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1

Remedial System Performance Improvement for the 200-ZP-1_PW-1 Operable Units at Hanford  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hanford Operations Review Report: Feasibility Study Strategies and Remedial System Performance Improvement for the 200- ZP-1/PW-1 Operable Units at Hanford Prepared for Office of Groundwater and Soil Remediation Office of Environmental Management February 9, 2007 i EXECUTIVE SUMMARY At the request of the U.S. Department of Energy, Headquarters' Office of Environmental Management, the Office of Groundwater and Soil Remediation (EM-22), performed a Remediation System Evaluation (RSE) of the 200-ZP-1/PW-1 groundwater pump and treat (P&T) system, as well as the vadose zone Soil Vapor Extraction (SVE) system at the Hanford

2

Summary - Remedial System Performance Improvement for the 200...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Plateau. The primary contaminant of concern (COC) is CT and to a lesser extent technetium-99 (Tc-99). The groundwater extraction system consists of ten wells with capacity of...

3

Remedial Action Performed  

Office of Legacy Management (LM)

General Motors Site in General Motors Site in Adrian, Michigan Department of Energy OiZce of Assistant Manager for Environmental Management Oak Ridge Operations January 2001 69 Printed on recycledhcydable paper. CERTIFICATION DOCKET FOR THE REMEDIAL ACTION PERFORMED AT THE GENERAL MOTORS SITE ADRIAN, MICHIGAN JANUARY 200 1 Prepared for United States Army Corps of Engineers Under Contract No. DACW45-98-D-0028 BY Bechtel National, Inc. Oak Ridge, Tennessee Bechtel Job No. 14501 CONTENTS FIGURES .............................................................................................................................................. TABLES ...............................................................................................................................................

4

Remedial Action Performed  

Office of Legacy Management (LM)

Aliquippa Forge Site Aliquippa Forge Site in Aliquippa, Pennsylvania Department of Energy Former Sites Restoration Division Oak Ridge Operations Office November 1996 CERTIFICATION DOCKE.~ FOR THE REMEDIAL ACTION PERFORMED AT THE ALIQUIPPA FORGE SITE IN ALIQUIPPA, PENNSYLVANIA NOVEMBER 1996 Prepared for . UNITED STATES DEPARTMENT OF ENERGY Oak Ridge Operations Office Under Contract No. DE-AC05-9 1 OR2 1949 Bechtel National, Inc. Oak Ridge, Tennessee Bechtel Job No. 14501 CONTENTS Page FIGURES v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLES vii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ACRONYMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii UNITSOFMEASURE ix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INTRODUCTION xi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

Remedial Action Performed  

Office of Legacy Management (LM)

Baker and Williams Baker and Williams Warehouses Site in New York, New York, 7997 - 7993 Department of Energy Former Sites Restoration Division Oak Ridge Operations Office November 7 995 CERTIFICATION DOCKET FOR THE REMEDIAL ACTION PERFORMED AT THE BAKER AND WILLIAMS WAREHOUSES SITE IN NEW YORK, NEW YORK, 1991-1993 NOVEMBER 1995 Prepared for United States Department of Energy Oak Ridge Operations Office Under Contract No. DE-AC05-910R21949 BY Bechtel National, Inc. Oak Ridge, Tennessee Bechtel Job No. 14501 __ CONTENTS .- ~_- _- ..- ^_ FIGURES . ...,.,.....,,........,,.,_.....,.,.,.__,....,,,,, v TABLES ,.,__...,,....,..._._..,,,,_._...,.,.,,.,,,..._,,,, vi ACRONYMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..v~

6

Remedial Action Performed  

Office of Legacy Management (LM)

' ' at the C. H. Schnoor Site, Springdale, Pennsylvania, in 1 994 Department of Energy Former Sites Restoration Division Oak Ridge Operations Office November 1996 CERTIFICATION DOCKET FOR THE REMEDIAL ACTION PERFORMED AT THE C. H. SCHNOOR SITE SPRINGDALE, PENNSYLVANIA, IN 1994 NOVEMBER 1996 prep&ed for United States Department of ~nergy Oak Ridge Operations Off= r Under Contract No. DE-AC05-910R21949 Bechtel National, Inc. Oak Ridge, Tennessee Bechtel Job No. '14501 CONTENTS FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v ACRONYMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi UNITS OF MEASURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

7

Remedial Action Performed  

Office of Legacy Management (LM)

Alba Craft Laboratory and Alba Craft Laboratory and Vicinity Properties Site in Oxford, Ohio C Department of Energy Former Sites Restoration Division Oak Ridge Operations Office January 1997 $$@T Op% 3 @!B . i~d!l Ab Printed on recycled/recyclable paper. CERTIFICATION DOCKET FOR THE REMEDIAL ACTION PERFORMED AT THE FORMER ALBA CRAFT LABORATORY AND VICINITY PROPERTIES SITE IN OXFORD, OHIO JANUARY 1997 Prepared for United States Department of Energy Oak Ridge Operations Office Under Contract No. DE-AC0591 OR2 1949 Bechtel National, Inc. Oak Ridge, Tennessee Bechtel Job No. 14501 CONTENTS Page FIGURES .............................................................................................................................................. v TABLES.. .............................................................................................................................................. vi

8

Tank waste remediation system configuration management plan  

SciTech Connect

The configuration management program for the Tank Waste Remediation System (TWRS) Project Mission supports management of the project baseline by providing the mechanisms to identify, document, and control the functional and physical characteristics of the products. This document is one of the tools used to develop and control the mission and work. It is an integrated approach for control of technical, cost, schedule, and administrative information necessary to manage the configurations for the TWRS Project Mission. Configuration management focuses on five principal activities: configuration management system management, configuration identification, configuration status accounting, change control, and configuration management assessments. TWRS Project personnel must execute work in a controlled fashion. Work must be performed by verbatim use of authorized and released technical information and documentation. Application of configuration management will be consistently applied across all TWRS Project activities and assessed accordingly. The Project Hanford Management Contract (PHMC) configuration management requirements are prescribed in HNF-MP-013, Configuration Management Plan (FDH 1997a). This TWRS Configuration Management Plan (CMP) implements those requirements and supersedes the Tank Waste Remediation System Configuration Management Program Plan described in Vann, 1996. HNF-SD-WM-CM-014, Tank Waste Remediation System Configuration Management Implementation Plan (Vann, 1997) will be revised to implement the requirements of this plan. This plan provides the responsibilities, actions and tools necessary to implement the requirements as defined in the above referenced documents.

Vann, J.M.

1998-01-08T23:59:59.000Z

9

Tank waste remediation system engineering plan  

SciTech Connect

This Engineering Plan describes the engineering process and controls that will be in place to support the Technical Baseline definition and manage its evolution and implementation to the field operations. This plan provides the vision for the engineering required to support the retrieval and disposal mission through Phase 1 and 2, which includes integrated data management of the Technical Baseline. Further, this plan describes the approach for moving from the ``as is`` condition of engineering practice, systems, and facilities to the desired ``to be`` configuration. To make this transition, Tank Waste Remediation System (TWRS) Engineering will become a center of excellence for TWRS which,will perform engineering in the most effective manner to meet the mission. TWRS engineering will process deviations from sitewide systems if necessary to meet the mission most effectively.

Rifaey, S.H.

1998-01-09T23:59:59.000Z

10

Tank waste remediation system mission analysis report  

SciTech Connect

This document describes and analyzes the technical requirements that the Tank Waste Remediation System (TWRS) must satisfy for the mission. This document further defines the technical requirements that TWRS must satisfy to supply feed to the private contractors` facilities and to store or dispose the immobilized waste following processing in these facilities. This document uses a two phased approach to the analysis to reflect the two-phased nature of the mission.

Acree, C.D.

1998-01-09T23:59:59.000Z

11

Tank waste remediation system nuclear criticality safety program management review  

SciTech Connect

This document provides the results of an internal management review of the Tank Waste Remediation System (TWRS) criticality safety program, performed in advance of the DOE/RL assessment for closure of the TWRS Nuclear Criticality Safety Issue, March 1994. Resolution of the safety issue was identified as Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) Milestone M-40-12, due September 1999.

BRADY RAAP, M.C.

1999-06-24T23:59:59.000Z

12

Hanford site tank waste remediation system programmatic environmental review report  

Science Conference Proceedings (OSTI)

The US Department of Energy (DOE) committed in the Tank Waste Remediation System (TWRS) Environmental Impact Statement (EIS) Record of Decision (ROD) to perform future National Environmental Policy Act (NEPA) analysis at key points in the Program. Each review will address the potential impacts that new information may have on the environmental impacts presented in the TWRS EIS and support an assessment of whether DOE`s plans for remediating the tank waste are still pursuing the appropriate plan for remediation or whether adjustments to the program are needed. In response to this commitment, DOE prepared a Supplement Analysis (SA) to support the first of these reevaluations. Subsequent to the completion of the SA, the Phase IB negotiations process with private contractors resulted in several changes to the planned approach. These changes along with other new information regarding the TWRS Program have potential implications for Phase 1 and Phase 2 of tank waste retrieval and waste storage and/or disposal that may influence the environmental impacts of the Phased Implementation alternative. This report focuses on identifying those potential environmental impacts that may require NEPA analysis prior to authorization to begin facility construction and operations.

Haass, C.C.

1998-09-03T23:59:59.000Z

13

Tank waste remediation system systems engineering management plan  

Science Conference Proceedings (OSTI)

This Systems Engineering Management Plan (SEMP) describes the Tank Waste Remediation System (TWRS) implementation of the US Department of Energy (DOE) systems engineering policy provided in 97-IMSD-193. The SEMP defines the products, process, organization, and procedures used by the TWRS Project to implement the policy. The SEMP will be used as the basis for tailoring the systems engineering applications to the development of the physical systems and processes necessary to achieve the desired end states of the program. It is a living document that will be revised as necessary to reflect changes in systems engineering guidance as the program evolves. The US Department of Energy-Headquarters has issued program management guidance, DOE Order 430. 1, Life Cycle Asset Management, and associated Good Practice Guides that include substantial systems engineering guidance.

Peck, L.G.

1998-01-08T23:59:59.000Z

14

In-situ remediation system for groundwater and soils  

DOE Patents (OSTI)

The present invention relates to a system for in-situ remediation of contaminated groundwater and soil. In particular the present invention relates to stabilizing toxic metals in groundwater and soil. The United States Government has rights in this invention pursuant to Contract No. DE-AC09-89SR18035 between the US Department of Energy and Westinghouse Savannah River Company.

Corey, J.C.; Kaback, D.S.; Looney, B.B.

1991-01-01T23:59:59.000Z

15

Tank waste remediation system environmental program plan  

SciTech Connect

This Environmental Program Plan has been developed in support of the Integrated Environmental, Safety and Health Management System and consistent with the goals of DOE/RL-96-50, Hanford Strategic Plan (RL 1996a), and the specifications and guidance for ANSI/ISO 14001-1996, Environmental Management Systems Specification with guidance for use (ANSI/ISO 1996).

Borneman, L.E.

1998-01-09T23:59:59.000Z

16

Long term performance of different radon remedial methods in Sweden  

E-Print Network (OSTI)

The object of this project was to investigate the long time effectiveness of different radon remedial methods. The ten years project started 1991. From start the investigation comprised of 105 dwellings (91 single-family houses and 14 flats in multi-family buildings). In all of the dwellings remedial measures were carried out in the eighties. Before and immediately after the reduction the local measured the radon concentrations. New measurements of the radon concentrations have been made every third year; in 1991, 1994, 1997 and in 2000. Twelve different radon remedial methods and method combinations were used. The radon sources were building materials as well as sub-soils. In all of the dwellings the radon concentrations were measured by nuclear track films during 3 months (January-March) measurements and in half of them the air change rates by passive tracer gas methods. The results of the 2000 and the 1991 (within brackets) studies showed that the radon concentration was up to 200 Bq/m sup 3 in 54 (54) sin...

Clavensjoe, B

2002-01-01T23:59:59.000Z

17

Tandem microwave waste remediation and decontamination system  

DOE Patents (OSTI)

The invention discloses a tandem microwave system consisting of a primary chamber in which microwave energy is used for the controlled combustion of materials. A second chamber is used to further treat the off-gases from the primary chamber by passage through a susceptor matrix subjected to additional microwave energy. The direct microwave radiation and elevated temperatures provide for significant reductions in the qualitative and quantitative emissions of the treated off gases. The tandem microwave system can be utilized for disinfecting wastes, sterilizing materials, and/or modifying the form of wastes to solidify organic or inorganic materials. The simple design allows on-site treatment of waste by small volume waste generators.

Wicks, George G. (North Aiken, SC); Clark, David E. (Gainesville, FL); Schulz, Rebecca L. (Gainesville, FL)

1999-01-01T23:59:59.000Z

18

Gasification Systems Projects & Performers  

NLE Websites -- All DOE Office Websites (Extended Search)

Gasification Systems Gasification Systems Projects & Performers Gasification Systems - Key Technologies Feed Systems Gasifier Optimization and Plant Supporting Systems Syngas...

19

Method and system for extraction of chemicals from aquifer remediation effluent water  

DOE Patents (OSTI)

A method and system for extraction of chemicals from an groundwater remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating groundwater contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.

McMurtrey, Ryan D. (Idaho Falls, ID); Ginosar, Daniel M. (Idaho Falls, ID); Moor, Kenneth S. (Idaho Falls, ID); Shook, G. Michael (Idaho Falls, ID); Barker, Donna L. (Idaho Falls, ID)

2003-01-01T23:59:59.000Z

20

Tank Waste Remediation System decisions and risk assessment  

SciTech Connect

The Tank Waste Remediation System (TWRS) mission is to store, treat, and immobilize the highly radioactive Hanford Site tank wastes and encapsulated cesium and strontium materials in an environmentally sound, safe, and cost effective manner. Additionally, the TWRS conducts, as part of this mission, resolution of safety issues associated with the wastes within the 177 underground radioactive waste tanks. Systems engineering principles are being applied to determine the functions and establish requirements necessary for accomplishing the TWRS mission (DOE 1994 draft). This systematic evaluation of the TWRS program has identified key decisions that must be executed to establish mission scope, determine requirements, or select a technical solution for accomplishing identified functions and requirements. Key decisions identified through the systematic evaluation of the TWRS mission are presented in this document. Potential alternative solutions to each decision are discussed. After-discussion and evaluation of each decision with effected stakeholder groups, the US Department of Energy (DOE) will select a solution from the identified alternatives for implementation. In order to proceed with the development and execution of the tank waste remediation program, the DOE has adopted a planning basis for several of these decisions, until a formal basis is established. The planning bases adopted by the DOE is continuing to be discussed with stakeholder groups to establish consensus for proceeding with proposed actions. Technical and programmatic risks associated with the planning basis adopted by the DOE are discussed.

Johnson, M.E.

1994-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Tank waste remediation system functions and requirements document  

Science Conference Proceedings (OSTI)

This is the Tank Waste Remediation System (TWRS) Functions and Requirements Document derived from the TWRS Technical Baseline. The document consists of several text sections that provide the purpose, scope, background information, and an explanation of how this document assists the application of Systems Engineering to the TWRS. The primary functions identified in the TWRS Functions and Requirements Document are identified in Figure 4.1 (Section 4.0) Currently, this document is part of the overall effort to develop the TWRS Functional Requirements Baseline, and contains the functions and requirements needed to properly define the top three TWRS function levels. TWRS Technical Baseline information (RDD-100 database) included in the appendices of the attached document contain the TWRS functions, requirements, and architecture necessary to define the TWRS Functional Requirements Baseline. Document organization and user directions are provided in the introductory text. This document will continue to be modified during the TWRS life-cycle.

Carpenter, K.E

1996-10-03T23:59:59.000Z

22

Decision and systems analysis for underground storage tank waste retrieval systems and tank waste remediation system  

SciTech Connect

Hanford`s underground tanks (USTs) pose one of the most challenging hazardous and radioactive waste problems for the Department of Energy (DOE). Numerous schemes have been proposed for removing the waste from the USTs, but the technology options for doing this are largely unproven. To help assess the options, an Independent Review Group (IRG) was established to conduct a broad review of retrieval systems and the tank waste remediation system. The IRG consisted of the authors of this report.

Bitz, D.A. [Independent Consultant, Kirkland, WA (United States); Berry, D.L. [Sandia National Labs., Albuquerque, NM (United States); Jardine, L.J. [Lawrence Livermore National Lab., CA (United States)

1994-03-01T23:59:59.000Z

23

Environmental Restoration Program pollution prevention performance measures for FY 1993 and 1994 remedial investigations  

Science Conference Proceedings (OSTI)

The Martin Marietta Energy Systems, Inc., Environmental Restoration (ER) Program adopted a Pollution Prevention Program in March 1991. The program's mission is to minimize waste and prevent pollution in remedial investigations (RI), feasibility studies (FS), decontamination and decommissioning (D D), and surveillance and maintenance (S M) site program activities. Mission success will result in volume and/or toxicity reduction of generated waste. Energy Systems is producing a fully developed a Numerical Scoring System (NSS) and actually scoring the generators of Investigation Derived Waste (IDW) at six ER sites: Oak Ridge National Laboratory (ORNL), the Oak Ridge Y-12 Plant, the Oak Ridge K-25 site, Paducah Gaseous Diffusion Plant (Paducah), and Portsmouth Uranium Enrichment Complex (Portsmouth). This report summarizes the findings of this initial numerical scoring evaluation and shows where improvements in the overall ER Pollution prevention program may be required. This report identifies a number of recommendations that, if implemented, would help to improve site-performance measures. The continued development of the NSS will support generators in maximizing their Pollution Prevention/Waste Minimization efforts. Further refinements of the NSS, as applicable suggest comments and/or recommendations for improvement.

