysis For Actions Taken under U.S. ...

  16. Pepco Update on Current Construction Work and Mirant Generation Needs for Pepco's Planned June Line Outage

    Office of Energy Efficiency and Renewable Energy (EERE)

    Docket No. EO-05-01.  Pepco needs the following to occur to provide necessary reliability to the central D.C. area during this scheduled June outage in order to complete installation of new...

  17. U.S. - Canada Power System Outage Task Force: Final Report on the

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Implementation of Task Force Recommendations | Department of Energy - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations On August 14, 2003, the largest power blackout in North American history affected an area with an estimated 50 million people and 61,800 megawatts (MW) of electric load in the states of Ohio, Michigan,

  18. Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Includes Engineering Standards Manual, Master Specifications Index, Drafting Manual, Design Guides, and more. IHS Standards Expert login information Collections include ANSI,...

  19. OTRA-THS MAC to reduce Power Outage Data Collection Latency in a smart meter network

    SciTech Connect (OSTI)

    Garlapati, Shravan K; Kuruganti, Phani Teja; Buehrer, Richard M; Reed, Jeffrey H

    2014-01-01

    The deployment of advanced metering infrastructure by the electric utilities poses unique communication challenges, particularly as the number of meters per aggregator increases. During a power outage, a smart meter tries to report it instantaneously to the electric utility. In a densely populated residential/industrial locality, it is possible that a large number of smart meters simultaneously try to get access to the communication network to report the power outage. If the number of smart meters is very high of the order of tens of thousands (metropolitan areas), the power outage data flooding can lead to Random Access CHannel (RACH) congestion. Several utilities are considering the use of cellular network for smart meter communications. In 3G/4G cellular networks, RACH congestion not only leads to collisions, retransmissions and increased RACH delays, but also has the potential to disrupt the dedicated traffic flow by increasing the interference levels (3G CDMA). In order to overcome this problem, in this paper we propose a Time Hierarchical Scheme (THS) that reduces the intensity of power outage data flooding and power outage reporting delay by 6/7th, and 17/18th when compared to their respective values without THS. Also, we propose an Optimum Transmission Rate Adaptive (OTRA) MAC to optimize the latency in power outage data collection. The analysis and simulation results presented in this paper show that both the OTRA and THS features of the proposed MAC results in a Power Outage Data Collection Latency (PODCL) that is 1/10th of the 4G LTE PODCL.

  20. Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineering Engineering National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Engineering New type of laser to help defeat threats to U.S. Navy. Los Alamos National Laboratory successfully tested a new high-current electron injector, a device that can be scaled up to produce the electrons needed to build a higher-power free-electron laser

  1. engineering

    National Nuclear Security Administration (NNSA)

    an award last month for his 3D printing innovation. It could revolutionize additive manufacturing.

    Lawrence Livermore Lab engineer Bryan Moran wasn't necessarily...

  2. Status Report on the Development of Micro-Scheduling Software for the Advanced Outage Control Center Project

    SciTech Connect (OSTI)

    Shawn St. Germain; Kenneth Thomas; Ronald Farris; Jeffrey Joe

    2014-09-01

    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

  3. Microsoft Word - NERSC_Results.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... Again, the scheduled software outage is the dominant source of downtime 1 . It is worth noting that power outages are comparable to the unscheduled software and hardware system ...

  4. Evaluation of the marginal outage costs in interconnected and composite power systems

    SciTech Connect (OSTI)

    Ghajar, R.; Billinton, R.

    1995-05-01

    The structure of electric utilities is undergoing dramatic changes as new and expanded service options are added. The concepts of unbundling the electric service and offering customers a range of new services that more closely track actual costs are expanding the options open to customers. Spot pricing provides the economic structure for many of these new service options. An important component of spot prices is the marginal outage cost incurred by customers due to an incremental change in load. This paper presents a formalized approach of calculating the marginal outage cost in interconnected generating systems and composite generation and transmission systems using quantitative reliability techniques. The effects of selected pertinent factors on the marginal outage cost in composite systems are also presented. The proposed methods are illustrated by application to the IEEE-Reliability Test System (IEEE-RTS).

  5. Nuclear Safety Risk Management in Refueling Outage of Qinshan Nuclear Power Plant

    SciTech Connect (OSTI)

    Meijing Wu; Guozhang Shen

    2006-07-01

    The NPP is used to planning maintenance, in-service inspection, surveillance test, fuel handling and design modification in the refueling outage; the operator response capability will be reduced plus some of the plant systems out of service or loss of power at this time. Based on 8 times refueling outage experiences of the Qinshan NPP, this article provide some good practice and lesson learned for the nuclear safety risk management focus at four safety function areas of Residual Heat Removal Capability, Inventory Control, Power availability and Reactivity control. (authors)

  6. Pepco Update on Current Construction Work and Mirant Generation Needs for Pepco's Planned June Line Outage

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    May 25, 2007 Kevin Kolevar Director of the Office of Electricity Deliverability and Energy Reliability Department of Energy 1000 Independence Ave., SW Washington, DC 20585 Dear Mr. Kolevar, DOE has requested that Pepco provide an update on the current work to install two new 230 kilovolt circuits into Potomac River substation and to evaluate the need for generation from the Potomac River plant to support the anticipated line outage during June, 2007. An outage on one of the 230 kV circuits is

  7. ENGINEERING

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ENGINEERING the Future of ENERGY Regional University Alliance National Energy Technology Laboratory Office of Research and Development The Future of Energy The time to redraw America's energy blueprint is now. The challenges we face today are the most critical in decades-from the impact of energy use on global ecosystems to the difficulties of efficiently harnessing our natural resources. Because energy is fundamental to human welfare, we must develop sustainable systems that make clean,

  8. Blackout 2003: Energy Secretary Bodman and Minister of Natural Resources for Canada Lunn Release the 2003 Power Outage Final Report, October 3, 2006

    Broader source: Energy.gov [DOE]

    Energy Secretary Bodman and Minister of Natural Resources for Canada Lunn Release the 2003 Power Outage Final Report. In accordance with the mandate of the U.S.-Canada Power Outage Task Force, the...

  9. Method for estimating power outages and restoration during natural and man-made events

    DOE Patents [OSTI]

    Omitaomu, Olufemi A.; Fernandez, Steven J.

    2016-01-05

    A method of modeling electric supply and demand with a data processor in combination with a recordable medium, and for estimating spatial distribution of electric power outages and affected populations. A geographic area is divided into cells to form a matrix. Within the matrix, supply cells are identified as containing electric substations and demand cells are identified as including electricity customers. Demand cells of the matrix are associated with the supply cells as a function of the capacity of each of the supply cells and the proximity and/or electricity demand of each of the demand cells. The method includes estimating a power outage by applying disaster event prediction information to the matrix, and estimating power restoration using the supply and demand cell information of the matrix and standardized and historical restoration information.

  10. Recent Performance of and Plasma Outage Studies with the SNS H- Source

    SciTech Connect (OSTI)

    Stockli, Martin P; Han, Baoxi; Murray Jr, S N; Pennisi, Terry R; Piller, Chip; Santana, Manuel; Welton, Robert F

    2016-01-01

    SNS ramps to higher power levels that can be sustained with high availability. The goal is 1.4 MW despite a compromised RFQ, which requires higher RF power than design levels to approach the nominal beam transmission. Unfortunately at higher power the RFQ often loses its thermal stability, a problem apparently enhanced by beam losses and high influxes of hydrogen. Delivering as much H- beam as possible with the least amount of hydrogen led to plasma outages. The root cause is the dense 1-ms long ~55-kW 2-MHz plasma pulses reflecting ~90% of the continuous ~300W, 13-MHz power, which was mitigated with a 4-ms filter for the reflected power signal and an outage resistant, slightly-detuned 13-MHz match. Lowering the H2 also increased the H- beam current to ~55 mA, and increased the transmission by ~7%.

  11. Final Remediation Report for the K-Area Bingham Pump Outage Pit (643-1G)

    SciTech Connect (OSTI)

    Morganstern, M.

    2002-06-18

    The K-Area Bingham Pump Outage Pit (K BPOP) Building Number 643-1G, is situated immediately south and outside the K-Reactor fence line and is approximately 400 feet in length and 60 feet in width. For the K BPOP operable unit, the Land Use Control (LUC) objectives are to prevent contact, removal, or excavation of buried waste in the area and to preclude residential use of the area.

  12. Energy Secretary Bodman and Minister of Natural Resources for Canada Lunn Release the 2003 Power Outage Final Report

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. - U.S. Department of Energy Secretary Samuel W. Bodman and Minister of Natural Resources for Canada Gary Lunn, today released the final report on the power outage that affected 50...

  13. Energy Secretary Bodman and Minister of Natural Resources for Canada Lunn Release the 2003 Power Outage Final Report

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy Secretary Samuel W. Bodman and Minister of Natural Resources for Canada Gary Lunn, today released the final report on the power outage that affected 50 million North Americans in August 2003.

  14. Methodology to predict the number of forced outages due to creep failure

    SciTech Connect (OSTI)

    Palermo, J.V. Jr.

    1996-12-31

    All alloy metals at a temperature above 950 degrees Fahrenheit experience creep damage. Creep failures in boiler tubes usually begin after 25 to 40 years of operation. Since creep damage is irreversible, the only remedy is to replace the tube sections. By predicting the number of failures per year, the utility can make the best economic decision concerning tube replacement. This paper describes a methodology to calculate the number of forced outages per yea due to creep failures. This methodology is particularly useful to utilities that have boilers that have at least 25 years of operation.

  15. Analytical Tools to Predict Distribution Outage Restoration Load. Final Project Report.

    SciTech Connect (OSTI)

    Law, John

    1994-11-14

    The main activity of this project has been twofold: (1) development of a computer model to predict CLPU(Cold Load Pickup) and (2) development of a field measurement and analysis method to obtain the input parameters of the CLPU model. The field measurement and analysis method is called the Step-Voltage-Test (STEPV). The Kootenai Electric Cooperative Appleway 51 feeder in Coeur d`Alene was selected for analysis in this project and STEPV tests were performed in winters of 92 and 93. The STEPV data was analyzed (method and results presented within this report) to obtain the Appleway 51 feeder parameters for prediction by the CLPU model. One only CLPU record was obtained in winter 1994. Unfortunately, the actual CLPU was not dramatic (short outage and moderate temperature) and did not display cyclic restoration current. A predicted Appleway 51 feeder CLPU was generated using the parameters obtained via the STEPV measurement/analysis/algorithm method at the same ambient temperature and outage duration as the measured actual CLPU. The predicted CLPU corresponds reasonably well with the single actual CLPU data obtained in winter 1994 on the Appleway 51 feeder.

  16. Reducing Duration of Refueling Outage by Optimizing Core Design and Shuffling Sequence

    SciTech Connect (OSTI)

    Wakker, P.H.; Verhagen, F.C.M.; Bloois, J.T. van; Sutton, W.R. III

    2005-07-15

    Reducing the duration of refueling outage is possible by optimizing the core design and the shuffling sequence. For both options software tools have been developed that have been applied to the three most recent cycles of the Borssele plant in the Netherlands. Applicability of the shuffling sequence optimization to boiling water reactors has been demonstrated by a comparison to a recent shuffle plan used in the Hatch plant located in the United States. Their uses have shown that both core design and shuffling sequence optimization can be exploited to reduce the time needed for reloading a core with an in-core shuffling scheme. Ex-core shuffling schemes for pressurized water reactors can still have substantial benefit from a core design using a minimized number of insert shuffles.

  17. Understanding the Benefits of Dispersed Grid-Connected Photovoltaics: From Avoiding the Next Major Outage to Taming Wholesale Power Markets

    SciTech Connect (OSTI)

    Letendre, Steven E.; Perez, Richard

    2006-07-15

    Thanks to new solar resource assessment techniques using cloud cover data available from geostationary satellites, it is apparent that grid-connected PV installations can serve to enhance electric grid reliability, preventing or hastening recovery from major power outages and serving to mitigate extreme price spikes in wholesale energy markets. (author)

  18. Olkiluoto 1 and 2 - Plant efficiency improvement and lifetime extension-project (PELE) implemented during outages 2010 and 2011

    SciTech Connect (OSTI)

    Kosonen, M.; Hakola, M.

    2012-07-01

    Teollisuuden Voima Oyj (TVO) is a non-listed public company founded in 1969 to produce electricity for its stakeholders. TVO is the operator of the Olkiluoto nuclear power plant. TVO follows the principle of continuous improvement in the operation and maintenance of the Olkiluoto plant units. The PELE project (Plant Efficiency Improvement and Lifetime Extension), mainly completed during the annual outages in 2010 and 2011, and forms one part of the systematic development of Olkiluoto units. TVO maintains a long-term development program that aims at systematically modernizing the plant unit systems and equipment based on the latest technology. According to the program, the Olkiluoto 1 and Olkiluoto 2 plant units are constantly renovated with the intention of keeping them safe and reliable, The aim of the modernization projects is to improve the safety, reliability, and performance of the plant units. PELE project at Olkiluoto 1 was done in 2010 and at Olkiluoto 2 in 2011. The outage length of Olkiluoto 1 was 26 d 12 h 4 min and Olkiluoto 2 outage length was 28 d 23 h 46 min. (Normal service-outage is about 14 days including refueling and refueling-outage length is about seven days. See figure 1) The PELE project consisted of several single projects collected into one for coordinated project management. Some of the main projects were as follows: - Low pressure turbines: rotor, stator vane, casing and turbine instrumentation replacement. - Replacement of Condenser Cooling Water (later called seawater pumps) pumps - Replacement of inner isolation valves on the main steam lines. - Generator and the generator cooling system replacement. - Low voltage switchgear replacement. This project will continue during future outages. PELE was a success. 100 TVO employees and 1500 subcontractor employees participated in the project. The execution of the PELE projects went extremely well during the outages. The replacement of the low pressure turbines and seawater pumps improved the

  19. Risk-based evaluation of Allowed Outage Times (AOTs) considering risk of shutdown

    SciTech Connect (OSTI)

    Mankamo, T.; Kim, I.S.; Samanta, P.K.

    1992-12-31

    When safety systems fail during power operation, Technical Specifications (TS) usually limit the repair within Allowed Outage Time (AOT). If the repair cannot be completed within the AOT, or no AOT is allowed, the plant is required to be shut down for the repair. However, if the capability to remove decay heat is degraded, shutting down the plant with the need to operate the affected decay-heat removal systems may impose a substantial risk compared to continued power operation over a usual repair time. Thus, defining a proper AOT in such situations can be considered as a risk-comparison between the repair in frill power state with a temporarily increased level of risk, and the altemative of shutting down the plant for the repair in zero power state with a specific associated risk. The methodology of the risk-comparison approach, with a due consideration of the shutdown risk, has been further developed and applied to the AOT considerations of residual heat removal and standby service water systems of a boiling water reactor (BWR) plant. Based on the completed work, several improvements to the TS requirements for the systems studied can be suggested.

  20. Risk-based evaluation of Allowed Outage Times (AOTs) considering risk of shutdown

    SciTech Connect (OSTI)

    Mankamo, T. ); Kim, I.S.; Samanta, P.K. )

    1992-01-01

    When safety systems fail during power operation, Technical Specifications (TS) usually limit the repair within Allowed Outage Time (AOT). If the repair cannot be completed within the AOT, or no AOT is allowed, the plant is required to be shut down for the repair. However, if the capability to remove decay heat is degraded, shutting down the plant with the need to operate the affected decay-heat removal systems may impose a substantial risk compared to continued power operation over a usual repair time. Thus, defining a proper AOT in such situations can be considered as a risk-comparison between the repair in frill power state with a temporarily increased level of risk, and the altemative of shutting down the plant for the repair in zero power state with a specific associated risk. The methodology of the risk-comparison approach, with a due consideration of the shutdown risk, has been further developed and applied to the AOT considerations of residual heat removal and standby service water systems of a boiling water reactor (BWR) plant. Based on the completed work, several improvements to the TS requirements for the systems studied can be suggested.

  1. Unscheduled Downtime | The Ames Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    resources. ISU Telecommunications staff is aware of the issue. There is currently no time estimate for resolution. 81015 Solution: ISU telecom corrected the issue, the prolem...

  2. Short-Term Energy Outlook Supplement: 2015 Outlook for Gulf of Mexico Hurricane-Related Production Outages

    Gasoline and Diesel Fuel Update (EIA)

    4 Outlook for Gulf of Mexico Hurricane-Related Production Outages June 2014 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | STEO Supplement: 2014 Hurricane Outlook i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other

  3. Short-Term Energy Outlook Supplement: 2013 Outlook for Gulf of Mexico Hurricane-Related Production Outages

    U.S. Energy Information Administration (EIA) Indexed Site

    3 Outlook for Gulf of Mexico Hurricane-Related Production Outages June 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | STEO Supplement: 2013 Hurricane Outlook i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other

  4. Engineering Technician

    Broader source: Energy.gov [DOE]

    Alternate Title(s):Civil Engineering Technician; Electrical Engineering Technician; Mechanical Engineering Technician; Environmental Engineering Technician

  5. The impact of fuel cladding failure events on occupational radiation exposures at nuclear power plants: Case study, PWR (pressurized-water reactor) during an outage

    SciTech Connect (OSTI)

    Moeller, M.P.; Martin, G.F.; Kenoyer, J.L.

    1987-08-01

    This report is the second in a series of case studies designed to evaluate the magnitude of increase in occupational radiation exposures at commercial US nuclear power plants resulting from small incidents or abnormal events. The event evaluated is fuel cladding failure, which can result in elevated primary coolant activity and increased radiation exposure rates within a plant. For this case study, radiation measurements were made at a pressurized-water reactor (PWR) during a maintenance and refueling outage. The PWR had been operating for 22 months with fuel cladding failure characterized as 105 pin-hole leakers, the equivalent of 0.21% failed fuel. Gamma spectroscopy measurements, radiation exposure rate determinations, thermoluminescent dosimeter (TLD) assessments, and air sample analyses were made in the plant's radwaste, pipe penetration, and containment buildings. Based on the data collected, evaluations indicate that the relative contributions of activation products and fission products to the total exposure rates were constant over the duration of the outage. This constancy is due to the significant contribution from the longer-lived isotopes of cesium (a fission product) and cobalt (an activation product). For this reason, fuel cladding failure events remain as significant to occupational radiation exposure during an outage as during routine operations. As documented in the previous case study (NUREG/CR-4485 Vol. 1), fuel cladding failure events increased radiation exposure rates an estimated 540% at some locations of the plant during routine operations. Consequently, such events can result in significantly greater radiation exposure rates in many areas of the plant during the maintenance and refueling outages than would have been present under normal fuel conditions.

  6. Refinery Outages: Fall 2014

    Gasoline and Diesel Fuel Update (EIA)

    gasoline supply in a particular region because pipeline infrastructure, geography and marine shipping regulations constrain the amount of product that can flow among the different...

  7. Refinery Outages: Fall 2014

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    some Libyan crude oil production to the market, and increasing U.S. crude production. Economic growth in 2014 outside of the United States has been slow, and some recent data...

  8. Reliability Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LA-UR 15-27450 This document is approved for public release; further dissemination unlimited Reliability Engineering Reliability Engineering Current practice in reliability is ...

  9. Chemical Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARPA-E Basic Energy Sciences Materials Sciences and Engineering Chemical Sciences ... SunShot Grand Challenge: Regional Test Centers Chemical Engineering HomeTag:Chemical ...

  10. Engineering Institute

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Education Opportunities » Engineering Institute Engineering Institute Engineering dynamics that include flight, vibration isolation for precision manufacturing, earthquake engineering, blast loading, signal processing, and experimental model analysis. Contact Leader, Los Alamos Charles Farrar Email Leader, UCSD Michael Todd Email Los Alamos Program Administrator Jutta Kayser (505) 663-5649 Email Administrative Assistant Stacy Baker (505) 663-5233 Email Collaboration for conducting

  11. Stirling engines

    SciTech Connect (OSTI)

    Reader, G.T.; Hooper

    1983-01-01

    The Stirling engine was invented by a Scottish clergyman in 1816, but fell into disuse with the coming of the diesel engine. Advances in materials science and the energy crisis have made a hot air engine economically attractive. Explanations are full and understandable. Includes coverage of the underlying thermodynamics and an interesting historical section. Topics include: Introduction to Stirling engine technology, Theoretical concepts--practical realities, Analysis, simulation and design, Practical aspects, Some alternative energy sources, Present research and development, Stirling engine literature.

  12. SSRL BEAM PORT SCHEDULE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    5-1 Oct. 30, 2006 Oct. 31, 2006 Nov. 01, 2006 Nov. 02, 2006 Nov. 03, 2006 Nov. 04, 2006 Nov. 05, 2006 DOWN Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled Unscheduled BEAM LINE 5-2 Oct. 30, 2006 Oct. 31, 2006 Nov. 01, 2006 Nov. 02, 2006 Nov. 03, 2006 Nov. 04, 2006 Nov. 05, 2006 DOWN Unscheduled Unscheduled Unscheduled

  13. Engineering task plan for the development, fabrication and installation of rotary mode core sample truck grapple hoist box level wind system

    SciTech Connect (OSTI)

    BOGER, R.M.

    1999-05-12

    This Engineering Task Plan is to design, generate fabrication drawings, fabricate, test, and install the grapple hoist level wind system for Rotary Mode Core Sample Trucks (RMCST) 3 and 4. Deliverables will include generating fabrication drawings, fabrication of one level wind system, updating fabrication drawings as required, and installation of level wind systems on RMCST 3 or 4. The installation of the level wind systems will be done during a preventive maintenance outage.

  14. Proposed Plan for the R-Area Bingham Pump Outage Pits (643-8G, -9G, -10G) and R-Area Unknown Pits No.1, No.2, No.3 (RUNK-1, -2, -3)

    SciTech Connect (OSTI)

    Mundy, S.

    2002-07-31

    The purpose of this proposed plan is to describe the preferred remedial alternative for the R-Area Bingham Pump Outage Pits (R BPOPs) and the R-Area Unknowns (RUNKs) operable unit (OU) and to provide for public involvement in the decision-making process.

  15. Value Engineering

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2002-12-30

    To establish Department of Energy (DOE) value engineering policy that establishs and maintains cost-effective value procedures and processes.

  16. Shockwave Engine: Wave Disk Engine

    SciTech Connect (OSTI)

    2010-01-14

    Broad Funding Opportunity Announcement Project: MSU is developing a new engine for use in hybrid automobiles that could significantly reduce fuel waste and improve engine efficiency. In a traditional internal combustion engine, air and fuel are ignited, creating high-temperature and high-pressure gases which expand rapidly. This expansion of gases forces the engine’s pistons to pump and powers the car. MSU’s engine has no pistons. It uses the combustion of air and fuel to build up pressure within the engine, generating a shockwave that blasts hot gas exhaust into the blades of the engine’s rotors causing them to turn, which generates electricity. MSU’s redesigned engine would be the size of a cooking pot and contain fewer moving parts—reducing the weight of the engine by 30%. It would also enable a vehicle that could use 60% of its fuel for propulsion.

  17. Engineered Materials

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    7 Engineered Materials Materials design, fabrication, assembly, and characterization for national security needs. Contact Us Group Leader (Acting) Kimberly Obrey Email Deputy Group Leader Dominic Peterson Email Group Office (505)-667-6887 We perform polymer science and engineering, including ultra-precision target design, fabrication, assembly, characterization, and field support. We perform polymer science and engineering, including ultra-precision target design, fabrication, assembly,

  18. Engineering Institute

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Institute Engineering Institute Multidisciplinary engineering research that integrates advanced modeling and simulations, novel sensing systems and new developments in information technology. May 14, 2013 Los Alamos Research Park Los Alamos Research Park, the home of Engineering Institute Contact Institute Director Charles Farrar (505) 665-0860 Email UCSD EI Director Michael Todd (858) 534-5951 Executive Administrator Ellie Vigil (505) 667-2818 Email Administrative Assistant Rebecca Duran (505)

  19. General Engineers

    U.S. Energy Information Administration (EIA) Indexed Site

    General Engineers The U.S. Energy Information Administration (EIA) within the Department of Energy has forged a world-class information program that stresses quality, teamwork, and employee growth. In support of our program, we offer a variety of profes- sional positions, including the General Engineer, whose work is associated with analytical studies and evaluation projects pertaining to the operations of the energy industry. Responsibilities: General Engineers perform or participate in one or

  20. Rotary engine

    SciTech Connect (OSTI)

    Leas, A. M.; Leas, L. E.

    1985-02-12

    Disclosed are an engine system suitable for use with methyl alcohol and hydrogen and a rotary engine particularly suited for use in the engine system. The rotary engine comprises a stator housing having a plurality of radially directed chamber dividers, a principal rotor, a plurality of subordinate rotors each having an involute gear in its periphery mounted on the principal rotor, and means for rotating the subordinate rotors so that their involute gears accept the radially directed dividers as the subordinate rotors move past them.

  1. Electrical Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Power System Operation Operations Engineering, (J4200) 5555...

  2. Mechanical Engineer

    Broader source: Energy.gov [DOE]

    This position is located in the Engineering Services (PEJD) organization of Program Implementation Energy Efficiency, Power Services, Bonneville Power Administration (BPA). As part of the Power...

  3. Electronics Engineer

    Broader source: Energy.gov [DOE]

    This position is located in the Communications Test and Energization (TETD) organization of Commissioning and Testing (TET), Engineering and Technical Services (TE), Transmission Services (T),...