Not Available

1993-03-01T23:59:59.000Z

24

Environmental Restoration Program pollution prevention performance measures for FY 1993 and 1994 remedial investigations  

Science Conference Proceedings (OSTI)

The Martin Marietta Energy Systems, Inc., Environmental Restoration (ER) Program adopted a Pollution Prevention Program in March 1991. The program`s mission is to minimize waste and prevent pollution in remedial investigations (RI), feasibility studies (FS), decontamination and decommissioning (D&D), and surveillance and maintenance (S&M) site program activities. Mission success will result in volume and/or toxicity reduction of generated waste. Energy Systems is producing a fully developed a Numerical Scoring System (NSS) and actually scoring the generators of Investigation Derived Waste (IDW) at six ER sites: Oak Ridge National Laboratory (ORNL), the Oak Ridge Y-12 Plant, the Oak Ridge K-25 site, Paducah Gaseous Diffusion Plant (Paducah), and Portsmouth Uranium Enrichment Complex (Portsmouth). This report summarizes the findings of this initial numerical scoring evaluation and shows where improvements in the overall ER Pollution prevention program may be required. This report identifies a number of recommendations that, if implemented, would help to improve site-performance measures. The continued development of the NSS will support generators in maximizing their Pollution Prevention/Waste Minimization efforts. Further refinements of the NSS, as applicable suggest comments and/or recommendations for improvement.

Not Available

1993-03-01T23:59:59.000Z

25

The Hanford site tank waste remediation system technical strategy  

SciTech Connect

The US Department of Energy`s Hanford Site, located in southeastern Washington State, has the most diverse and largest amount of radioactive tank the United States. High-level radioactive waste has been stored in large underground tanks since 1944. Approximately 230,000 m{sup 3} (61 Mgal) of caustic liquids, slurries, saltcakes, and sludges have accumulated in 177 tanks. In addition, significant amounts of {sup 90}S and {sup 137}Cs were removed from the tank waste, converted to salts, doubly encapsulated in metal containers, and stored in water basins. A Tank Waste Remediation System Program was established by the US DOE Energy in 1991 to safely manage and immobilize these wastes for permanent disposal of the high-level waste fraction in a geologic repository. The technical strategy to manage and dispose of these wastes has been revised and successfully negotiated with the regulatory agencies.

Wodrich, D.D.

1994-04-01T23:59:59.000Z

26

Petroleum-contaminated groundwater remediation systems design: A data envelopment analysis based approach  

Science Conference Proceedings (OSTI)

Groundwater contamination is one of important environmental problems at petroleum-related sites, which is causing more and more attention. It can bring serious adverse effects on the environment and human health. Design of a groundwater remediation system ... Keywords: Cross-efficiency, Data envelopment analysis, Groundwater remediation systems design, Super-efficiency

Xiaodong Zhang; Guo H. Huang; Qianguo Lin; Hui Yu

2009-04-01T23:59:59.000Z

27

Tank waste remediation system retrieval and disposal mission initial updated baseline summary  

Science Conference Proceedings (OSTI)

This document provides a summary of the proposed Tank Waste Remediation System Retrieval and Disposal Mission Initial Updated Baseline (scope, schedule, and cost) developed to demonstrate the Tank Waste Remediation System contractor`s Readiness-to-Proceed in support of the Phase 1B mission.

Swita, W.R.

1998-01-05T23:59:59.000Z

28

In-situ remediation system for groundwater and soils  

DOE Patents (OSTI)

A method and system are presented for in-situ remediation of contaminated groundwater and soil where the contaminants, such as toxic metals, are carried in a subsurface plume. The method comprises selection and injection into the soil of a fluid that will cause the contaminants to form stable, non-toxic compounds either directly by combining with the contaminants or indirectly by creating conditions in the soil or changing the conditions of the soil so that the formation of stable, non-toxic compounds between the contaminants and existing substances in the soil are more favorable. In the case of non-toxic metal contaminants, sulfides or sulfates are injected so that metal sulfides or sulfates are formed. Alternatively, an inert gas may be injected to stimulate microorganisms in the soil to produce sulfides which, in turn, react with the metal contaminants. Preferably, two wells are used, one to inject the fluid and one to extract the unused portion of the fluid. The two wells work in combination to create a flow of the fluid across the plume to achieve better, more rapid mixing of the fluid and the contaminants. 4 figures.

Corey, J.C.; Kaback, D.S.; Looney, B.B.

1993-11-23T23:59:59.000Z

29

In-situ remediation system for groundwater and soils  

DOE Patents (OSTI)

A method and system for in-situ remediation of contaminated groundwater and soil where the contaminants, such as toxic metals, are carried in a subsurface plume. The method comprises selection and injection into the soil of a fluid that will cause the contaminants to form stable, non-toxic compounds either directly by combining with the contaminants or indirectly by creating conditions in the soil or changing the conditions of the soil so that the formation of stable, non-toxic compounds between the contaminants and existing substances in the soil are more favorable. In the case of non-toxic metal contaminants, sulfides or sulfates are injected so that metal sulfides or sulfates are formed. Alternatively, an inert gas may be injected to stimulate microorganisms in the soil to produce sulfides which, in turn, react with the metal contaminants. Preferably, two wells are used, one to inject the fluid and one to extract the unused portion of the fluid. The two wells work in combination to create a flow of the fluid across the plume to achieve better, more rapid mixing of the fluid and the contaminants.

Corey, John C. (212 Lakeside Dr., Aiken, SC 29803); Kaback, Dawn S. (1932 Cottonwood Dr., Aiken, SC 29803); Looney, Brian B. (1135 Ridgemont Dr., Aiken, SC 29803)

1993-01-01T23:59:59.000Z

30

Tank waste remediation system integrated technology plan. Revision 2  

SciTech Connect

The Hanford Site, located in southeastern Washington State, is operated by the US Department of Energy (DOE) and its contractors. Starting in 1943, Hanford supported fabrication of reactor fuel elements, operation of production reactors, processing of irradiated fuel to separate and extract plutonium and uranium, and preparation of plutonium metal. Processes used to recover plutonium and uranium from irradiated fuel and to recover radionuclides from tank waste, plus miscellaneous sources resulted in the legacy of approximately 227,000 m{sup 3} (60 million gallons) of high-level radioactive waste, currently in storage. This waste is currently stored in 177 large underground storage tanks, 28 of which have two steel walls and are called double-shell tanks (DSTs) an 149 of which are called single-shell tanks (SSTs). Much of the high-heat-emitting nuclides (strontium-90 and cesium-137) has been extracted from the tank waste, converted to solid, and placed in capsules, most of which are stored onsite in water-filled basins. DOE established the Tank Waste Remediation System (TWRS) program in 1991. The TWRS program mission is to store, treat, immobilize and dispose, or prepare for disposal, the Hanford tank waste in an environmentally sound, safe, and cost-effective manner. Technology will need to be developed or improved to meet the TWRS program mission. The Integrated Technology Plan (ITP) is the high-level consensus plan that documents all TWRS technology activities for the life of the program.

Eaton, B.; Ignatov, A.; Johnson, S.; Mann, M.; Morasch, L.; Ortiz, S.; Novak, P. [eds.] [Pacific Northwest Lab., Richland, WA (United States)

1995-02-28T23:59:59.000Z

31

Tank waste remediation system process engineering instruction manual  

SciTech Connect

The purpose of the Tank Waste Remediation System (TWRS) Process Engineering Instruction Manual is to provide guidance and direction to TWRS Process Engineering staff regarding conduct of business. The objective is to establish a disciplined and consistent approach to business such that the work processes within TWRS Process Engineering are safe, high quality, disciplined, efficient, and consistent with Lockheed Martin Hanford Corporation Policies and Procedures. The sections within this manual are of two types: for compliance and for guidance. For compliance sections are intended to be followed per-the-letter until such time as they are formally changed per Section 2.0 of this manual. For guidance sections are intended to be used by the staff for guidance in the conduct of work where technical judgment and discernment are required. The guidance sections shall also be changed per Section 2.0 of this manual. The required header for each manual section is illustrated in Section 2.0, Manual Change Control procedure. It is intended that this manual be used as a training and indoctrination resource for employees of the TWRS Process Engineering organization. The manual shall be required reading for all TWRS Process Engineering staff, matrixed, and subcontracted employees.

ADAMS, M.R.

1998-11-04T23:59:59.000Z

32

Tank waste remediation system multi-year work plan  

SciTech Connect

The Tank Waste Remediation System (TWRS) Multi-Year Work Plan (MYWP) documents the detailed total Program baseline and was constructed to guide Program execution. The TWRS MYWP is one of two elements that comprise the TWRS Program Management Plan. The TWRS MYWP fulfills the Hanford Site Management System requirement for a Multi-Year Program Plan and a Fiscal-Year Work Plan. The MYWP addresses program vision, mission, objectives, strategy, functions and requirements, risks, decisions, assumptions, constraints, structure, logic, schedule, resource requirements, and waste generation and disposition. Sections 1 through 6, Section 8, and the appendixes provide program-wide information. Section 7 includes a subsection for each of the nine program elements that comprise the TWRS Program. The foundation of any program baseline is base planning data (e.g., defendable product definition, logic, schedules, cost estimates, and bases of estimates). The TWRS Program continues to improve base data. As data improve, so will program element planning, integration between program elements, integration outside of the TWRS Program, and the overall quality of the TWRS MYWP. The MYWP establishes the TWRS baseline objectives to store, treat, and immobilize highly radioactive Hanford waste in an environmentally sound, safe, and cost-effective manner. The TWRS Program will complete the baseline mission in 2040 and will incur costs totalling approximately 40 billion dollars. The summary strategy is to meet the above objectives by using a robust systems engineering effort, placing the highest possible priority on safety and environmental protection; encouraging {open_quotes}out sourcing{close_quotes} of the work to the extent practical; and managing significant but limited resources to move toward final disposition of tank wastes, while openly communicating with all interested stakeholders.

Not Available

1994-09-01T23:59:59.000Z

33

Tank waste remediation system retrieval and disposal mission waste feed delivery plan  

Science Conference Proceedings (OSTI)

This document is a plan presenting the objectives, organization, and management and technical approaches for the Waste Feed Delivery (WFD) Program. This WFD Plan focuses on the Tank Waste Remediation System (TWRS) Project`s Waste Retrieval and Disposal Mission.

Potter, R.D.

1998-01-08T23:59:59.000Z

34

Facility design philosophy: Tank Waste Remediation System Process support and infrastructure definition  

Science Conference Proceedings (OSTI)

This report documents the current facility design philosophy for the Tank Waste Remediation System (TWRS) process support and infrastructure definition. The Tank Waste Remediation System Facility Configuration Study (FCS) initially documented the identification and definition of support functions and infrastructure essential to the TWRS processing mission. Since the issuance of the FCS, the Westinghouse Hanford Company (WHC) has proceeded to develop information and requirements essential for the technical definition of the TWRS treatment processing programs.

Leach, C.E.; Galbraith, J.D. [Westinghouse Hanford Co., Richland, WA (United States); Grant, P.R.; Francuz, D.J.; Schroeder, P.J. [Fluor Daniel, Inc., Richland, WA (United States)

1995-11-01T23:59:59.000Z

35

Operable Unit 3-13, Group 7, SFE-20 Hot Waste Tank System Remedial Action Request  

SciTech Connect

This Remedial Action Report summarizes activities undertaken to remediate the Operable Unit 3-13, Group 7, SFE-20 Hot Waste Tank System at the Idaho Nuclear Technology and Engineering Center at the Idaho National Laboratory Site. The site addressed in this report was defined in the Operable Unit 3-13 Record of Decision and subsequent implementing documents. This report concludes that remediation requirements and cleanup goals established for the site have been accomplished and is hereafter considered a No Further Action site.

L. Davison

2009-06-30T23:59:59.000Z

36

Operable Unit 3-13, Group 7, SFE-20 Hot Waste Tank System Remedial Action Report  

SciTech Connect

This Remedial Action Report summarizes activities undertaken to remediate the Operable Unit 3-13, Group 7, SFE-20 Hot Waste Tank System at the Idaho Nuclear Technology and Engineering Center at the Idaho National Laboratory Site. The site addressed in this report was defined in the Operable Unit 3-13 Record of Decision and subsequent implementing documents. This report concludes that remediation requirements and cleanup goals established for the site have been accomplished and is hereafter considered a No Further Action site.

Lee Davison

2009-06-30T23:59:59.000Z

37

Photovoltaic System Performance  

Energy.gov (U.S. Department of Energy (DOE))

Photovoltaic (PV) systems are usually composed of numerous solar arrays, which in turn, are composed of numerous PV cells. The performance of the system is therefore dependent on the performance of...

38

2010 Performance Metrics for Intelligent Systems (PerMIS'10) ...  

Science Conference Proceedings (OSTI)

... Intelligent systems for Hazardous Environments (eg nuclear remediation); Smart Grid; Space Robotics; Medical & Healthcare. Past Workshops. ...

2013-05-19T23:59:59.000Z

39

2012 Performance Metrics for Intelligent Systems (PerMIS'12) ...  

Science Conference Proceedings (OSTI)

... Intelligent Transportation Systems; Defense and Security; Emergency Response ... and Robots for Hazardous Environments (eg nuclear remediation); ...

2012-11-21T23:59:59.000Z

40

The Gunite and Associated Tanks Remediation Project Tank Waste Retrieval Performance and Lessons Learned, vol. 2 [of 2  

SciTech Connect

The Gunite and Associated Tanks (GAAT) Remediation Project was the first of its kind performed in the United States. Robotics and remotely operated equipment were used to successfully transfer almost 94,000 gal of remote-handled transuranic sludge containing over 81,000 Ci of radioactive contamination from nine large underground storage tanks at the Oak Ridge National Laboratory (ORNL). The sludge was transferred with over 439,000 gal of radioactive waste supernatant and {approx}420,500 gal of fresh water that was used in sluicing operations. The GAATs are located in a high-traffic area of ORNL near a main thoroughfare. Volume 1 provides information on the various phases of the project and describes the types of equipment used. Volume 1 also discusses the tank waste retrieval performance and the lessons learned during the remediation effort. Volume 2 consists of the following appendixes, which are referenced in Vol. 1: A--Background Information for the Gunite and Associated Tanks Operable Unit; B--Annotated Bibliography; C--GAAT Equipment Matrix; D--Comprehensive Listing of the Sample Analysis Data from the GAAT Remediation Project; and E--Vendor List for the GAAT Remediation Project. The remediation of the GAATs was completed {approx}5.5 years ahead of schedule and {approx}$120,435K below the cost estimated in the Remedial Investigation/Feasibility Study for the project. These schedule and cost savings were a direct result of the selection and use of state-of-the-art technologies and the dedication and drive of the engineers, technicians, managers, craft workers, and support personnel that made up the GAAT Remediation Project Team.

Lewis, BE

2003-10-07T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Performance Characterization and Remedy of Experimental CuInGaSe2 Mini-Modules: Preprint  

DOE Green Energy (OSTI)

We employed current-voltage (I-V), quantum efficiency (QE), photoluminescence (PL), electroluminescence (EL), lock-in thermography (LIT), and (electrochemical) impedance spectroscopy (ECIS) to complementarily characterize the performance and remedy for two pairs of experimental CuInGaSe2 (CIGS) mini-modules. One pair had the three scribe-lines (P1/P2/P3) done by a single pulse-programmable laser, and the other had the P2/P3 lines by mechanical scribe. Localized QE measurements for each cell strip on all four mini-modules showed non-uniform distributions that correlated well with the presence of performance-degrading strips or spots revealed by PL, EL, and LIT imaging. Performance of the all-laser-scribed mini-modules improved significantly by adding a thicker Al-doped ZnO layer and reworking the P3 line. The efficiency on one of the all-laser-scribed mini-modules increased notably from 7.80% to 8.56% after the performance-degrading spots on the side regions along the cell array were isolated by manual scribes.

Pern, F. J.; Yan, F.; Mansfield, L.; Glynn, S.; Rekow, M.; Murion, R.

2011-07-01T23:59:59.000Z

42

The Gunite and Associated Tanks Remediation Project Tank Waste Retrieval Performance and Lessons Learned, vol. 1 [of 2  

SciTech Connect

The Gunite and Associated Tanks (GAAT) Remediation Project was the first of its kind performed in the United States. Robotics and remotely operated equipment were used to successfully transfer almost 94,000 gal of remote-handled transuranic sludge containing over 81,000 Ci of radioactive contamination from nine large underground storage tanks at the Oak Ridge National Laboratory (ORNL). The sludge was transferred with over 439,000 gal of radioactive waste supernatant and {approx}420,500 gal of fresh water that was used in sluicing operations. The GAATs are located in a high-traffic area of ORNL near a main thoroughfare. A phased and integrated approach to waste retrieval operations was used for the GAAT Remediation Project. The project promoted safety by obtaining experience from low-risk operations in the North Tank Farm before moving to higher-risk operations in the South Tank Farm. This approach allowed project personnel to become familiar with the tanks and waste, as well as the equipment, processes, procedures, and operations required to perform successful waste retrieval. By using an integrated approach to tank waste retrieval and tank waste management, the project was completed years ahead of the original baseline schedule, which resulted in avoiding millions of dollars in associated costs. This report is organized in two volumes. Volume 1 provides information on the various phases of the GAAT Remediation Project. It also describes the different types of equipment and how they were used. The emphasis of Volume 1 is on the description of the tank waste retrieval performance and the lessons learned during the GAAT Remediation Project. Volume 2 provides the appendixes for the report, which include the following information: (A) Background Information for the Gunite and Associated Tanks Operable Unit; (B) Annotated Bibliography; (C) Comprehensive Listing of the Sample Analysis Data from the GAAT Remediation Project; (D) GAAT Equipment Matrix; and (E) Vendor List for the GAAT Remediation Project. The remediation of the GAATs was completed {approx}5.5 years ahead of schedule and {approx}$120,435,000 below the cost estimated in the Remedial Investigation/Feasibility Study for the project. These schedule and cost savings were a direct result of the selection and use of state-of-the-art technologies and the dedication and drive of the engineers, technicians, managers, craft workers, and support personnel that made up the GAAT Remediation Project Team.

Lewis, BE

2003-10-07T23:59:59.000Z

43

Tank waste remediation system nuclear criticality safety inspection and assessment plan  

SciTech Connect

This plan provides a management approved procedure for inspections and assessments of sufficient depth to validate that the Tank Waste Remediation System (TWRS) facility complies with the requirements of the Project Hanford criticality safety program, NHF-PRO-334, ''Criticality Safety General, Requirements''.

VAIL, T.S.

1999-04-06T23:59:59.000Z

44

Bases for solid waste volume estimates for tank waste remediation system  

Science Conference Proceedings (OSTI)

This document presents the background and basis for the Tank Waste Remediation System forecast for solid waste submitted in June 1996. The forecast was generated for single-shell tank and double-shell tank activities including operations through retrieval and disposal of chemical tank waste.

Reddick, G.W., Westinghouse Hanford

1996-08-01T23:59:59.000Z

45

Hanford Site Tank Waste Remediation System. Waste management 1993 symposium papers and viewgraphs  

Science Conference Proceedings (OSTI)

The US Department of Energy`s (DOE) Hanford Site in southeastern Washington State has the most diverse and largest amount of highly radioactive waste of any site in the US. High-level radioactive waste has been stored in large underground tanks since 1944. A Tank Waste Remediation System Program has been established within the DOE to safely manage and immobilize these wastes in anticipation of permanent disposal in a geologic repository. The Hanford Site Tank Waste Remediation System Waste Management 1993 Symposium Papers and Viewgraphs covered the following topics: Hanford Site Tank Waste Remediation System Overview; Tank Waste Retrieval Issues and Options for their Resolution; Tank Waste Pretreatment - Issues, Alternatives and Strategies for Resolution; Low-Level Waste Disposal - Grout Issue and Alternative Waste Form Technology; A Strategy for Resolving High-Priority Hanford Site Radioactive Waste Storage Tank Safety Issues; Tank Waste Chemistry - A New Understanding of Waste Aging; Recent Results from Characterization of Ferrocyanide Wastes at the Hanford Site; Resolving the Safety Issue for Radioactive Waste Tanks with High Organic Content; Technology to Support Hanford Site Tank Waste Remediation System Objectives.

Not Available

1993-05-01T23:59:59.000Z

46

The web of system performance  

Science Conference Proceedings (OSTI)

Because information system performance is multidimensional, specialist theories of performance dimensions must be integrated into a model of system design.

Brian Whitworth; Jerry Fjermestad; Edward Mahinda

2006-05-01T23:59:59.000Z

47

Photovoltaic lighting system performance  

DOE Green Energy (OSTI)

The performance of 21 PV-powered low pressure sodium lighting systems on a multi-use has been documented in this paper. Specific areas for evaluation include the vandal resistant PV modules, constant voltage and on/off PV charge controllers, flooded deep-cycle lead-antimony and valve regulated lead-acid (VLRA) gel batteries, and low pressure sodium ballasts and lights. The PV lighting system maintenance intervals and lessons learned have been documented over the past 2.5 years. The above performance data has shown that with careful hardware selection, installation, and maintenance intervals the PV lighting systems will operate reliably.

Harrington, S.R.; Hund, T.D.

1996-06-01T23:59:59.000Z

48

Tank Waste Remediation Systems (TWRS) Configuration Management Implementation Plan  

SciTech Connect

The Tank Waste Configuration Management (TWRS) Configuration Management Implementation Plan descibes the execution of the configuration management (CM) that the contractor uses to manage and integrate its programmatic and functional operations to perform work.

WEIR, W.R.

2000-12-18T23:59:59.000Z

49

High performance systems  

SciTech Connect

This document provides a written compilation of the presentations and viewgraphs from the 1994 Conference on High Speed Computing given at the High Speed Computing Conference, {open_quotes}High Performance Systems,{close_quotes} held at Gleneden Beach, Oregon, on April 18 through 21, 1994.

Vigil, M.B. [comp.

1995-03-01T23:59:59.000Z

50

Eleventh annual Department of Energy low-level waste management conference. Volume 1: Regulatory updates, performance assessment, understanding remedial action efforts  

SciTech Connect

Eighteen papers are presented in this volume. The section on regulatory updates present papers on EPA, NRC, and DOE regulations. The performance assessment section presents studies on disposal facilities at ORNL, Hanford, and the Feed Materials Production Center. The remedial action section papers discuss programs and remedial action activities. Papers have been processed separately for inclusion on the data base.

1989-11-01T23:59:59.000Z

51

USE OF THE AERIAL MEASUREMENT SYSTEM HELICOPTER EMERGENCY RESPONSE ACQUISITION SYSTEMS WITH GEOGRAPHIC INFORMATION SYSTEM FOR RADIOACTIVE SOIL REMEDIATION - [11504  

SciTech Connect

The Aerial Measurement System (AMS) Helicopter Emergency Response Acquisition System provides a thorough and economical means to identify and characterize the contaminants for large area radiological surveys. The helicopter system can provide a 100-percent survey of an area that qualifies as a scoping survey under the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) methodology. If the sensitivity is adequate when compared to the clean up values, it may also be used for the characterization survey. The data from the helicopter survey can be displayed and manipulated to provide invaluable data during remediation activities.

BROCK CT

2011-02-15T23:59:59.000Z

52

Final Environmental Impact Statement for the Tank Waste Remediation System, Hanford Site, Richland, Washington  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

for the Tank Waste Remediation System, Hanford Site, Richland, Washington for the Tank Waste Remediation System, Hanford Site, Richland, Washington file:///I|/Data%20Migration%20Task/EIS-0189-FEIS-Summary-1996.HTM[6/27/2011 11:21:59 AM] The National Environmental Policy Act (NEPA) requires Federal agencies to analyze the potential environmental impacts of their proposed actions to assist them in making informed decisions. A similar Washington State law, the State Environmental Policy Act (SEPA), requires State agencies, including the Washington State Department of Ecology (Ecology), to analyze environmental impacts before making decisions that could impact the environment. A major emphasis of both laws is to promote public awareness of these actions and provide opportunities for public involvement. Because NEPA and SEPA requirements are similar, the U.S. Department of Energy (DOE) and Ecology

53

In-situ remediation system for contaminated groundwater  

DOE Patents (OSTI)

A system for removing volatile contaminants from a subsurface plume of contamination comprising two sets of wells, a well for injecting a fluid into a saturated zone on one side of the plume and an extracting well for collecting the fluid together with volatilized contaminants from the plume on the other side of the plume is described. The fluid enables the volatile contaminants to be volatilized and carried through the ground to the extracting well. Injecting and extracting wells are preferably horizontal wells positioned below the plume in the saturated zone and above the plume in the vadose zone. The fluid may be air or other gas or a gas and liquid mixture depending on the type of contaminant to be removed and may be preheated to facilitate volatilization. Treatment of the volatilized contamination may be by filtration, incineration, atmospheric dispersion or the like. 3 refs., 3 figs.

Corey, J.C.; Looney, B.B.; Kaback, D.S.

1988-08-25T23:59:59.000Z

54

In-situ remediation system and method for contaminated groundwater  

DOE Patents (OSTI)

A system for removing volatile contaminants from a subsurface plume of contamination comprising two sets of wells, a well for injecting a fluid into a saturated zone on one side of the plume and an extracting well for collecting the fluid together with volatilized contaminants from the plume on the other side of the plume. The fluid enables the volatile contaminants to be volatilized and carried therewith through the ground to the extracting well. Injecting and extracting wells are preferably horizontal wells positioned below the plume in the saturated zone and above the plume in the vadose zone, respectively. The fluid may be air or other gas or a gas and liquid mixture depending on the type of contaminant to be removed and may be preheated to facilitate volatilization. Treatment of the volatilized contamination may be by filtration, incineration, atmospheric dispersion or the like.

Corey, John C. (Aiken, SC); Looney, Brian B. (Aiken, SC); Kaback, Dawn S. (Aiken, SC)

1989-01-01T23:59:59.000Z

55

In-situ remediation system and method for contaminated groundwater  

DOE Patents (OSTI)

A system for removing volatile contaminants from a subsurface plume of contamination comprising two sets of wells, a well for injecting a fluid into a saturated zone on one side of the plume and an extracting well for collecting the fluid together with volatilized contaminants from the plume on the other side of the plume. The fluid enables the volatile contaminants to be volatilized and carried therewith through the ground to the extracting well. Injecting and extracting wells are preferably horizontal wells positioned below the plume in the saturated zone and above the plume in the vadose zone, respectively. The fluid may be air or other gas or a gas and liquid mixture depending on the type of contaminant to be removed and may be preheated to facilitate volatilization. Treatment of the volatilized contamination may be by filtration, incineration, atmospheric dispersion or the like. 3 figs.

Corey, J.C.; Looney, B.B.; Kaback, D.S.

1989-05-23T23:59:59.000Z

56

Effective System Performance (ESP) Benchmark  

NLE Websites -- All DOE Office Websites (Extended Search)

System Performance (ESP) Benchmark It is now generally recognized in the high performance computing community that peak performance does not adequately predict the usefulness...

57

Decommissioning of the remediation systems at Waverly, Nebraska, in 2011-2012.  

SciTech Connect

The Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) operated a grain storage facility in Waverly, Nebraska, from 1952 to 1974. During this time, the grain fumigant '80/20' (carbon tetrachloride/carbon disulfide) was used to preserve stored grain. In 1982, sampling by the U.S. Environmental Protection Agency (EPA) found carbon tetrachloride contamination in the town's groundwater. After an investigation of the contaminant distribution, the site was placed on the National Priority List (NPL) in 1986, and the CCC/USDA accepted responsibility for the contamination. An Interagency Compliance Agreement between the EPA and the CCC/USDA was finalized in May 1988 (EPA 1990). The EPA (Woodward-Clyde Consultants, contractor) started immediate cleanup efforts in 1987 with the installation of an air stripper, a soil vapor extraction system, a groundwater extraction well, and groundwater and soil gas monitoring wells (Woodward-Clyde 1986, 1988a,b). After the EPA issued its Record of Decision (ROD; EPA 1990), the CCC/USDA (Argonne National Laboratory, contractor) took over operation of the treatment systems. The CCC/USDA conducted a site investigation (Argonne 1991, 1992a,b), during which a carbon tetrachloride plume in groundwater was discovered northeast of the former facility. This plume was not being captured by the existing groundwater extraction system. The remediation system was modified in 1994 (Argonne 1993) with the installation of a second groundwater extraction well to contain the contamination further. Subsequently, a detailed evaluation of the system resulted in a recommendation to pump only the second well to conserve water in the aquifer (Argonne 1995). Sampling and analysis after implementation of this recommendation showed continued decreases in the extent and concentrations of the contamination with only one well pumping (Argonne 1999). The CCC/USDA issued quarterly monitoring reports from 1988 to 2009. Complete documentation of the CCC/USDA characterization and remediation efforts, including the quarterly monitoring reports, is on the compact disc inside the back cover of this report. The EPA reported on the progress of the remediation systems in a series of five-year reviews (EPA 1993, 1999, 2004, 2009). These reports and other EPA documentation are also on the compact disc inside the back cover of this report, along with the Woodward-Clyde (1986, 1988a,b) documentation cited. Starting in 2006, the analytical results for groundwater (the only medium still being monitored) showed no carbon tetrachloride concentrations above the maximum contaminant level (MCL) of 5.0 g/L. Because the cleanup goals specified in the ROD (EPA 1990) had been met, the EPA removed the site from the NPL in November 2006 (Appendix A). In 2008 the National Pollutant Discharge Elimination System (NPDES) permit for the remediation system was deactivated, and a year later the EPA released its fourth and final five-year report (EPA 2009), indicating that no further action was required for the site and that the site was ready for unlimited use. In 2011-2012, the CCC/USDA decommissioned the remediation systems at Waverly. This report documents the decommission process and closure of the site.

LaFreniere, L. M. (Environmental Science Division)

2012-06-29T23:59:59.000Z

58

Effective System Performance (ESP) Benchmark  

NLE Websites -- All DOE Office Websites (Extended Search)

Effective System Effective System Performance (ESP) Benchmark Effective System Performance (ESP) Benchmark It is now generally recognized in the high performance computing community that peak performance does not adequately predict the usefulness of a system for a given set of applications. One of the first benchmarks designed to measure system performance in a real-world operational environment was NERSC's Effective System Performance (ESP) test. NERSC introduced ESP in 1999 with the hope that this test would be of use to system managers and would help to spur the community (both researchers and vendors) to improve system efficiency. The discussion below uses examples from the Cray T3E system that NERSC was operating in 1999. Improved MPP System Efficiency Equals Million-Dollar Savings

59

Membrane System for Recovery of Volatile Organic Compounds from Remediation Off-Gases.: Phase 1.  

Science Conference Proceedings (OSTI)

In situ vacuum extraction, air or steam sparging, and vitrification are widely used methods of remediating soil contaminated with volatile organic compounds (VOCs). All of these processes produce a VOC-laden air stream from which the VOC must be removed before the air can be discharged or recycled to the generating process. Treatment of these off-gases is often a major portion of the cost of the remediation project. Carbon adsorption and catalytic incineration, the most common methods of treating these gas streams, suffer from significant drawbacks. This report covers the first phase of a two-phase project. The first phase involved the laboratory demonstration of the water separation section of the unit, the production and demonstration of new membrane modules to improve the separation, the design studies required for the demonstration system, and initial contacts with potential field sites. In the second phase, the demonstration system will be built and, after a short laboratory evaluation, will be tested at two field sites.

Wijmans, J.G.; Goakey, S.; Wang, X.; Baker, R.W.; Kaschemekat, J.H.

1997-04-01T23:59:59.000Z

60

Inspection system performance test procedure  

SciTech Connect

This procedure establishes requirements to administer a performance demonstration test. The test is to demonstrate that the double-shell tank inspection system (DSTIS) supplied by the contractor performs in accordance with the WHC-S-4108, Double-Shell Tank Ultrasonic Inspection Performance Specification, Rev. 2-A, January, 1995. The inspection system is intended to provide ultrasonic (UT) and visual data to determine integrity of the Westinghouse Hanford Company (WHC) site underground waste tanks. The robotic inspection system consists of the following major sub-systems (modules) and components: Mobile control center; Deployment module; Cable management assembly; Robot mechanism; Ultrasonic testing system; Visual testing system; Pneumatic system; Electrical system; and Control system.

Jensen, C.E.

1995-01-17T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Monitoring System Performance (Presentation)  

DOE Green Energy (OSTI)

Requirements for a standard test to rate the durability of photovoltaic (PV) modules at system voltage are discussed.

Emery, K.; Smith, R.

2011-02-01T23:59:59.000Z

62

Tank Waste Remediation System retrieval and disposal mission technical baseline summary description  

SciTech Connect

This document is prepared in order to support the US Department of Energy`s evaluation of readiness-to-proceed for the Waste Retrieval and Disposal Mission at the Hanford Site. The Waste Retrieval and Disposal Mission is one of three primary missions under the Tank Waste Remediation System (TWRS) Project. The other two include programs to characterize tank waste and to provide for safe storage of the waste while it awaits treatment and disposal. The Waste Retrieval and Disposal Mission includes the programs necessary to support tank waste retrieval, wastefeed, delivery, storage and disposal of immobilized waste, and closure of tank farms. This mission will enable the tank farms to be closed and turned over for final remediation. The Technical Baseline is defined as the set of science and engineering, equipment, facilities, materials, qualified staff, and enabling documentation needed to start up and complete the mission objectives. The primary purposes of this document are (1) to identify the important technical information and factors that should be used by contributors to the mission and (2) to serve as a basis for configuration management of the technical information and factors.

McLaughlin, T.J.

1998-01-06T23:59:59.000Z

63

Sustained System Performance (SSP) Benchmark  

NLE Websites -- All DOE Office Websites (Extended Search)

John M. Shalf, and Erich Strohmaier Background The NERSC Approach to Procurement Benchmarks The NERSC-5 SSP The NERSC-6 SSP The Effective System Performance (ESP) Metric...