  4. Environmental Engineer

    Broader source: Energy.gov [DOE]

    A successful candidate in this position will be an environmental technical expert and advisor to integrate science and engineering principles to improve the natural environment and direct and...

  5. Thermoacoustic engines

    SciTech Connect (OSTI)

    Swift, G.W.

    1988-10-01

    Thermoacoustic engines, or acoustic heat engines, are energy-conversion devices that achieve simplicity and concomitant reliability by use of acoustic technology. Their efficiency can be a substantial fraction of Carnot's efficiency. In thermoacoustic prime movers, heat flow from a high-temperature source to a low-temperature sink generates acoustic power (which may be converted to electric power using a transducer). In thermoacoustic heat pumps and refrigerators, acoustic power is used to pump heat from a low-temperature source to a high-temperature sink. This review teaches the fundamentals of thermoacoustic engines, by analysis, intuition, and example.

  6. Civil Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Desert Southwest Region Engineering and Construction (G5600) 615 S. 43rd Avenue...

  7. Harmonic engine

    DOE Patents [OSTI]

    Bennett, Charles L.

    2009-10-20

    A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at a resonant frequency for controlling the flow of working fluid into and out of the expander, and also preferably includes a shunt line connecting an expansion chamber of the expander to a buffer chamber of the expander for minimizing pressure variations in the fluidic circuit of the engine. The engine is especially designed to operate with very high temperature input to the expander and very low temperature input to the compressor, to produce very high thermal conversion efficiency.

  8. Engineering Technician

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Desert Southwest Region Engineering and Construction (G5600) 615 S. 43rd Avenue...

  9. Combustion Engine

    Broader source: Energy.gov [DOE]

    Pictured here is an animation showing the basic mechanics of how an internal combustion engine works. With support from the Energy Department, General Motors researchers developed a new technology ...

  10. General Engineer

    Broader source: Energy.gov [DOE]

    This position is located in Office of Standard Contract Management, within the Office of the General Counsel (GC). The purpose of the position is to conduct technical and engineering reviews of the...

  11. Engine Combustion

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engine Combustion - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear

  12. structured engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    engineering - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy

  13. Reliability Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LA-UR 15-27450 This document is approved for public release; further dissemination unlimited Reliability Engineering Reliability Engineering Current practice in reliability is often fragmented, does not cover the full system lifecycle * Reliability needs to be addressed in design, development, and operational life * Reliability analysis should integrate information from components and systems Integrate proven reliability methods with world-class statistical science * Use methods and tools

  14. Refinery Outages: First Half 2015

    Gasoline and Diesel Fuel Update (EIA)

    to increase by 820,000 bbld in 2015. While global oil supply growth has been strong, economic growth outside of the United States has been slow, particularly in Russia and...

  15. Rotary engine

    SciTech Connect (OSTI)

    Meyman, U.

    1987-02-03

    A rotary engine is described comprising: two covers spaced from one another; rotors located between the covers and rotating and planetating in different phases; the rotors interengaging to form working chambers therebetween; means to supply fluid to the working chambers and means to exhaust fluid from the working chambers during the operating cycle of the engine; gearing for synchronizing rotation and planetation of the rotors and each including first and second gears arranged so that one of the gears is connected with the rotors while the other of the gears is connected with an immovable part of the engine and the gears engage with one another; carriers interconnecting the rotors and planetating in the same phase with the planetation of the rotors for synchronizing the rotation and planetation of the rotors; shafts arranged to support the carriers during their planetations; and elements for connecting the covers with one another.

  16. Value Engineering

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2004-01-07

    To establish Department of Energy (DOE) value engineering policy that meets the requirements of Public Law 104-106, Section 4306 as codified by 41 United States Code 432. Canceled by DOE N 251.94. Does not cancel other directives.

  17. Harmonic engine

    DOE Patents [OSTI]

    Bennett, Charles L.; Sewall, Noel; Boroa, Carl

    2014-08-19

    An engine based on a reciprocating piston engine that extracts work from pressurized working fluid. The engine includes a harmonic oscillator inlet valve capable of oscillating at a resonant frequency for controlling the flow of working fluid into of the engine. In particular, the inlet valve includes an inlet valve head and a spring arranged together as a harmonic oscillator so that the inlet valve head is moveable from an unbiased equilibrium position to a biased closed position occluding an inlet. Upon releasing the inlet valve the inlet valve head undergoes a single oscillation past the equilibrium positio to a maximum open position and returns to a biased return position close to the closed position to choke the flow and produce a pressure drop across the inlet valve causing the inlet valve to close. Protrusions carried either by the inlet valve head or piston head are used to bump open the inlet valve from the closed position and initiate the single oscillation of the inlet valve head, and protrusions carried either by the outlet valve head or piston head are used to close the outlet valve ahead of the bump opening of the inlet valve.

  18. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1. Volume 5: Analysis of core damage frequency from seismic events for plant operational state 5 during a refueling outage

    SciTech Connect (OSTI)

    Budnitz, R.J.; Davis, P.R.; Ravindra, M.K.; Tong, W.H.

    1994-08-01

    In 1989 the US Nuclear Regulatory Commission (NRC) initiated an extensive program to examine carefully the potential risks during low-power and shutdown operations. The program included two parallel projects, one at Sandia National Laboratories studying a boiling water reactor (Grand Gulf), and the other at Brookhaven National Laboratory studying a pressurized water reactor (Surry Unit 1). Both the Sandia and Brookhaven projects have examined only accidents initiated by internal plant faults---so-called ``internal initiators.`` This project, which has explored the likelihood of seismic-initiated core damage accidents during refueling outage conditions, is complementary to the internal-initiator analyses at Brookhaven and Sandia. This report covers the seismic analysis at Grand Gulf. All of the many systems modeling assumptions, component non-seismic failure rates, and human effort rates that were used in the internal-initiator study at Grand Gulf have been adopted here, so that the results of the study can be as comparable as possible. Both the Sandia study and this study examine only one shutdown plant operating state (POS) at Grand Gulf, namely POS 5 representing cold shutdown during a refueling outage. This analysis has been limited to work analogous to a level-1 seismic PRA, in which estimates have been developed for the core-damage frequency from seismic events during POS 5. The results of the analysis are that the core-damage frequency for earthquake-initiated accidents during refueling outages in POS 5 is found to be quite low in absolute terms, less than 10{sup {minus}7}/year.

  19. Advanced dimensional inspection for the reverse engineering of power plant equipment

    SciTech Connect (OSTI)

    Kotteakos, B.; Ball, K.A.

    1996-12-31

    Forced outages and critical path situations often leave electric utilities with very few options other than the OEM. What does the utility do when faced with the situation of long lead time or obsolete items necessary to bring units back on-line, or off load restrictions. At Southern California Edison Company (SCE), a proactive approach to the reverse engineering and inspection process was undertaken to reduce the effects of similar situations. Advances in dimensional measurement technology have afforded the authors` company a cost effective method for obtaining the necessary inspection data to remanufacture certain items. This paper identifies equipment utilized by SCE for the reverse engineering and inspection of turbine and turbine related components and their typical applications in the power generation industry.

  20. Black Pine Engineering Wins Clean Energy Trust Clean Energy Challenge...

    Office of Environmental Management (EM)

    ... hours, which lowers both energy costs and the risk of food spoiling during power outages. | Courtesy of Axiom Exergy National Clean Energy Business Plan ...

  1. Rotary engine

    SciTech Connect (OSTI)

    Larson, T. G.

    1985-10-22

    The rotary engine has a circumferential main chamber and at least one smaller combustion chamber spaced from the main chamber. The rotor includes a plurality of radially-projecting sealing members in spaced relationship thereabout for maintaining a fluid-sealed condition along a single fixed transverse strip area on the interior surface of the main chamber. A single radially-oriented axially-parallel piston vane is also carried by the rotor and moves through the fixed strip area of the main chamber at each revolution of the rotor. Plural passages for intake, compression, expansion, and exhaust are ported into the main chamber at locations proximate to the fixed strip area. Valve means in the passages selectively open and close the same for a cycle of engine operation involving intake, compression, burning, and exhaust.

  2. Rotary engine

    SciTech Connect (OSTI)

    Fawcett, S.L.

    1987-03-03

    In an internal combustion engine, external heat engine, heat pump, gaseous expander, pump or gas compressor, the combustion is described including means forming a cylindrical working chamber having intake and exhaust port means for gases, and two pistons having an arcuate length within the range of 90/sup 0/ to 120/sup 0/ of the cylindrical portion of the working chamber to move toward and away from each other for compression and expansion of gases by rotation on separate concentrically-arranged shafts. A seal means is carried by the walls of the cylindrical working chamber at each of spaced apart locations to continuously form a gas sealing relation with both of the pistons while the pistons rotate toward and away from each other in the cylindrical working chamber.

  3. Advanced Reciprocating Engine Systems

    Broader source: Energy.gov [DOE]

    The Advanced Reciprocating Engine Systems (ARES) program is designed to promote separate but parallel engine development between the major stationary, gaseous fueled engine manufacturers in the...

  4. Systems Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy Nuclear Energy

  5. Rotary engine

    SciTech Connect (OSTI)

    Fawcett, S.L.

    1988-02-09

    In an internal combustion engine, external heat engine, heat pump, gaseous expander, pump or gas compressor, the combination is described including means forming a cylindrical working chamber communicating with intake and exhaust port means for gases, two pistons having an arcuate length within the range of 90/sup 0/ to 120/sup 0/ of the cylindrical surface of the working chamber. The pistons are movable toward and away from each other for compression and expansion of gases in the working chamber while separately rotating concentrically-arranged shafts, a drive shaft, three sets of gearing for connecting the pistons to the drive shaft, a first set of the gearing drivingly coupled to a first of the separate concentric shafts, a second set of the gearing drivingly coupled to a second of the concentric shaft, and a third set of the gearing comprising non-circular gears. The drive shaft is secured to one gear of each of the first, second and third gear sets of gearing for rotating the drive shaft with a substantially constant velocity and torque output throughout the several phases of the working cycle of the engine, compressor or pump.

  6. Project Engineer (Nuclear/Mechanical Engineer) | Princeton Plasma...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Project Engineer (NuclearMechanical Engineer) Department: Engineering Supervisor(s): ... Its Mechanical Engineering Division (MED) is seeking to hire a NuclearMechanical Engineer ...

  7. HCCI in a Variable Compression Ratio Engine: Effects of Engine...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    in a Variable Compression Ratio Engine: Effects of Engine Variables HCCI in a Variable Compression Ratio Engine: Effects of Engine Variables 2004 Diesel Engine Emissions Reduction ...

  8. Stirling engine

    SciTech Connect (OSTI)

    Bolger, S.R.

    1992-03-17

    This patent describes an engine. It comprises at least two variable volume compartments joined by a porous medium regenerator; heat exchangers in heat exchange relationships with the variable volume compartments; a fixed quantity of gas in the compartments; a piston in each of the compartments; means to control the pistons to vary the volumes of the gas transferring between the compartments in the form of overlapping quadrilateral waveforms to compress the gas in both compartments through the same cycle pressure ratio during a cycle compression step, to shift the gas between compartments and to expand the gas in both compartments through the same cycle pressure ratio during a cycle expansion step.

  9. Rotary engine

    SciTech Connect (OSTI)

    Brownfield, L.A.

    1980-12-02

    The major components of this rotary engine are two equal sized rotary units, the housing containing them along with associated ignition and cooling systems. Each of the rotary units consists of a shaft, gear, two outer compressor wheels, and one center power wheel which has twice the axial thickness as the compressor wheel. All the wheels are cylindrical in shape with a lobe section comprising a 180/sup 0/ arc on the periphery of each wheel which forms an expanding and contracting volumetric chamber by means of leading and trailing lips. The lobes of the first rotary unit are situated 180/sup 0/ opposite the lobes of the second adjacent mating rotary unit, thus lobes can intermesh with its corresponding wheel.

  10. Metabolic Engineering X Conference

    SciTech Connect (OSTI)

    Flach, Evan

    2015-05-07

    The International Metabolic Engineering Society (IMES) and the Society for Biological Engineering (SBE), both technological communities of the American Institute of Chemical Engineers (AIChE), hosted the Metabolic Engineering X Conference (ME-X) on June 15-19, 2014 at the Westin Bayshore in Vancouver, British Columbia. It attracted 395 metabolic engineers from academia, industry and government from around the globe.

  11. Rotary engine

    SciTech Connect (OSTI)

    Smith, T.A.

    1992-01-28

    This patent describes an improved rotary engine. It comprises an annular master cylinder composed of a cylindrical housing, a continuous hollow outer concentric shaft, an outward end housing and an inward end housing; means to form a dynamically balanced disc piston assembly extending from the the outward end housing to the the inward end housing thereby dividing the the annular master cylinder into at least three separate gas tight cylinders formed by rotating discs, each cylinder having at least two pistons independently rotatable therein; means to isolate the unexpanded gases from any exit path into the housing of the piston controlling means; and wherein one of the pistons in each cylinder is connected directly to the the continuous outer concentric shaft to form a first piston assembly, the other of the pistons in each cylinder is connected to the discs which are connected to the end of an inner concentric shaft to form a second piston assembly, means for controlling the piston action by a common eccentric shaft such that as the pistons rotate they expand and reduce the distance between them thereby changing the volume between the pistons within each of the cylinders.

  12. Study of Engine Operating Parameter Effects on GDI Engine Particle...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Study of Engine Operating Parameter Effects on GDI Engine Particle-Number Emissions Study of Engine Operating Parameter Effects on GDI Engine Particle-Number Emissions Results show ...

  13. Increased Engine Efficiency via Advancements in Engine Combustion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engine Efficiency via Advancements in Engine Combustion Systems Increased Engine Efficiency via Advancements in Engine Combustion Systems Presentation given at the 16th Directions...

  14. Sandia Energy - HCCI/SCCI Engine Fundamentals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    HCCISCCI Engine Fundamentals Home Transportation Energy Predictive Simulation of Engines Engine Combustion Automotive HCCISCCI Engine Fundamentals HCCISCCI Engine...

  15. Sandia Energy - HCCI/SCCI Engine Fundamentals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    HCCISCCI Engine Fundamentals Home Transportation Energy Predictive Simulation of Engines Engine Combustion Heavy Duty HCCISCCI Engine Fundamentals HCCISCCI Engine...

  16. Taking an engine`s temperature

    SciTech Connect (OSTI)

    Allison, S.W.; Beshears, D.L.; Cates, M.R.; Noel, B.W.; Turley, W.D.

    1997-01-01

    Ceramic and ceramic-coated components will be of increasing importance in the advanced engines now under development. Ceramics enable engines to run at much higher temperatures than the superalloys in more conventional engines can. The two options for noncontact high-temperature measurements of ceramic components are pyrometry and phosphor thermometry. This article describes how when properly applied as a thin coating, thermally sensitive phosphors can monitor the temperature of ceramic surfaces inside an engine.

  17. Engine lubricating system

    SciTech Connect (OSTI)

    Kurio, N.; Yoshimi, H.

    1988-08-23

    This patent describes an engine lubricating system in which a measured amount of lubricating oil is supplied to the combustion chamber of an engine by a metering oil pump so that a larger amount of lubricating oil is supplied to the combustion chamber when the engine load is heavy than when the engine load is light, characterized by having a lubricating oil supply rate correction means which non-linearly increases the amount of the lubricating oil supplied to the combustion chamber with respect to engine r.p.m. so that the amount of oil supplied per unit engine revolution is greater at high engine speed than at low engine speed.

  18. Chemical & Engineering News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ARPA-E Basic Energy Sciences Materials Sciences and Engineering Chemical Sciences ... SunShot Grand Challenge: Regional Test Centers Chemical & Engineering News Home...

  19. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Analysis of core damage frequency from internal events for Plant Operational State 5 during a refueling outage. Volume 2, Part 3: Internal Events Appendices I and J

    SciTech Connect (OSTI)

    Yakle, J.; Darby, J.; Whitehead, D.; Staple, B.

    1994-06-01

    This report provides supporting documentation for various tasks associated with the performance of the probablistic risk assessment for Plant Operational State 5 during a refueling outage at Grand Gulf, Unit 1 as documented in Volume 2, Part 1 of NUREG/CR-6143.

  20. Full-scale demonstration of low-NO{sub x} cell{trademark} burner retrofit: Addendum to long-term testing report, September 1994 outage: Examination of corrosion test panel and UT survey in DP&L Unit {number_sign}4

    SciTech Connect (OSTI)

    Kung, S.C.; Kleisley, R.J.

    1995-06-01

    As part of this DOE`s demonstration program, a corrosion test panel was installed on the west sidewall of Dayton Power & Light Unit no.4 at the J. M. Stuart Station (JMSS4) during the burner retrofit outage in November 1991. The test panel consisted of four sections of commercial coatings separated by bare SA213-T2 tubing. During the retrofit outage, a UT survey was performed to document the baseline wall thicknesses of the test panel, as well as several furnace wall areas outside the test panel. The purpose of the UT survey was to generate the baseline data so that the corrosion wastage associated with the operation of Low NO{sub x} Cell Burners (LNCB{trademark} burner) could be quantitatively determined. The corrosion test panel in JMSS4 was examined in April 1993 after the first 15-month operation of the LNCB{trademark} burners. Details of the corrosion analysis and UT data were documented in the Long-Term Testing Report. The second JMSS4 outage following the LNCB{trademark} burner retrofit took place in September 1944. Up to this point, the test panel in JMSS4 had been exposed to the corrosive combustion environment for approximately 31 months under normal boiler operation of JMSS4. This test period excluded the down time for the April 1993 outage. During the September 1994 outage, 70 tube samples of approximately one-foot length were cut from the bottom of the test panel. These samples were evaluated by the Alliance Research Center of B&W using the same metallurgical techniques as those employed for the previous outage. In addition, UT measurements were taken on the same locations of the lower furnace walls in JMSS4 as those during the prior outages. Results of the metallurgical analyses and UT surveys from different exposure times were compared, and the long-term performance of waterwall materials was analyzed. The corrosion data obtained from the long-term field study at JMSS4 after 32 months of LNCB{trademark} burner operation are summarized in this report.

  1. Jefferson Lab Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineering Privacy and Security Notice Skip over navigation search JLab Engineering Please upgrade your browser. This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Engineering Division Engineering Pressure Systems Seminars/Training print version Mechanical Systems Mechanical Engineering - Document Control Survey Alignment Machine Shop Installation/Vacuum Cryogenics Cryogenics - Cryogenics Department

  2. The Phillips Stirling engine

    SciTech Connect (OSTI)

    Hargreaves, C.M.

    1991-01-01

    This book is about the Stirling engine and its development from the heavy cast-iron machine of the 19th century to that of today. It is a history of a research effort spanning nearly 50 years, together with an outline of principles, and some technical details and descriptions of the more important engines. Contents include: the hot-air engine; the 20th-century revival; the Stirling cycle; rhombic-drive engines; heating and cooling; pistons and seals; electric generators and heat pumps; exotic heat sources; the engine and the environment; swashplate engines; and the past and the future.

  3. Advanced Natural Gas Reciprocating Engine(s)

    SciTech Connect (OSTI)

    Pike, Edward

    2014-03-31

    The objective of the Cummins ARES program, in partnership with the US Department of Energy (DOE), is to develop advanced natural gas engine technologies that increase engine system efficiency at lower emissions levels while attaining lower cost of ownership. The goals of the project are to demonstrate engine system achieving 50% Brake Thermal Efficiency (BTE) in three phases, 44%, 47% and 50% (starting baseline efficiency at 36% BTE) and 0.1 g/bhp-hr NOx system out emissions (starting baseline NOx emissions at 2 – 4 g/bhp-hr NOx). Primary path towards above goals include high Brake Mean Effective Pressure (BMEP), improved closed cycle efficiency, increased air handling efficiency and optimized engine subsystems. Cummins has successfully demonstrated each of the phases of this program. All targets have been achieved through application of a combined set of advanced base engine technologies and Waste Heat Recovery from Charge Air and Exhaust streams, optimized and validated on the demonstration engine and other large engines. The following architectures were selected for each Phase: Phase 1: Lean Burn Spark Ignited (SI) Key Technologies: High Efficiency Turbocharging, Higher Efficiency Combustion System. In production on the 60/91L engines. Over 500MW of ARES Phase 1 technology has been sold. Phase 2: Lean Burn Technology with Exhaust Waste Heat Recovery (WHR) System Key Technologies: Advanced Ignition System, Combustion Improvement, Integrated Waste Heat Recovery System. Base engine technologies intended for production within 2 to 3 years Phase 3: Lean Burn Technology with Exhaust and Charge Air Waste Heat Recovery System Key Technologies: Lower Friction, New Cylinder Head Designs, Improved Integrated Waste Heat Recovery System. Intended for production within 5 to 6 years Cummins is committed to the launch of next generation of large advanced NG engines based on ARES technology to be commercialized worldwide.

  4. Forecourt and Gas Infrastructure Optimization

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Forecourt and Gas Infrastructure Optimization Bruce Kelly Nexant, Inc. Hydrogen Delivery Analysis Meeting May 8-9, 2007 Columbia, Maryland 2 Analysis of Market Demand and Supply Variations Supply Side Variations: Central Production Plant Outages - Scheduled yearly maintenance: Typically 5 to 10 consecutive days each year - Unscheduled maintenance outages: Indeterminate time and length - Natural disasters: A few days? Demand side variations - Hourly at refueling sites - Day to day at refueling

  5. Polymer Engineering Center

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Polymer Engineering Center University of Wisconsin-Madison Experimental and Numerical Studies of the Temperature Field in Selective Laser Sintering to Improve Shrinkage and Warpage Prediction Prof. Dr.-Ing. Natalie Rudolph Polymer Engineering Center Department of Mechanical Engineering University of Wisconsin-Madison 1513 University Ave Madison, WI 53706 Advanced Qualification of Additive Manufacturing Materials Workshop, July 20-21, 2015 in Santa Fe, NM Polymer Engineering Center University of

  6. RESEARCH PERSONNEL AND ENGINEERING STAFF

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Scientist (20%) Engineering Staff Walter Chapman, Mech. Engineer - To 93002 Greg Derrig, Senior Mechanical Engineer Lee Norris, Instr. Shop Supervisor - From 10102 ...

  7. Symbiotic Engineering | Open Energy Information

    Open Energy Info (EERE)

    Symbiotic Engineering Jump to: navigation, search Name: Symbiotic Engineering Place: Boulder, CO Website: www.symbioticengineering.com References: Symbiotic Engineering1...

  8. ETA Engineering | Open Energy Information

    Open Energy Info (EERE)

    ETA Engineering Jump to: navigation, search Logo: ETA Engineering Name: ETA Engineering Address: 4049 E. Presidio St., Suite 117 Place: Mesa, Arizona Zip: 85215 Product: renewable...

  9. Black Pine Engineering

    Broader source: Energy.gov [DOE]

    Black Pine Engineering is commercializing a disruptive technology in the turbomachinery industry. Using a patented woven composite construction, Black Pine Engineering can make turbomachines (turbines, compressors) that are cheaper and lighter than competing technologies. Using this technology, Black Pine Engineering will sell turbo-compressors which solve the problem of wasted steam in geothermal power plants.

  10. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1. Volume 2, Part 1C: Analysis of core damage frequency from internal events for plant operational State 5 during a refueling outage, Main report (Sections 11--14)

    SciTech Connect (OSTI)

    Whitehead, D.; Darby, J.; Yakle, J.

    1994-06-01

    This document contains the accident sequence analysis of internally initiated events for Grand Gulf, Unit 1 as it operates in the Low Power and Shutdown Plant Operational State 5 during a refueling outage. The report documents the methodology used during the analysis, describes the results from the application of the methodology, and compares the results with the results from two full power analyses performed on Grand Gulf.

  11. Solar powered Stirling engine

    SciTech Connect (OSTI)

    Meijer, R.J.

    1987-11-24

    In a solar dish module which comprises a dish which receives incident solar rays and reflects them to a focus at which is located the combination of a receiver and a heat engine organized and arranged so that the heat energy of the reflected solar rays collected at the receiver powers the engine, and wherein the receiver and heat engine are supported from the dish by a framework, the improvement is described which comprises journal means for journaling at least the engine on the framework to maintain certain predetermined spatial orientation for the engine in relation to the direction of gravity irrespective of spatial orientation of the dish.

  12. Engine intake system

    SciTech Connect (OSTI)

    Kanesaka, H.

    1989-02-07

    An intake system is described for an internal combustion engine, the system comprising: an intake passage having an intake port and an inertial supercharging intake pipe leading to the intake port; an intake valve mounted in the intake port and operatively connected to the engine for alternately opening and closing the intake port; a rotary valve operatively connected to the engine and disposed in the intake passage intermediate the inertial supercharging intake pipe and the intake port. The rotary valve is rotatable for opening and closing the intake passage, and timing adjusting means operatively connected to the engine and to the rotary valve for retarding the opening of the rotary valve relative to the opening of the intake valve at low engine speeds, and for advancing the opening of the rotary valve at high engine speeds, whereby the retarding and advancing of the opening of the rotary valve enables inertial supercharging in the intake pipe at both low and high engine speeds.