64

PV System Performance and Standards  

DOE Green Energy (OSTI)

This paper presents a brief overview of the status and accomplishments during fiscal year (FY) 2005 of the Photovoltaic (PV) System Performance and Standards Subtask, which is part of the PV Systems Engineering Project (a joint NREL-Sandia project).

Osterwald, C. R.

2005-11-01T23:59:59.000Z

65

Performance-Based Technology Selection Filter description report. INEL Buried Waste Integrated Demonstration System Analysis project  

SciTech Connect

A formal methodology has been developed for identifying technology gaps and assessing innovative or postulated technologies for inclusion in proposed Buried Waste Integrated Demonstration (BWID) remediation systems. Called the Performance-Based Technology Selection Filter, the methodology provides a formalized selection process where technologies and systems are rated and assessments made based on performance measures, and regulatory and technical requirements. The results are auditable, and can be validated with field data. This analysis methodology will be applied to the remedial action of transuranic contaminated waste pits and trenches buried at the Idaho National Engineering Laboratory (INEL).

O`Brien, M.C.; Morrison, J.L.; Morneau, R.A.; Rudin, M.J.; Richardson, J.G.

1992-05-01T23:59:59.000Z

66

Sustained System Performance (SSP) Benchmark  

NLE Websites -- All DOE Office Websites (Extended Search)

Sustained System Sustained System Performance (SSP) Benchmark Sustained System Performance (SSP) Benchmark William T.C. Kramer, John M. Shalf, and Erich Strohmaier Background The NERSC Approach to Procurement Benchmarks The NERSC-5 SSP The NERSC-6 SSP The Effective System Performance (ESP) Metric Conclusion Notes Formal description of SSP A formal description of the SSP, including detailed formulae, is now available. This is a portion of the soon-to-be-published Ph.D. dissertation, Kramer, W.T.C., 2008, "PERCU: A Holistic Method for Evaluating High End Computing Systems," Department of Electrical Engineering and Computer Science, University of California, Berkeley. Background Most plans and reports recently discuss only one of four distinct purposes benchmarks are used. The obvious purpose is selection of a system from

67

Tank waste remediation system fiscal year 1997 multi-year workplan WBS 1.1  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy (DOE) established the Tank Waste Remediation System (TWRS) Program to manage and immobilize for disposal the waste contained in underground storage tanks at the Hanford Site. The TWRS program was established as a DOE major system acquisition under an approved Justification of Mission Need (JMN) dated January 19, 1993. The JMN states that the purpose of the TWRS Program is to: Resolve the tank waste safety issues; Integrate the waste disposal mission with the ongoing waste management mission; Assess the technical bases for tank waste management and disposal; Determine the technology available and develop any needed technologies; and Establish a dedicated organization and provide the resources to meet the technical challenge. The principal objectives of management of existing and future tank wastes is to cost-effectively minimize the environmental, safety, and health risks associated with stored wastes, with reduction of safety risks given the highest priority. The potentials must be minimized for release of tank wastes to the air and to the ground (and subsequently to the groundwater) and for exposure of the operating personnel to tank wastes.

Wilson, C.E.

1996-09-23T23:59:59.000Z

68

Tank Waste Remediation System fiscal year 1996 multi-year program plan WBS 1.1. Revision 1, Appendix A  

Science Conference Proceedings (OSTI)

This document is a compilation of data relating to the Tank Waste Remediation System Multi-Year Program. Topics discussed include: management systems; waste volume, transfer and evaporation management; transition of 200 East and West areas; ferricyanide, volatile organic vapor, and flammable gas management; waste characterization; retrieval from SSTs and DSTs; heat management; interim storage; low-level and high-level radioactive waste management; and tank farm closure.

NONE

1995-09-01T23:59:59.000Z

69

Transportation, Aging and Disposal Canister System Performance...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transportation, Aging and Disposal Canister System Performance Specification: Revision 1 Transportation, Aging and Disposal Canister System Performance Specification: Revision 1...

70

Tank waste remediation system retrieval and disposal mission initial updated baseline summary  

SciTech Connect

This document provides a summary of the Tank Waste Remediation System (TWRS) Retrieval and Disposal Mission Initial Updated Baseline (scope, schedule, and cost), developed to demonstrate Readiness-to-Proceed (RTP) in support of the TWRS Phase 1B mission. This Updated Baseline is the proposed TWRS plan to execute and measure the mission work scope. This document and other supporting data demonstrate that the TWRS Project Hanford Management Contract (PHMC) team is prepared to fully support Phase 1B by executing the following scope, schedule, and cost baseline activities: Deliver the specified initial low-activity waste (LAW) and high-level waste (HLW) feed batches in a consistent, safe, and reliable manner to support private contractors` operations starting in June 2002; Deliver specified subsequent LAW and HLW feed batches during Phase 1B in a consistent, safe, and reliable manner; Provide for the interim storage of immobilized HLW (IHLW) products and the disposal of immobilized LAW (ILAW) products generated by the private contractors; Provide for disposal of byproduct wastes generated by the private contractors; and Provide the infrastructure to support construction and operations of the private contractors` facilities.

Swita, W.R.

1998-01-09T23:59:59.000Z

71

Tank waste remediation system (TWRS) privatization contractor samples waste envelope D material 241-C-106  

Science Conference Proceedings (OSTI)

This report represents the Final Analytical Report on Tank Waste Remediation System (TWRS) Privatization Contractor Samples for Waste Envelope D. All work was conducted in accordance with ''Addendum 1 of the Letter of Instruction (LOI) for TWRS Privatization Contractor Samples Addressing Waste Envelope D Materials - Revision 0, Revision 1, and Revision 2.'' (Jones 1996, Wiemers 1996a, Wiemers 1996b) Tank 241-C-1 06 (C-106) was selected by TWRS Privatization for the Part 1A Envelope D high-level waste demonstration. Twenty bottles of Tank C-106 material were collected by Westinghouse Hanford Company using a grab sampling technique and transferred to the 325 building for processing by the Pacific Northwest National Laboratory (PNNL). At the 325 building, the contents of the twenty bottles were combined into a single Initial Composite Material. This composite was subsampled for the laboratory-scale screening test and characterization testing, and the remainder was transferred to the 324 building for bench-scale preparation of the Privatization Contractor samples.

Esch, R.A.

1997-04-14T23:59:59.000Z

72

Performance tuning for high performance computing systems.  

E-Print Network (OSTI)

??A Distributed System is composed by integration between loosely coupled software components and the underlying hardware resources that can be distributed over the standard internet (more)

Pahuja, Himanshu

2011-01-01T23:59:59.000Z

73

The NERSC Sustained System Performance (SSP) Metric  

E-Print Network (OSTI)

Effective System Performance (ESP) Metric High performancerefers to this metric as the ESP (Effective Peak TFlop/sSystem Performance) 4 . ESP 5 has several characteristics

Kramer, William; Shalf, John; Strohmaier, Erich

2005-01-01T23:59:59.000Z

74

SGDP Storage System Performance Supplement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Analysis for the ARRA SGDP Analysis for the ARRA SGDP Energy Storage Projects Update Conference - DOE 2010 Energy Storage Systems Program (ESS) November 3, 2010 Presenter: Jacquelyn Bean Organization: DOE-National Energy Technology Laboratory (NETL) Funded in part by the Energy Storage Systems Program of the U.S. Department Of Energy through National Energy Technology Laboratory 1 Background 2 Metrics and Benefits Data Flow 3 Contact Information Table of Contents 1 4 Appendix NETL's role in SGDP metrics and benefits reporting 2 NETL Energy Delivery Technologies Division SGDP Technical Project Officers (TPOs) SGDP Principal Investigators (PIs) Project Management and Performance Data Analysis NETL Project Management Center's Analysis & Support Team Data Analysis Team (DAT) Lead Contractors: Booz Allen

75

Tank waste remediation system retrieval and disposal mission readiness-to-proceed guidance and requirements to deliverables crosswalk  

Science Conference Proceedings (OSTI)

In September 1996, the US Department of Energy, Richland Operations Office (RL) initiated the first of a two-phase program to remediate waste storage in tanks at the Hanford Site in Washington State. Initiating the first phase, RL signed contracts with two private companies who agreed to receive and vitrify a portion of the tank waste in a demonstration and to return the vitrified product and by-products to the Project Management Hanford Contract (PHMC) team for disposition. The first phase of the overall remediation effort is a demonstration of treatment concepts, and the second phase includes treatment of the remaining tank wastes. The demonstration phase, Phase 1 of the project, is further subdivided into two parts, A and B. During Phase 1A, the vitrification contractors are to establish the technical, operational, regulatory, business, and financial elements required to provide treatment services on a fixed unit price basis. Phase 1A deliverables will be evaluated by RL to determine whether it is in the best interest of the government to have one or more vitrification contractors proceed with Phase 1B, in which 6% to 13% of the tank waste would be treated in the demonstration. In addition, before RL can authorize proceeding with Phase 1B, the PHMC team must demonstrate its readiness to retrieve and deliver the waste to the private contractor(s) and to receive and dispose of the products and by-products returned from the treatment. The PHMC team has organized their plans for providing these vitrification-support services into the Retrieval and Disposal Mission within the Tank Waste Remediation System (TWRS) Project. Three RL core teams were established to assist in evaluating the PHMC team`s readiness specifically in regard to three task areas: Waste feed delivery; Infrastructure and by-products delivery; and Immobilized products. The core teams each developed a set of criteria and plans to be used in evaluating the PHMC team`s readiness to proceed (RTP).

Hall, C.E.

1998-01-06T23:59:59.000Z

76

In-situ remediation system for volatile organic compounds with deep recharge mechanism  

DOE Patents (OSTI)

A method and apparatus for the treatment and remediation of a contaminated aquifer in the presence of an uncontaminated aquifer at a different hydraulic potential. The apparatus consists of a wellbore inserted through a first aquifer and into a second aquifer, an inner cylinder within the wellbore is supported and sealed to the wellbore to prevent communication between the two aquifers. Air injection is used to sparge the liquid having the higher static water level and, to airlift it to a height whereby it spills into the inner cylinder. The second treatment area provides treatment in the form of aeration or treatment with a material. Vapor stripped in sparging is vented to the atmosphere. Treated water is returned to the aquifer having the lower hydraulic potential.

Jackson, Jr., Dennis G. (Augusta, GA); Looney, Brian B. (Aiken, SC); Nichols, Ralph L. (Augusta, SC); Phifer, Mark A. (Augusta, SC)

2001-01-01T23:59:59.000Z

77

The NERSC Sustained System Performance (SSP) Metric  

E-Print Network (OSTI)

The NERSC Sustained System Performance (SSP) Metric WilliamSSP) metric developed by NERSC for its procurements. Theis important. One system at NERSC consistently slowed down

Kramer, William; Shalf, John; Strohmaier, Erich

2005-01-01T23:59:59.000Z

78

Enhanced Remedial Amendment Delivery through Fluid Viscosity Modifications: Experiments and numerical simulations  

SciTech Connect

Abstract Heterogeneity is often encountered in subsurface contamination characterization and remediation. Low-permeability zones are typically bypassed when remedial fluids are injected into subsurface heterogeneous aquifer systems. Therefore, contaminants in the bypassed areas may not be contacted by the amendments in the remedial fluid, which may significantly prolong the remediation operations. Laboratory experiments and numerical studies have been conducted to develop the Mobility-Controlled Flood (MCF) technology for subsurface remediation and to demonstrate the capability of this technology in enhancing the remedial amendments delivery to the lower permeability zones in heterogeneous systems. Xanthan gum, a bio-polymer, was used to modify the viscosity of the amendment-containing remedial solutions. Sodium mono-phosphate and surfactant were the remedial amendment used in this work. The enhanced delivery of the amendments was demonstrated in two-dimensional (2-D) flow cell experiments, packed with heterogeneous systems. The impact of polymer concentration, fluid injection rate, and permeability contract in the heterogeneous systems has been studied. The Subsurface Transport over Multiple Phases (STOMP) simulator was modified to include polymer-induced shear thinning effects. Shear rates of polymer solutions were computed from pore-water velocities using a relationship proposed in the literature. Viscosity data were subsequently obtained from empirical viscosity-shear rate relationships derived from laboratory data. The experimental and simulation results clearly show that the MCF technology is capable of enhancing the delivery of remedial amendments to subsurface lower permeability zones. The enhanced delivery significantly improved the NAPL removal from these zones and the sweeping efficiency on a heterogeneous system was remarkably increased when a polymer fluid was applied. MCF technology is also able to stabilize the fluid displacing front when there is a density difference between the fluids. The modified STOMP simulator was able to predict the experimental observed fluid displacing behavior. The simulator may be used to predict the subsurface remediation performance when a shear thinning fluid is used to remediate a heterogeneous system.

Zhong, Lirong; Oostrom, Martinus; Wietsma, Thomas W.; Covert, Matthew A.

2008-07-29T23:59:59.000Z

79

THERMAL PERFORMANCE OF MANAGED WINDOW SYSTEMS  

E-Print Network (OSTI)

PERFORMANCE OF MANAGED WINDOW SYSTEMS S. E. Selkowitz and V.York, N.Y. , (1971). Windows for Energy Efficient Buildings,thermal performance of a window system are its overall heat

Selkowitz, S. E.

2011-01-01T23:59:59.000Z

80

Energy Basics: Photovoltaic System Performance  

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

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Solar Photovoltaics Cells Systems Concentrating Solar...

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Data Management Plan and Functional System Design for the Information Management System of the Clinch River Remedial Investigation and Waste Area Grouping 6  

Science Conference Proceedings (OSTI)

The Data Management Plan and Functional System Design supports the Clinch River Remedial Investigation (CRRI) and Waste Area Grouping (WAG) 6 Environmental Monitoring Program. The objective of the Data Management Plan and Functional System Design is to provide organization, integrity, security, traceability, and consistency of the data generated during the CRRI and WAG 6 projects. Proper organization will ensure that the data are consistent with the procedures and requirements of the projects. The Information Management Groups (IMGs) for these two programs face similar challenges and share many common objectives. By teaming together, the IMGs have expedited the development and implementation of a common information management strategy that benefits each program.

Ball, T.; Brandt, C.; Calfee, J.; Garland, M.; Holladay, S.; Nickle, B.; Schmoyer, D.; Serbin, C.; Ward, M. [Oak Ridge National Lab., TN (United States)

1994-03-01T23:59:59.000Z

82

DOE SES PERFORMANCE MANAGEMENT SYSTEM  

Energy.gov (U.S. Department of Energy (DOE))

This plan covers Department of Energy SES executives, as well as those Presidential appointees who have retained eligibility for SES performance appraisals and awards under 5 U.S.C. 3392(c).

83

SGDP Storage System Performance Supplement  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Program (ESS) November 3, 2010 Presenter: Jacquelyn Bean Organization: DOE-National Energy Technology Laboratory (NETL) Funded in part by the Energy Storage Systems Program...

84

A probabilistic reasoning-based decision support system for selection of remediation technologies for petroleum-contaminated sites  

Science Conference Proceedings (OSTI)

Selection of remediation technologies for petroleum-contaminated sites is difficult given the large number of technologies available and inherent uncertainties involved in the selection process. In this paper, we explore the use of an inexact algorithm ... Keywords: Petroleum contamination, Probabilistic reasoning, Remediation technologies

L. He; C. W. Chan; G. H. Huang; G. M. Zeng

2006-05-01T23:59:59.000Z

85

Photovoltaic System Performance Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

System Performance Basics System Performance Basics Photovoltaic System Performance Basics August 20, 2013 - 4:17pm Addthis Photovoltaic (PV) systems are usually composed of numerous solar arrays, which in turn, are composed of numerous PV cells. The performance of the system is therefore dependent on the performance of its components. Reliability The reliability of PV arrays is an important factor in the cost of PV systems and in consumer acceptance. However, the building blocks of arrays, PV cells, are considered "solid-state" devices with no moving parts and, therefore, are highly reliable and long-lived. Therefore, reliability measurements of PV systems are usually focused not on cells but on modules and whole systems. Reliability can be improved through fault-tolerant circuit design, which

86

Workload characterization using the TAU performance system  

Science Conference Proceedings (OSTI)

Workload characterization is an important technique that helps us understand the performance of parallel applications and the demands they place on the system. It can be used to describe performance effects due to application parameters, compiler options, ... Keywords: instrumentation, measurement, performance evaluation, performance mapping, workload characterization

Sameer Shende; Allen D. Malony; Alan Morris

2006-06-01T23:59:59.000Z

87

Remediation strategies of shaft and common mode voltages in adjustable speed drive systems.  

E-Print Network (OSTI)

??AC motors are largely used in a wide range of modern systems, from household appliances to automated industry applications such as: ventilations systems, fans, pumps, (more)

Adabi Firouzjaee, Jafar

2010-01-01T23:59:59.000Z

88

THERMAL PERFORMANCE OF INSULATING WINDOW SYSTEMS  

E-Print Network (OSTI)

PERFORMANCE VALUES FOR SEVERAL WINDOW DESIGNS XBL 796-10098IN MINNEAPOLIS AS A FUNCTION OF WINDOW AREA AND GLAZING/Thermal Performance of Insulating Window Systems Stephen E.

Selkowitz, Stephen E.

2011-01-01T23:59:59.000Z

89

System to measure heart performance  

Science Conference Proceedings (OSTI)

Systems to measureheart condition are applied to patients with early or chronic cardiac problems with the aim of diagnosing and exactly locat? ing the problem. Two very important factors exist that are taken into account in order to obtain a reliable diagnosis and to be able to give suitable medical treatment. One of them is the volume of blood that the heart pumps

2002-01-01T23:59:59.000Z

90

System Performance Measurement Supports Design Recommendations...  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System The U.S. Department of Energy's (DOE) Federal Energy Management Program (FEMP)...

91

Hyperaudience : designing performance systems for audience inclusion  

E-Print Network (OSTI)

We define the concept of the Hyperaudience and a unique approach towards designing real-time interactive performance systems: the design of these systems encourages audience participation and augments the experience of ...

Van Troyer, Akito

2012-01-01T23:59:59.000Z

92

Photovoltaic System Performance Basics | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

the system is therefore dependent on the performance of its components. Reliability The reliability of PV arrays is an important factor in the cost of PV systems and in consumer...

93

Tank waste remediation system year 2000 dedicated file server project HNF-3418 project plan  

Science Conference Proceedings (OSTI)

The Server Project is to ensure that all TWRS supporting hardware (fileservers and workstations) will not cause a system failure because of the BIOS or Operating Systems cannot process Year 2000 dates.

SPENCER, S.G.

1999-04-26T23:59:59.000Z

94

Constructed Wetland Treatment Systems for the Remediation of Metal-Bearing Aqueous Discharges  

Science Conference Proceedings (OSTI)

Constructed wetland treatment systems potentially offer utilities an effective, relatively low-cost option for treating aqueous discharges that contain metals. This report provides a ready source of information on these systems and their use within the electric utility industry.

1995-10-05T23:59:59.000Z

95

RHIC sextant test: Accelerator systems and performance  

SciTech Connect

One sextant of the RHIC Collider was commissioned in early 1997 with beam. We describe here the performance of the accelerator systems, instrumentation subsystems and application software. We also describe a ramping test without beam that took place after the commissioning with beam. Finally, we analyze the implications of accelerator systems performance and their impact on the planning for RHIC installation and commissioning.

Pilat, F.; Trbojevic, D.; Ahrens, L. [and others

1997-08-01T23:59:59.000Z

96

Solar Resource and PV Systems Performance  

E-Print Network (OSTI)

Solar Resource and PV Systems Performance at Selected Test Sites Prepared for the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Under Cooperative Agreement No. DE-FC26-06NT Subtask 11.1 Deliverables 2 and 4: Report on Solar Resource and PV Systems Performance at Selected Test

97

AGILA: The Ateneo High Performance Computing System  

E-Print Network (OSTI)

A Beowulf cluster is a low-cost parallel high performance computing system that uses commodity hardware components such as personal computers and standard Ethernet adapters and switches and runs on freely available software such as Linux and LAM-MPI. In this paper the development of the AGILA HPCS, which stands for the Ateneo GigaflopsRange Performance, Linux OS, and Athlon Processors High Performance Computing System, is discussed including its hardware and software configurations and performance evaluation. Keywords High-performance computing, commodity cluster computing, parallel computing, Beowulf-class cluster 1.

Rafael Salda Na; Felix P. Muga Ii; Jerrold J. Garcia; William Emmanuel; S. Yu

2000-01-01T23:59:59.000Z

98

Improving sensornet performance by separating system configuration from system logic  

Science Conference Proceedings (OSTI)

Many sensor network protocols are self-configuring, but independent self-configuration at different layers often results in suboptimal performance. We present Chi, a full-system configuration architecture that separates system logic from system configuration. ...

Niclas Finne; Joakim Eriksson; Nicolas Tsiftes; Adam Dunkels; Thiemo Voigt

2010-02-01T23:59:59.000Z

99

Photovoltaic system performance assessment for 1988  

SciTech Connect

The Southwest Region Experiment Station staff analyzed the performance, operation, and maintenance of five flat-plate photovoltaic plants for the calendar year 1988. These plants are: city of Austin's single-axis tracking system in Austin, Texas; the ARCO Solar, Inc., two-axis tracking system near Hesperia, California; Sacramento Municipal Utility District's (SMUD) PV1 and PV2 single-axis tracking systems in Sacramento County, California; Florida Power Corporation's Solar Progress fixed-tilt amorphous silicon PV array in Orlando, Florida; and Detroit Edison's fixed-tilt amorphous silicon system in Rochester, Michigan. The performance of each system was determined from hourly data recorded by the data acquisition system at each site. This means that the system performance presented in this report is dependent on the availability and accuracy of the data acquisition system. System operators provided operation, maintenance, and repair data. These activities were categorized and unscheduled operation and maintenance costs were determined. When possible, the performance and reliability of these systems are compared with prior years' performance to provide a long-term perspective on the operation of PV systems. 17 refs., 100 figs., 117 tabs.

Rosenthal, A.L. (Southwest Technology Development Inst., Las Cruces, NM (USA))

1990-01-01T23:59:59.000Z

100

Configuration management plan for waste tank farms and the 242-A evaporator of tank waste remediation system  

SciTech Connect

The configuration management architecture presented in this Configuration Management Plan is based on the functional model established by DOE-STD-1073-93, ``Guide for Operational Configuration Management Program.`` The DOE Standard defines the configuration management program by the five basic program elements of ``program management,`` ``design requirements,`` ``document control,`` ``change control,`` and ``assessments,`` and the two adjunct recovery programs of ``design reconstitution,`` and ``material condition and aging management.`` The CM model of five elements and two adjunct programs strengthen the necessary technical and administrative control to establish and maintain a consistent technical relationship among the requirements, physical configuration, and documentation. Although the DOE Standard was originally developed for the operational phase of nuclear facilities, this plan has the flexibility to be adapted and applied to all life-cycle phases of both nuclear and non-nuclear facilities. The configuration management criteria presented in this plan endorses the DOE Standard and has been tailored specifically to address the technical relationship of requirements, physical configuration, and documentation during the full life cycle of the Waste Tank Farms and 242-A Evaporator of Tank Waste Remediation System.

Laney, T.

1994-08-30T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

AGILA: The Ateneo High Performance Computing System  

E-Print Network (OSTI)

A Beowulf cluster is a low-cost parallel high performance computing system that uses commodity hardware components such as personal computers and standard Ethernet adapters and switches and runs on freely available software such as Linux and LAM-MPI. In this paper the development of the AGILA HPCS, which stands for the Ateneo GigaflopsRange Performance, Linux OS, and Athlon Processors High Performance Computing System, is discussed including its hardware and software configurations and performance evaluation. Keywords High-performance computing, commodity cluster computing, parallel computing, Beowulf-class cluster 1. INTRODUCTION In the Philippines today, computing power in the range of gigaflops is not generally available for use in research and development. Conventional supercomputers or high performance computing systems are very expensive and are beyond the budgets of most university research groups especially in developing countries such as the Philippines. A lower cost option...

Rafael P. Saldaa; Felix P. Muga; II; Jerrold J. Garcia; William Emmanuel S. Yu; S. Yu

2000-01-01T23:59:59.000Z

102

SIMS Prototype System 4: performance test report  

DOE Green Energy (OSTI)

The results obtained during testing of a self-contained, preassembled air type solar system, designed for installation remote from the dwelling, to provide space heating and hot water are presented. Data analysis is included which documents the system performance and verifies the suitability of SIMS Prototype System 4 for field installation.

Not Available

1978-10-09T23:59:59.000Z

103

SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE  

E-Print Network (OSTI)

1 LBNL-47622 SIMULATION OF RESIDENTIAL HVAC SYSTEM PERFORMANCE Walker, I., Siegel, J ..................................................... 9 #12;3 ABSTRACT In many parts of North America residential HVAC systems are installed outside of the simulations is that they are dynamic - which accounts for cyclic losses from the HVAC system and the effect

104

Advanced fenestration systems for improved daylight performance  

Science Conference Proceedings (OSTI)

The use of daylight to replace or supplement electric lighting in commercial buildings can result in significant energy and demand savings. High performance fenestration systems area necessary, but not sufficient, element of any successful daylighting design that reduces lighting energy use. However, these savings may be reduced if the fenestration systems impose adverse thermal loads. In this paper, we review the state of the art of several advanced fenestration systems which are designed to maximize the energy-saving potential of daylighting, while improving comfort and visual performance at an "affordable" cost. We first review the key performance issues that successful fenestration systems must address, and then review several classes of fenestration systems intended to meet those performance needs. The systems are reviewed in two categories: static and dynamic. Static systems include not only glazings, such as spectrally-selective and holographic glazings, but specialized designs of light-shelves and light-pipes, while dynamic systems cover automatically-operated Venetian blinds and electrochromic glazings. We include a discussion of the research directions in this area, and how these efforts might lead to static and dynamic hardware and system solutions that fulfill the multiple roles that these systems must play in terms of energy efficiency, comfort, visual performance, health, and amenity in future buildings.

Lee, E.S.; Selkowitz, S.

1998-03-01T23:59:59.000Z

105

Environmental Restoration Program pollution prevention performance measures for FY 1993 and 1994 remedial investigations: Generator training manual  

SciTech Connect

This computer-based program is designed to help waste generators in the Environmental Restoration (ER) Program prevent pollution at the DOE Oak Ridge Field Office (DOE-OR) facilities in Oak Ridge, Paducah, and Portsmouth. The Numerical Scoring System (NSS) is an interactive system designed to maintain data on ER Program pollution prevention efforts and to measure the success of these efforts through the ER Program life cycle.

1993-03-01T23:59:59.000Z

106

Phyto remediation groundwater trends at the DOE portsmouth gaseous  

Science Conference Proceedings (OSTI)

This paper describes the progress of a phyto-remediation action being performed at the Department of Energy (DOE) Portsmouth Gaseous Diffusion Plant (PORTS) X-740 Waste Oil Handling Facility to remediate contaminated groundwater under a Resource Conservation and Recovery Act (RCRA) closure action. This action was effected by an Ohio Environmental Protection Agency (OEPA) decision to use phyto-remediation as the preferred remedy for the X-740 groundwater contamination. This remedy was recognized as a cost-effective, low-maintenance, and promising method to remediate groundwater contaminated with volatile organic compounds (VOCs), primarily trichloroethylene (TCE). During 1999, prior to the tree installation at the X-740 Phyto-remediation Area, water level measurements in the area were collected from 10 monitoring wells completed in the Gallia Formation. The Gallia is the uppermost water-bearing zone and contains most of the groundwater contamination at PORTS. During the tree installation which took place during the summer of 1999, four new Gallia monitoring wells were installed at the X-740 Area in addition to the 10 Gallia wells which had been installed in the same area during the early 1990's. Manual water level measurements were collected quarterly from these 14 Gallia monitoring wells between 1998 and 2001. These manual water level measurements were collected to monitor the combined impact of the trees on the groundwater prior to root development. Beginning in 2001, water level measurements were collected monthly during the growing season (April-September) and quarterly during the dormant season (October-March). A total of eight water level measurements were collected annually to monitor the phyto-remediation system's effect on the groundwater in the X- 740 Area. The primary function of the X-740 Phyto-remediation Area is to hydraulically prevent further spreading of the TCE plume. This process utilizes deep-rooted plants, such as poplar trees, to extract large quantities of water from the saturated zone. The focus of any phyto-remediation system is to develop a cone of depression under the entire plantation area. This cone of depression can halt migration of the contaminant plume and can create a hydraulic barrier, thereby maintaining plume capture. While a cone of depression is not yet evident at the X-740 Phyto-remediation Area, water level measurements in 2004 and 2005 differed from measurements taken in previous years, indicating that the now mature trees are influencing groundwater flow direction and gradient at the site. Water level measurements taken from 2003 through 2005 indicate a trend whereby groundwater elevations steadily decreased in the X-740 Phyto-remediation System. During this time, an average groundwater table drop of 0.30 feet was observed. Although the time for the phyto-remediation system to mature had been estimated at two to three years, these monitoring data indicate a period of four to five years for the trees to reach maturity. Although, these trends are not apparent from analysis of the potentiometric surface contours, it does appear that the head gradient across the site is higher during the spring and lower during the fall. It is not clear, however, whether this trend was initiated by the installation of the phyto-remediation system. This paper will present the groundwater data collected to date to illustrate the effects of the trees on the groundwater table. (authors)

Lewis, A.C.; Baird, D.R. [CDM, Piketon, OH (United States)

2007-07-01T23:59:59.000Z

107

Performance Evaluation and Benchmarking of Intelligent Systems  

Science Conference Proceedings (OSTI)

To design and develop capable, dependable, and affordable intelligent systems, their performance must be measurable. Scientific methodologies for standardization and benchmarking are crucial for quantitatively evaluating the performance of emerging robotic and intelligent systems technologies. There is currently no accepted standard for quantitatively measuring the performance of these systems against user-defined requirements; and furthermore, there is no consensus on what objective evaluation procedures need to be followed to understand the performance of these systems. The lack of reproducible and repeatable test methods has precluded researchers working towards a common goal from exchanging and communicating results, inter-comparing system performance, and leveraging previous work that could otherwise avoid duplication and expedite technology transfer. Currently, this lack of cohesion in the community hinders progress in many domains, such as manufacturing, service, healthcare, and security. By providing the research community with access to standardized tools, reference data sets, and open source libraries of solutions, researchers and consumers will be able to evaluate the cost and benefits associated with intelligent systems and associated technologies. In this vein, the edited book volume addresses performance evaluation and metrics for intelligent systems, in general, while emphasizing the need and solutions for standardized methods. To the knowledge of the editors, there is not a single book on the market that is solely dedicated to the subject of performance evaluation and benchmarking of intelligent systems. Even books that address this topic do so only marginally or are out of date. The research work presented in this volume fills this void by drawing from the experiences and insights of experts gained both through theoretical development and practical implementation of intelligent systems in a variety of diverse application domains. The book presents a detailed and coherent picture of state-of-the-art, recent developments, and further research areas in intelligent systems.

Madhavan, Raj [ORNL; Messina, Elena [National Institute of Standards and Technology (NIST); Tunstel, Edward [JHU Applied Physics Laboratory

2009-09-01T23:59:59.000Z

108

Remedial System Performance Improvement for the 200-ZP-1_PW-1...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

as well as conceptual and mathematical model development in support of the 200-ZP-1 FS. * Dennis Faulk, EPA Region 10 * Arlene Tortoso, DOE RL * Mike Thompson, DOE RL * Briant...

109

Scientific Opportunities for Monitoring at Environmental Remediation Sites (SOMERS): Integrated Systems-Based Approaches to Monitoring  

Science Conference Proceedings (OSTI)

Through an inter-disciplinary effort, DOE is addressing a need to advance monitoring approaches from sole reliance on cost- and labor-intensive point-source monitoring to integrated systems-based approaches such as flux-based approaches and the use of early indicator parameters. Key objectives include identifying current scientific, technical and implementation opportunities and challenges, prioritizing science and technology strategies to meet current needs within the DOE complex for the most challenging environments, and developing an integrated and risk-informed monitoring framework.

Bunn, Amoret L.; Wellman, Dawn M.; Deeb, Rula A.; Hawley, Elizabeth L.; Truex, Michael J.; Peterson, Mark; Freshley, Mark D.; Pierce, Eric M.; McCord, John; Young, Michael H.; Gilmore, Tyler J.; Miller, Rick; Miracle, Ann L.; Kaback, Dawn; Eddy-Dilek, Carol; Rossabi, Joe; Lee, Michelle H.; Bush, Richard P.; Beam , Paul; Chamberlain, G. M.; Marble, Justin; Whitehurst, Latrincy; Gerdes, Kurt D.; Collazo, Yvette

2012-05-15T23:59:59.000Z

110

APC: a performance metric of memory systems  

Science Conference Proceedings (OSTI)

Due to the infamous "memory wall" problem and a drastic increase in the number of data intensive applications, memory rather than processor has become the leading performance bottleneck of modern computing systems. Evaluating and understanding memory ... Keywords: measurement methodology, memory metric, memory performance measurement

Xian-He Sun; Dawei Wang

2012-10-01T23:59:59.000Z

111

Tank Waste Remediation System tank waste pretreatment and vitrification process development testing requirements assessment  

Science Conference Proceedings (OSTI)

A multi-faceted study was initiated in November 1993 to provide assurance that needed testing capabilities, facilities, and support infrastructure (sampling systems, casks, transportation systems, permits, etc.) would be available when needed for process and equipment development to support pretreatment and vitrification facility design and construction schedules. This first major report provides a snapshot of the known testing needs for pretreatment, low-level waste (LLW) and high-level waste (HLW) vitrification, and documents the results of a series of preliminary studies and workshops to define the issues needing resolution by cold or hot testing. Identified in this report are more than 140 Hanford Site tank waste pretreatment and LLW/HLW vitrification technology issues that can only be resolved by testing. The report also broadly characterizes the level of testing needed to resolve each issue. A second report will provide a strategy(ies) for ensuring timely test capability. Later reports will assess the capabilities of existing facilities to support needed testing and will recommend siting of the tests together with needed facility and infrastructure upgrades or additions.

Howden, G.F.