  13. Mechanical Engineering Department technical review

    SciTech Connect (OSTI)

    Carr, R.B.; Abrahamson, L.; Denney, R.M.; Dubois, B.E

    1982-01-01

    Technical achievements and publication abstracts related to research in the following Divisions of Lawrence Livermore Laboratory are reported in this biannual review: Nuclear Fuel Engineering; Nuclear Explosives Engineering; Weapons Engineering; Energy Systems Engineering; Engineering Sciences; Magnetic Fusion Engineering; and Material Fabrication. (LCL)

  14. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Evaluation of severe accident risks for plant operational state 5 during a refueling outage. Main report and appendices, Volume 6, Part 1

    SciTech Connect (OSTI)

    Brown, T.D.; Kmetyk, L.N.; Whitehead, D.; Miller, L.; Forester, J.; Johnson, J.

    1995-03-01

    Traditionally, probabilistic risk assessments (PRAS) of severe accidents in nuclear power plants have considered initiating events potentially occurring only during full power operation. Recent studies and operational experience have, however, implied that accidents during low power and shutdown could be significant contributors to risk. In response to this concern, in 1989 the Nuclear Regulatory Commission (NRC) initiated an extensive program to carefully examine the potential risks during low power and shutdown operations. Two plants, Surry (pressurized water reactor) and Grand Gulf (boiling water reactor), were selected as the plants to be studied. The program consists of two parallel projects being performed by Brookhaven National Laboratory (Surry) and Sandia National Laboratories (Grand Gulf). The program objectives include assessing the risks of severe accidents initiated during plant operational states other than full power operation and comparing the estimated risks with the risk associated with accidents initiated during full power operation as assessed in NUREG-1150. The scope of the program is that of a Level-3 PRA. The subject of this report is the PRA of the Grand Gulf Nuclear Station, Unit 1. The Grand Gulf plant utilizes a 3833 MWt BUR-6 boiling water reactor housed in a Mark III containment. The Grand Gulf plant is located near Port Gibson, Mississippi. The regime of shutdown analyzed in this study was plant operational state (POS) 5 during a refueling outage, which is approximately Cold Shutdown as defined by Grand Gulf Technical Specifications. The entire PRA of POS 5 is documented in a multi-volume NUREG report (NUREG/CR-6143). The internal events accident sequence analysis (Level 1) is documented in Volume 2. The Level 1 internal fire and internal flood analyses are documented in Vols 3 and 4, respectively.

  15. Stirling cycle rotary engine

    SciTech Connect (OSTI)

    Chandler, J.A.

    1988-06-28

    A Stirling cycle rotary engine for producing mechanical energy from heat generated by a heat source external to the engine, the engine including: an engine housing having an interior toroidal cavity with a central housing axis for receiving a working gas, the engine housing further having a cool as inlet port, a compressed gas outlet port, a heated compressed gas inlet port, and a hot exhaust gas outlet port at least three rotors each fixedly mounted to a respective rotor shaft and independently rotatable within the toroidal cavity about the central axis; each of the rotors including a pair of rotor blocks spaced radially on diametrically opposing sides of the respective rotor shaft, each rotor block having a radially fixed curva-linear outer surface for sealed rotational engagement with the engine housing.

  16. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E.; Anderson, Brian L.; O'Brien, Kevin C.

    2011-11-01

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  17. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E.; Anderson, Brian L.; O'Brien, Kevin C.

    2006-05-09

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  18. Science & Engineering Capabilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Capabilities Science & Engineering Capabilities These capabilities are our science and engineering at work for the national security interest in areas from global climate to cyber security, from nonproliferation to new materials, from clean energy solutions to supercomputing. Accelerators, Electrodynamics» Energy» Materials Science» Bioscience: Bioenergy, Biosecurity, and Health» Engineering» National Security, Weapons Science» Chemical Science» High-Energy-Density Plasmas, Fluids»

  19. Integrated and Engineered Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Integrated and Engineered Systems Integrated and Engineered Systems National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Contact thumbnail of Business Development Executive Miranda Intrator Business Development Executive Richard P. Feynmnan Center for Innovation (505) 665-8315 Email Engineers at Los Alamos create, design, and build the

  20. Chemical Diagnostics and Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    CDE Chemical Diagnostics and Engineering We support stockpile manufacturing, surveillance, applied and basic energy sciences, threat reduction, public health, the environment, and space exploration. Contact Us Group Leader Peter Stark Deputy Group Leader Tom Yoshida Group Office (505) 667-5740 X-Ray Photoelectron Spectroscopy X-Ray Photoelectron Spectroscopy The Chemical Diagnostics and Engineering (C-CDE) Group combines engineering design with routine analytical services and state-of-the-art

  1. Supervisory Electrical Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Maintenance, (J5640) Engineering and Construciton 5555 E....

  2. ARM - Engineering Processes

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Processes Workflow Graphic Engineering Workflow Document Tools for Workflow ECR ECO BCR Ingests Value-Added Products Reprocessing Instruments Data System Elements Field...

  3. Stirling engine heating system

    SciTech Connect (OSTI)

    Johansson, L.N.; Houtman, W.H.; Percival, W.H.

    1988-06-28

    A hot gas engine is described wherein a working gas flows back and forth in a closed path between a relatively cooler compression cylinder side of the engine and a relatively hotter expansion cylinder side of the engine and the path contains means including a heat source and a heat sink acting upon the gas in cooperation with the compression and expansion cylinders to cause the gas to execute a thermodynamic cycle wherein useful mechanical output power is developed by the engine, the improvement in the heat source which comprises a plurality of individual tubes each forming a portion of the closed path for the working gas.

  4. SCADA Engineering Solutions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering ...

  5. Internet strategies for engineers

    SciTech Connect (OSTI)

    Hill, K.; Beruvides, M.G.

    1997-11-01

    This report contains viewgraphs on using internet strategies for engineers. How the internet is being used and what problems are being encountered are being considered.

  6. Electrical Engineer (Project Manager)

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Maintenance, Engineering & Construction Facility...

  7. Recent Graduate- Electrical Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Power System Operations Operations Engineering (J4200) 5555...

  8. XML Engineering Environment

    Energy Science and Technology Software Center (OSTI)

    2006-07-27

    The XML Engineering Environment is a reconfigurable software system that allows users to translate, enhance and route data from sources to sinks.

  9. Engine and method for operating an engine

    DOE Patents [OSTI]

    Lauper, Jr., John Christian; Willi, Martin Leo; Thirunavukarasu, Balamurugesh; Gong, Weidong

    2008-12-23

    A method of operating an engine is provided. The method may include supplying a combustible combination of reactants to a combustion chamber of the engine, which may include supplying a first hydrocarbon fuel, hydrogen fuel, and a second hydrocarbon fuel to the combustion chamber. Supplying the second hydrocarbon fuel to the combustion chamber may include at least one of supplying at least a portion of the second hydrocarbon fuel from an outlet port that discharges into an intake system of the engine and supplying at least a portion of the second hydrocarbon fuel from an outlet port that discharges into the combustion chamber. Additionally, the method may include combusting the combustible combination of reactants in the combustion chamber.

  10. Advanced Natural Gas Reciprocating Engine(s)

    SciTech Connect (OSTI)

    Kwok, Doris; Boucher, Cheryl

    2009-09-30

    Energy independence and fuel savings are hallmarks of the nations energy strategy. The advancement of natural gas reciprocating engine power generation technology is critical to the nations future. A new engine platform that meets the efficiency, emissions, fuel flexibility, cost and reliability/maintainability targets will enable American manufacturers to have highly competitive products that provide substantial environmental and economic benefits in the US and in international markets. Along with Cummins and Waukesha, Caterpillar participated in a multiyear cooperative agreement with the Department of Energy to create a 50% efficiency natural gas powered reciprocating engine system with a 95% reduction in NOx emissions by the year 2013. This platform developed under this agreement will be a significant contributor to the US energy strategy and will enable gas engine technology to remain a highly competitive choice, meeting customer cost of electricity targets, and regulatory environmental standard. Engine development under the Advanced Reciprocating Engine System (ARES) program was divided into phases, with the ultimate goal being approached in a series of incremental steps. This incremental approach would promote the commercialization of ARES technologies as soon as they emerged from development and would provide a technical and commercial foundation of later-developing technologies. Demonstrations of the Phase I and Phase II technology were completed in 2004 and 2008, respectively. Program tasks in Phase III included component and system development and testing from 2009-2012. Two advanced ignition technology evaluations were investigated under the ARES program: laser ignition and distributed ignition (DIGN). In collaboration with Colorado State University (CSU), a laser ignition system was developed to provide ignition at lean burn and high boost conditions. Much work has been performed in Caterpillars DIGN program under the ARES program. This work has

  11. Perturbing engine performance measurements to determine optimal engine control settings

    DOE Patents [OSTI]

    Jiang, Li; Lee, Donghoon; Yilmaz, Hakan; Stefanopoulou, Anna

    2014-12-30

    Methods and systems for optimizing a performance of a vehicle engine are provided. The method includes determining an initial value for a first engine control parameter based on one or more detected operating conditions of the vehicle engine, determining a value of an engine performance variable, and artificially perturbing the determined value of the engine performance variable. The initial value for the first engine control parameter is then adjusted based on the perturbed engine performance variable causing the engine performance variable to approach a target engine performance variable. Operation of the vehicle engine is controlled based on the adjusted initial value for the first engine control parameter. These acts are repeated until the engine performance variable approaches the target engine performance variable.

  12. Career Map: Industrial Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Industrial Engineer Career Map: Industrial Engineer Two industrial engineers analyze data on a computer. Industrial Engineer Position Title Industrial Engineer Alternate Title(s) Production Engineer, Process Engineer, Manufacturing Engineer, Industrial Production Manager Education & Training Level Advanced, Bachelors required, prefer graduate degree Education & Training Level Description Industrial engineers should have a bachelor's degree in industrial engineering. Employers also value

  13. Career Map: Research Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engineer Career Map: Research Engineer Two research engineers wearing safety glasses view results of an experiment. Research Engineer Position Title Research Engineer Alternate Title(s) Government Engineer, Research and Development Engineer, Basic Research Engineer, Component Researcher, Materials Engineer Education & Training Level Bachelor's degree required, prefer graduate degree Education & Training Level Description Research engineers must have a bachelor's degree. Employers value

  14. Refinery Outages: First-Half 2016

    U.S. Energy Information Administration (EIA) Indexed Site

    Analysis & Projections Glossary › FAQS › Overview Projection Data Monthly short-term forecasts to 2016 Annual projections to 2040 International projections All projections reports Analysis & Projections Major Topics Most popular Annual Energy Outlook related Congressional & other requests International Energy Outlook related Presentations Recurring Short-Term Outlook Related Special outlooks Testimony All reports Browse by Tag Alphabetical Frequency Tag Cloud Full report Previous

  15. SCADA Engineering Solutions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineering Solutions - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced

  16. Stirling engine piston ring

    DOE Patents [OSTI]

    Howarth, Roy B.

    1983-01-01

    A piston ring design for a Stirling engine wherein the contact pressure between the piston and the cylinder is maintained at a uniform level, independent of engine conditions through a balancing of the pressure exerted upon the ring's surface and thereby allowing the contact pressure on the ring to be predetermined through the use of a preloaded expander ring.

  17. Engineered Natural Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineered Natural Systems Onsite researchers at NETL develop processes, techniques, instrumentation, and relationships to collect, interpret, and disseminate data in an effort to characterize and understand the behavior of engineered natural systems. Research includes investigating theoretical and observed phenomena to support program needs and developing new concepts in the areas of analytical biogeochemistry, geology, and monitoring. Specific expertise includes: Analytical- Bio- and Geo-

  18. Engineering Division Superconducting

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    & Engineering Division Superconducting Magnet Technology for Fusion and Large Scale Applications Joseph V. Minervini Massachusetts Institute of Technology Plasma Science and Fusion Center Princeton Plasma Physics Laboratory Colloquium Princeton, NJ October 15, 2014 Technology & Engineering Division Contents * Fusion Magnets - Present and Future - Vision - State-of-the-art - New developments in superconductors * Advanced fusion magnet technology * Other large scale applications of

  19. Free piston stirling engines

    SciTech Connect (OSTI)

    Walker, C.

    1985-01-01

    This book presents a basic introduction to free piston Stirling engine technology through a review of specialized background material. It also includes information based on actual construction and operation experience with these machines, as well as theoretical and analytical insights into free piston Stirling engine technology.

  20. Computational Science and Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computational Science and Engineering NETL's Computational Science and Engineering competency consists of conducting applied scientific research and developing physics-based simulation models, methods, and tools to support the development and deployment of novel process and equipment designs. Research includes advanced computations to generate information beyond the reach of experiments alone by integrating experimental and computational sciences across different length and time scales. Specific

  1. Metabolic Engineering VII Conference

    SciTech Connect (OSTI)

    Kevin Korpics

    2012-12-04

    The aims of this Metabolic Engineering conference are to provide a forum for academic and industrial researchers in the field; to bring together the different scientific disciplines that contribute to the design, analysis and optimization of metabolic pathways; and to explore the role of Metabolic Engineering in the areas of health and sustainability. Presentations, both written and oral, panel discussions, and workshops will focus on both applications and techniques used for pathway engineering. Various applications including bioenergy, industrial chemicals and materials, drug targets, health, agriculture, and nutrition will be discussed. Workshops focused on technology development for mathematical and experimental techniques important for metabolic engineering applications will be held for more in depth discussion. This 2008 meeting will celebrate our conference tradition of high quality and relevance to both industrial and academic participants, with topics ranging from the frontiers of fundamental science to the practical aspects of metabolic engineering.

  2. Thermoacoustic engines and refrigerators

    SciTech Connect (OSTI)

    Swift, G.

    1996-12-31

    This report is a transcript of a practice lecture given in preparation for a review lecture on the operation of thermoacoustic engines and refrigerators. The author begins by a brief review of the thermodynamic principles underlying the operation of thermoacoustic engines and refrigerators. Remember from thermodynamics class that there are two kinds of heat engines, the heat engine or the prime mover which produces work from heat, and the refrigerator or heat pump that uses work to pump heat. The device operates between two thermal reservoirs at temperatures T{sub hot} and T{sub cold}. In the heat engine, heat flows into the device from the reservoir at T{sub hot}, produces work, and delivers waste heat into the reservoir at T{sub cold}. In the refrigerator, work flows into the device, lifting heat Q{sub cold} from reservoir at T{sub cold} and rejecting waste heat into the reservoir at T{sub hot}.

  3. Increased Engine Efficiency via Advancements in Engine Combustion Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Engine Efficiency via Advancements in Engine Combustion Systems Increased Engine Efficiency via Advancements in Engine Combustion Systems Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. deer10_sisken.pdf (978.17 KB) More Documents & Publications High-Efficiency Engine Technologies Session Introduction Demonstrating and Validating a Next Generation Model-Based Controller for

  4. E85 Optimized Engine

    SciTech Connect (OSTI)

    Bower, Stanley

    2011-12-31

    A 5.0L V8 twin-turbocharged direct injection engine was designed, built, and tested for the purpose of assessing the fuel economy and performance in the F-Series pickup of the Dual Fuel engine concept and of an E85 optimized FFV engine. Additionally, production 3.5L gasoline turbocharged direct injection (GTDI) EcoBoost engines were converted to Dual Fuel capability and used to evaluate the cold start emissions and fuel system robustness of the Dual Fuel engine concept. Project objectives were: to develop a roadmap to demonstrate a minimized fuel economy penalty for an F-Series FFV truck with a highly boosted, high compression ratio spark ignition engine optimized to run with ethanol fuel blends up to E85; to reduce FTP 75 energy consumption by 15% - 20% compared to an equally powered vehicle with a current production gasoline engine; and to meet ULEV emissions, with a stretch target of ULEV II / Tier II Bin 4. All project objectives were met or exceeded.

  5. Heavy Truck Engine Program

    SciTech Connect (OSTI)

    Nelson, Christopher

    2009-01-08

    The Heavy Duty Truck Engine Program at Cummins embodied three significant development phases. All phases of work strove to demonstrate a high level of diesel engine efficiency in the face of increasingly stringent emission requirements. Concurrently, aftertreatment system development and refinement was pursued in support of these efficiency demonstrations. The program's first phase focused on the demonstration in-vehicle of a high level of heavy duty diesel engine efficiency (45% Brake Thermal Efficiency) at a typical cruise condition while achieving composite emissions results which met the 2004 U.S. EPA legislated standards. With a combination of engine combustion calibration tuning and the development and application of Urea-based SCR and particulate aftertreatment, these demonstrations were successfully performed by Q4 of 2002. The second phase of the program directed efforts towards an in-vehicle demonstration of an engine system capable of meeting 2007 U.S. EPA legislated emissions requirements while achieving 45% Brake Thermal Efficiency at cruise conditions. Through further combustion optimization, the refinement of Cummins Cooled EGR architecture, the application of a high pressure common rail fuel system and the incorporation of optimized engine parasitics, Cummins Inc. successfully demonstrated these deliverables in Q2 of 2004. The program's final phase set a stretch goal of demonstrating 50% Brake Thermal Efficiency from a heavy duty diesel engine system capable of meeting 2010 U.S. EPA legislated emissions requirements. Cummins chose to pursue this goal through further combustion development and refinement of the Cooled EGR system architecture and also applied a Rankine cycle Waste Heat Recovery technique to convert otherwise wasted thermal energy to useful power. The engine and heat recovery system was demonstrated to achieve 50% Brake Thermal Efficiency while operating at a torque peak condition in second quarter, 2006. The 50% efficient engine

  6. Metabolic Pathways and Metabolic Engineering

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    engineering Adam Guss Genetic and Metabolic Engineer Oak Ridge National Laboratory Sept 25, 2013 2 Managed by UT-Battelle for the U.S. Department of Energy Metabolic engineering of ...

  7. VALUE ENGINEERING.PDF

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    6 I N S P E C T I O N R E P O R T U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF INSPECTIONS FOLLOW-ON INSPECTION OF THE DEPARTMENT OF ENERGY'S VALUE ENGINEERING PROGRAM DECEMBER 2001 U.S. DEPARTMENT OF ENERGY Washington, DC 20585 December 20, 2001 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman /s/ Inspector General SUBJECT: INFORMATION: Report on "Follow-on Inspection of the Department of Energy's Value Engineering Program" BACKGROUND Value Engineering is a

  8. Principles of models based engineering

    SciTech Connect (OSTI)

    Dolin, R.M.; Hefele, J.

    1996-11-01

    This report describes a Models Based Engineering (MBE) philosophy and implementation strategy that has been developed at Los Alamos National Laboratory`s Center for Advanced Engineering Technology. A major theme in this discussion is that models based engineering is an information management technology enabling the development of information driven engineering. Unlike other information management technologies, models based engineering encompasses the breadth of engineering information, from design intent through product definition to consumer application.

  9. Career Map: Electrical Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Electrical Engineer Career Map: Electrical Engineer Two electrical engineers inspect the electrical components to a turbine. Electrical Engineer Position Title Electrical Engineer Alternate Title(s) Electronics Engineer, Project Engineer, Power Systems, Transmission Engineer Education & Training Level Advanced, bachelor's required, prefer graduate degree Education & Training Level Description Electrical engineers must have a bachelor's degree. Employers also value practical experience,

  10. BEW Engineering | Open Energy Information

    Open Energy Info (EERE)

    Services Product: BEW Engineering provides engineering consulting services, and performs research and development in electrical power systems for bulk power and distributed energy...

  11. Visual Engineering | The Ames Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    other engineering products. In addition, Mark Bryden and Doug McCorkle, along with collaborators at NETL and Reaction Engineering International have developed open-source software...

  12. Taitem Engineering | Open Energy Information

    Open Energy Info (EERE)

    Taitem Engineering Jump to: navigation, search Name: Taitem Engineering Place: Ithaca, NY Information About Partnership with NREL Partnership with NREL Yes Partnership Type "CRADA"...

  13. Pract Engineering | Open Energy Information

    Open Energy Info (EERE)

    Pract Engineering Jump to: navigation, search Name: Pract Engineering Address: 1150 55th Street, Suite C Place: Emeryville, California Zip: 94608 Region: Bay Area Sector: Renewable...

  14. ION Engineering | Open Energy Information

    Open Energy Info (EERE)

    ION Engineering Jump to: navigation, search Name: ION Engineering Place: Boulder, Colorado Zip: 80301 Sector: Carbon Product: ION is the first clean-tech company to successfully...

  15. Windward Engineering | Open Energy Information

    Open Energy Info (EERE)

    Windward Engineering Jump to: navigation, search Name: Windward Engineering Place: Spanish Fork, Utah Zip: 84660 Sector: Wind energy Product: Provides simulations, testing and...

  16. Defining engine efficiency limits

    Broader source: Energy.gov [DOE]

    Investigates the potential to reduce engine efficiency losses and how this impacts the entire system in terms of a direct increase in work output or a change in the loss mechanism.

  17. Student Trainee (General Engineer)

    Broader source: Energy.gov [DOE]

    This position is located in Power Services (P) of the Bonneville Power Administration (BPA). The position involves periods of pertinent formal education and periods of employment in an engineering...

  18. Energy Technology Engineering Center

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Energy Technology Engineering Center (ETEC) is located within Area IV of the Santa Susana Field Laboratory. The ETEC occupies 90-acres within the 290 acre site. The Santa Susana Field...

  19. Civil Engineer (Structural)

    Broader source: Energy.gov [DOE]

    This position is located in Structural Design (TELD). The primary purpose of this position is to serve as a senior engineer responsible for loading, design, and analysis of all structures on BPA's...

  20. INL '@work' Nuclear Engineer

    ScienceCinema (OSTI)

    McLean, Heather

    2013-05-28

    Heather MacLean talks about her job as a Nuclear Engineer for Idaho National Laboratory. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  1. Rotary vee engine

    SciTech Connect (OSTI)

    Sullivan, R.W.; Holder, T.J.; Buchanan, M.F.

    1991-05-14

    This patent describes a rotary vee engine. It comprises: a housing; two cylinder blocks; angled support shaft means; an air/fuel system; angled pistons; and sealing means for sealing the combustion chamber.

  2. Rotary internal combustion engine

    SciTech Connect (OSTI)

    Murray, J.L.; Mosca, J.O.

    1992-02-25

    This patent describes a rotary internal combustion engine. It includes a housing; a cam track internally disposed within the housing and adapted to receive a cam follower; an engine block disposed within the housing, the engine block being relatively rotatable within the housing about a central axis; means connectable to an external drive member for translating the relative rotation of the engine block with respect to the housing into useful work; at least one radially arranged cylinder assembly on the block, each cylinder assembly including a cylinder having a longitudinal axis extending generally radially outwardly from the rotational axis of the block, the cylinder including means defining an end wall, a piston member disposed within the cylinder and adapted to reciprocate within the cylinder; the piston, cylinder and cylinder end wall together.

  3. Information Systems Engineering

    Broader source: Energy.gov [DOE]

    The OCIO is dedicated to supporting the development and maintenance of DOE Department wide and site-specific software and IT systems engineering initiatives.  This webpage contains resources,...

  4. General Engineer (Project Manager)

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Desert Southwest Region Engineering and Construction (G5600) 615 S. 43rd Avenue...

  5. Displacer for Stirling engine

    SciTech Connect (OSTI)

    Brown, A. T.

    1985-12-24

    In a Stirling engine and the like, a displacer piston having a plurality of internal baffles and insulation so as to prevent undesired heat transfer across the displacer piston.

  6. INL '@work' Nuclear Engineer

    SciTech Connect (OSTI)

    McLean, Heather

    2008-01-01

    Heather MacLean talks about her job as a Nuclear Engineer for Idaho National Laboratory. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  7. Science, Technology & Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Alan Bishop selected to lead LANL Science, Technology & Engineering directorate August 17, 2012 LOS ALAMOS, NEW MEXICO, August 17, 2012-Los Alamos National Laboratory Director Charles McMillan announced today that after a yearlong, nationwide search, Alan Bishop has been selected to be the Laboratory's next Principal Associate Director for Science, Technology, and Engineering (PADSTE). Bishop has been acting in that role - 2 - since Aug. 29, 2011.Over the course of a distinguished 30-year

  8. Windmills for ramjet engine

    SciTech Connect (OSTI)

    Giles, H.L.

    1983-01-18

    A solid fueled ramjet engine comprising solid fuel within a combustion chamber in the form of a hollow cylinder, and a windmill at the entrance to the hollow cylinder for promoting better distribution of the air, better mixing of the air and combustion gases, and more complete combustion of the solid fuel. The windmill is turned by the incoming airflow and can rotate a generator to provide a source of electrical power for the aircraft on which the engine is used.

  9. Materials Sciences and Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences and Engineering - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced

  10. Nuclear Power & Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Power & Engineering - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced

  11. Predictive Simulation of Engines

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Predictive Simulation of Engines - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs

  12. Internal combustion engine

    SciTech Connect (OSTI)

    Bernauer, O.

    1980-10-07

    An internal combustion engine is described that has walls delimiting the working space or spaces of the internal combustion engine, in which a hydrogen-impervious, encapsulated metal hydride storage device is provided which is in heat-conducting contact with these walls; the interior of the encapsulation is adapted to be selectively connected to a source of hydrogen and/or to a separate further hydrogen storage device.

  13. Stirling engine power control

    DOE Patents [OSTI]

    Fraser, James P.

    1983-01-01

    A power control method and apparatus for a Stirling engine including a valved duct connected to the junction of the regenerator and the cooler and running to a bypass chamber connected between the heater and the cylinder. An oscillating zone of demarcation between the hot and cold portions of the working gas is established in the bypass chamber, and the engine pistons and cylinders can run cold.

  14. NGNP Engineering Status

    SciTech Connect (OSTI)

    John Collins

    2010-08-01

    The objectives of Phase 1 Engineering and Design scope are to: 1) complete the initial design activities for a prototype nuclear reactor and plant that is capable of co-generating electricity, hydrogen, and process heat; 2) identify technological aspects of the NGNP that need further advancement by research and development activities; and 3) provide engineering support to the early licensing process, including technical input to white papers and developing the basis for future safety analyses.

  15. Publication in Ocean Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Publication in Ocean Engineering - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs

  16. Liquid metal thermoacoustic engine

    SciTech Connect (OSTI)

    Swift, G.W.; Migliori, A.; Wheatley, J.C.

    1986-01-01

    We are studying a liquid metal thermoacoustic engine both theoretically and experimentally. This type of engine promises to produce large quantities of electrical energy from heat at modest efficiency with no moving parts. A sound wave is usually thought of as consisting of pressure oscillations, but always attendant to the pressure oscillation are temperature oscillations. The combination produces a rich variety of ''thermoacoustic'' effects. These effects are usually so small that they are never noticed in everyday life; nevertheless under the right circumstances they can be harnessed to produce powerful heat engines, heat pumps, and refrigerators. In our liquid metal thermoacoustic engine, heat flow from a high temperature source to a low temperature sink generates a high-amplitude standing acoustic wave in liquid sodium. This acoustic power is converted to electric power by a simple magnetohydrodynamic effect at the acoustic oscillation frequency. We have developed a detailed thermoacoustic theory applicable to this engine, and find that a reasonably designed liquid sodium engine operating between 700/sup 0/C and 100/sup 0/C should generate about 60 W/cm/sup 2/ of acoustic power at about 1/3 of Carnot's efficiency. Construction of a 3000 W-thermal laboratory model engine has just been completed, and we have exciting preliminary experimental results as of the time of preparation of this manuscript showing, basically, that the engine works. We have also designed and built a 1 kHz liquid sodium magnetohydrodynamic generator and have extensive measurements on it. It is now very well characterized both experimentally and theoretically. The first generator of its kind, it already converts acoustic power to electric power with 40% efficiency. 16 refs., 5 figs.

  17. Intrinsically irreversible heat engine

    DOE Patents [OSTI]

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  18. Intrinsically irreversible heat engine

    DOE Patents [OSTI]

    Wheatley, John C.; Swift, Gregory W.; Migliori, Albert

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. the second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  19. Intrinsically irreversible heat engine

    DOE Patents [OSTI]

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-12-25

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat. 11 figs.

  20. Engine systems and methods of operating an engine

    SciTech Connect (OSTI)

    Scotto, Mark Vincent

    2015-08-25

    One embodiment of the present invention is a unique method for operating an engine. Another embodiment is a unique engine system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for engines and engine systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

  1. Career Map: Mechanical Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Mechanical Engineer Career Map: Mechanical Engineer A mechanical engineer works with a large yellow robotic arm. Mechanical Engineer Position Title Mechanical Engineer Alternate Title(s) Project Engineer, Quality Engineer, Research Engineer, Design Engineer, Sales Engineer Education & Training Level Advanced, Bachelor's degree required, prefer graduate degree Education & Training Level Description Mechanical engineers need a bachelor's degree. A graduate degree is typically needed for

  2. ARM - Engineering Change Request & Engineering Change Order Guidelines

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Change Request & Engineering Change Order Guidelines Page Contents: Guideline for Starting a Request for a New ARM Product, Capability, or Functionality Engineering Task Tracking Tool Tracking Capabilities Getting Closure, the Baseline Change Request Glossary Engineering Change Request & Engineering Change Order Guidelines Requesting Engineered Products and Services in ARM Guideline for Starting a Request for a New ARM Product, Capability, or Functionality The purpose of this guideline

  3. Advanced Reciprocating Engine Systems (ARES)

    Broader source: Energy.gov [DOE]

    Advanced Natural Gas Reciprocating Engines Increase Efficiency and Reduce Emissions for Distributed Power Generation Applications

  4. The Joys of Nuclear Engineering

    ScienceCinema (OSTI)

    Jon Carmack

    2010-01-08

    Nuclear fuels researcher Jon Carmack talks about the satisfactions of a career in nuclear engineering.

  5. International combustion engines; Applied thermosciences

    SciTech Connect (OSTI)

    Ferguson, C.R.

    1985-01-01

    Focusing on thermodynamic analysis - from the requisite first law to more sophisticated applications - and engine design, this book is an introduction to internal combustion engines and their mechanics. It covers the many types of internal combustion engines, including spark ignition, compression ignition, and stratified charge engines, and examines processes, keeping equations of state simple by assuming constant specific heats. Equations are limited to heat engines and later applied to combustion engines. Topics include realistic equations of state, stroichiometry, predictions of chemical equilibrium, engine performance criteria, and friction, which is discussed in terms of the hydrodynamic theory of lubrication and experimental methods such as dimensional analysis.

  6. Liquid-sodium thermoacoustic engine

    SciTech Connect (OSTI)

    Migliori, A.; Swift, G.W.

    1988-08-01

    We have constructed a thermoacoustic engine that uses liquid sodium as its working substance. The engine generates acoustic power using heat flowing from a high-temperature source to a low-temperature sink. The measured performance of this engine disagrees significantly with numerical calculations based on our theory of thermoacoustic engines. The efficiency of the engine is a substantial fraction of Carnot's efficiency, and its power density is comparable to that of the conventional heat engines in widespread use. Thus we expect this type of engine to be of practical, economic importance.

  7. Single rotor turbine engine

    DOE Patents [OSTI]

    Platts, David A.

    2002-01-01

    There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

  8. Software engineering and graphical programming languages

    SciTech Connect (OSTI)

    Jefferson, K.; Porter, T.; West, T.

    1997-11-01

    This report contains viewgraphs on software engineering and adapting engineering processes to a graphical programming languages.

  9. Gas-Fired Reciprocating Engines

    Broader source: Energy.gov [DOE]

    The reciprocating, or piston-driven, engine is a widespread and well-known technology. Also called internal combustion engines, reciprocating engines require fuel, air, compression, and a combustion source to function. Depending on the ignition source, they generally fall into two categories: (1) spark-ignited engines, typically fueled by gasoline or natural gas, and (2) compression-ignited engines, typically fueled by diesel oil fuel.

  10. Ceramic Automotive Stirling Engine Program

    SciTech Connect (OSTI)

    Not Available

    1986-08-01

    The Ceramic Automotive Stirling Engine Program evaluated the application of advanced ceramic materials to an automotive Stirling engine. The objective of the program was to evaluate the technical feasibility of utilizing advanced ceramics to increase peak engine operating temperature, and to evaluate the performance benefits of such an increase. Manufacturing cost estimates were also developed for various ceramic engine components and compared with conventional metallic engine component costs.

  11. Needle Federated Search Engine

    Energy Science and Technology Software Center (OSTI)

    2009-12-01

    The Idaho National Laboratory (INL) has combined a number of technologies, tools, and resources to accomplish a new means of federating search results. The resulting product is a search engine called Needle, an open-source-based tool that the INL uses internally for researching across a wide variety of information repositories. Needle has a flexible search interface that allows end users to point at any available data source. A user can select multiple sources such as commercialmore » databases (Web of Science, Engineering Index), external resources (WorldCat, Google Scholar), and internal corporate resources (email, document management system, library collections) in a single interface with one search query. In the future, INL hopes to offer this open-source engine to the public. This session will outline the development processes for making Needle™s search interface and simplifying the federation of internal and external data sources.« less

  12. Free-piston engine

    DOE Patents [OSTI]

    Van Blarigan, Peter

    2001-01-01

    A combustion system which can utilize high compression ratios, short burn durations, and homogeneous fuel/air mixtures in conjunction with low equivalence ratios. In particular, a free-piston, two-stroke autoignition internal combustion engine including an electrical generator having a linear alternator with a double-ended free piston that oscillates inside a closed cylinder is provided. Fuel and air are introduced in a two-stroke cycle fashion on each end, where the cylinder charge is compressed to the point of autoignition without spark plugs. The piston is driven in an oscillating motion as combustion occurs successively on each end. This leads to rapid combustion at almost constant volume for any fuel/air equivalence ratio mixture at very high compression ratios. The engine is characterized by high thermal efficiency and low NO.sub.x emissions. The engine is particularly suited for generating electrical current in a hybrid automobile.

  13. Harmonic uniflow engine

    DOE Patents [OSTI]

    Bennett, Charles L.

    2016-03-22

    A reciprocating-piston uniflow engine includes a harmonic oscillator inlet valve capable of oscillating at a resonant frequency for controlling the flow of working fluid into the engine. In particular, the inlet valve includes an inlet valve head and a spring arranged together as a harmonic oscillator so that the inlet valve head is moveable from an unbiased equilibrium position to a biased closed position occluding an inlet. When released, the inlet valve head undergoes a single oscillation past the equilibrium position to a maximum open position and returns to a biased return position close to the closed position to choke the flow and produce a pressure drop across the inlet valve causing the inlet valve to close. In other embodiments, the harmonic oscillator arrangement of the inlet valve enables the uniflow engine to be reversibly operated as a uniflow compressor.

  14. Externally heated valve engine -- An alternative to the Stirling engine

    SciTech Connect (OSTI)

    Kazimierski, Z.; Brzeski, L.

    1996-12-31

    A new concept of the Externally Heated Valve (EHV) engine is presented. The principle of the engine operation is described in the introduction to the paper. Heat delivered to the working medium (air) in the heater, or several heaters working commutatively, can come from a combustion chamber or other heat generator such as nuclear reactors or solar collectors. The engine construction is original entirely different from the well-known Stirling engine. New results of the EHV engine computer modeling are presented. This is connected with a new kind of the annular heater applied to the EHV engine. A whirl motion inside the heater is caused to ensure the proper condition of the heat exchanger during the whole engine cycle. Three heaters working commutatively have been considered in this model. Comparisons between the power and efficiency of the Stirling engine and EHV engine have been performed for the same engine capacity, rotational frequency, maximum and minimum temperatures of the working gas and for the same mean pressures of both the engine cycles. The power of the EHV engine is in this case over three times higher than the Stirling engine power, while the efficiency of both the engines is almost the same.

  15. Rotary internal combustion engine

    SciTech Connect (OSTI)

    Murray, J.L.

    1993-07-20

    A multi bank power plant is described comprising at least a first and a second rotary internal combustion engine connectable together in series, each of the engines comprising: a housing; a cam track internally disposed within the housing and adapted to receive a cam follower; an engine block disposed within the housing and rotatable about a central axis; an output shaft extending axially from each the engine block, each output shaft being coaxial with the other; means for coupling the output shafts together so that the output shafts rotate together in the same direction at the same speed; at least one radially arranged cylinder assembly on each block, each cylinder assembly including a cylinder having a longitudinal axis extending generally radially outwardly from the rotational axis of the block, the cylinder including means defining an end wall, a piston member disposed within the cylinder and adapted to reciprocate within the cylinder; a combustion chamber, means permitting periodic introduction of air and fuel into the combustion chamber, means for causing combustion of a compressed mixture of air and fuel within the combustion chamber, means permitting periodic exhaust of products of combustion of air and fuel from the combustion chamber, and means for imparting forces and motions of the piston within the cylinder to and from the cam track, the means comprising a cam follower operatively connected to the piston; wherein the cam track includes at least a first segment and at least a second segment thereof, the first segment having a generally positive slope wherein the segment has a generally increasing radial distance from the rotational axis of the engine block whereby as a piston moves outwardly in a cylinder on a power stroke while the cam follower is in radial register with the cam track segment, the reactive force of the respective cam follower against the cam track segment acts in a direction tending to impart rotation to the engine block.

  16. Rotary engine research

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    A development history is presented for NASA's 1983-1991 Rotary Engine Enablement Program, emphasizing the CFD approaches to various problems that were instituted from 1987 to the end of the program. In phase I, a test rig was built to intensively clarify and characterize the stratified-charge rotary engine concept. In phase II, a high pressure, electronically controlled fuel injection system was tested. In phase III, the testing of improved fuel injectors led to the achievement of the stipulated 5 hp/cu inch specific power goal. CFD-aided design of advanced rotor-pocket shapes led to additional performance improvements.

  17. Career Map: Design Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Design Engineer Career Map: Design Engineer A product designer watches as several engineers work on a wind turbine component. Design Engineer Position Title Design Engineer Alternate Title(s) Materials Engineer, Composite Engineer, Product Designer, Structural Engineer Education & Training Level Bachelor's degree required, graduate degree preferred Education & Training Level Description Design engineers typically hold a bachelor's degree or higher in electrical or mechanical engineering

  18. E-Alerts: Combustion, engines, and propellants (reciprocation and rotating combustion engines). E-mail newsletter

    SciTech Connect (OSTI)

    1999-04-01

    Design, performance, and testing of reciprocating and rotating engines of various configurations for all types of propulsion. Includes internal and external combustion engines; engine exhaust systems; engine air systems components; engine structures; stirling and diesel engines.

  19. Rotary engine cooling system

    SciTech Connect (OSTI)

    Jones, C.

    1988-07-26

    A rotary internal combustion engine is described comprising: a rotor housing forming a trochoidal cavity therein; an insert of refractory material received in the recess, an element of a fuel injection and ignition system extending through the housing and insert bores, and the housing having cooling passages extending therethrough. The cooling passages are comprised of drilled holes.

  20. Internal combustion engine

    SciTech Connect (OSTI)

    Perrin, G.; Bergmann, H.

    1984-06-12

    An externally auto-ignited four-stroke internal combustion engine which includes a combustion chamber disposed in an upper surface of a piston such that, in an upper dead-center position of the piston, the combustion chamber receives almost all of the fuel-air mixture. The combustion chamber includes a planar bottom portion and has a cross-sectional shape of a truncated cone expanding in a direction of the cylinder head. The internal combustion engine also includes a recess or depression provided in the cylinder head and disposed eccentrically with respect to a longitudinal center axis of the cylinder. The depression or recess in the cylinder head has the shape of a truncated cone expanding in a direction of the piston, with a spark plug projecting or penetrating into the recess or depression in the cylinder head. In order to enable the achievement of good combustion, increased overall engine performance, and the minimum amount of harmful components in the exhaust gases from the engine when different types of fuel are used, predetermined constructional parameters are selected with respect to the combustion chamber and recess or depression disposed above the combustion chamber as well as the disposition of the combustion chamber with respect to a longitudinal center axis of the cylinder.

  1. Starting of turbine engines

    SciTech Connect (OSTI)

    Shekleton, J.R.

    1990-05-01

    This patent describes a relatively small turbine engine. It comprises: a rotary turbine wheel; a rotary compressor coupled to the turbine wheel; an annular combustor for receiving air from the compressor and fuel from a fuel source combusting the same and providing gases of combustion to the turbine wheel to drive the same; substantially identical main fuel injectors including fuel injecting nozzles angularly spaced about the compressor; fuel and air from the compressor being introduced into the combustor generally in the tangential direction; a fuel pump; a control schedule valve; and first and second main fuel solenoid valves. The first valve being operable to connect a minority of the injectors to the control schedule valve and the fuel pump for starting the engine, there being an even number of the injectors and the minority of injectors consisting of two diametrically opposite injectors; the first and second valves being operable to connect all of the injectors to the control schedule valve and the pump for causing normal operation of the engine; the engine further being characterized by the absence of start fuel injectors for the combustor.

  2. Rotary internal combustion engine

    SciTech Connect (OSTI)

    Le, L.K.

    1990-11-20

    This patent describes an internal combustion engine comprising; a rotary compressor mechanism; a rotary expander mechanism; and combustion chamber means disposed between the compressor mechanism and the expander mechanism, whereby compressed air is delivered to the combustion chamber through the compressor discharge port, and pressurized gas is delivered from the combustion chamber into the expander mechanism through the pressurized gas intake port.

  3. Engineering Annual Summary 1996

    SciTech Connect (OSTI)

    Dimolitsas, S.

    1997-04-30

    Fiscal year 1996 has been a year of significant change for the Lawrence Livermore National Laboratory (LLNL) in general and for Engineering in particular. Among these changes, the Laboratory`s national security mission was better defined, the stockpile stewardship program objectives became crisper, LLNL`s investment in high-performance computing was re-emphasized with the procurement of a $100 million supercomputer for the Laboratory`s Accelerated Strategic Computing Initiative (ASCI) program, two major Laser programs (the National Ignition Facility and Atomic Vapor Laser Isotope Separation) expanded significantly, and DOE`s human genome efforts moved to the next phase of development. In the area of business operations, LLNL`s Cost Cutting Initiative Program (CCIP) was completed and the Laboratory restructured its workforce using a Voluntary Separation Incentive Program (VSIP). Engineering similarly also saw many technical and programmatic successes, as well as changes, starting with completion of its strategic plan, significant consolidation of its facilities, restructuring of its workforce, reduction of its overhead costs, substantial transfers of staff between programs, and finally my personal arrival at Livermore. This report is the first opportunity to capture some of Engineering`s FY96 activities and accomplishments in a succinct fashion, and to relate these to our strategic plan.

  4. DOE Systems Engineering Methodology

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Systems Engineering Methodology (SEM) Computer System Retirement Guidelines Version 3 September 2002 U.S. Department of Energy Office of the Chief Information Officer Computer System Retirement Guidelines Date: September 2002 Page 1 Rev Date: Table of Contents Section Page Purpose ............................................................................................................................................ 2 Initiation and Distribution

  5. Thermoacoustic engines and refrigerators

    SciTech Connect (OSTI)

    Swift, G.W.

    1995-07-01

    We ordinarily think of a sound wave in a gas as consisting of coupled pressure and displacement oscillations. However, temperature oscillations always accompany the pressure changes. The combination of all these oscillations, and their interaction with solid boundaries, produces a rich variety of `thermoacoustic` effects. Although these effects as they occur in every-day life are too small to be noticed, one can harness extremely loud sound waves in acoustically sealed chambers to produce powerful heat engines, heat pumps and refrigerators. Whereas typical engines and refrigerators have crankshaft-coupled pistons or rotating turbines, thermoacoustic engines and refrigerators have at most a single flexing moving part (as in a loudspeaker) with no sliding seals. Thermoacoustic devices may be of practical use where simplicity, reliability or low cost is more important than the highest efficiency (although one cannot say much more about their cost-competitiveness at this early stage). This paper discusses the fundamentals of thermoacoustic engines and refrigerators, research in this field, and their commercial development. 16 refs., 5 figs.

  6. Supervisory Interdisciplinary Civil Engineer/Electrical Engineer (0810/0850)

    Broader source: Energy.gov [DOE]

    THIS IS AN INTERDISCIPLINARY POSITION AND MAY BE FILLED WITH ANY OF THE FOLLOWING OCCUPATIONS: Supervisory Civil Engineer, GS-0810-15 Supervisory Electrical Engineer, GS-0850-15 This position is...

  7. Clinton Engineer Works map | Y-12 National Security Complex

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Clinton Engineer Works map Clinton Engineer Works map

  8. Free-piston Stirling engine

    SciTech Connect (OSTI)

    Berggren, R.W.; Moynihan, T.M.

    1982-09-01

    A free-piston Stirling engine/linear alternator system (FPSE-010-3), developed under previous Department of Energy (DOE) funding, has been used as a test bed for evaluating selected Stirling engine loss mechanisms. The engine is particularly suited to test-bed operation because engine performance can be evaluated over a wide range of operating conditions; system instrumentation is capable of measuring the effects of system component changes; and modular engine design facilitates the evaluation of alternate component configurations. Extensive testing was performed to establish the operating characteristics of a base-line engine configuration and to characterize specific losses within a Stirling engine. Significant variations in engine performance were observed as the displacer seal clearance was varied. This paper presents selected results from the base-line and displacer seal clearance tests.

  9. Sandia Engineer at Heliostat Field

    Broader source: Energy.gov [DOE]

    This photograph features Clifford Ho, an engineer at Sandia National Laboratories, who stands below Sandia's solar heliostat field. The Chinese Institute of Engineers-USA selected Ho as its Asian...

  10. Understanding Stirling engines. Technical paper

    SciTech Connect (OSTI)

    Beale, W.

    1984-01-01

    The paper describes the basic Stirling engine, as well as some of the most promising modern varieties. The intent is to familiarize people in developing countries with the engine's operation and range of applications.

  11. Argonne National Laboratory's Omnivorous Engine

    SciTech Connect (OSTI)

    Thomas Wallner

    2009-10-16

    Why can't an engine run on any fuel? Argonne is designing an omnivorous engine that can run on any blend of gasoline, ethanol or butanoland calibrate itself to burn that fuel most efficiently.

  12. Argonne National Laboratory's Omnivorous Engine

    ScienceCinema (OSTI)

    Thomas Wallner

    2010-01-08

    Why can't an engine run on any fuel? Argonne is designing an omnivorous engine that can run on any blend of gasoline, ethanol or butanol?and calibrate itself to burn that fuel most efficiently.

  13. Career Map: Aerospace Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Aerospace Engineer Career Map: Aerospace Engineer An aerospace engineer stands in front of a drivetrain testing machine. Aerospace Engineer Position Title Aerospace Engineer Alternate Title(s) Aeronautical Engineer Education & Training Level Advanced, Bachelor's required, prefer graduate degree Education & Training Level Description Aerospace engineers must have a bachelor's degree in aerospace engineering or another field of engineering or science related to aerospace systems. Brief job

  14. Career Map: Project Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Project Engineer Career Map: Project Engineer project_engineer.jpg Project Engineer Position Title Project Engineer Alternate Title(s) Construction Engineer, Project Development Engineer Education & Training Level Advanced, Bachelors required Education & Training Level Description Project engineers usually have a bachelor's degree in mechanical, aerospace or electrical engineering. They may also have a degree in other technical disciplines or construction management. Employers also value

  15. Engineering | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineering NNSA uses modern tools and capabilities in the engineering sciences field which are needed to ensure the safety, security, reliability and performance of the current and future U.S. nuclear weapons stockpile. It also provides the solid and sustained engineering basis for stockpile certification and assessments that are needed throughout the entire lifecycle of each weapon. NNSA develops capabilities to assess and improve the engineering components of both the non-nuclear and nuclear

  16. Internal combustion engine

    DOE Patents [OSTI]

    Baker, Quentin A.; Mecredy, Henry E.; O'Neal, Glenn B.

    1991-01-01

    An improved engine is provided that more efficiently consumes difficult fuels such as coal slurries or powdered coal. The engine includes a precombustion chamber having a portion thereof formed by an ignition plug. The precombustion chamber is arranged so that when the piston is proximate the head, the precombustion chamber is sealed from the main cylinder or the main combustion chamber and when the piston is remote from the head, the precombustion chamber and main combustion chamber are in communication. The time for burning of fuel in the precombustion chamber can be regulated by the distance required to move the piston from the top dead center position to the position wherein the precombustion chamber and main combustion chamber are in communication.

  17. Advanced engineering analysis

    SciTech Connect (OSTI)

    Freeman, W.R.

    1992-11-01

    The Advanced Engineering Analysis project is being used to improve the breadth of engineering analysis types, the particular phenomena which may be simulated, and also increase the accuracy and usability of the results of both new and current types of simulations and analyses. This is an interim report covering several topics under this project. Information on two new implementations of failure criteria for metal forming, the implementation of coupled fluid flow/heat transfer analysis capabilities, the integration of experimental shock and vibration test data with analyses, a correction to a contact solution problem with a 3-D parabolic brick finite element, and the development and implementation of a file translator to link IDEAS to DYNA3D is provided in this report.

  18. Electrochemical heat engine

    DOE Patents [OSTI]

    Elliott, Guy R. B.; Holley, Charles E.; Houseman, Barton L.; Sibbitt, Jr., Wilmer L.

    1978-01-01

    Electrochemical heat engines produce electrochemical work, and mechanical motion is limited to valve and switching actions as the heat-to-work cycles are performed. The electrochemical cells of said heat engines use molten or solid electrolytes at high temperatures. One or more reactions in the cycle will generate a gas at high temperature which can be condensed at a lower temperature with later return of the condensate to electrochemical cells. Sodium, potassium, and cesium are used as the working gases for high temperature cells (above 600 K) with halogen gases or volatile halides being used at lower temperature. Carbonates and halides are used as molten electrolytes and the solid electrolyte in these melts can also be used as a cell separator.

  19. BGA Engineering LLC | Open Energy Information

    Open Energy Info (EERE)

    search Name: BGA Engineering LLC Place: Glen Rock, New Jersey Zip: 7452 Sector: Solar Product: Engineering firm specialising in substation engineering and design, power plant...

  20. Mechanical Engineer | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineer Department: Engineering Supervisor(s): Bill Blanchard Staff: EM 3 Requisition Number: 1500 The Mechanical Design Engineer will develop, design, manufacture, and test ...

  1. Instrumentation & Controls Electrical Engineer | Princeton Plasma...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Instrumentation & Controls Electrical Engineer Department: Engineering Supervisor(s): Tim ... Perform role of COG engineer in PMO system to perform project management jobs. Generates ...

  2. Tasco Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Tasco Engineering Inc Jump to: navigation, search Name: Tasco Engineering Inc Place: Lehi, Utah Zip: 84043 Sector: Hydro, Solar, Wind energy Product: Power engineering firm with...

  3. Calypso Engineering Srl | Open Energy Information

    Open Energy Info (EERE)

    Calypso Engineering Srl Jump to: navigation, search Name: Calypso Engineering Srl Place: Albino, Italy Sector: Services, Wind energy Product: Develops and provides engineering...