1994-10-24T23:59:59.000Z

112

Vitrification Facility integrated system performance testing report  

Science Conference Proceedings (OSTI)

This report provides a summary of component and system performance testing associated with the Vitrification Facility (VF) following construction turnover. The VF at the West Valley Demonstration Project (WVDP) was designed to convert stored radioactive waste into a stable glass form for eventual disposal in a federal repository. Following an initial Functional and Checkout Testing of Systems (FACTS) Program and subsequent conversion of test stand equipment into the final VF, a testing program was executed to demonstrate successful performance of the components, subsystems, and systems that make up the vitrification process. Systems were started up and brought on line as construction was completed, until integrated system operation could be demonstrated to produce borosilicate glass using nonradioactive waste simulant. Integrated system testing and operation culminated with a successful Operational Readiness Review (ORR) and Department of Energy (DOE) approval to initiate vitrification of high-level waste (HLW) on June 19, 1996. Performance and integrated operational test runs conducted during the test program provided a means for critical examination, observation, and evaluation of the vitrification system. Test data taken for each Test Instruction Procedure (TIP) was used to evaluate component performance against system design and acceptance criteria, while test observations were used to correct, modify, or improve system operation. This process was critical in establishing operating conditions for the entire vitrification process.

Elliott, D.

1997-05-01T23:59:59.000Z

113

The NERSC Sustained System Performance (SSP) Metric  

Science Conference Proceedings (OSTI)

Most plans and reports recently discuss only one of four distinct purposes benchmarks are used. The obvious purpose is selection of a system from among its competitors, something that is the main focus of this paper. This purpose is well discussed in many workshops and reports. The second use of benchmarks is validating the selected system actually works the way expected once it arrives. This purpose may be more important than the first reason. The second purpose is particularly key when systems are specified and selected based on performance projections rather than actual runs on the actual hardware. The third use of benchmarks, seldom mentioned, is to assure the system performs as expected throughout its lifetime1, (e.g. after upgrades, changes, and regular use.) Finally, benchmarks are used to guide system designs, something covered in detail in a companion paper from Berkeley's Institute for Performance Studies (BIPS).

Kramer, William; Shalf, John; Strohmaier, Erich

2005-09-18T23:59:59.000Z

114

High Performance Commercial Fenestration Framing Systems  

SciTech Connect

A major objective of the U.S. Department of Energy is to have a zero energy commercial building by the year 2025. Windows have a major influence on the energy performance of the building envelope as they control over 55% of building energy load, and represent one important area where technologies can be developed to save energy. Aluminum framing systems are used in over 80% of commercial fenestration products (i.e. windows, curtain walls, store fronts, etc.). Aluminum framing systems are often required in commercial buildings because of their inherent good structural properties and long service life, which is required from commercial and architectural frames. At the same time, they are lightweight and durable, requiring very little maintenance, and offer design flexibility. An additional benefit of aluminum framing systems is their relatively low cost and easy manufacturability. Aluminum, being an easily recyclable material, also offers sustainable features. However, from energy efficiency point of view, aluminum frames have lower thermal performance due to the very high thermal conductivity of aluminum. Fenestration systems constructed of aluminum alloys therefore have lower performance in terms of being effective barrier to energy transfer (heat loss or gain). Despite the lower energy performance, aluminum is the choice material for commercial framing systems and dominates the commercial/architectural fenestration market because of the reasons mentioned above. In addition, there is no other cost effective and energy efficient replacement material available to take place of aluminum in the commercial/architectural market. Hence it is imperative to improve the performance of aluminum framing system to improve the energy performance of commercial fenestration system and in turn reduce the energy consumption of commercial building and achieve zero energy building by 2025. The objective of this project was to develop high performance, energy efficient commercial fenestration framing systems, by investigating new technologies that would improve the thermal performance of aluminum frames, while maintaining their structural and life-cycle performance. The project targeted an improvement of over 30% (whole window performance) over conventional commercial framing technology by improving the performance of commercial framing systems.

Mike Manteghi; Sneh Kumar; Joshua Early; Bhaskar Adusumalli

2010-01-31T23:59:59.000Z

115

Monitoring SLAC High Performance UNIX Computing Systems  

SciTech Connect

Knowledge of the effectiveness and efficiency of computers is important when working with high performance systems. The monitoring of such systems is advantageous in order to foresee possible misfortunes or system failures. Ganglia is a software system designed for high performance computing systems to retrieve specific monitoring information. An alternative storage facility for Ganglia's collected data is needed since its default storage system, the round-robin database (RRD), struggles with data integrity. The creation of a script-driven MySQL database solves this dilemma. This paper describes the process took in the creation and implementation of the MySQL database for use by Ganglia. Comparisons between data storage by both databases are made using gnuplot and Ganglia's real-time graphical user interface.

Lettsome, Annette K.; /Bethune-Cookman Coll. /SLAC

2005-12-15T23:59:59.000Z

116

Status Report on Transfer of Physical and Hydraulic Properties Databases to the Hanford Environmental Information System - PNNL Remediation Decision Support Project, Task 1, Activity 6  

Science Conference Proceedings (OSTI)

This document provides a status report on efforts to transfer physical and hydraulic property data from PNNL to CHPRC for incorporation into HEIS. The Remediation Decision Support (RDS) Project is managed by Pacific Northwest National Laboratory (PNNL) to support Hanford Site waste management and remedial action decisions by the U.S. Department of Energy and their contractors. The objective of Task 1, Activity 6 of the RDS project is to compile all available physical and hydraulic property data for sediments from the Hanford Site, to port these data into the Hanford Environmental Information System (HEIS), and to make the data web-accessible to anyone on the Hanford Local Area Network via the so-called Virtual Library. These physical and hydraulic property data are used to estimate parameters for analytical and numerical flow and transport models that are used for site risk assessments and evaluation of remedial action alternatives. In past years efforts were made by RDS project staff to compile all available physical and hydraulic property data for Hanford sediments and to transfer these data into SoilVision{reg_sign}, a commercial geotechnical software package designed for storing, analyzing, and manipulating soils data. Although SoilVision{reg_sign} has proven to be useful, its access and use restrictions have been recognized as a limitation to the effective use of the physical and hydraulic property databases by the broader group of potential users involved in Hanford waste site issues. In order to make these data more widely available and useable, a decision was made to port them to HEIS and to make them web-accessible via a Virtual Library module. In FY08 the original objectives of this activity on the RDS project were to: (1) ensure traceability and defensibility of all physical and hydraulic property data currently residing in the SoilVision{reg_sign} database maintained by PNNL, (2) transfer the physical and hydraulic property data from the Microsoft Access database files used by SoilVision{reg_sign} into HEIS, which is currently being maintained by CH2M-Hill Plateau Remediation Company (CHRPC), (3) develop a Virtual Library module for accessing these data from HEIS, and (4) write a User's Manual for the Virtual Library module. The intent of these activities is to make the available physical and hydraulic property data more readily accessible and useable by technical staff and operable unit managers involved in waste site assessments and remedial action decisions for Hanford. In FY08 communications were established between PNNL and staff from Fluor-Hanford Co. (who formerly managed HEIS) to outline the design of a Virtual Library module that could be used to access the physical and hydraulic property data that are to be transferred into HEIS. Data dictionaries used by SoilVision{reg_sign} were also provided to Fluor-Hanford personnel who are now with CHPRC. During ongoing work to ensure traceability and defensibility of all physical and hydraulic property data that currently reside in the SoilVision{reg_sign} database, it was recognized that further work would be required in this effort before the data were actually ported into HEIS. Therefore work on the Virtual Library module development and an accompanying User's Guide was deferred until an unspecified later date. In FY09 efforts have continued to verify the traceability and defensibility of the physical and hydraulic property datasets that are currently being maintained by PNNL. Although this is a work in progress, several of these datasets are now ready for transfer to CHRPC for inclusion in HEIS. The actual loading of data into HEIS is performed by CHPRC staff, so after the data are transferred from PNNL to CHPRC, it will be the responsibility of CHPRC to ensure that these data are loaded and made accessible. This document provides a status report on efforts to transfer physical and hydraulic property data from PNNL to CHPRC for incorporation into HEIS.

Rockhold, Mark L.; Middleton, Lisa A.; Cantrell, Kirk J.

2009-06-30T23:59:59.000Z

117

Performance analysis of memory hierachies in high performance systems  

SciTech Connect

This thesis studies memory bandwidth as a performance predictor of programs. The focus of this work is on computationally intensive programs. These programs are the most likely to access large amounts of data, stressing the memory system. Computationally intensive programs are also likely to use highly optimizing compilers to produce the fastest executables possible. Methods to reduce the amount of data traffic by increasing the average number of references to each item while it resides in the cache are explored. Increasing the average number of references to each cache item reduces the number of memory requests. Chapter 2 describes the DLX architecture. This is the architecture on which all the experiments were performed. Chapter 3 studies memory moves as a performance predictor for a group of application programs. Chapter 4 introduces a model to study the performance of programs in the presence of memory hierarchies. Chapter 5 explores some compiler optimizations that can help increase the references to each item while it resides in the cache.

Yogesh, A.

1993-07-01T23:59:59.000Z

118

PERFORMANCE OF THE AGS TRANSITION JUMP SYSTEM.  

SciTech Connect

The transition jump system has been indispensable to the high intensity proton operation of the AGS complex. Nevertheless, transition crossing remains one of the major hurdles as the accelerator complex intensity is pushed upward. To enhance the performance of the system ''quadrupole pumping'' in the Booster is used to minimize the necessary longitudinal dilution of the beam on the AGS injection porch. During the transition jump sextupole correctors at strategic locations are pulsed to minimize the effects of the chromatic non-linearity of the jump system. The available instrumentation for diagnosing the performance of the system will be described, along with installed hardware to counter the non-linear effects of the transition jump system.

AHRENS,L.A.; BRENNAN,J.M.; GLENN,J.W.; ROSER,T.; VAN ASSELT,W.K.

1999-03-29T23:59:59.000Z

119

Quantitative training system assessments using General Systems Performance Theory  

E-Print Network (OSTI)

The use of computers for imparting education and training is rapidly gaining widespread acceptance. There is considerable evidence in literature to show that computer-based training (CBT) can lower training costs and shorten the time taken to complete training. Although considerable work has been done in the area of development of computer-based training systems, there has been little work done in the domain of assessing the effectiveness of using computer-based methods for the purposes of training. Furthermore, performance evaluations of CBT systems to date have been performed using ad-hoc, context-specific methods. There is thus a need to provide a uniform basis for performance assessments of computer-based training systems. This thesis presents a quantitative approach to the problem of performance assessments of CBT systems, using a theoretical framework known as General Systems Performance Theory. We believe the approach presented in this thesis can be used to provide a quantitative characterization of the performance of any training system in any training domain. The thesis also demonstrates the proposed approach by applying it to evaluate the performance of a set of training systems towards achieving the goal of training situational awareness skills.

Kashyap, Sujatha

2000-01-01T23:59:59.000Z

120

2007 Performance Metrics for Intelligent Systems (PerMIS'07) ...  

Science Conference Proceedings (OSTI)

... and modeling support. Technology readiness measures ... Hazardous environments (eg, nuclear remediation); ... Eric Krotkov Griffin Technologies USA. ...

2013-01-13T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Pinellas Remediation Agreement Summary  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pinellas Pinellas Agreement Name Remediation Agreement for the Four and One-Half Acre Site in Largo, Pinellas County, Florida State Florida Agreement Type Remediation Agreement Legal Driver(s) CERCLA/ Atomic Energy Act of 1954, as amended/ Florida Air and Water Pollution Control Act Scope Summary Remediation of property adjacent to the former Pinellas Plant Parties DOE; Florida Department of Environmental Protection Date 3/12/2001 SCOPE * Remediate the groundwater under a parcel of property adjacent to DOE's former Pinellas Plant to levels consistent with industrial use. * Complete remedial actions at the site in accordance with a Remedial Action Plan prepared by DOE and approved by FDEP. * Submit quarterly reports of interim remedial actions at the Site.

122

Performance comparison of streak camera recording systems  

Science Conference Proceedings (OSTI)

Streak camera based diagnostics are vital to the inertial confinement fusion program at Sandia National Laboratories. Performance characteristics of various readout systems coupled to an EGG-AVO streak camera were analyzed and compared to scaling estimates. The purpose of the work was to determine the limits of the streak camera performance and the optimal fielding conditions for the Amador Valley Operations (AVO) streak camera systems. The authors measured streak camera limitations in spatial resolution and sensitivity. Streak camera limits on spatial resolution are greater than 18 lp/mm at 4% contrast. However, it will be difficult to make use of any resolution greater than this because of high spatial frequency variation in the photocathode sensitivity. They have measured a signal to noise of 3,000 with 0.3 mW/cm{sup 2} of 830 nm light at a 10 ns/mm sweep speed. They have compared lens coupling systems with and without micro-channel plate intensifiers and systems using film or charge coupled device (CCD) readout. There were no conditions where film was found to be an improvement over the CCD readout. Systems utilizing a CCD readout without an intensifier have comparable resolution, for these source sizes and at a nominal cost in signal to noise of 3, over those with an intensifier. Estimates of the signal-to-noise for different light coupling methods show how performance can be improved.

Derzon, M. [Sandia National Labs., Albuquerque, NM (United States). Diagnostics and Target Experiment Dept.; Barber, T. [K-tech Corp., Albuquerque, NM (United States)

1995-07-01T23:59:59.000Z

123

Forced Air Systems in High Performance Homes  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FORCED AIR SYSTEMS IN FORCED AIR SYSTEMS IN HIGH PERFORMANCE HOMES Iain Walker (LBNL) Building America Meeting 2013 What are the issues? 1. Sizing  When is too small too small? 2. Distribution  Can we get good mixing at low flow? 3. Performance  Humidity Control  Part load efficiency  Blowers & thermal losses Sizing  Part-load - not an issue with modern equipment  Careful about predicted loads - a small error becomes a big problem for tightly sized systems  Too Low Capacity = not robust  Extreme vs. design days  Change in occupancy  Party mode  Recovery from setback Sizing  Conventional wisdom - a good envelope = easy to predict and not sensitive to indoor conditions  But..... Heating and cooling become discretionary - large variability depending on occupants

124

Summary of photovoltaic system performance models  

DOE Green Energy (OSTI)

The purpose of this study is to provide a detailed overview of photovoltaics (PV) performance modeling capabilities that have been developed during recent years for analyzing PV system and component design and policy issues. A set of 10 performance models have been selected which span a representative range of capabilities from generalized first-order calculations to highly specialized electrical network simulations. A set of performance modeling topics and characteristics is defined and used to examine some of the major issues associated with photovoltaic performance modeling. Next, each of the models is described in the context of these topics and characteristics to assess its purpose, approach, and level of detail. Then each of the issues is discussed in terms of the range of model capabilities available and summarized in tabular form for quick reference. Finally, the models are grouped into categories to illustrate their purposes and perspectives.

Smith, J. H.; Reiter, L. J.

1984-01-15T23:59:59.000Z

125

Optimizing Hydronic System Performance in Residential Applications  

SciTech Connect

Even though new homes constructed with hydronic heat comprise only 3% of the market (US Census Bureau 2009), of the 115 million existing homes in the United States, almost 14 million of those homes (11%) are heated with steam or hot water systems according to 2009 US Census data. Therefore, improvements in hydronic system performance could result in significant energy savings in the US. When operating properly, the combination of a gas-fired condensing boiler with baseboard convectors and an indirect water heater is a viable option for high-efficiency residential space heating in cold climates. Based on previous research efforts, however, it is apparent that these types of systems are typically not designed and installed to achieve maximum efficiency. Furthermore, guidance on proper design and commissioning for heating contractors and energy consultants is hard to find and is not comprehensive. Through modeling and monitoring, CARB sought to determine the optimal combination(s) of components - pumps, high efficiency heat sources, plumbing configurations and controls - that result in the highest overall efficiency for a hydronic system when baseboard convectors are used as the heat emitter. The impact of variable-speed pumps on energy use and system performance was also investigated along with the effects of various control strategies and the introduction of thermal mass.

Arena, L.; Faakye, O.

2013-10-01T23:59:59.000Z

126

Simulating the Daylight Performance of Complex Fenestration Systems...  

NLE Websites -- All DOE Office Websites (Extended Search)

Daylight Performance of Complex Fenestration Systems Using Bidirectional Scattering Distribution Functions within Radiance Title Simulating the Daylight Performance of Complex...

127

Simulation of residential HVAC system performance  

SciTech Connect

In many parts of North America residential HVAC systems are installed outside conditioned space. This leads to significant energy losses and poor occupant comfort due to conduction and air leakage losses from the air distribution ducts. In addition, cooling equipment performance is sensitive to air flow and refrigerant charge that have been found to be far from manufacturers specifications in most systems. The simulation techniques discussed in this paper were developed in an effort to provide guidance on the savings potentials and comfort gains that can be achieved by improving ducts (sealing air leaks) and equipment (correct air-flow and refrigerant charge). The simulations include the complex air flow and thermal interactions between duct systems, their surroundings and the conditioned space. They also include cooling equipment response to air flow and refrigerant charge effects. Another key aspect of the simulations is that they are dynamic--which accounts for cyclic losses from the HVAC system and the effect of cycle length on energy and comfort performance.

Walker, I.S.; Siegel, J.A.; Degenetais, G.