  4. Atlanta Chemical Engineering LLC | Open Energy Information

    Open Energy Info (EERE)

    Atlanta Chemical Engineering LLC Jump to: navigation, search Logo: Atlanta Chemical Engineering LLC Name: Atlanta Chemical Engineering LLC Place: Marietta, Georgia Country: United...

  5. Vehicle Technologies Office: 2014 Advanced Combustion Engine...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2014 Advanced Combustion Engine Annual Progress Report Vehicle Technologies Office: 2014 Advanced Combustion Engine Annual Progress Report The Advanced Combustion Engine research...

  6. Hydrogen Engine Center HEC | Open Energy Information

    Open Energy Info (EERE)

    Engine Center HEC Jump to: navigation, search Name: Hydrogen Engine Center (HEC) Place: Algona, Iowa Zip: IA 50511 Sector: Hydro, Hydrogen Product: The Hydrogen Engine Center (HEC)...

  7. Advanced Natural Gas Reciprocating Engines (ARES) - Presentation...

    Broader source: Energy.gov (indexed) [DOE]

    Advanced Reciprocating Engine System (ARES) Advanced Natural Gas Reciprocating Engines (ARES) - Presentation by Dresser Waukesha, June 2011 Integration of Diesel Engine Technology ...

  8. Multicylinder compound engine

    SciTech Connect (OSTI)

    Paul, M.A.; Paul, A.

    1990-10-23

    This patent describes a compound, rotary-reciprocal engine. It comprises: a two-cycle reciprocator having cylinders, each cylinder having at least one piston arranged for reciprocation in the cylinder in a cycled operation with a timed air input to the cylinder and a timed exhaust from the cylinder; a compressed air intake and combustion gas exit in each cylinder of the reciprocator; fuel injection means for injecting fuel into the cylinders at appropriate times in the cycled operation; and, a rotocharger.

  9. Photonically Engineered Incandescent Emitter

    DOE Patents [OSTI]

    Gee, James M.; Lin, Shawn-Yu; Fleming, James G.; Moreno, James B.

    2005-03-22

    A photonically engineered incandescence is disclosed. The emitter materials and photonic crystal structure can be chosen to modify or suppress thermal radiation above a cutoff wavelength, causing the emitter to selectively emit in the visible and near-infrared portions of the spectrum. An efficient incandescent lamp is enabled thereby. A method for fabricating a three-dimensional photonic crystal of a structural material, suitable for the incandescent emitter, is also disclosed.

  10. Ram jet engine

    SciTech Connect (OSTI)

    Crispin, B.; Pohl, W.D.; Thomaier, D.; Voss, N.

    1983-11-29

    In a ram jet engine, a tubular combustion chamber is divided into a flame chamber followed by a mixing chamber. The ram air is supplied through intake diffusers located on the exterior of the combustion chamber. The intake diffusers supply combustion air directly into the flame chamber and secondary air is conveyed along the exterior of the combustion chambers and then supplied directly into the mixing chamber.

  11. MARS Flight Engineering Status

    SciTech Connect (OSTI)

    Fast, James E.; Dorow, Kevin E.; Morris, Scott J.; Thompson, Robert C.; Willett, Jesse A.

    2010-04-06

    The Multi-sensor Airborne Radiation Survey Flight Engineering project (MARS FE) has designed a high purity germanium (HPGe) crystal array for conducting a wide range of field measurements. In addition to the HPGe detector system, a platform-specific shock and vibration isolation system and environmental housing have been designed to support demonstration activities in a maritime environment on an Unmanned Surface Vehicle (USV). This report describes the status of the equipment as of the end of FY09.

  12. Science, Technology, and Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    PADSTE Science, Technology, and Engineering Delivering mission success and innovative solutions to national security problems through the agile, rapid application of our transformational scientific capabilities Bird's eye view of a hot cell where the isotopes are separated and purified The quest for an imaging radioisotope READ MORE Molecular clocks in human cells Molecular clocks control mutation rate in human cells READ MORE Glen Wurden in the stellarator's vacuum vessel during camera

  13. The ESnet Engineering Team

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fasterdata IPv6 Network Network Performance Tools The ESnet Engineering Team Network R&D Software-Defined Networking (SDN) Experimental Network Testbeds Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies News & Publications ESnet News Publications and Presentations Galleries ESnet Awards and Honors Blog ESnet Live Home »

  14. Stirling cycle engine

    DOE Patents [OSTI]

    Lundholm, Gunnar

    1983-01-01

    In a Stirling cycle engine having a plurality of working gas charges separated by pistons reciprocating in cylinders, the total gas content is minimized and the mean pressure equalization among the serial cylinders is improved by using two piston rings axially spaced at least as much as the piston stroke and by providing a duct in the cylinder wall opening in the space between the two piston rings and leading to a source of minimum or maximum working gas pressure.

  15. Modular Aneutronic Fusion Engine

    SciTech Connect (OSTI)

    Gary Pajer, Yosef Razin, Michael Paluszek, A.H. Glasser and Samuel Cohen

    2012-05-11

    NASA's JUNO mission will arrive at Jupiter in July 2016, after nearly five years in space. Since operational costs tend to rise with mission time, minimizing such times becomes a top priority. We present the conceptual design for a 10MW aneutronic fusion engine with high exhaust velocities that would reduce transit time for a Jupiter mission to eighteen months and enable more challenging exploration missions in the solar system and beyond. __________________________________________________

  16. Photonically engineered incandescent emitter

    DOE Patents [OSTI]

    Gee, James M.; Lin, Shawn-Yu; Fleming, James G.; Moreno, James B.

    2003-08-26

    A photonically engineered incandescence is disclosed. The emitter materials and photonic crystal structure can be chosen to modify or suppress thermal radiation above a cutoff wavelength, causing the emitter to selectively emit in the visible and near-infrared portions of the spectrum. An efficient incandescent lamp is enabled thereby. A method for fabricating a three-dimensional photonic crystal of a structural material, suitable for the incandescent emitter, is also disclosed.

  17. Cleaner, More Efficient Diesel Engines

    ScienceCinema (OSTI)

    Musculus, Mark

    2014-02-26

    Mark Musculus, an engine combustion scientist at Sandia National Laboratories, led a study that outlines the science base for auto and engine manufacturers to build the next generation of cleaner, more efficient engines using low-temperature combustion. Here, Musculus discusses the work at Sandia's Combustion Research Facility.

  18. Cleaner, More Efficient Diesel Engines

    SciTech Connect (OSTI)

    Musculus, Mark

    2013-08-13

    Mark Musculus, an engine combustion scientist at Sandia National Laboratories, led a study that outlines the science base for auto and engine manufacturers to build the next generation of cleaner, more efficient engines using low-temperature combustion. Here, Musculus discusses the work at Sandia's Combustion Research Facility.

  19. Gaseous-fuel engine technology

    SciTech Connect (OSTI)

    1995-12-31

    This publication contains three distinct groups of papers covering gaseous-fuel injection and control, gaseous-fuel engine projects, and gaseous-fuel engine/vehicle applications. Contents include: ultra rapid natural gas port injection; a CNG specific fuel injector using latching solenoid technology; development of an electronically-controlled natural gas-fueled John Deere PowerTech 8.1L engine; adapting a Geo Metro to run on natural gas using fuel-injection technology; behavior of a closed loop controlled air valve type mixer on a natural gas fueled engine under transient operation; and a turbocharged lean-burn 4.3 liter natural gas engine.

  20. Environmental, safety, and health engineering

    SciTech Connect (OSTI)

    Woodside, G.; Kocurek, D.

    1997-12-31

    A complete guide to environmental, safety, and health engineering, including an overview of EPA and OSHA regulations; principles of environmental engineering, including pollution prevention, waste and wastewater treatment and disposal, environmental statistics, air emissions and abatement engineering, and hazardous waste storage and containment; principles of safety engineering, including safety management, equipment safety, fire and life safety, process and system safety, confined space safety, and construction safety; and principles of industrial hygiene/occupational health engineering including chemical hazard assessment, personal protective equipment, industrial ventilation, ionizing and nonionizing radiation, noise, and ergonomics.

  1. Honda motor company's CVCC engine

    SciTech Connect (OSTI)

    Abernathy, W.J.; Ronan, L.

    1980-07-01

    Honda Motor Company of Japan in a four-year period from 1968 to 1872 designed, tested, and mass-produced a stratified charge engine, the CVCC, which in comparison to conventional engines of similar output at the time was lower in CO, HC and NO/sub x/ emissions and higher in fuel economy. Honda developed the CVCC engine without government assistance or outside help. Honda's success came at a time when steadily increasing fuel costs and the various provisions of the Clean Air Act had forced US automakers to consider possible alternatives to the conventional gasoline engine. While most major engine manufacturers had investigated some form of stratified charge engine, Honda's CVCC was the only one to find successful market application. This case study examines the circumstances surrounding the development of the CVCC engine and its introduction into the Japanese and American markets.

  2. Optimization of Advanced Diesel Engine Combustion Strategies...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Optimization of Advanced Diesel Engine Combustion Strategies Optimization of Advanced Diesel Engine Combustion Strategies Computational Fluid Dynamics ...

  3. Interdisciplinary General Engineer/Physical Scientist (Facility...

    Office of Environmental Management (EM)

    Interdisciplinary General EngineerPhysical Scientist (Facility Representative) Interdisciplinary General EngineerPhysical Scientist (Facility Representative) Submitted by admin ...

  4. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Turbocharged Direct Injection (GTDI) Engine Development Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine ...

  5. Integrated Computational Materials Engineering (ICME) for Mg...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Integrated Computational Materials Engineering (ICME) for Mg: International Pilot Project Integrated Computational Materials Engineering (ICME) for ...

  6. China National Machinery Industry Complete Engineering Corporation...

    Open Energy Info (EERE)

    Industry Complete Engineering Corporation CMCEC Jump to: navigation, search Name: China National Machinery Industry Complete Engineering Corporation (CMCEC) Place: Beijing,...

  7. Analysis Activities at Idaho National Engineering & Environmental...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Activities at Idaho National Engineering & Environmental Laboratory Analysis Activities at Idaho National Engineering & Environmental Laboratory Presentation on INEENL's analysis ...

  8. Fire Protection Engineering Functional Area Qualification Standard

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    FIRE PROTECTION ENGINEERING FUNCTIONAL AREA QUALIFICATION STANDARD DOE Defense Nuclear Facilities Technical ... by applied engineering fundamentals, research, fire hazard ...

  9. Thermoacoustic refrigerators and engines comprising cascading...

    Office of Scientific and Technical Information (OSTI)

    Thermoacoustic refrigerators and engines comprising cascading stirling thermodynamic units Title: Thermoacoustic refrigerators and engines comprising cascading stirling ...

  10. Engineering Molecular Transformations for Sustainable Energy...

    Office of Scientific and Technical Information (OSTI)

    Engineering Molecular Transformations for Sustainable Energy Conversion Citation Details In-Document Search Title: Engineering Molecular Transformations for Sustainable Energy ...

  11. Career Map: Civil Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Civil Engineer Career Map: Civil Engineer A civil engineer wearing a safety vest and hard hat stands in front of a wind turbine. Civil Engineer Position Title Civil Engineer Alternate Title(s) Engineer Education & Training Level Bachelors required, prefer graduate degree Education & Training Level Description Civil engineers need a bachelor's degree. They typically need a graduate degree for promotion to managerial positions. Civil engineers who sell their own services publicly must be

  12. Career Map: Engineering Manager | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engineering Manager Career Map: Engineering Manager Two engineering managers wearing hard hats inspect a wind component. Engineering Manager Position Title Engineering Manager Alternate Title(s) n/a Education & Training Level Bachelor's degree in relevant engineering discipline required Education & Training Level Description Engineering managers typically have at least a bachelor's degree and significant work experience. Brief job description The engineering manager plans, coordinates,

  13. Career Map: Sales Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sales Engineer Career Map: Sales Engineer Several sales engineers collaborate on a project using a tablet. Sales Engineer Position Title Sales Engineer Alternate Title(s) Technical Sales Engineer, Senior Sales Executive, Vice President of Sales, Key Account Manager Education & Training Level Bachelors required, prefer graduate degree Education & Training Level Description Sales engineers typically need a bachelor's degree in engineering or a related field. Brief job description Sales

  14. Stratified cross combustion engine

    SciTech Connect (OSTI)

    Rhoads, J.L.

    1981-06-23

    A piston engine is provided in which adjacent cylinder pairs share a common combustion chamber and the pistons are mounted to reciprocate substantially in phase, one of the pistons in each piston pair receiving a rich mixture which is ignited by a sparkplug in that cylinder, with the other cylinder in the cylinder pair being passive in its preferred form, and receiving through a separate intake valve either pure air or a leaner mixture into which the combusted richer mixture pours, insuring that the greatest combustion possible resulting in the greatest percentage of carbon dioxide formation as opposed to carbon monoxide is created.

  15. Acoustical heat pumping engine

    DOE Patents [OSTI]

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1983-08-16

    The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium. 2 figs.

  16. Acoustical heat pumping engine

    DOE Patents [OSTI]

    Wheatley, John C.; Swift, Gregory W.; Migliori, Albert

    1983-08-16

    The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.

  17. A loaded thermoacoustic engine

    SciTech Connect (OSTI)

    Olson, J.R.; Swift, G.W.

    1995-11-01

    Measurements and analysis of the performance of a thermoacoustic engine driving a dissipative load are presented. The effect of the load can be explained qualitatively using a simple low-amplitude approximation and quantitatively by invoking a more accurate low-amplitude numerical solution. The heater power {ital @};DQ and hot-end temperature {ital T}{sub {ital H}} are found to be simple functions of the load impedance and the unloaded values of {ital @};DQ and {ital T}{sub {ital H}}. {copyright} {ital 1995} {ital Acoustical} {ital Society} {ital of} {ital America}.

  18. HANFORD ENGINEER WORKS

    Office of Legacy Management (LM)

    HANFORD ENGINEER WORKS IJd *P-t - - ~~~ssiticatiC+n cwcetted rat G.E. NUCLEONICS PROJECT xi I ~@L.%&~--G-ENERAI,@ ELECTRIC z ,m ._.__.-. _ I--..-. By Authority of. COMPANY ._ Atmic Energy Commission Office of Hanford Dire&xl Operations Riohland, Washington Attention; Mr. Carleton Shugg, Manager ./ ALPKA-ROLLED EL'GIL%I jw -879 ' . *_ a. f' Richland, Washington February 6, 1948 , Thla Dclc.Jv-<en! :-; . ' - -*...-- f_ ~~~.s No .__. ._. .s / ~. - J-LccIp%. Fr:*? fi This will con&rm

  19. Knock-free engine control system for turbocharged automotive engine

    SciTech Connect (OSTI)

    Hirabayashi, Y.

    1985-04-09

    In a turbocharged internal combustion engine, in order to optimize engine torque output spark timing control and boost pressure control are coordinated in such a manner that spark advance angle is adjusted only when the measured boost pressure equals a predetermined value and is allowed to vary only within a specified range advanced from a reference value derived from an empirical memory table on the basis of engine speed and boost pressure. When engine operating conditions are such that spark advance angle would fall outside of the specified range, spark advance angle is then held at the empirical value and boost pressure is adjusted in order to optimize engine torque. The coordinated control system can also be designed to respond to exhaust gas temperature on a first-priority basis, i.e., when exhaust temperature is sensed to be dangerously high, boost pressure is reduced regardless of other engine conditions.

  20. Climate Engineering with Stratospheric Aerosols and Associated Engineering Parameters

    SciTech Connect (OSTI)

    Kravitz, Benjamin S.

    2013-02-12

    Climate engineering with stratospheric aerosols, an idea inspired by large volcaniceruptions, could cool the Earth’s surface and thus alleviate some of the predicted dangerous impacts of anthropogenic climate change. However, the effectiveness of climate engineering to achieve a particular climate goal, and any associated side effects, depend on certain aerosol parameters and how the aerosols are deployed in the stratosphere. Through the examples of sulfate and black carbon aerosols, this paper examines "engineering" parameters-aerosol composition, aerosol size, and spatial and temporal variations in deployment-for stratospheric climate engineering. The effects of climate engineering are sensitive to these parameters, suggesting that a particle could be found ordesigned to achieve specific desired climate outcomes. This prospect opens the possibility for discussion of societal goals for climate engineering.

  1. Rotary engine and method

    SciTech Connect (OSTI)

    Overman, K.

    1991-12-17

    This paper describes a rotary engine. It comprises: an engine block, the block defining an internal rotor cavity, a rotor, the rotor eccentrically positioned within the cavity, the block defining a combustion chamber, the combustion chamber positioned exteriorly of the rotor cavity and in fluid communication therewith, a pair of pistons, the pistons affixed to each other and slidably mounted within the rotor, an air inlet valve, the inlet valve positioned at one side of the combustion chamber, a dual acting outlet valve, the outlet valve comprising a top and a bottom rest, the outlet valve positioned at the other side of the combustion chamber, the combustion chamber defining both an outlet valve ceiling port and an outlet valve floor port, means to ignite fuel, the fuel ignition means located within the combustion chamber between the inlet and outlet valves, the block defining an exhaust port, the exhaust port spaced circumferentially from the combustion chamber and in fluid communication with the rotor cavity, the block defining an inlet port, and the inlet port circumfrentially spaced from the outlet port and in fluid communication with the rotor cavity.

  2. Rotary vee engine

    SciTech Connect (OSTI)

    Sullivan, R.W.; Holder, T.J.; Buchanan, M.F.

    1991-07-09

    This patent describes a rotary vee engine. It comprises a housing having outer ends; two cylinder blocks each having inner and outer ends and mounted in the housing for rotation of one cylinder block about a first rotational axis and rotation of the other cylinder block about a second rotational axis, the axes being angled to intersect adjacent the inner ends of the blocks at an included angle less than one hundred and eighty degrees; each cylinder bloc having cylinders positioned at a selected radial distance from the respective rotational axis and extending parallel to the axis to intersect the inner end of the cylinder block; angled pistons each having a portion disposed in a cylinder of one block and a portion disposed in a cylinder in the other block for orbital motion of the pistons coordinately with the rotation of the cylinder blocks; angled support shaft means for rotatably and axially supporting each of the cylinder blocks in the housing; an improved air/fuel system for directing pressurized charges of air/fuel mixture radially inwardly into each of the cylinders during the operation of the engine comprising; a central cavity formed by the housing between the inner ends of the cylinder blocks for receiving air/fuel mixture.

  3. Rotary reciprical combustion engines

    SciTech Connect (OSTI)

    Blount, D.H.

    1992-10-20

    This patent describes a rotary-reciprocal combustion engine having a cycle which includes the four strokes of intake, compression, expansion and exhaustion, the engine. It comprises: a housing formed with a peripheral wall with side walls, a rotor in the housing, the inner surface of the peripheral inner wall being cylindrical; a shaft; mounted in the center of the housing, passing through the rotor's hub and extending through the side walls of the housing, the hub having means to allow the rotor to reciprocate on the shaft while the shaft is rotating with the rotor; a reciprocal and rotary guide having means to guide the rotary and reciprocal motions of the rotor while keeping the rotor's piston in continuous sealing contact with the cylinder chamber walls and varying the volume of the cylinder chambers enabling a compression of a gaseous mixture to take place after aspirating a gaseous mixture; an ignition system having means for igniting compressed gaseous mixture and expansion of the cylinder chambers due to pressure of the combustion products.

  4. Supervisory Electrical Engineer- Supervisory Power System Real Time Electrical Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Power System Operations Operations Engineering, (J4200) 5555...

  5. Pressurized-fluid-operated engine

    SciTech Connect (OSTI)

    Holleyman, J.E.

    1990-01-30

    This patent describes a pressurized-fluid-operated reciprocating engine for providing output power by use of a pressurized gas that expands within the engine without combustion. It comprises: an engine block having a plurality of cylinders within which respective pistons are reciprocatable to provide a rotary power output; gas inlet means connected with the engine block for introducing a pressurized gas into the respective cylinders in a predetermined, timed relationship to provide a smooth power output from the engine; gas outlet means connected with the engine block for conveying exhaust gas from the respective cylinders after the gas expanded to move the pistons within the cylinders; and recirculation means extending between the inlet means and the outlet means for recirculation a predetermined quantity of exhaust gas. The recirculation means including ejector means for drawing exhaust gas into the recirculation means.

  6. Intrinsically irreversible thermoacoustic heat engine

    SciTech Connect (OSTI)

    Wheatley, J.; Hofler, T.; Swift, G.W.; Migliori, A.

    1983-07-01

    Certain thermoacoustic effects are described which form the basis for a heat engine that is intrinsically irreversible in the sense that it requires thermal lags for its operation. After discussing several acoustical heating and cooling effects, including the behavior of a new structure called a ''thermoacoustic couple,'' we discuss structures that can be placed in acoustically resonant tubes to produce both substantial heat pumping effects and, for restricted heat inputs, large temperature differences. The results are analyzed quantitatively using a second-order thermoacoustic theory based on the work of Rott. The qualities of the acoustic engine are generalized to describe a class of intrinsically irreversible heat engines of which the present acoustic engine is a special case. Finally the results of analysis of several idealized intrinsically irreversible engines are presented. These suggest that the efficiency of such engines may be determined primarily by geometry or configuration rather than by temperature.

  7. Discover E for budding engineers

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Discover E for Budding Engineers Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Discover E for budding engineers As part of the annual Discover E event, the wide variety of careers available in engineering is the focus of activities. February 1, 2013 dummy image Read our archives. Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email The event coincides

  8. Mechanical Engineering Department Technical Review

    SciTech Connect (OSTI)

    Carr, R.B.; Denney, R.M.

    1981-07-01

    The Mechanical Engineering Department Technical Review is published to inform readers of various technical activities within the Department, promote exchange of ideas, and give credit to personnel who are achieving the results. The report is presented in two parts: technical achievements and publication abstracts. The first is divided into seven sections, each of which reports on an engineering division and its specific activities related to nuclear tests, nuclear explosives, weapons, energy systems, engineering sciences, magnetic fusion, and materials fabrication.

  9. Engineering Evaluation/Cost Analysis

    Office of Environmental Management (EM)

    THIS PAGE INTENTIONALLY LEFT BLANK Engineered High Energy Crop Programs Final Programmatic Environmental Impact Statement DOE/EIS-0481 JULY 2015 THIS PAGE INTENTIONALLY LEFT BLANK Engineered High Energy Crop Programs Final PEIS Responsible Federal Agency: U.S. Department of Energy, Advanced Research Projects Agency-Energy Cooperating Agencies: U.S. Department of Agriculture, Animal and Plant Health Inspection Service; U.S. Department of Agriculture, Forest Service Title: Engineered High Energy

  10. ARM - Datastreams - aeri01engineer

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Datastreamsaeri01engineer Documentation Data Quality Plots Citation DOI: 10.5439/1025140 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Datastream : AERI01ENGINEER Atmospheric Emitted Radiance Interferometer (AERI) 01: engineering data Active Dates 1995.07.22 - 2014.03.12 Originating Instrument Atmospheric Emitted Radiance Interferometer (AERI) Measurements Only measurements

  11. Facility Engineering | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Facility Engineering Facility Engineering Facility Engineering (FE) programmatic element efforts within EM encompasses real property asset management across the EM complex as well as the transfers of real property to Community Reuse Organizations and other entities for asset revitalization and/or economic development. In addition, FE coordinates, analyzes, and concurs on EM site submission for infrastructure reporting, such as, in the Integrated Facilities and Infrastructure crosscut and the

  12. Mechanical Engineering | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Capabilities Electronics Design and Fabrication High Performance Computing Mechanical Engineering Monte Carlo Simulations Mechanical Engineering Mechanical Engineering In recent years the Mechanical Support Group has participated in the construction of the ATLAS Tile Calorimeter, as well as detectors for the MINOS and NOvA experiments. For ATLAS, the group was responsible for construction of a large fraction of the extended barrel tile hadron calorimeter. For MINOS, we designed and fabricated

  13. Systems Engineering | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engineering Systems Engineering Project objectives: to create an interactive, physics based, systems analysis tool for geothermal energy development that will: Identify points of attack to maximize efforts and investment dollars; Identify the parameter space where geothermal energy production is physically and economically viable; Provide a platform for public education and interaction. analysis_lowry_systems_engineering.pdf (473.49 KB) More Documents & Publications track 2: hydrothermal

  14. High temperature turbine engine structure

    DOE Patents [OSTI]

    Carruthers, William D.; Boyd, Gary L.

    1992-01-01

    A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

  15. High temperature turbine engine structure

    DOE Patents [OSTI]

    Carruthers, William D.; Boyd, Gary L.

    1993-01-01

    A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

  16. High temperature turbine engine structure

    DOE Patents [OSTI]

    Carruthers, William D.; Boyd, Gary L.

    1994-01-01

    A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

  17. engineer | OpenEI Community

    Open Energy Info (EERE)

    ancient building system architect biomimicry building technology cooling cu daylight design problem energy use engineer fred andreas geothermal green building heat transfer...

  18. Data System Sciences & Engineering Group

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Architectures for National Security Risk Analysis Streaming Realtime Sensor Networks Visual Analytics Opportunities Contact Us Data System Sciences & Engineering Group DSSE goes...

  19. RESEARCH PERSONNEL AND ENGINEERING STAFF

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mechanical Engineer Postdoctoral Research Associates Bijay Agrawal - To 122304 Narayana P. Appathurai - To 93004 Lie-Wen Chen - To 9104 Vicenzo Greco Marian Jandel Seweryn...

  20. Engine Lubricants: Trends and Challenges

    Broader source: Energy.gov [DOE]

    This overview discusses how lubricant developers, lubricant marketers, and OEMs are working with the engine community to overcome performance challenges worldwide.

  1. Regulation for a gas engine

    SciTech Connect (OSTI)

    Esslingen, H.B.; Daudel, H.; Brandner, B.; Klueppel, K.

    1989-06-27

    This patent describes a control system for an internal combustion engine provided with an ignition pulse generator having adjustable ignition angle characteristics comprising: (a) adjustment means for receiving a control signal and for adjusting the ignition angle of the ignition pulse generator in response thereto; (b) means for determining engine rotational speed; (c) means for determining engine load; (d) means for determining a base ignition angle as a function of engine load and engine rotational speed; (e) means for determining an actual lambda-value during operation of the internal combustion engine; (f) means for determining a desired lambda-value as a function of engine rotational speed and engine load; (g) means for determining a lambda-difference value by comparing the magnitude of the actual lambda-value with the magnitude of the desired lambda-value; (h) means for determining a correction of the base ignition angle as a function of the magnitude of the lambda-difference value and the engine load; and (i) means for producing the control signal as a function of the corrected base ignition angle and for supplying the control signal to the adjustment means.

  2. SC e-journals, Engineering

    Office of Scientific and Technical Information (OSTI)

    Engineering Science Chemical Science Chemistry of Materials Chinese Optics Letters ... Robotic Systems Journal of Solid State Chemistry Journal of The American Ceramic Society ...

  3. Quality engineering as a profession.

    SciTech Connect (OSTI)

    Kolb, Rachel R.; Hoover, Marcey L.

    2012-12-01

    Over the course of time, the profession of quality engineering has witnessed significant change, from its original emphasis on quality control and inspection to a more contemporary focus on upholding quality processes throughout the organization and its product realization activities. This paper describes the profession of quality engineering, exploring how today's quality engineers and quality professionals are certified individuals committed to upholding quality processes and principles while working with different dimensions of product development. It also discusses the future of the quality engineering profession and the future of the quality movement as a whole.

  4. Sandia Energy - Automotive HCCI Engine

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    because of its potential to rival the high efficiency of diesel engines while keeping NOx and particulate emissions extremely low. However, researchers must overcome several...

  5. Electronics Engineer- OPEN CONTINUOUS ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

    This recruitment is an OPEN CONTINUOUS ANNOUNCEMENT (OCA) being utilized to fill current and future Electrical Engineer vacancies within BPA's Transmission Field Services organization. Positions...

  6. Electrical Engineer- OPEN CONTINUOUS ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

    This recruitment is an OPEN CONTINUOUS ANNOUNCEMENT (OCA) being utilized to fill current and future Electrical Engineer vacancies within BPA's Transmission Field Services organization. Positions...

  7. Nuclear Engineering | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nuclear Engineering Nearly every commercial reactor in existence today owes its development to seminal research conducted at Argonne National Laboratory. Building on this heritage, ...

  8. Enabling High Efficiency Ethanol Engines

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    High Efficiency Ethanol Engines (VSSP 12) Presented by Robert Wagner Oak Ridge National ... advantage of the unique properties of ethanol and ethanol-gasoline blends.. 3 Managed ...

  9. Cyber Engineering Research Laboratory (CERL)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering ...

  10. Systems Engineer | Department of Energy

    Energy Savers [EERE]

    disruptions in oil supplies. Organizational Structure: This position is located in the Office of the Assistant Project Manager for Systems & Projects, Systems Engineering and...

  11. Aztech Engineers | Open Energy Information

    Open Energy Info (EERE)

    Connecticut Zip: 6120 Product: Connecticut-based consulting engineers specializing in HVAC, Plumbing, Fire-Protection, Electrical, and Geo-Thermal Well Systems. Coordinates:...

  12. Nuclear Engineering | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nuclear Milestones Publications News Press Releases Features Science Highlights In the ... Divisions Energy Systems Global Security Sciences Nuclear Engineering Nuclear Milestones ...

  13. Resonator coiling in thermoacoustic engines

    SciTech Connect (OSTI)

    Olson, J.R.; Swift, G.W.

    1995-11-01

    Coiling the resonator of a thermoacoustic engine is one way to try to minimize the engine`s size. However, flow in bent pipes is known to alter the fluid flow pattern because of centrifugal forces. Theory and measurements will be presented on the energy dissipation caused by oscillating flow in curved pipes. Measurements have been taken using free oscillations of liquids in U-tubes, and using a thermoacoustic engine with straight and bent resonators. [Work supported by the TTI program of the US Department of Energy, and by the Tektronix Corporation.

  14. Mission | APS Engineering Support Division

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    mission, the APS Engineering Support Division provides: Highly reliable, state-of-the-art computer infrastructure to meet the needs of the APS. Leading-edge information...

  15. engineering | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Livermore Laboratory engineer Bryan Moran won an award last month for his 3D printing innovation. It could revolutionize additive manufacturing. Lawrence Livermore Lab ...

  16. Internal combustion rotary engine

    SciTech Connect (OSTI)

    Chen, S.P.

    1993-08-24

    An internal combustion rotary engine is described comprising: an internal combustion chamber wherein a combustible fuel-air mixture is ignited for producing a driving gas flow; a central rotor having an outer surface in which at least one group of curved channels circumferentially-and-axially extending without radially extending through the central rotor; and at least one annular rotor each enclosing the central rotor having an inner surface in which a corresponding number of curved channels circumferentially-and-axially extending without radially extending through the annular rotor; when the curved channels in the central rotor communicate with the curved channels in the annular rotor, the driving gas flow circumferentially-and-axially passing between the outer surface of the central rotor and the inner surface of the annular rotor for rotating the central rotor and the annular rotor in opposite directions.

  17. Gas turbine engine

    DOE Patents [OSTI]

    Lawlor, Shawn P.; Roberts, II, William Byron

    2016-03-08

    A gas turbine engine with a compressor rotor having compressor impulse blades that delivers gas at supersonic conditions to a stator. The stator includes a one or more aerodynamic ducts that each have a converging portion and a diverging portion for deceleration of the selected gas to subsonic conditions and to deliver a high pressure oxidant containing gas to flameholders. The flameholders may be provided as trapped vortex combustors, for combustion of a fuel to produce hot pressurized combustion gases. The hot pressurized combustion gases are choked before passing out of an aerodynamic duct to a turbine. Work is recovered in a turbine by expanding the combustion gases through impulse blades. By balancing the axial loading on compressor impulse blades and turbine impulse blades, asymmetrical thrust is minimized or avoided.

  18. Quick release engine cylinder

    DOE Patents [OSTI]

    Sunnarborg, Duane A.

    2000-01-01

    A quick release engine cylinder allows optical access to an essentially unaltered combustion chamber, is suitable for use with actual combustion processes, and is amenable to rapid and repeated disassembly and cleaning. A cylinder member, adapted to constrain a piston to a defined path through the cylinder member, sealingly engages a cylinder head to provide a production-like combustion chamber. A support member mounts with the cylinder member. The support-to-cylinder mounting allows two relationships therebetween. In the first mounting relationship, the support engages the cylinder member and restrains the cylinder against the head. In the second mounting relationship, the cylinder member can pass through the support member, moving away from the head and providing access to the piston-top and head.

  19. Engine Cylinder Temperature Control

    DOE Patents [OSTI]

    Kilkenny, Jonathan Patrick; Duffy, Kevin Patrick

    2005-09-27

    A method and apparatus for controlling a temperature in a combustion cylinder in an internal combustion engine. The cylinder is fluidly connected to an intake manifold and an exhaust manifold. The method and apparatus includes increasing a back pressure associated with the exhaust manifold to a level sufficient to maintain a desired quantity of residual exhaust gas in the cylinder, and varying operation of an intake valve located between the intake manifold and the cylinder to an open duration sufficient to maintain a desired quantity of fresh air from the intake manifold to the cylinder, wherein controlling the quantities of residual exhaust gas and fresh air are performed to maintain the temperature in the cylinder at a desired level.

  20. ABB Combustion Engineering`s nuclear experience and technologies

    SciTech Connect (OSTI)

    Matzie, R.A.

    1994-12-31

    ABB Combustion Engineering`s nuclear experience and technologies are outlined. The following topics are discussed: evolutionary approach using proven technology, substantial improvement to plant safety, utility perspective up front in developing design, integrated design, competitive plant cost, operability and maintainability, standardization, and completion of US NRC technical review.

  1. Career Map: Quality Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Quality Engineer Career Map: Quality Engineer A male quality engineer sits at a desk with several computers showing data. Quality Engineer Position Title Quality Engineer Alternate Title(s) Quality Assurance, Quality Control Education & Training Level Advanced, Bachelors required, prefer graduate degree or equivalent experience Education & Training Level Description Quality engineers need a bachelor's degree in an engineering field, plus experience. Professional certifications may be

  2. Diesel engines vs. spark ignition gasoline engines -- Which is ``greener``?

    SciTech Connect (OSTI)

    Fairbanks, J.W.

    1997-12-31

    Criteria emissions, i.e., NO{sub x}, PM, CO, CO{sub 2}, and H{sub 2}, from recently manufactured automobiles, compared on the basis of what actually comes out of the engines, the diesel engine is greener than spark ignition gasoline engines and this advantage for the diesel engine increases with time. SI gasoline engines tend to get out of tune more than diesel engines and 3-way catalytic converters and oxygen sensors degrade with use. Highway measurements of NO{sub 2}, H{sub 2}, and CO revealed that for each model year, 10% of the vehicles produce 50% of the emissions and older model years emit more than recent model year vehicles. Since 1974, cars with SI gasoline engines have uncontrolled emission until the 3-way catalytic converter reaches operating temperature, which occurs after roughly 7 miles of driving. Honda reports a system to be introduced in 1998 that will alleviate this cold start problem by storing the emissions then sending them through the catalytic converter after it reaches operating temperature. Acceleration enrichment, wherein considerable excess fuel is introduced to keep temperatures down of SI gasoline engine in-cylinder components and catalytic converters so these parts meet warranty, results in 2,500 times more CO and 40 times more H{sub 2} being emitted. One cannot kill oneself, accidentally or otherwise, with CO from a diesel engine vehicle in a confined space. There are 2,850 deaths per year attributable to CO from SI gasoline engine cars. Diesel fuel has advantages compared with gasoline. Refinery emissions are lower as catalytic cracking isn`t necessary. The low volatility of diesel fuel results in a much lower probability of fires. Emissions could be improved by further reducing sulfur and aromatics and/or fuel additives. Reformulated fuel has become the term covering reducing the fuels contribution to emissions. Further PM reduction should be anticipated with reformulated diesel and gasoline fuels.

  3. Engineering approaches to ecosystem restoration

    SciTech Connect (OSTI)

    Hayes, D.F.

    1998-07-01

    This proceedings CD ROM contains 127 papers on developing and evaluating engineering approaches to wetlands and river restoration. The latest engineering developments are discussed, providing valuable insights to successful approaches for river restoration, wetlands restoration, watershed management, and constructed wetlands for stormwater and wastewater treatment. Potential solutions to a wide variety of ecosystem concerns in urban, suburban, and coastal environments are presented.

  4. Rotary valve internal combustion engine

    SciTech Connect (OSTI)

    Bunk, P.H.

    1989-03-28

    A rotary valve internal combustion engine is described, comprising: an engine block; at least one cylinder in the engine block; at least one cylinder having a top end; cylinder head means located adjacent the top end of at least one cylinder, the cylinder head means having a cylindrically shaped cavity therein, the cylindrically shaped cavity being oriented in perpendicular relation to at least one cylinder; a piston sealingly mounted in at least one cylinder for reciprocable movement therein, the reciprocable movement including an intake stroke and an exhaust stroke; engine shaft means rotatably mounted to the engine block; means within the engine block for converting the reciprocable movement of the piston into rotary motion of the engine shaft means; a cylinder port located at the top end of at least one cylinder; a rotary valve rotatably mounted in the cylindrically shaped cavity; means connected with the engine shaft means for rotating the rotary valve in a predetermined synchronization with the reciprocable movement of the piston; aspiration means in the rotary valve for selectively aspirating at least one cylinder during the intake an exhaust strokes; and a spark plug removably mounted within the rotary valve and rotatable therewith.

  5. Stirling engine with pressurized crankcase

    DOE Patents [OSTI]

    Corey, John A.

    1988-01-01

    A two piston Stirling engine wherein the pistons are coupled to a common crankshaft via bearing means, the pistons include pad means to minimize friction between the pistons and the cylinders during reciprocation of the pistons, means for pressurizing the engine crankcase, and means for cooling the crankshaft and the bearing means eliminating the need for oil in the crankcase.

  6. Stirling Engines and Irrigation Pumping

    SciTech Connect (OSTI)

    West, C.D.

    1987-01-01

    This report was prepared in support of the Renewable Energy Applications and Training Project that is sponsored by the U.S. Agency for International Development for which ORNL provides technical assistance. It briefly outlines the performance that might be achievable from various kinds of Stirling-engine-driven irrigation pumps. Some emphasis is placed on the very simple liquid-piston engines that have been the subject of research in recent years and are suitable for manufacture in less well-developed countries. In addition to the results quoted here (possible limits on M4 and pumping head for different-size engines and various operating conditions), the method of calculation is described in sufficient detail for engineers to apply the techniques to other Stirling engine designs for comparison.

  7. HCCI Engine Optimization and Control

    SciTech Connect (OSTI)

    Rolf D. Reitz

    2005-09-30

    The goal of this project was to develop methods to optimize and control Homogeneous-Charge Compression Ignition (HCCI) engines, with emphasis on diesel-fueled engines. HCCI offers the potential of nearly eliminating IC engine NOx and particulate emissions at reduced cost over Compression Ignition Direct Injection engines (CIDI) by controlling pollutant emissions in-cylinder. The project was initiated in January, 2002, and the present report is the final report for work conducted on the project through December 31, 2004. Periodic progress has also been reported at bi-annual working group meetings held at USCAR, Detroit, MI, and at the Sandia National Laboratories. Copies of these presentation materials are available on CD-ROM, as distributed by the Sandia National Labs. In addition, progress has been documented in DOE Advanced Combustion Engine R&D Annual Progress Reports for FY 2002, 2003 and 2004. These reports are included as the Appendices in this Final report.

  8. Engine combustion and flow diagnostics

    SciTech Connect (OSTI)

    1995-12-31

    This informative publication discusses the application of diagnostic techniques to internal combustion engines. The papers included fall into three broad categories: flow diagnostics, combustion diagnostics, and fuel spray diagnostics. Contents include: controlling combustion in a spark ignition engine by quantitative fuel distribution; a model for converting SI engine flame arrival signals into flame contours; in-cylinder diesel flame imaging compared with numerical computations; ignition and early soot formation in a DI diesel engine using multiple 2-D imaging diagnostics; investigation of diesel sprays using diffraction-based droplet sizing; fuel distribution effects on the combustion of a direct-injection stratified-charge engine; and 2-D measurements of the liquid phase temperature in fuel sprays.

  9. Microsoft Word - Glossary_2009April20.doc

    U.S. Energy Information Administration (EIA) Indexed Site

    Adopted by NERC Board of Trustees: November 13, 2008 Page 1 of 21 Glossary of Terms Used in Reliability Standards Updated April 20, 2009 Term Acronym Definition Adequacy The ability of the electric system to supply the aggregate electrical demand and energy requirements of the end-use customers at all times, taking into account scheduled and reasonably expected unscheduled outages of system elements. Adjacent Balancing Authority A Balancing Authority Area that is interconnected another Balancing

  10. Sandia National Laboratories: Careers: Electrical Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Electrical Engineering Electrical Engineering photo Electrical engineers at Sandia design and develop advanced instrumentation systems for in-flight weapons system evaluations and other applications. Sandia creates innovative, science-based, systems-engineering solutions to our nation's most challenging national security problems. Sandia electrical engineers are an integral part of multidisciplinary teams tasked with defining requirements, creating system designs, implementing design

  11. Engineering Cellulases for Biorefinery

    SciTech Connect (OSTI)

    Manoj Kumar, PhD

    2010-06-27

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  12. Axial flow rotary engine

    SciTech Connect (OSTI)

    Loran, W.; Robinson, M.A.

    1989-07-18

    This paper describes an internal combustion engine. It comprises: a housing having an intake port at one end thereof and an exhaust port at the other end thereof; a compression chamber in the housing near the one end; compressor means in the compression chamber; a compressor transfer port opening through the downstream outlet wall; an expansion chamber in the housing near the other end thereof to receive combusted gases; work means in the expansion chamber driven by expanding, combusted gases; means rotating the compressor outlet wall at the same rotational drive speed as the expander inlet wall; an expansion chamber inlet port opening extending through the upstream inlet wall; a cylindrical combustion chamber block rotatable in the housing intermediate the compression chamber and the expansion chamber; at least two combustion chambers in the block; means rotating the block at a reduced speed relative to the speed of rotation of the compressor outlet wall and the expander inlet wall; means for igniting the charge of compressed gas during the intermediate portion of each revolution of the combustion chamber block. The combustion chambers being substantially hemispherical; the speed of rotation of the compressor outlet wall is in the same ratio to the speed of rotation of the combustion chamber block as the number of combustion chambers in the block is to the number of combustion chambers less one.

  13. Subterranean stress engineering experiments

    SciTech Connect (OSTI)

    Campbell, J.R.; Colgate, S.A.; Wheat, B.M.

    1980-01-01

    The state of stress in a subterranean rock mass has classically been assumed to be constant at best. In soil with a high clay content, preconsolidation and drainage methods can lead to more stable foundation material, but methods for engineering the stresses in large masses of rock are not well known. This paper shows the results from an experiment designed to alter the in situ rock stress field in an oil shale mine. This was done by hydrofracturing the rock by use of a packed-well injection system and then propping the crack open with a thixotropic gel, which slowly hardened to the consistency of cement. Successive hydrofracture and high-pressure grouting resulted in an overstressed region. Well-head injection pressures, surface tilts, injection rates, and subterranean strains were measured and recorded on floppy disk by a Z-80 microprocessor. The results were then transmitted to the large computer system at the Los Alamos Scientific Laboratory (LASL). To put the data in a more useful form, computer-generated movies of the tilts and strains were made by use of computer graphics developed at LASL. The purpose of this paper is to present results from the Single Large Instrumented Test conducted in the Colony Oil Shale Mine near Rifle, Colorado. 13 figures.

  14. Acoustic cooling engine

    DOE Patents [OSTI]

    Hofler, Thomas J.; Wheatley, John C.; Swift, Gregory W.; Migliori, Albert

    1988-01-01

    An acoustic cooling engine with improved thermal performance and reduced internal losses comprises a compressible fluid contained in a resonant pressure vessel. The fluid has a substantial thermal expansion coefficient and is capable of supporting an acoustic standing wave. A thermodynamic element has first and second ends and is located in the resonant pressure vessel in thermal communication with the fluid. The thermal response of the thermodynamic element to the acoustic standing wave pumps heat from the second end to the first end. The thermodynamic element permits substantial flow of the fluid through the thermodynamic element. An acoustic driver cyclically drives the fluid with an acoustic standing wave. The driver is at a location of maximum acoustic impedance in the resonant pressure vessel and proximate the first end of the thermodynamic element. A hot heat exchanger is adjacent to and in thermal communication with the first end of the thermodynamic element. The hot heat exchanger conducts heat from the first end to portions of the resonant pressure vessel proximate the hot heat exchanger. The hot heat exchanger permits substantial flow of the fluid through the hot heat exchanger. The resonant pressure vessel can include a housing less than one quarter wavelength in length coupled to a reservoir. The housing can include a reduced diameter portion communicating with the reservoir. The frequency of the acoustic driver can be continuously controlled so as to maintain resonance.

  15. Wankel engine for hybrid powertrain

    SciTech Connect (OSTI)

    Butti, A.; Site, V.D.

    1995-12-31

    The Wankel engine is suited to be used to drive hybrid propulsion systems. The main disadvantage of hybrid propulsion systems is the complexity that causes a high weight and large dimensions. For these reason hybrid systems are more suitable for large size vehicle (buses, vans) rather than for small passenger cars. A considerable reduction of hybrid systems weight and dimensions can be obtained using a Wankel rotary engine instead of a conventional engine. The Wankel engine is light, compact, simple, and produces low noise and low vibrations. Therefore a Wankel engine powered hybrid system is suited to be used on small cars. In this paper a 1,000 kg parallel hybrid car with continuously variable transmission and a 6,000 kg series hybrid minibus both equipped with Wankel engines are considered. The Wankel engine works at steady state to minimize fuel consumption and exhaust emissions. The simulation of the behavior of these two vehicles during a ECE + EUDC test cycle is presented in order to evaluate the performances of the systems.

  16. Regenerative rotary displacer Stirling engine

    SciTech Connect (OSTI)

    Isshiki, Naotsugu; Watanabe, Hiroichi; Raggi, L.; Isshiki, Seita; Hirata, Koichi

    1996-12-31

    A few rotary displacer Stirling engines in which the displacer has one gas pocket space at one side and rotates in a main enclosed cylinder, which is heated from one side and cooled from opposite side without any regenerator, have been studied for some time by the authors. The authors tried to improve this engine by equipping it with a regenerator, because without a regenerator, pressure oscillation and efficiency are too small. Here, several types of regenerative rotary displacer piston Stirling engines are proposed. One is the contra-rotating tandem two disc type displacer engine using axial heat conduction through side walls or by heat pipes and another is a single disc type with circulating fluid regenerator or heat pipes. Stirling engines of this new rotary displacer type are thought to attain high speed. Here, experimental results of the original rotary displacer Stirling engine without a regenerator, and one contra-rotating tandem displacer engine with side wall regenerator by axial heat conduction are reported accompanied with a discussion of the results.

  17. Enabling High Efficiency Ethanol Engines

    SciTech Connect (OSTI)

    Szybist, J.; Confer, K.

    2011-03-01

    Delphi Automotive Systems and ORNL established this CRADA to explore the potential to improve the energy efficiency of spark-ignited engines operating on ethanol-gasoline blends. By taking advantage of the fuel properties of ethanol, such as high compression ratio and high latent heat of vaporization, it is possible to increase efficiency with ethanol blends. Increasing the efficiency with ethanol-containing blends aims to remove a market barrier of reduced fuel economy with E85 fuel blends, which is currently about 30% lower than with petroleum-derived gasoline. The same or higher engine efficiency is achieved with E85, and the reduction in fuel economy is due to the lower energy density of E85. By making ethanol-blends more efficient, the fuel economy gap between gasoline and E85 can be reduced. In the partnership between Delphi and ORNL, each organization brought a unique and complementary set of skills to the project. Delphi has extensive knowledge and experience in powertrain components and subsystems as well as overcoming real-world implementation barriers. ORNL has extensive knowledge and expertise in non-traditional fuels and improving engine system efficiency for the next generation of internal combustion engines. Partnering to combine these knowledge bases was essential towards making progress to reducing the fuel economy gap between gasoline and E85. ORNL and Delphi maintained strong collaboration throughout the project. Meetings were held regularly, usually on a bi-weekly basis, with additional reports, presentations, and meetings as necessary to maintain progress. Delphi provided substantial hardware support to the project by providing components for the single-cylinder engine experiments, engineering support for hardware modifications, guidance for operational strategies on engine research, and hardware support by providing a flexible multi-cylinder engine to be used for optimizing engine efficiency with ethanol-containing fuels.

  18. Applied engineering fundamentals: The transition from novice to engineering manager

    SciTech Connect (OSTI)

    Murawski, M.N.; Tomchin, E.M. )

    1992-01-01

    This paper describes the development and implementation of Applied Engineering Fundamentals, a course designed for newly graduated engineers and scientists serving as technical interns within the US Department of Energy (DOE). As specialists with varying undergraduate and graduate degrees, interns need further training to prepare them for the multidisciplinary environments they will encounter as they become engineering managers. This course is designed to build on individuals strengths in diverse engineering and scientific disciplines, provide instruction in less familiar disciplines, and develop skills in integrating multiple disciplines to solve real-world problems related to nuclear facilities. The course balances systems thinking with state-of-the-art approaches to curriculum development to provide training in technical content and to foster development of professional skills.

  19. The Rhythm Engineers | Y-12 National Security Complex

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Rhythm Engineers The Rhythm Engineers The Rhythm Engineers entertain in front of a drawing of Jackson Square...

  20. Interdisciplinary Engineer (Electrical/Electronics/Nuclear/Computer)

    Broader source: Energy.gov [DOE]

    THIS IS AN INTERDISCIPLINARY POSITION AND MAY BE FILLED WITH ANY OF THE FOLLOWING OCCUPATIONS: Electrical Engineer, GS-0850-13 Electronics Engineer, GS-0855-13 Nuclear Engineer, GS-0840-13 Computer...

  1. FY2012 Engineering Research & Technology Report

    SciTech Connect (OSTI)

    Lane, Monya

    2014-07-22

    This report documents engineering research, development, and technology advancements performed by LLNL during fiscal year 2012 in the following areas: computational engineering, engineering information systems, micro/nano-devices and structures, and measurement technologies.

  2. Chapter 48 - Value Engineering | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    8 - Value Engineering Chapter 48 - Value Engineering PDF icon 48ValueEngineering0.pdf More Documents & Publications Audit Report: OAS-L-07-08 Emerging Lighting Technology...