2001-05-01T23:59:59.000Z

128

Performance of the ALICE VZERO system  

E-Print Network (OSTI)

ALICE is an LHC experiment devoted to the study of strongly interacting matter in proton--proton, proton--nucleus and nucleus--nucleus collisions at ultra-relativistic energies. The ALICE VZERO system, made of two scintillator arrays at asymmetric positions, one on each side of the interaction point, plays a central role in ALICE. In addition to its core function as a trigger, the VZERO system is used to monitor LHC beam conditions, to reject beam-induced backgrounds and to measure basic physics quantities such as luminosity, particle multiplicity, centrality and event plane direction in nucleus-nucleus collisions. After describing the VZERO system, this publication presents its performance over more than four years of operation at the LHC.

ALICE Collaboration

2013-06-13T23:59:59.000Z

129

Performance of the ATLAS Trigger System  

E-Print Network (OSTI)

The ATLAS Trigger System reduces the event rate from the bunch-crossing rate of $40 \\rm \\ MHz$ to an average recording rate of $200 \\rm \\ Hz$ by selecting high-$p_{T}$ physics events. The ATLAS Trigger is composed of three levels. The first level (L1) is implemented in custom-built electronics, the two-stage High Level Trigger (HLT) is implemented in software executed on large computing farms. The L1 consists of calorimeter, muon and forward triggers to identify electron, photon, jet and muon candidates, as well as event features such as missing transverse energy. These inputs are used by the L1 Central Trigger to generate an L1 Accept (L1A) decision. L1A and timing information is sent to all sub-detectors and summary information is sent to the subsequent levels of the Trigger System. In this paper the performance of the ATLAS Trigger System in 2010 and 2011 is presented.

Gabaldon, C

2012-01-01T23:59:59.000Z

130

Use of energy management systems for performance monitoring of...  

NLE Websites -- All DOE Office Websites (Extended Search)

Use of energy management systems for performance monitoring of industrial load-shaping measures Title Use of energy management systems for performance monitoring of industrial...

131

Savannah River Remediation Procurement  

NLE Websites -- All DOE Office Websites (Extended Search)

and procedures, rules and regulations, terms and conditions and the orders and directives under which Savannah River Remediation LLC (SRR) develops, issues, administers and...

132

Oxygen enriched combustion system performance study  

SciTech Connect

The current study was undertaken to evaluate the performance of a pressure swing adsorption (PSA) oxygen plant to provide oxygen for industrial combustion applications. PSA oxygen plants utilize a molecular sieve material to separate air into an oxygen rich product stream and a nitrogen rich exhaust stream. These plants typically produce 90-95% purity oxygen and are located in close proximity to the point of use. In contrast, high purity (99.999%) oxygen is produced by the distillation of liquid air at a remote plant and is usually transported to the point of use either as a cryogenic liquid in a tank trailer or as a high pressure gas via pipeline. In this study, experiments were performed to the test PSA system used in conjunction with an A'' burner and comparisons were made with the results of the previous study which utilized high purity liquid oxygen. 4 refs., 6 figs., 6 tabs.

Delano, M.A. (Union Carbide Industrial Gases, Inc., Tarrytown, NY (USA)); Kwan, Y. (Energy and Environmental Research Corp., Irvine, CA (USA))

1989-07-01T23:59:59.000Z

133

Human performance modeling for system of systems analytics.  

Science Conference Proceedings (OSTI)

A Laboratory-Directed Research and Development project was initiated in 2005 to investigate Human Performance Modeling in a System of Systems analytic environment. SAND2006-6569 and SAND2006-7911 document interim results from this effort; this report documents the final results. The problem is difficult because of the number of humans involved in a System of Systems environment and the generally poorly defined nature of the tasks that each human must perform. A two-pronged strategy was followed: one prong was to develop human models using a probability-based method similar to that first developed for relatively well-understood probability based performance modeling; another prong was to investigate more state-of-art human cognition models. The probability-based modeling resulted in a comprehensive addition of human-modeling capability to the existing SoSAT computer program. The cognitive modeling resulted in an increased understanding of what is necessary to incorporate cognition-based models to a System of Systems analytic environment.

Dixon, Kevin R.; Lawton, Craig R.; Basilico, Justin Derrick; Longsine, Dennis E. (INTERA, Inc., Austin, TX); Forsythe, James Chris; Gauthier, John Henry; Le, Hai D.

2008-10-01T23:59:59.000Z

134

Savannah River Remediation SRR Savannah River Remediation SRR  

NLE Websites -- All DOE Office Websites (Extended Search)

- Hanford Paducah Remediation Services Bechtel Jacobs - ETTP DOE-EM Average without Construction WRPS - TOC Hanford Mission Support Alliance - RL Bechtel National Remediation...

135

Middleware in Modern High Performance Computing System Architectures  

E-Print Network (OSTI)

Middleware in Modern High Performance Computing System Architectures Christian Engelmann, Hong Ong trend in modern high performance computing (HPC) system architectures employs "lean" compute nodes) continue to reside on compute nodes. Key words: High Performance Computing, Middleware, Lean Compute Node

Engelmann, Christian

136

SYSTEMS ENGINEERING FOR HIGH PERFORMANCE COMPUTING SOFTWARE: THE HDDA DAGH  

E-Print Network (OSTI)

SYSTEMS ENGINEERING FOR HIGH PERFORMANCE COMPUTING SOFTWARE: THE HDDA DAGH INFRASTRUCTURE systems implementing high performance computing applications. The example which drives the creation in the context of high performance computing software. Applicationof these principleswill be seen

Parashar, Manish

137

Advanced fenestration systems for improved daylight performance  

E-Print Network (OSTI)

system efficacy of a daylighting system will vary with theupon the specifics of daylighting system. Skylighted systemsabove, we believe that daylighting systems continue to have

Selkowitz, S.; Lee, E.S.

1998-01-01T23:59:59.000Z

138

Transfer of Physical and Hydraulic Properties Databases to the Hanford Environmental Information System - PNNL Remediation Decision Support Project, Task 1, Activity 6  

Science Conference Proceedings (OSTI)

This report documents the requirements for transferring physical and hydraulic property data compiled by PNNL into the Hanford Environmental Information System (HEIS). The Remediation Decision Support (RDS) Project is managed by Pacific Northwest National Laboratory (PNNL) to support Hanford Site waste management and remedial action decisions by the U.S. Department of Energy and one of their current site contractors - CH2M-Hill Plateau Remediation Company (CHPRC). The objective of Task 1, Activity 6 of the RDS project is to compile all available physical and hydraulic property data for sediments from the Hanford Site, to port these data into the Hanford Environmental Information System (HEIS), and to make the data web-accessible to anyone on the Hanford Local Area Network via the so-called Virtual Library.1 These physical and hydraulic property data are used to estimate parameters for analytical and numerical flow and transport models that are used for site risk assessments and evaluation of remedial action alternatives. In past years efforts were made by RDS project staff to compile all available physical and hydraulic property data for Hanford sediments and to transfer these data into SoilVision{reg_sign}, a commercial geotechnical software package designed for storing, analyzing, and manipulating soils data. Although SoilVision{reg_sign} has proven to be useful, its access and use restrictions have been recognized as a limitation to the effective use of the physical and hydraulic property databases by the broader group of potential users involved in Hanford waste site issues. In order to make these data more widely available and useable, a decision was made to port them to HEIS and to make them web-accessible via a Virtual Library module. In FY08 the original objectives of this activity on the RDS project were to: (1) ensure traceability and defensibility of all physical and hydraulic property data currently residing in the SoilVision{reg_sign} database maintained by PNNL, (2) transfer the physical and hydraulic property data from the Microsoft Access database files used by SoilVision{reg_sign} into HEIS, which is currently being maintained by CHRPC, (3) develop a Virtual Library module for accessing these data from HEIS, and (4) write a User's Manual for the Virtual Library module. The intent of these activities is to make the available physical and hydraulic property data more readily accessible and useable by technical staff and operable unit managers involved in waste site assessments and remedial action decisions for Hanford. In FY08 communications were established between PNNL and staff from Fluor-Hanford Co. (who formerly managed HEIS) to outline the design of a Virtual Library module that could be used to access the physical and hydraulic property data that are to be transferred into HEIS. Data dictionaries used by SoilVision{reg_sign} were also provided to Fluor-Hanford personnel (who are now with CHPRC). During ongoing work to ensure traceability and defensibility of all physical and hydraulic property data that currently reside in the SoilVision{reg_sign} database, it was recognized that further work would be required in this effort before the data were actually ported into HEIS. Therefore work on the Virtual Library module development and an accompanying User's Guide was deferred until an unspecified later date. In FY09 efforts have continued to verify the traceability and defensibility of the physical and hydraulic property datasets that are currently being maintained by PNNL. Although this is a work in progress, several of these datasets should be ready for transfer to HEIS in the very near future. This document outlines a plan for the migration of these datasets into HEIS.

Rockhold, Mark L.; Middleton, Lisa A.

2009-03-31T23:59:59.000Z

139

PERFORMANCE OF THE DIII-D SYSTEM  

SciTech Connect

A271 PERFORMANCE OF THE DIII-D SYSTEM. Three 110 GHz gyrotrons with nominal output power of 1 MW each have been installed and are operational on the DIII-D tokamak. All three gyrotrons were built by Communications and Power Industries (CPI). The CPI gyrotrons utilize a single disc CVD (chemical-vapor-deposition) diamond window that employs water cooling around the edge of the disc. Calculations predict that the CVD diamond window should be capable of full 1 MW cw operation, which is supported by IR camera measurements that show the window reaching equilibrium after 2.5 s. All gyrotrons are connected to the tokamak by low-loss-windowless evacuated transmission line using circular corrugated waveguide for propagation in the HE{sub 11} mode. Each waveguide system incorporates a two-mirror launcher, which can steer the rf beam poloidally from the center to the outer edge of the plasma. Results obtained using the DIII-D ECH systems will be reported.

CALLIS,RW; KAJIWARA,K; LOHR,J; GORELOV,YA; PONCE,D

2003-08-01T23:59:59.000Z

140

Innovative Vitrification for Soil Remediation  

DOE Green Energy (OSTI)

Vortec has successfully completed Phases 1 and 2 of a technology demonstration program for an ''Innovative Fossil Fuel Fired Vitrification Technology for Soil Remediation.'' The principal objective of the program is to demonstrate the ability of a Vortec Cyclone Melting System (CMS) to remediate DOE contaminated soils and other waste forms containing TM RCRA hazardous materials, low levels of radionuclides and TSCA (PCB) containing wastes. The demonstration program will verify the ability of this vitrification process to produce a chemically stable glass final waste form which passes both TCLP and PCT quality control requirements, while meeting all federal and state emission control regulations. The demonstration system is designed to process 36 ton/day of as-received drummed or bulk wastes. The processing capacity equates to approximately 160 barrels/day of waste materials containing 30% moisture at an average weight of 450 lbs./barrel.

Hnat, James G.; Patten, John S.; Jetta, Norman W.

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Wall System Innovations: Familiar Materials, Better Performance  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 1 Wall System Innovation Vladimir Kochkin Joseph Wiehagen April 2013 Wall Innovation Metrics  High R (thermal and air barrier)  High Performance  Durable, structural  Build-able  Low transition risk to builders  50% Building America Goal  ≈ R25+ (CZ 4 and higher) 2 Background  Technologies for high-R walls have been proposed and used for over 25 years  But real market penetration is very low  Often the last EE measure implemented by builders (e.g. E*) 3 Background  High-R wall solutions have not achieved a broad level of standardization and commonality  A large set of methods and materials entered the market  Multiple and conflicting details  Wall characteristics are more critical = RISK 4 New Home Starts -

142

Performance of the ATLAS trigger system  

E-Print Network (OSTI)

The ATLAS trigger has been used very successfully to collect collision data during 2009-2011 LHC running at centre of mass energies between 900 GeV and 7 TeV. The three-level trigger system reduces the event rate from the design bunch-crossing rate of 40 MHz to an average recording rate of about 300 Hz. The first level uses custom electronics to reject most background collisions, in less than 2.5 us, using information from the calorimeter and muon detectors. The upper two trigger levels are software-based triggers. The trigger system selects events by identifying signatures of muon, electron, photon, tau lepton, jet, and B meson candidates, as well as using global event signatures, such as missing transverse energy. We give an overview of the performance of these trigger selections based on extensive online running during the 2011 LHC run and discuss issues encountered during 2011 operations. Distributions of key selection variables are shown calculated at the different trigger levels and are compared with of...

Casadei, D; The ATLAS collaboration

2012-01-01T23:59:59.000Z

143

Advanced fenestration systems for improved daylight performance  

E-Print Network (OSTI)

S.E. Selkowitz. Advanced Optical Daylighting Systems: LightAdvanced Fenestration Systems Based on the analysis presented above, we believe that daylighting systems

Selkowitz, S.; Lee, E.S.

1998-01-01T23:59:59.000Z

144

Performance model assessment for multi-junction concentrating photovoltaic systems.  

DOE Green Energy (OSTI)

Four approaches to modeling multi-junction concentrating photovoltaic system performance are assessed by comparing modeled performance to measured performance. Measured weather, irradiance, and system performance data were collected on two systems over a one month period. Residual analysis is used to assess the models and to identify opportunities for model improvement.

Riley, Daniel M.; McConnell, Robert. (Amonix, Inc., Seal Beach, CA); Sahm, Aaron (University of Nevada, Las Vegas, NV); Crawford, Clark (Amonix, Inc., Seal Beach, CA); King, David L.; Cameron, Christopher P.; Foresi, James S. (Emcore, Inc., Albuquerque, NM)

2010-03-01T23:59:59.000Z

145

High-performance commercial building systems  

SciTech Connect

This report summarizes key technical accomplishments resulting from the three year PIER-funded R&D program, ''High Performance Commercial Building Systems'' (HPCBS). The program targets the commercial building sector in California, an end-use sector that accounts for about one-third of all California electricity consumption and an even larger fraction of peak demand, at a cost of over $10B/year. Commercial buildings also have a major impact on occupant health, comfort and productivity. Building design and operations practices that influence energy use are deeply engrained in a fragmented, risk-averse industry that is slow to change. Although California's aggressive standards efforts have resulted in new buildings designed to use less energy than those constructed 20 years ago, the actual savings realized are still well below technical and economic potentials. The broad goal of this program is to develop and deploy a set of energy-saving technologies, strategies, and techniques, and improve processes for designing, commissioning, and operating commercial buildings, while improving health, comfort, and performance of occupants, all in a manner consistent with sound economic investment practices. Results are to be broadly applicable to the commercial sector for different building sizes and types, e.g. offices and schools, for different classes of ownership, both public and private, and for owner-occupied as well as speculative buildings. The program aims to facilitate significant electricity use savings in the California commercial sector by 2015, while assuring that these savings are affordable and promote high quality indoor environments. The five linked technical program elements contain 14 projects with 41 distinct R&D tasks. Collectively they form a comprehensive Research, Development, and Demonstration (RD&D) program with the potential to capture large savings in the commercial building sector, providing significant economic benefits to building owners and health and performance benefits to occupants. At the same time this program can strengthen the growing energy efficiency industry in California by providing new jobs and growth opportunities for companies providing the technology, systems, software, design, and building services to the commercial sector. The broad objectives across all five program elements were: (1) To develop and deploy an integrated set of tools and techniques to support the design and operation of energy-efficient commercial buildings; (2) To develop open software specifications for a building data model that will support the interoperability of these tools throughout the building life-cycle; (3) To create new technology options (hardware and controls) for substantially reducing controllable lighting, envelope, and cooling loads in buildings; (4) To create and implement a new generation of diagnostic techniques so that commissioning and efficient building operations can be accomplished reliably and cost effectively and provide sustained energy savings; (5) To enhance the health, comfort and performance of building occupants. (6) To provide the information technology infrastructure for owners to minimize their energy costs and manage their energy information in a manner that creates added value for their buildings as the commercial sector transitions to an era of deregulated utility markets, distributed generation, and changing business practices. Our ultimate goal is for our R&D effort to have measurable market impact. This requires that the research tasks be carried out with a variety of connections to key market actors or trends so that they are recognized as relevant and useful and can be adopted by expected users. While some of this activity is directly integrated into our research tasks, the handoff from ''market-connected R&D'' to ''field deployment'' is still an art as well as a science and in many areas requires resources and a timeframe well beyond the scope of this PIER research program. The TAGs, PAC

Selkowitz, Stephen

2003-10-01T23:59:59.000Z

146

High-performance commercial building systems  

SciTech Connect

This report summarizes key technical accomplishments resulting from the three year PIER-funded R&D program, ''High Performance Commercial Building Systems'' (HPCBS). The program targets the commercial building sector in California, an end-use sector that accounts for about one-third of all California electricity consumption and an even larger fraction of peak demand, at a cost of over $10B/year. Commercial buildings also have a major impact on occupant health, comfort and productivity. Building design and operations practices that influence energy use are deeply engrained in a fragmented, risk-averse industry that is slow to change. Although California's aggressive standards efforts have resulted in new buildings designed to use less energy than those constructed 20 years ago, the actual savings realized are still well below technical and economic potentials. The broad goal of this program is to develop and deploy a set of energy-saving technologies, strategies, and techniques, and improve processes for designing, commissioning, and operating commercial buildings, while improving health, comfort, and performance of occupants, all in a manner consistent with sound economic investment practices. Results are to be broadly applicable to the commercial sector for different building sizes and types, e.g. offices and schools, for different classes of ownership, both public and private, and for owner-occupied as well as speculative buildings. The program aims to facilitate significant electricity use savings in the California commercial sector by 2015, while assuring that these savings are affordable and promote high quality indoor environments. The five linked technical program elements contain 14 projects with 41 distinct R&D tasks. Collectively they form a comprehensive Research, Development, and Demonstration (RD&D) program with the potential to capture large savings in the commercial building sector, providing significant economic benefits to building owners and health and performance benefits to occupants. At the same time this program can strengthen the growing energy efficiency industry in California by providing new jobs and growth opportunities for companies providing the technology, systems, software, design, and building services to the commercial sector. The broad objectives across all five program elements were: (1) To develop and deploy an integrated set of tools and techniques to support the design and operation of energy-efficient commercial buildings; (2) To develop open software specifications for a building data model that will support the interoperability of these tools throughout the building life-cycle; (3) To create new technology options (hardware and controls) for substantially reducing controllable lighting, envelope, and cooling loads in buildings; (4) To create and implement a new generation of diagnostic techniques so that commissioning and efficient building operations can be accomplished reliably and cost effectively and provide sustained energy savings; (5) To enhance the health, comfort and performance of building occupants. (6) To provide the information technology infrastructure for owners to minimize their energy costs and manage their energy information in a manner that creates added value for their buildings as the commercial sector transitions to an era of deregulated utility markets, distributed generation, and changing business practices. Our ultimate goal is for our R&D effort to have measurable market impact. This requires that the research tasks be carried out with a variety of connections to key market actors or trends so that they are recognized as relevant and useful and can be adopted by expected users. While some of this activity is directly integrated into our research tasks, the handoff from ''market-connected R&D'' to ''field deployment'' is still an art as well as a science and in many areas requires resources and a timeframe well beyond the scope of this PIER research program. The TAGs, PAC and other industry partners have assisted directly in this effort

Selkowitz, Stephen

2003-10-01T23:59:59.000Z

147

Energy Performance Assessment for Equipment and Utility Systems...  