  3. Categorical Exclusion Determinations: Energy Technology Engineering Center

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    | Department of Energy Energy Technology Engineering Center Categorical Exclusion Determinations: Energy Technology Engineering Center Categorical Exclusion Determinations issued by Energy Technology Engineering Center. DOCUMENTS AVAILABLE FOR DOWNLOAD No downloads found for this office.

  4. Interdisciplinary Engineer (Electrical/Electronics/Nuclear/Computer)

    Broader source: Energy.gov [DOE]

    THIS IS AN INTERDISCIPLINARY POSITION AND MAY BE FILLED WITH ANY OF THE FOLLOWING OCCUPATIONS: Electrical Engineer, GS-0850-12 Electronics Engineer, GS-0855-12 Nuclear Engineer, GS-0840-12 Computer...

  5. Rotating head and piston engine

    SciTech Connect (OSTI)

    Gomm, T.J.; Messick, N.C.

    1992-07-21

    This patent describes a rotary piston combustion engine. It comprises a housing means, an engine block housing a single toroidal bore, a piston carrier ring spaced outwardly along the entire perimeter of the toroidal bore with at least one finger extending inwardly for piston attachment, a power transfer cylinder, a power output shaft, an auxiliary shaft with driven gearing means meshing with the driving gearing means, a rotating head with windows for piston passage, a trapezoidal porting means in the engine block and in the rotating head, an exhaust port means.

  6. The Science DMZ Eli Dart, Network Engineer ESnet Engineering Group

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science DMZ Eli Dart, Network Engineer ESnet Engineering Group Winter 2011 Joint Techs Clemson, SC February 1, 2011 Lawrence Berkeley National Laboratory U.S. Department of Energy | Office of Science Overview Science Needs * Data tsunami, new science processes * Current problems * Consequences What is important and how to accomplish it * Important aspects of the network for users * Science DMZ architecture Security Concerns Recap Resources Lawrence Berkeley National Laboratory U.S. Department of

  7. Engine Research Facility | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engine Research Facility Argonne's Engine Research Facility allows scientists and engineers to study in-cylinder combustion and emissions under realistic operating conditions. The facility's engines range in size from automobile- to locomotive-sized, as well as stationary electric power production engines. The facility is used to discover and evaluate new technologies to determine their technical feasibility and commercial viability. In addition, Argonne researchers use the facility's engines to

  8. Engineer, Sandia National Laboratories | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration | (NNSA) Engineer, Sandia National Laboratories Clifford Ho Clifford Ho February 2010 Asian American Engineer of the Year Clifford Ho, a Sandia engineer, has been selected by the Chinese Institute of Engineers - USA to receive the Asian American Engineer of the Year Award. The honor is presented each year to the nation's most outstanding Asian American engineers and scientists who make significant, lasting and global contributions to the nation. Ho was recognized for his

  9. Materials Engineering Research Facility | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Materials Engineering Research Facility Materials Engineering Research Facility exterior 1 of 11 Materials Engineering Research Facility exterior With the Materials Engineering Research Facility's state-of-the-art labs and equipment, Argonne researchers can safely scale up materials from the research bench for commercial testing. Photo courtesy Argonne National Laboratory. Materials Engineering Research Facility exterior 1 of 11 Materials Engineering Research Facility exterior With the Materials

  10. LANL computer model boosts engine efficiency

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LANL computer model boosts engine efficiency LANL computer model boosts engine efficiency The KIVA model has been instrumental in helping researchers and manufacturers understand combustion processes, accelerate engine development and improve engine design and efficiency. September 25, 2012 KIVA simulation of an experimental engine with DOHC quasi-symmetric pent-roof combustion chamber and 4 valves. KIVA simulation of an experimental engine with DOHC quasi-symmetric pent-roof combustion chamber

  11. Sandia National Laboratories: Careers: Systems Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Systems Engineering Systems engineering robot Systems engineers contribute to every aspect that impacts how a product is conceived, developed, and deployed into the field. Systems engineers at Sandia have the opportunity to contribute technically and programmatically in the development of our many breakthrough products. Systems engineers have responsibilities across the entire product life cycle, giving them a unique, hands-on work experience. Systems engineers work with business development

  12. Co-Optimization of Fuels and Engines

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Co-Optimization of Fuels and Engines John Farrell SAE High Efficiency Internal Combustion Engine Symposium April 11, 2016 2 Goal: better fuels and better vehicles sooner Fuel and Engine Co-Optimization o What fuel properties maximize engine performance? o How do engine parameters affect efficiency? o What fuel and engine combinations are sustainable, affordable, and scalable? 3 30% per vehicle petroleum reduction via efficiency and displacement source: EIA 2014 reference case Fuel selection

  13. High Efficiency Clean Combustion Engine Designs for Gasoline...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engine Designs for Gasoline and Diesel Engines High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines 2009 DOE Hydrogen Program and Vehicle Technologies ...

  14. Fuel Additive Strategies for Enhancing the Performance of Engines...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Additive Strategies for Enhancing the Performance of Engines and Engine Oils Fuel Additive Strategies for Enhancing the Performance of Engines and Engine Oils 2003 DEER Conference ...

  15. Mechanical Design Engineer (MED) | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Design Engineer (MED) Department: Engineering Supervisor(s): Douglas Loesser Staff: ENG 3 ... Its Mechanical Engineering Division (MED) is seeking to hire a Mechanical Engineer. The ...

  16. Los Alamos engineer selected to participate in NAE's 2012 "Frontiers...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Moody to participate in "Frontiers of Engineering" Los Alamos engineer selected to participate in NAE's 2012 "Frontiers of Engineering" symposium Engineers between 30 to 45 who are ...

  17. Optical-Mechanical Engineer | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Optical-Mechanical Engineer Department: Engineering Supervisor(s): Bill Blanchard Staff: ... We are seeking an Optical-Mechanical Engineer to join the Diagnostics Engineering Team in ...

  18. Sandia Energy - Large Eddy Simulation (LES) of Engines

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Large Eddy Simulation (LES) of Engines Home Transportation Energy Predictive Simulation of Engines Engine Combustion Modeling Large Eddy Simulation (LES) of Engines Large Eddy...

  19. Nuclear Engineering Enrollments and Degrees, 2011

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    nuclear engineering or in an option program equivalent to a major. Thirty-two academic programs reported having nuclear engineering programs during 2011, and data was received from ...

  20. PHEV Engine and Aftertreatment Model Development | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PHEV Engine and Aftertreatment Model Development Advanced PHEV Engine Systems and Emissions Control Modeling and Analysis System Simulations of Hybrid Electric Vehicles with Focus ...

  1. Engineering | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    Engineering The Sandia Field Office's Engineering office performs oversight and contract administration activities for the facilities, projects and environmental programs at Sandia National Laboratories

  2. CMI Course Inventory: Mining Engineering | Critical Materials...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to rare earths and critical materials. Other courses are available in these areas: Geology EngineeringGeochemistry Metallurgical EngineeringMaterials Science Chemistry...

  3. Thermodynamic Advantages of Low Temperature Combustion Engines...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Advantages of Low Temperature Combustion Engines Including the Use of Low Heat Rejection Concepts Thermodynamic Advantages of Low Temperature Combustion Engines Including the Use ...

  4. LANL computer model boosts engine efficiency

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    LANL computer model boosts engine efficiency LANL computer model boosts engine efficiency The KIVA model has been instrumental in helping researchers and manufacturers understand...

  5. Microfluidic ultrasonic particle separators with engineered node...

    Office of Scientific and Technical Information (OSTI)

    particle separators with engineered node locations and geometries Citation Details In-Document Search Title: Microfluidic ultrasonic particle separators with engineered node ...

  6. Carbon Cycle Engineering | Open Energy Information

    Open Energy Info (EERE)

    Cycle Engineering Jump to: navigation, search Name: Carbon Cycle Engineering Address: 13725 Dutch Creek Road Place: Athens, Ohio Zip: 45701 Sector: Biofuels, Biomass, Efficiency,...

  7. Electromechanical Engineering Consulting Group ECG | Open Energy...

    Open Energy Info (EERE)

    Electromechanical Engineering Consulting Group ECG Jump to: navigation, search Name: Electromechanical Engineering Consulting Group (ECG) Place: San Jose, Costa Rica Zip: 1521-1000...

  8. Optimization of Advanced Diesel Engine Combustion Strategies...

    Broader source: Energy.gov (indexed) [DOE]

    Optimization of Advanced Diesel Engine Combustion Strategies Optimization of Advanced Diesel Engine Combustion Strategies Use of Low Cetane Fuel to Enable Low Temperature ...

  9. Bicon Namibia Consulting Engineers | Open Energy Information

    Open Energy Info (EERE)

    Name: Bicon Namibia Consulting Engineers Place: Windhoek, Namibia Sector: Wind energy Product: Windhoek-based engineering consultancy firm. Provides design and supervision of...

  10. JFE Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Inc Jump to: navigation, search Name: JFE Engineering Inc Place: Tokyo, Tokyo, Japan Product: JFE Engineering is a business company responsible for environmentally...

  11. ARM - ARM Engineering and Operations Contacts

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Send ARM Engineering and Operations Contacts Technical Coordination Office Person Role Responsible Area PhoneEmail Jim Mather ARM Technical DirectorEngineering Manager...

  12. AVTA: Hydrogen Internal Combustion Engine Vehicle Specifications...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hydrogen Internal Combustion Engine Vehicle Specifications and Test Procedures AVTA: Hydrogen Internal Combustion Engine Vehicle Specifications and Test Procedures HICEV Technical ...

  13. Software Engineer (CODAC) | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Software Engineer (CODAC) Department: Information Technology Supervisor(s): Bill Davis ... This Software Engineer position is with the CODAC group, responsible for the development ...

  14. NETL Science & Engineering Ambassadors Guide Next Generation...

    Broader source: Energy.gov (indexed) [DOE]

    NETL Science & Engineering Ambassadors Guide Next Generation of Energy Decision-Makers A ... Through the Science & Engineering Ambassadors program, NETL's Ale Hakala, Steven Bossart, ...

  15. ALS Ceramics Materials Research Advances Engine Performance

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Ceramics Materials Research Advances Engine Performance ALS Ceramics Materials Research Advances Engine Performance Print Thursday, 27 September 2012 00:00 ritchie ceramics...

  16. Enfocus Engineering Corporation | Open Energy Information

    Open Energy Info (EERE)

    Enfocus Engineering Corporation Jump to: navigation, search Name: Enfocus Engineering Corporation Place: Sunnyvale, California Zip: 94087 Product: Enfocus is an early stage company...

  17. Beijing Haohua Rivers International Water Engineering Consulting...

    Open Energy Info (EERE)

    Haohua Rivers International Water Engineering Consulting Co Ltd Jump to: navigation, search Name: Beijing Haohua Rivers International Water Engineering Consulting Co.Ltd. Place:...

  18. Fagen Engineering LLC | Open Energy Information

    Open Energy Info (EERE)

    Fagen Engineering LLC Jump to: navigation, search Name: Fagen Engineering LLC Place: Granite Falls, Minnesota Zip: 56241 Product: Designs and builds ethanol production plants and...

  19. Corporate Systems Engineering | Open Energy Information

    Open Energy Info (EERE)

    Systems Engineering Jump to: navigation, search Name: Corporate Systems Engineering Place: Indianapolis, Indiana Product: Indiana-based energy management company. Coordinates:...

  20. Recommendation 164: Recommendation on Engineering and Technology...

    Office of Environmental Management (EM)

    4: Recommendation on Engineering and Technology Development on the Oak Ridge Reservation Recommendation 164: Recommendation on Engineering and Technology Development on the Oak...

  1. Caledonian College of Engineering | Open Energy Information

    Open Energy Info (EERE)

    Caledonian College of Engineering Jump to: navigation, search Name: Caledonian College of Engineering Place: Oman Product: The College has many labs and workshops for various...

  2. Omnion Power Engineering Corporation | Open Energy Information

    Open Energy Info (EERE)

    Omnion Power Engineering Corporation Jump to: navigation, search Name: Omnion Power Engineering Corporation Place: Walworth County, Wisconsin Zip: 53120 Product: Wisconsin-based...

  3. Functional Design Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Functional Design Engineering Inc Jump to: navigation, search Name: Functional Design Engineering Inc Region: United States Sector: Marine and Hydrokinetic Website:...

  4. Geothermal Engineering Ltd | Open Energy Information

    Open Energy Info (EERE)

    Engineering Ltd Jump to: navigation, search Name: Geothermal Engineering Ltd. Place: London, United Kingdom Zip: SW1V 3EL Sector: Geothermal energy Product: Cornwall-based company...

  5. Ruby Canyon Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Ruby Canyon Engineering Inc Jump to: navigation, search Name: Ruby Canyon Engineering Inc Place: Grand Junction, Colorado Zip: 81506 Sector: Services Product: String representation...

  6. Azita Emami: Department of Electrical Engineering, California...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineering, California Institute of Technology Dec 4, 2013 | 4:00 PM - 5:00 PM Azita Emami Professor, Department of Electrical Engineering, California Institute of ...

  7. Software Engineer (Scientific Application) | Princeton Plasma...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Software Engineer (Scientific Application) Department: Information Technology Staff: ENG ... This Scientific Applications Software Engineer position is with the Controls and Data ...

  8. China Nuclear Engineering Construction Corporation CNEC | Open...

    Open Energy Info (EERE)

    Nuclear Engineering Construction Corporation CNEC Jump to: navigation, search Name: China Nuclear Engineering & Construction Corporation (CNEC) Place: Beijing, China Zip: 100840...

  9. Diesel Engines: Environmental Impact and Control | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Environmental Impact and Control Diesel Engines: Environmental Impact and Control 2002 ... More Documents & Publications Cleaning Up Diesel Engines DIesel Emission Control ...

  10. Aluminum alloys for satellite boxes : engineering guidelines...

    Office of Scientific and Technical Information (OSTI)

    Aluminum alloys for satellite boxes : engineering guidelines for obtaining adequate ... Title: Aluminum alloys for satellite boxes : engineering guidelines for obtaining adequate ...

  11. Michigan: General Motors Optimizes Engine Valve Technology |...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Michigan: General Motors Optimizes Engine Valve Technology Michigan: General Motors Optimizes Engine Valve Technology November 8, 2013 - 12:00am Addthis An EERE-supported effort to ...

  12. Power Engineers Inc | Open Energy Information

    Open Energy Info (EERE)

    Power Engineers Inc Jump to: navigation, search Name: Power Engineers Inc. Place: Hailey, Idaho Zip: 83333 Sector: Geothermal energy, Solar Product: Idaho-based EPC contractor...

  13. LANL engineers help New Mexico small businesses

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineers help New Mexico small businesses LANL engineers help New Mexico small businesses Charles Lucero and G. Loren Toole received Principal Investigator Excellence (PIE) Awards ...

  14. Performance Engineering Research Center and RECOVERY. Performance...

    Office of Scientific and Technical Information (OSTI)

    Performance Engineering Research Center and RECOVERY. Performance Engineering Research Institution SciDAC-e Augmentation. Performance enhancement Citation Details In-Document ...

  15. Tecno Proget Engineering | Open Energy Information

    Open Energy Info (EERE)

    Name: Tecno Proget Engineering Place: Ragusa, Italy Zip: 97100 Sector: Solar Product: Italian engineering and construction service firm, building a solar plant in Santa Croce...

  16. PMB Engineering Srl | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: PMB Engineering Srl Place: Monza, Italy Zip: 20052 Product: Italian construction and engineering contractor acquired by Greentech Energy in August 2007....

  17. HQ Engineering Srl | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: HQ Engineering Srl Place: Milano, Italy Zip: 20124 Product: Italian engineering company. Coordinates: 45.468945, 9.18103 Show Map Loading map......

  18. PHEV Engine and Aftertreatment Model Development | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PHEV Engine and Aftertreatment Model Development Advanced PHEV Engine Systems and Emissions Control Modeling and Analysis Measurement and Characterization of Lean NOx Adsorber ...

  19. A Roadmap for Engineering Piezoelectricity in Graphene

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Roadmap for Engineering Piezoelectricity in Graphene A Roadmap for Engineering Piezoelectricity in Graphene Doping this 'Miracle Material' May Lead to New Array of Nanoscale ...

  20. ORISE: Nuclear engineering graduates decrease in 2009

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nuclear engineering degrees decrease, enrollments increase in 2009 ORISE report shows unexpected decline in 2009 in nuclear engineering degrees but largest enrollment since mid ...

  1. advanced combustion engines | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Advanced Combustion Engines Improving the efficiency of internal combustion engines is one of the most promising and cost-effective near- to mid-term approaches to increasing...

  2. Reactor Engineering Design | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Reactor Engineering Design The Reactor Engineering Design Key Technology will focus on control of chemical reactions with unprecedented precision in increasingly modular and ...

  3. Laser Light Engines | Open Energy Information

    Open Energy Info (EERE)

    Laser Light Engines Jump to: navigation, search Name: Laser Light Engines Place: Salem, New Hampshire Zip: NH 03079 Sector: Efficiency Product: Salem-based, designs, develops and...

  4. Shafir Civil Marine Engineering | Open Energy Information

    Open Energy Info (EERE)

    Engineering Jump to: navigation, search Name: Shafir Civil & Marine Engineering Place: Israel Sector: Services Product: Services include infrastructure works, contracting, bridge...

  5. Synchrophasor Engineering Education Program Project Summaries...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Synchrophasor Engineering Education Program Project Summaries Available Synchrophasor Engineering Education Program Project Summaries Available July 9, 2014 - 10:48am Addthis On...

  6. Systems Engineering; 2010 Geothermal Technology Program Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engineering; 2010 Geothermal Technology Program Peer Review Report Systems Engineering; 2010 Geothermal Technology Program Peer Review Report DOE 2010 Geothermal Technologies ...

  7. Voluntary Protection Program Onsite Review, Facility Engineering...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Facility Engineering Services KCP, LLC - September 2012 Voluntary Protection Program Onsite Review, Facility Engineering Services KCP, LLC - September 2012 September 2012 ...

  8. Young Women's Conference in Science, Technology, Engineering...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Young Women's Conference in Science, Technology, Engineering & Mathematics The 16th annual ... The Young Women's Conference in Science, Technology, Engineering, and Mathematics ...

  9. Clean and Efficient Diesel Engine

    SciTech Connect (OSTI)

    2010-12-31

    Task 1 was to design study for fuel-efficient system configuration. The objective of task 1 was to perform a system design study of locomotive engine configurations leading to a 5% improvement in fuel efficiency. Modeling studies were conducted in GT-Power to perform this task. GT-Power is an engine simulation tool that facilitates modeling of engine components and their system level interactions. It provides the capability to evaluate a variety of engine technologies such as exhaust gas circulation (EGR), variable valve timing, and advanced turbo charging. The setup of GT-Power includes a flexible format that allows the effects of variations in available technologies (i.e., varying EGR fractions or fuel injection timing) to be systematically evaluated. Therefore, development can be driven by the simultaneous evaluation of several technology configurations.

  10. Rotary-reciprocal combustion engines

    SciTech Connect (OSTI)

    Blount, D.H.

    1992-10-06

    This patent describes an internal combustion engine of the rotary-reciprocal type. It comprises a housing formed with a peripheral wall; a rotor; and a shaft for the rotor.

  11. Next Generation Diesel Engine Control

    Broader source: Energy.gov [DOE]

    Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

  12. Human Factors Engineering Analysis Tool

    Energy Science and Technology Software Center (OSTI)

    2002-03-04

    HFE-AT is a human factors engineering (HFE) software analysis tool (AT) for human-system interface design of process control systems, and is based primarily on NUREG-0700 guidance.

  13. General Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engineer General Engineer Submitted by admin on Mon, 2016-08-08 00:15 Job Summary Organization Name Department Of Energy Agency SubElement Department of Energy Locations Golden, Colorado Announcement Number SE-16-EE-00730-DE Job Summary The Office of Energy Efficiency and Renewable Energys (EEREs) mission is to create and sustain American leadership in the global transition to a clean energy economy through high-impact research, development, and demonstration and by breaking down barriers to

  14. Vortex Characterization for Engineering Applications

    SciTech Connect (OSTI)

    Jankun-Kelly, M; Thompson, D S; Jiang, M; Shannahan, B; Machiraju, R

    2008-01-30

    Realistic engineering simulation data often have features that are not optimally resolved due to practical limitations on mesh resolution. To be useful to application engineers, vortex characterization techniques must be sufficiently robust to handle realistic data with complex vortex topologies. In this paper, we present enhancements to the vortex topology identification component of an existing vortex characterization algorithm. The modified techniques are demonstrated by application to three realistic data sets that illustrate the strengths and weaknesses of our approach.

  15. Encryption Engine - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Advanced Materials Advanced Materials Find More Like This Return to Search Encryption Engine Sandia National Laboratories Contact SNL About This Technology Publications: PDF Document Publication Market Sheet (885 KB) Technology Marketing SummaryIn the past, traditional encryption engines utilized a mode of encryption that was vulnerable to certain attacks and not capable of running at full capacity. Sandia has created an invention that provides a solution to the problem of keeping an encryption

  16. ABB Combustion Engineering nuclear technology

    SciTech Connect (OSTI)

    Matzie, R.A.

    1994-12-31

    The activities of ABB Combustion Engineering in the design and construction of nuclear systems and components are briefly reviewed. ABB Construction Engineering continues to improve the design and design process for nuclear generating stations. Potential improvements are evaluated to meet new requirements both of the public and the regulator, so that the designs meet the highest standards worldwide. Advancements necessary to meet market needs and to ensure the highest level of performance in the future will be made.

  17. (Nuclear power engineering in space)

    SciTech Connect (OSTI)

    Cooper, R.H. Jr.

    1990-06-18

    The principal purpose of this trip was to participate in the Anniversary Specialist Conference on Nuclear Power Engineering in Space hosted by the USSR Ministry of Atomic Power Engineering and Industry. The conference was held in Obninsk, USSR. A secondary purpose of the trip was to meet with the French Commissariat A L'Energie Atomique in Paris regarding the status of their space power program.

  18. Computational Sciences and Engineering Division

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    If you have questions or comments regarding any of our research and development activities, how to work with ORNL and the Computational Sciences and Engineering (CSE) Division, or the content of this website please contact one of the following people: If you have questions regarding CSE technologies and capabilities, job opportunities, working with ORNL and the CSE Division, intellectual property, etc., contact, Shaun S. Gleason, Ph.D. Division Director, Computational Sciences and Engineering

  19. Civil Engineer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Civil Engineer Civil Engineer Submitted by admin on Mon, 2016-08-08 00:15 Job Summary Organization Name Department Of Energy Agency SubElement Western Area Power Administration Locations Folsom, California Announcement Number WAPA-16-DE-240 Job Summary (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Sierra Nevada Region 114 Parkshore Drive Folsom, CA 95630 Find out more about living conditions at this duty station . Apply on

  20. Protein design for pathway engineering

    SciTech Connect (OSTI)

    Eriksen, DT; Lian, JZ; Zhao, HM

    2014-02-01

    Design and construction of biochemical pathways has increased the complexity of biosynthetically-produced compounds when compared to single enzyme biocatalysis. However, the coordination of multiple enzymes can introduce a complicated set of obstacles to overcome in order to achieve a high titer and yield of the desired compound. Metabolic engineering has made great strides in developing tools to optimize the flux through a target pathway, but the inherent characteristics of a particular enzyme within the pathway can still limit the productivity. Thus, judicious protein design is critical for metabolic and pathway engineering. This review will describe various strategies and examples of applying protein design to pathway engineering to optimize the flux through the pathway. The proteins can be engineered for altered substrate specificity/selectivity, increased catalytic activity, reduced mass transfer limitations through specific protein localization, and reduced substrate/product inhibition. Protein engineering can also be expanded to design biosensors to enable high through-put screening and to customize cell signaling networks. These strategies have successfully engineered pathways for significantly increased productivity of the desired product or in the production of novel compounds. (C) 2013 Elsevier Inc. All rights reserved.

  1. Bellcrank mechanisms for Stirling engines

    SciTech Connect (OSTI)

    Senft, J.R.; Senft, V.J.

    1996-12-31

    This paper describes a family of linkage drive systems for Stirling engines containing several new members. These mechanisms are adaptable to all three configurations of Stirling engine, impose minimal side loads on pistons and displacer rods, and include compact forms suitable for pressurized high performance engines. This group of drive systems is generated by a simple common scheme. Near sinusoidal motion is taken from a crankshaft carrying a single crankpin by two connecting rods each driving a bellcrank. The stationary pivots of the bellcranks are located so that their oscillatory motion has the phase angle separation required between the piston and displacer. The bellcranks are further configured to bring the third pin motion to a location suitable for coupling with the piston or displacer of the engine in a way which minimizes side loading. The paper presents a number of new linkage drives from the dual bellcrank family and indicates how they are embodied in beta and alpha type Stirling engines. The paper includes a design for a small multipurpose engine incorporating one of the subject mechanisms.

  2. Cleaning Up Diesel Engines | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Diesel Engines Cleaning Up Diesel Engines 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_witherspoon.pdf (333.11 KB) More Documents & Publications ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel Engines DIesel Emission Control Technology Developments The Need to Reduce Mobile Source Emissions in the South Coast Air Basin

  3. V160 Stirling engine program update

    SciTech Connect (OSTI)

    Johansson, L.; Torstensson, B.; Williams, T. Y.; Houtman, W.H.; Monahan, R.

    1988-01-01

    Development efforts being made toward the preproduction stage of the V160 Stirling engine are examined. The history of continued reliability encompassing all engine models is reviewed, and efforts towards engine manufacturing and cost reduction are addressed. A preview is given of the initial product line based on the V160 engine and substantiated through testing of the offered configurations.

  4. Sandia National Laboratories: Careers: Mechanical Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Mechanical Engineering Engineering photo Sandia mechanical engineers design and develop advanced components and systems for national-defense programs, homeland security, and other applications. Mechanical engineers at Sandia work on design, analysis, manufacturing, and test activities in many areas, including nuclear weapons and power, renewable energy, intelligent machines, robotics, pulsed power, missile defense, remote sensing, advanced manufacturing, and micro- and nanosystems. Sandia

  5. High Efficiency Engine Technologies | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technologies High Efficiency Engine Technologies The energy wasted in combustion process is a huge untapped resource and the recovery or conversion of this energy into useful power is a huge opportunity. deer09_nelson_2.pdf (285.08 KB) More Documents & Publications Innovative Approaches to Improving Engine Efficiency Overview of High-Efficiency Engine Technologies High Engine Efficiency at 2010 Emissions

  6. PL2ESIDCNI The District Engineer, U. S. Engineer Office,

    Office of Legacy Management (LM)

    w. -1. C1P.RSHAW PL2ESIDCNI The District Engineer, U. S. Engineer Office, Kanhattan liistrict, l-J. 0. Box 42, Station New York, N. Y. fi s Attention: Lt. L. C. Burman. Dear Sir: Agreeable to your verbal request, we offer you the following which are all the Uranium Compounds and Cermic Colors containing Uranium in our possession at, our various stock points. ,I ---L-z-- BIACY'C:fln;" URAXW (Approximately 9$ U33,) QOC3 lb. amer lb., f.o.b. East Liverpool, Ohio. ~500 lb. at $2.15 Fer lb.,

  7. Light-duty diesel engine development status and engine needs

    SciTech Connect (OSTI)

    Not Available

    1980-08-01

    This report reviews, assesses, and summarizes the research and development status of diesel engine technology applicable to light-duty vehicles. In addition, it identifies specific basic and applied research and development needs in light-duty diesel technology and related health areas where initial or increased participation by the US Government would be desirable. The material presented in this report updates information provided in the first diesel engine status report prepared by the Aerospace Corporation for the Department of Energy in September, 1978.

  8. Advanced engineering environment collaboration project.

    SciTech Connect (OSTI)

    Lamph, Jane Ann; Pomplun, Alan R.; Kiba, Grant W.; Dutra, Edward G.; Dankiewicz, Robert J.; Marburger, Scot J.

    2008-12-01

    The Advanced Engineering Environment (AEE) is a model for an engineering design and communications system that will enhance project collaboration throughout the nuclear weapons complex (NWC). Sandia National Laboratories and Parametric Technology Corporation (PTC) worked together on a prototype project to evaluate the suitability of a portion of PTC's Windchill 9.0 suite of data management, design and collaboration tools as the basis for an AEE. The AEE project team implemented Windchill 9.0 development servers in both classified and unclassified domains and used them to test and evaluate the Windchill tool suite relative to the needs of the NWC using weapons project use cases. A primary deliverable was the development of a new real time collaborative desktop design and engineering process using PDMLink (data management tool), Pro/Engineer (mechanical computer aided design tool) and ProductView Lite (visualization tool). Additional project activities included evaluations of PTC's electrical computer aided design, visualization, and engineering calculations applications. This report documents the AEE project work to share information and lessons learned with other NWC sites. It also provides PTC with recommendations for improving their products for NWC applications.

  9. Diesel Engine Light Truck Application

    SciTech Connect (OSTI)

    2007-12-31

    The Diesel Engine Light Truck Application (DELTA) program consists of two major contracts with the Department of Energy (DOE). The first one under DE-FC05-97-OR22606, starting from 1997, was completed in 2001, and consequently, a final report was submitted to DOE in 2003. The second part of the contract was under DE-FC05-02OR22909, covering the program progress from 2002 to 2007. This report is the final report of the second part of the program under contract DE-FC05-02OR22909. During the course of this contract, the program work scope and objectives were significantly changed. From 2002 to 2004, the DELTA program continued working on light-duty engine development with the 4.0L V6 DELTA engine, following the accomplishments made from the first part of the program under DE-FC05-97-OR22606. The program work scope in 2005-2007 was changed to the Diesel Particulate Filter (DPF) soot layer characterization and substrate material assessment. This final report will cover two major technical tasks. (1) Continuation of the DELTA engine development to demonstrate production-viable diesel engine technologies and to demonstrate emissions compliance with significant fuel economy advantages, covering progress made from 2002 to 2004. (2) DPF soot layer characterization and substrate material assessment from 2005-2007.

  10. Futuristic concepts in engines and components

    SciTech Connect (OSTI)

    1995-12-31

    This publication includes papers on two-stroke engines and components, Brayton Stirling and Otto Cycles, alternative cycles, advanced combustion, and other related topics. Contents include: Paving the way to controlled combustion engines (CCE); A new class of stratified-charge internal combustion engine; Internal combustion (IC) engine with minimum number of moving parts; New type of heat engine -- externally heated air engine; A porous media burner for reforming methanol for fuel cell powered electric vehicles; Using a Stirling engine simulation program as a regenerator design aid; In-cylinder regenerated engines; High speed electronic fuel injection for direct injected rotary engine; and The characteristics of fuel consumption and exhaust emissions of the side exhaust port rotary engine.

  11. Fuel quantity modulation in pilot ignited engines

    DOE Patents [OSTI]

    May, Andrew

    2006-05-16

    An engine system includes a first fuel regulator adapted to control an amount of a first fuel supplied to the engine, a second fuel regulator adapted to control an amount of a second fuel supplied to the engine concurrently with the first fuel being supplied to the engine, and a controller coupled to at least the second fuel regulator. The controller is adapted to determine the amount of the second fuel supplied to the engine in a relationship to the amount of the first fuel supplied to the engine to operate in igniting the first fuel at a specified time in steady state engine operation and adapted to determine the amount of the second fuel supplied to the engine in a manner different from the relationship at steady state engine operation in transient engine operation.

  12. Engine improvement and efficiency gained by teamwork

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engine improvement and efficiency gained by teamwork Engine improvement and efficiency gained by teamwork Together, Cummins and LANL have reduced costs and increased efficiency in diesel engines. April 3, 2012 Engine for R&D Research and development (R&D) efforts focus on improving engine efficiency while meeting future federal and state emissions regulations through a combination of: combustion technologies that minimize in-cylinder formation of emissions ...the company realized a more

  13. Improving Aircraft Engine Combustor Simulations | Argonne Leadership

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computing Facility Jet engine combustor design Pratt & Whitney is exploring leading-edge jet engine combustor design methods using the ALCF's Blue Gene/P. Improving Aircraft Engine Combustor Simulations PI Name: Peter Bradley PI Email: peter.c.bradley@pw.utc.com Institution: Pratt & Whitney Allocation Program: INCITE Allocation Hours at ALCF: 1.3 Million Year: 2008 Research Domain: Engineering A jet engine combustor combines air flowing faster than a hurricane with swirling fuel to

  14. Safety device for turbocharged engine

    SciTech Connect (OSTI)

    Kido, Y.

    1986-08-05

    A safety device is described for a turbocharged engine which is provided with a turbocharger comprising a turbine disposed in the exhaust passage and a blower disposed in the intake passage and connected with the turbine by way of a rotary shaft and in which the throttle valve is disposed in the intake passage downstream of the blower. The safety device consists of an engine protective means for controlling the maximum supercharging pressure in the intake passage, at least one pressure sensor for detecting the supercharging pressure downstream of the blower, and a control circuit which actuates the engine protective means when the supercharging pressure detected by the pressure sensor continues to be higher than a preset supercharging pressure for a predetermined time interval. The control circuit includes means for generating the predetermined time interval, the means for generating the predetermined time interval shortening the time interval as the difference between the detected supercharging pressure and the preset supercharging pressure increases.

  15. Self-pressurizing Stirling engine

    DOE Patents [OSTI]

    Bennett, Charles L.

    2010-10-12

    A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal contact with it so that heat is supplied from the thermal battery. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

  16. Steam boosted internal combustion engine

    SciTech Connect (OSTI)

    Green, M.A.

    1987-01-20

    A device is described to supplement the power produced by burning fuel in an internal combustion engine with steam, the device comprising: a means for producing a constant flow of water past a boiler means; a means for allowing the water to flow in the direction of the boiler; a boiler means external to the internal combustion engine to convert the water into superheated steam; a means for controlling the pressure of the water such that the water pressure is greater than the pressure of the steam produced by the boiler; and a means for injection of the superheated steam directly into a cylinder of the internal combustion engine, a means for producing a constant flow of water at a pressure greater than the pressure of the superheated steam, wherein the constant flow means at greater pressure comprises a chamber with a gaseous component, with the gaseous component being of constant volume and exerting constant pressure upon water within the chamber.

  17. Advanced System for Process Engineering

    Energy Science and Technology Software Center (OSTI)

    1992-02-01

    ASPEN (Advanced System for Process Engineering) is a state of the art process simulator and economic evaluation package which was designed for use in engineering fossil energy conversion processes. ASPEN can represent multiphase streams including solids, and handle complex substances such as coal. The system can perform steady state material and energy balances, determine equipment size and cost, and carry out preliminary economic evaluations. It is supported by a comprehensive physical property system for computationmore » of major properties such as enthalpy, entropy, free energy, molar volume, equilibrium ratio, fugacity coefficient, viscosity, thermal conductivity, and diffusion coefficient for specified phase conditions; vapor, liquid, or solid. The properties may be computed for pure components, mixtures, or components in a mixture, as appropriate. The ASPEN Input Language is oriented towards process engineers.« less

  18. Hydrogen hybrid vehicle engine development: Experimental program

    SciTech Connect (OSTI)

    Van Blarigan, P.

    1995-09-01

    A hydrogen fueled engine is being developed specifically for the auxiliary power unit (APU) in a series type hybrid vehicle. Hydrogen is different from other internal combustion (IC) engine fuels, and hybrid vehicle IC engine requirements are different from those of other IC vehicle engines. Together these differences will allow a new engine design based on first principles that will maximize thermal efficiency while minimizing principal emissions. The experimental program is proceeding in four steps: (1) Demonstration of the emissions and the indicated thermal efficiency capability of a standard CLR research engine modified for higher compression ratios and hydrogen fueled operation. (2) Design and test a new combustion chamber geometry for an existing single cylinder research engine, in an attempt to improve on the baseline indicated thermal efficiency of the CLR engine. (3) Design and build, in conjunction with an industrial collaborator, a new full scale research engine designed to maximize brake thermal efficiency. Include a full complement of combustion diagnostics. (4) Incorporate all of the knowledge thus obtained in the design and fabrication, by an industrial collaborator, of the hydrogen fueled engine for the hybrid vehicle power train illustrator. Results of the CLR baseline engine testing are presented, as well as preliminary data from the new combustion chamber engine. The CLR data confirm the low NOx produced by lean operation. The preliminary indicated thermal efficiency data from the new combustion chamber design engine show an improvement relative to the CLR engine. Comparison with previous high compression engine results shows reasonable agreement.

  19. Adaptive Systems Engineering: A Medical Paradigm for Practicing Systems Engineering

    SciTech Connect (OSTI)

    R. Douglas Hamelin; Ron D. Klingler; Christopher Dieckmann

    2011-06-01

    From its inception in the defense and aerospace industries, SE has applied holistic, interdisciplinary tools and work-process to improve the design and management of 'large, complex engineering projects.' The traditional scope of engineering in general embraces the design, development, production, and operation of physical systems, and SE, as originally conceived, falls within that scope. While this 'traditional' view has expanded over the years to embrace wider, more holistic applications, much of the literature and training currently available is still directed almost entirely at addressing the large, complex, NASA and defense-sized systems wherein the 'ideal' practice of SE provides the cradle-to-grave foundation for system development and deployment. Under such scenarios, systems engineers are viewed as an integral part of the system and project life-cycle from conception to decommissioning. In far less 'ideal' applications, SE principles are equally applicable to a growing number of complex systems and projects that need to be 'rescued' from overwhelming challenges that threaten imminent failure. The medical profession provides a unique analogy for this latter concept and offers a useful paradigm for tailoring our 'practice' of SE to address the unexpected dynamics of applying SE in the real world. In short, we can be much more effective as systems engineers as we change some of the paradigms under which we teach and 'practice' SE.

  20. Rotary reciprocating internal combustion engine

    SciTech Connect (OSTI)

    Ogren, W.

    1992-06-23

    This patent describes a rotary reciprocating internal combustion engine. It comprises a housing which comprises a cylindrical head with two end and frame plates mounted on both ends of the head enclose the head, the head including a pair of fuel into ports and a pair of exhaust ports, a pair of ring gears; a rotor axially aligned in the cylindrical head and comprising a set of four radially extending cylinders and pistons reciprocable in the cylinders; a power take off shaft fixed to the crank support plates and axially aligned with the rotor; oiling means for oiling the rotary engine; and a set of eight crank gears.

  1. Power control for heat engines

    DOE Patents [OSTI]

    Dineen, John J.

    1984-01-01

    A power control arrangement for a Stirling engine includes a sleeve mounted in each cylinder for axial movement and a port in the sleeve leading to a dead space. The port is covered by the piston at a position that is determined by the piston position and the axial adjustment of the sleeve. The compression phase of the Stirling cycle for that piston begins when the port is covered, so the position of the sleeve is used to set the Stirling engine power level.

  2. Advanced engineering environment pilot project.

    SciTech Connect (OSTI)

    Schwegel, Jill; Pomplun, Alan R.; Abernathy, Rusty

    2006-10-01

    The Advanced Engineering Environment (AEE) is a concurrent engineering concept that enables real-time process tooling design and analysis, collaborative process flow development, automated document creation, and full process traceability throughout a product's life cycle. The AEE will enable NNSA's Design and Production Agencies to collaborate through a singular integrated process. Sandia National Laboratories and Parametric Technology Corporation (PTC) are working together on a prototype AEE pilot project to evaluate PTC's product collaboration tools relative to the needs of the NWC. The primary deliverable for the project is a set of validated criteria for defining a complete commercial off-the-shelf (COTS) solution to deploy the AEE across the NWC.

  3. Vision 2020. Reaction Engineering Roadmap

    SciTech Connect (OSTI)

    Klipstein, David H.; Robinson, Sharon

    2001-01-01

    The Reaction Engineering Roadmap is a part of an industry- wide effort to create a blueprint of the research and technology milestones that are necessary to achieve longterm industry goals. This report documents the results of a workshop focused on the research needs, technology barriers, and priorities of the chemical industry as they relate to reaction engineering viewed first by industrial use (basic chemicals; specialty chemicals; pharmaceuticals; and polymers) and then by technology segment (reactor system selection, design, and scale-up; chemical mechanism development and property estimation; dealing with catalysis; and new, nonstandard reactor types).

  4. Efficiency bounds for nonequilibrium heat engines

    SciTech Connect (OSTI)

    Mehta, Pankaj; Polkovnikov, Anatoli

    2013-05-15

    We analyze the efficiency of thermal engines (either quantum or classical) working with a single heat reservoir like an atmosphere. The engine first gets an energy intake, which can be done in an arbitrary nonequilibrium way e.g. combustion of fuel. Then the engine performs the work and returns to the initial state. We distinguish two general classes of engines where the working body first equilibrates within itself and then performs the work (ergodic engine) or when it performs the work before equilibrating (non-ergodic engine). We show that in both cases the second law of thermodynamics limits their efficiency. For ergodic engines we find a rigorous upper bound for the efficiency, which is strictly smaller than the equivalent Carnot efficiency. I.e. the Carnot efficiency can be never achieved in single reservoir heat engines. For non-ergodic engines the efficiency can be higher and can exceed the equilibrium Carnot bound. By extending the fundamental thermodynamic relation to nonequilibrium processes, we find a rigorous thermodynamic bound for the efficiency of both ergodic and non-ergodic engines and show that it is given by the relative entropy of the nonequilibrium and initial equilibrium distributions. These results suggest a new general strategy for designing more efficient engines. We illustrate our ideas by using simple examples. -- Highlights: ? Derived efficiency bounds for heat engines working with a single reservoir. ? Analyzed both ergodic and non-ergodic engines. ? Showed that non-ergodic engines can be more efficient. ? Extended fundamental thermodynamic relation to arbitrary nonequilibrium processes.

  5. Building America Systems Engineering Approach

    SciTech Connect (OSTI)

    2011-12-15

    The Building America Research Teams use a systems engineering approach to achieve higher quality and energy savings in homes. Using these techniques, the energy consumption of new houses can be reduced by 40% or more with little or no impact on the cost of ownership.

  6. High temperature turbine engine structure

    DOE Patents [OSTI]

    Boyd, Gary L.

    1991-01-01

    A high temperature turbine engine includes a rotor portion having axially stacked adjacent ceramic rotor parts. A ceramic/ceramic joint structure transmits torque between the rotor parts while maintaining coaxial alignment and axially spaced mutually parallel relation thereof despite thermal and centrifugal cycling.

  7. High temperature turbine engine structure

    DOE Patents [OSTI]

    Boyd, Gary L.

    1990-01-01

    A high temperature turbine engine includes a hybrid ceramic/metallic rotor member having ceramic/metal joint structure. The disclosed joint is able to endure higher temperatures than previously possible, and aids in controlling heat transfer in the rotor member.

  8. High Efficiency Engine Technologies Program

    SciTech Connect (OSTI)

    Rich Kruiswyk

    2010-07-13

    Caterpillar's Product Development and Global Technology Division carried out a research program on waste heat recovery with support from DOE (Department of Energy) and the DOE National Energy Technology Laboratory. The objective of the program was to develop a new air management and exhaust energy recovery system that would demonstrate a minimum 10% improvement in thermal efficiency over a base heavy-duty on-highway diesel truck engine. The base engine for this program was a 2007 C15 15.2L series-turbocharged on-highway truck engine with a LPL (low-pressure loop) exhaust recirculation system. The focus of the program was on the development of high efficiency turbomachinery and a high efficiency turbocompound waste heat recovery system. The focus of each area of development was as follows: (1) For turbine stages, the focus was on investigation and development of technologies that would improve on-engine exhaust energy utilization compared to the conventional radial turbines in widespread use today. (2) For compressor stages, the focus was on investigating compressor wheel design parameters beyond the range typically utilized in production, to determine the potential efficiency benefits thereof. (3) For turbocompound, the focus was on the development of a robust bearing system that would provide higher bearing efficiencies compared to systems used in turbocompound power turbines in production. None of the turbocharger technologies investigated involved addition of moving parts, actuators, or exotic materials, thereby increasing the likelihood of a favorable cost-value tradeoff for each technology. And the turbocompound system requires less hardware addition than competing bottoming cycle technologies, making it a more attractive solution from a cost and packaging standpoint. Main outcomes of the program are as follows: (1) Two turbine technologies that demonstrated up to 6% improvement in turbine efficiency on gas stand and 1-3% improvement in thermal efficiency in

  9. HCCI in a Variable Compression Ratio Engine: Effects of Engine Variables |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy in a Variable Compression Ratio Engine: Effects of Engine Variables HCCI in a Variable Compression Ratio Engine: Effects of Engine Variables 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Southwest Research Institute 2004_deer_ryan.pdf (410.71 KB) More Documents & Publications HCCI - A Technical Review and Progress Report 2006 HCCI - Update of Progress 2005 Fuel Requirements for HCCI Engine Operation

  10. Optimization of Engine-out Emissions from a Diesel Engine to...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    from a Diesel Engine to Meet Tier 2 Bin 5 Emission Limits Drastic reduction of engine-out emissions and complicated aftertreatment system comprising of oxidation catalyst, ...

  11. Two-Stroke Engines: New Frontier in Engine Efficiency | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Engines: New Frontier in Engine Efficiency Two-Stroke Engines: New Frontier in Engine Efficiency Companies are revisiting two-stroke engines in the hopes of finding a new frontier in engine efficiency without the additional cost. But, not all two-stroke engines are the same. p-21_regner.pdf (187.19 KB) More Documents & Publications The Opposed-Piston Two-Stroke Engine Alternative: Performance and Emissions Results in a Medium-Duty Application Challenging Conventional Wisdom: A

  12. Alvar variable compression engine development. Final report

    SciTech Connect (OSTI)

    1998-03-30

    The Alvar engine is an invention by Mr. Alvar Gustafsson of Skarblacka, Sweden. It is a four stroke spark ignition internal combustion engine, having variable compression ratio and variable displacements. The compression ratio can be varied by means of small secondary cylinders and pistons which are communicating with the main combustion chambers. The secondary pistons can be phase shifted with respect to the main pistons. The engine is suitable for multi-fuel operation. Invention rights are held by Alvar Engine AB of Sweden, a company created to handle the development of the Alvar Engine. A project was conceived wherein an optimised experimental engine would be built and tested to verify the advantages claimed for the Alvar engine and also to reveal possible drawbacks, if any. Alvar Engine AB appointed Gunnar Lundholm, professor of Combustion Engines at Lund University, Lund, Sweden as principal investigator. The project could be seen as having three parts: (1) Optimisation of the engine combustion chamber geometry; (2) Design and manufacturing of the necessary engine parts; and (3) Testing of the engine in an engine laboratory NUTEK, The Swedish Board for Industrial and Technical Development granted Gunnar Lundholm, SEK 50000 (about $6700) to travel to the US to evaluate potential research and development facilities which seemed able to perform the different project tasks.

  13. Environmental Engineering & Water Resources Engineering Research at UNM

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Coupled thermal-mechanical-hydrologic behavior of consolidating granular salt John C. Stormont Department of Civil Engineering University of New Mexico jcstorm@unm.edu NEUP project 13-4834 2 Aayush Piya Melissa Mills Brandon Lampe Timothy Lynn Laxmi Paneru Collaboration between UNM and SNL Consolidation measurements 3 Temperature Stress state Moisture Principal variables Time Consolidation transforms granular material into competent mass 4 Consolidation Post consolidation testing 5 Thermal

  14. A systems engineering primer for every engineer and scientist

    SciTech Connect (OSTI)

    Edwards, William R.

    2001-12-10

    The Systems Engineering (SE) staff at LBNL has generated the following artifacts to assist projects with implementing a systems approach: (1) The present document that focuses on the what, why, and when of SE. It also provides a simple case-study to illustrate several SE tasks. (2) A web site with primary emphasis on the project life-cycle and workflow, (http://www-eng.LBNL.gov/Systems/index.html). It includes: SE guidelines and principles; A list of in-house tools; Templates; Case studies with ''how to'' examples; and Links to useful SE material. These sources are living documents to be updated as necessary. The viewpoint adopted in this document is that what LBNL engineers and scientists need is a set of principles and guiding practices for developing R and D systems rather than a ''cookbook''. There are many excellent ''how to'' resources such as the ''INCOSE Systems Engineering Handbook'' to guide those in search of more details. The SE staff is another resource available to consult and support projects. This document specifies SE principles and activities that are applicable to all LBNL projects independent of their specific differences. Each project should tailor the SE implementation to meet its individual needs and culture including project-specific resources, procedures, products, and tools.

  15. BPM Diesel Engineering | Open Energy Information

    Open Energy Info (EERE)

    Kingdom Zip: WR12 7NL Product: Converts diesel engines to operate on Dual Fuel using a digital generic system. References: BPM Diesel Engineering1 This article is a stub. You can...

  16. Engineer Joins Esteemed Fellows with Celebrated Contributions

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – EM Office of River Protection’s (ORP) Raman Venkata, a structural safety system oversight engineer, was selected as an American Society of Civil Engineers fellow.

  17. Guides: Design/Engineering for Deactivation & Decommissioning

    Broader source: Energy.gov [DOE]

    To ensure development of appropriate levels of engineering detail, DOE-EM’s Office of Deactivation and Decommissioning and Facility Engineering (EM-13) has prepared this guidance for  tailoring a D...

  18. Yucca Mountain Science and Engineering Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    Yucca Mountain Science and Engineering Report describes the results of scientific and engineering studies of the Yucca Mountain site, the waste forms to be disposed, the repository and waste...

  19. A reciprocating rotating-block engine

    SciTech Connect (OSTI)

    O`Connor, L.

    1995-06-01

    This article describes the Newbold power plant, a lightweight, clean burning, and efficient engine that is designed to be used in a variety of small-engine applications, from ultralight planes to wheelchairs. A new turbo rotary-power engine brings together different design concepts from engine technology, including the rotary motion of a block, which is applied in a rotary engine, and the reciprocating motion of pistons. The new power plant also uses an air delivery system that operates similar to a turbojet engine. The turbo rotary-power engine, developed by Vernon Newbold, founder of Newbold and Associates, in Lyons, CO, produces power from the heat generated by combustion of most liquid or gaseous fuels. Production engines, expected to be built in August, will be optimized to operate using diesel fuel.

  20. Dade Engineering: Order (2013-CE-5316)

    Broader source: Energy.gov [DOE]

    DOE ordered Dade Engineering Corp. to pay a $8,000 civil penalty after finding Dade Engineering had failed to certify that certain models of walk-in cooler and freezer (WICF) components comply with the applicable energy conservation standards.