Open Energy Info (EERE)

Energy Performance Assessment for Equipment and Utility Systems: Third Edition Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Performance Assessment for...

148

Enterprise performance measurement system : metric design framework and tools  

E-Print Network (OSTI)

Existing metric selection methodologies and performance measurement frameworks provide practicing managers with good checklists and tools to evaluate and design their enterprise performance measurement systems (EPMS) and ...

Teo, Kai Siang

2013-01-01T23:59:59.000Z

149

Savannah River Remediation Intern Sees Nuclear Industry as Job Opportunity  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Savannah River Remediation Intern Sees Nuclear Industry as Job Savannah River Remediation Intern Sees Nuclear Industry as Job Opportunity Savannah River Remediation Intern Sees Nuclear Industry as Job Opportunity July 9, 2012 - 10:00am Addthis Spencer Isom, second year engineering intern for Savannah River Remediation (SRR) and fourth summer at Savannah River Site (SRS), performs a standard equipment check at Saltstone Production Facility. | Photo courtesy of Savannah River Site Spencer Isom, second year engineering intern for Savannah River Remediation (SRR) and fourth summer at Savannah River Site (SRS), performs a standard equipment check at Saltstone Production Facility. | Photo courtesy of Savannah River Site Maddie M. Blair Public Affairs Intern, Savannah River Remediation Why does she keep coming back? "There are so many fascinating processes, people, and work

150

Savannah River Remediation Intern Sees Nuclear Industry as Job Opportunity  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Savannah River Remediation Intern Sees Nuclear Industry as Job Savannah River Remediation Intern Sees Nuclear Industry as Job Opportunity Savannah River Remediation Intern Sees Nuclear Industry as Job Opportunity July 9, 2012 - 10:00am Addthis Spencer Isom, second year engineering intern for Savannah River Remediation (SRR) and fourth summer at Savannah River Site (SRS), performs a standard equipment check at Saltstone Production Facility. | Photo courtesy of Savannah River Site Spencer Isom, second year engineering intern for Savannah River Remediation (SRR) and fourth summer at Savannah River Site (SRS), performs a standard equipment check at Saltstone Production Facility. | Photo courtesy of Savannah River Site Maddie M. Blair Public Affairs Intern, Savannah River Remediation Why does she keep coming back? "There are so many fascinating processes, people, and work

151

Source Remediation vs. Plume  

E-Print Network (OSTI)

This summary paper reviews just some of the extensive scientific literature from the past 20 years on the various aspects of contaminant source remediation and plume management. Some of the major findings of the numerous research projects are presented.

Management Critical Factors; G. Teutsch; H. Rgner; D. Zamfirescu; M. Finkel; M. Bittens

2001-01-01T23:59:59.000Z

152

Attenuation Based Remedies  

Energy.gov (U.S. Department of Energy (DOE))

The mission of the Attenuation Based Remedies in the Subsurface Applied Field Research Initiative is to seek holistic solutions to DOEs groundwater contamination problems that consider not only...

153

Radiological Survey Results for Areas A1 North, A5A, A6, and B2 at the Molycorp Washington Remediation Project, Washington, Pennsylvania  

SciTech Connect

Perform radiological surveys of the Molycorp Washington Remediation Project (MWRP) facility in Washington, Pennsylvania

W.C. Adams

2007-03-13T23:59:59.000Z

154

Selection of a computer code for Hanford low-level waste engineered-system performance assessment  

Science Conference Proceedings (OSTI)

Planned performance assessments for the proposed disposal of low-level waste (LLW) glass produced from remediation of wastes stored in underground tanks at Hanford, Washington will require calculations of radionuclide release rates from the subsurface disposal facility. These calculations will be done with the aid of computer codes. Currently available computer codes were ranked in terms of the feature sets implemented in the code that match a set of physical, chemical, numerical, and functional capabilities needed to assess release rates from the engineered system. The needed capabilities were identified from an analysis of the important physical and chemical process expected to affect LLW glass corrosion and the mobility of radionuclides. The highest ranked computer code was found to be the ARES-CT code developed at PNL for the US Department of Energy for evaluation of and land disposal sites.

McGrail, B.P.; Mahoney, L.A.

1995-10-01T23:59:59.000Z

155

Resource characterization and residuals remediation, Task 1.0: Air quality assessment and control, Task 2.0: Advanced power systems, Task 3.0: Advanced fuel forms and coproducts, Task 4.0  

SciTech Connect

This report addresses three subtasks related to the Resource Characterization and Residuals Remediation program: (1) sulfur forms in coal and their thermal transformations, (2) data resource evaluation and integration using GIS (Geographic Information Systems), and (3) supplementary research related to the Rocky Mountain 1 (RM1) UCG (Underground Coal Gasification) test program.

Hawthorne, S.B.; Timpe, R.C.; Hartman, J.H. [and others

1994-02-01T23:59:59.000Z

156

HPC application performance and scaling : understanding trends and future challenges with application benchmarks on past, present and future Tri-Lab computing systems.  

Science Conference Proceedings (OSTI)

In this paper HPC architectural characteristics and their impact on application performance and scaling are investigated. Performance data gathered over several generations of very large HPC systems like: ASC Red Storm, ASC Purple, and a large InfiniBand cluster - Red Sky, are analyzed. As the number of cache coherent cores and number of NUMA domains at a compute node keeps increasing, we analyze their impact with a few simple benchmarks and several applications. We present bottlenecks and remedies examining production applications. We conclude with preliminary early-hardware performance data from the ASC Cielo, a petaFLOPS class future capability system.

Rajan, Mahesh; Doerfler, Douglas W.

2010-07-01T23:59:59.000Z

157

Homepage: High-Performance Computing Systems, HPC-3: High-Performance...  

NLE Websites -- All DOE Office Websites (Extended Search)

1188 667-5243 Fax: 667-7665 MS T080 Computing Solutions that work for you High-Performance Computing Systems The High-Performance Computing Systems Group provides production...

158

High-performance commercial building systems  

E-Print Network (OSTI)

HVAC engineers and operators to optimize energy performance of buildings; and Develop simulation-based test and optimization

Selkowitz, Stephen

2003-01-01T23:59:59.000Z

159

Introduction to the TAU Performance System  

E-Print Network (OSTI)

participation through the development ­ ANL's ALCF INCITE Performance Workshop ­ Jülich's Blue Gene/P Porting

Kemner, Ken

160

High-performance commercial building systems  

E-Print Network (OSTI)

for Energy and Maintenance Management. Villafana, L. and C.Computerized Maintenance Management Systems Coefficient offrom computerized maintenance management systems (CMMS) and

Selkowitz, Stephen

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Performance analysis of hybrid liquid desiccant solar cooling system.  

E-Print Network (OSTI)

??This thesis investigates the coefficient of performance (COP) of a hybrid liquid desiccant solar cooling system. This hybrid cooling system includes three sections: 1) conventional (more)

Zhou, Zhipeng (Joe Zoe)

2009-01-01T23:59:59.000Z

162

C++ programming techniques for High Performance Computing on systems with  

E-Print Network (OSTI)

C++ programming techniques for High Performance Computing on systems with non-uniform memory access (including NUMA) without sacrificing performance. ccNUMA In High Performance Computing (HPC), shared- memory

Sanderson, Yasmine

163

Towards a multi-dimensional project Performance Measurement System  

Science Conference Proceedings (OSTI)

This paper discusses the difficulty of controlling a complex project caused by the great number of performance indicators. The problem studied is how to allow project managers to better control the performance of their projects. From a literature review ... Keywords: Decision Support Systems, Multiple criteria analysis, Performance Measurement System, Project management, Project performance

Matthieu Lauras; Guillaume Marques; Didier Gourc

2010-01-01T23:59:59.000Z

164

A survey of computer systems for expressive music performance  

Science Conference Proceedings (OSTI)

We present a survey of research into automated and semiautomated computer systems for expressive performance of music. We will examine the motivation for such systems and then examine the majority of the systems developed over the last 25 years. To highlight ... Keywords: Music performance, computer music, generative performance, machine learning

Alexis Kirke; Eduardo Reck Miranda

2009-12-01T23:59:59.000Z

165

Building Performance Monitoring, Control, and Information Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

are of critical importance in achieving optimal low-energy building performance. Advanced monitoring and control technologies with high energy saving potential are widely...

166

Performance of Integrated Systems of Automated Roller Shade Systems...  

NLE Websites -- All DOE Office Websites (Extended Search)

032011 Keywords automated roller shade systems, daylight responsive dimming systems, daylighting, Integrated systems, photoelectric controls Abstract Daylight responsive...

167

Uranium Mill Tailings Remedial Action Project 1993 Environmental Report  

SciTech Connect

This annual report documents the Uranium Mill Tailing Remedial Action (UMTRA) Project environmental monitoring and protection program. The UMTRA Project routinely monitors radiation, radioactive residual materials, and hazardous constituents at associated former uranium tailings processing sites and disposal sites. At the end of 1993, surface remedial action was complete at 10 of the 24 designated UMTRA Project processing sites. In 1993 the UMTRA Project office revised the UMTRA Project Environmental Protection Implementation Plan, as required by the US DOE. Because the UMTRA Project sites are in different stages of remedial action, the breadth of the UMTRA environmental protection program differs from site to site. In general, sites actively undergoing surface remedial action have the most comprehensive environmental programs for sampling media. At sites where surface remedial action is complete and at sites where remedial action has not yet begun, the environmental program consists primarily of surface water and ground water monitoring to support site characterization, baseline risk assessments, or disposal site performance assessments.

Not Available

1994-10-01T23:59:59.000Z

168

A HIGH PERFORMANCE/LOW COST ACCELERATOR CONTROL SYSTEM  

E-Print Network (OSTI)

LOW COST ACCELERATOR CONTROL SYSTEM S. Hagyary, J. Glat H.LOW COST ACCELERATOR CONTROL SYSTEM S. Magyary, J. Glatz, H.a high performance computer control system tailored to the

Magyary, S.

2010-01-01T23:59:59.000Z

169

Photovoltaic System Performance Assessment for 1988  

Science Conference Proceedings (OSTI)

Performance data from five utility-grade photovoltaic power plants demonstrate not only that plants generally operate well but also that recent designs have resolved problems afflicting earlier installations.

1990-01-08T23:59:59.000Z

170

Simulation of residential HVAC system performance  

E-Print Network (OSTI)

house in 16 California climate zones. The typical (base)weather data include all 16 climate Zones for the state ofwere performed for climate zones from 8 to 15 because other

Walker, I.S.; Siegel, J.A.; Degenetais, G.

2001-01-01T23:59:59.000Z

171

Performance Systems Development | Open Energy Information  

Open Energy Info (EERE)

Type CRADA Partnering Center within NREL Electricity Resources & Building Systems Integration Partnership Year 2005 Link to project description http:www.nrel.govnewspress...

172

Performance Excellence: A Systems Approach and Tools  

Science Conference Proceedings (OSTI)

... Make value. stream flow. ... Data-driven and results-oriented, leading to: tracking systems (eg, control charts, scorecards, rolled throughput yield charts) ...

2013-07-01T23:59:59.000Z

173

A Demonstration of the System Assessment Capability (SAC) Rev. 1 Software for the Hanford Remediation Assessment Project  

SciTech Connect

The System Assessment Capability (SAC) is a suite of interrelated computer codes that provides the capability to conduct large-scale environmental assessments on the Hanford Site. Developed by Pacific Northwest National Laboratory for the Department of Energy, SAC models the fate and transport of radioactive and chemical contaminants, starting with the inventory of those contaminants in waste sites, simulating transport through the environment, and continuing on through impacts to the environment and humans. Separate modules in the SAC address inventory, release from waste forms, water flow and mass transport in the vadose zone, water flow and mass transport in the groundwater, water flow and mass transport in the Columbia River, air transport, and human and ecological impacts. The SAC supports deterministic analyses as well as stochastic analyses using a Monte Carlo approach, enabling SAC users to examine the effect of uncertainties in a number of key parameters. The initial assessment performed with the SAC software identified a number of areas where both the software and the analysis approach could be improved. Since that time the following six major software upgrades have been made: (1) An air pathway model was added to support all-pathway analyses. (2) Models for releases from glass waste forms, buried graphite reactor cores, and buried naval reactor compartments were added. (3) An air-water dual-phase model was added to more accurately track the movement of volatile contaminants in the vadose zone. (4) The ability to run analyses was extended from 1,000 years to 10,000 years or longer after site closure. (5) The vadose zone flow and transport model was upgraded to support two-dimensional or three-dimensional analyses. (6) The ecological model and human risk models were upgraded so the concentrations of contaminants in food products consumed by humans are produced by the ecological model. This report documents the functions in the SAC software and provides a number of example applications for Hanford problems. References to theory documents and user guides are provided as well as links to a number of published data sets that support running analyses of interest to Hanford cleanup efforts.

Eslinger, Paul W.; Kincaid, Charles T.; Nichols, William E.; Wurstner, Signe K.

2006-11-06T23:59:59.000Z

174

Simulating the Daylight Performance of Complex Fenestration Systems Using Bidirectional Scattering Distribution Functions within Radiance  

E-Print Network (OSTI)

software, windows, daylighting systems, shading systems,daylighting performance of complex fenestration systems (daylighting performance of complex fenestration systems (

Ward, Gregory

2011-01-01T23:59:59.000Z

175

Toward a new metric for ranking high performance computing systems.  

SciTech Connect

The High Performance Linpack (HPL), or Top 500, benchmark [1] is the most widely recognized and discussed metric for ranking high performance computing systems. However, HPL is increasingly unreliable as a true measure of system performance for a growing collection of important science and engineering applications. In this paper we describe a new high performance conjugate gradient (HPCG) benchmark. HPCG is composed of computations and data access patterns more commonly found in applications. Using HPCG we strive for a better correlation to real scientific application performance and expect to drive computer system design and implementation in directions that will better impact performance improvement.

Heroux, Michael Allen; Dongarra, Jack. [University of Tennessee, Knoxville, TN

2013-06-01T23:59:59.000Z

176

Relay Performance During Major System Disturbances  

E-Print Network (OSTI)

AbstractPower systems in the United States and abroad experienced several wide-area disturbances in the last 15 years including the largest blackout on August 14, 2003, in the Midwest

Demetrios Tziouvaras; Schweitzer Engineering Laboratories

1996-01-01T23:59:59.000Z

177

Performance evaluation of cleanroom environmental systems  

E-Print Network (OSTI)

utilize three common designs: a) Fan-tower with pressurized-design at early stage of the project, and by adopting fans andheat from fan operation. Like optimizing system design and

Xu, Tengfang

2003-01-01T23:59:59.000Z

178

Transmission System Reliability Performance Metrics Requirements  

Science Conference Proceedings (OSTI)

Transmission availability has become the significant indicator of overall transmission system operational health, due to increased utilization of the transmission system, growth of deregulated energy wholesale markets, and decreased investment in new transmission assets. Availability trends reflect the increasing dependence upon transmission assets from a technical and market perspective. Presently availability metrics lack comparability due to the non-standardization of underlying data collection method...

2003-12-12T23:59:59.000Z

179

Performance testing of small interconnected wind systems  

SciTech Connect

There is a need for performance information on small windmills intended for interconnected operation with utility distribution service. The owner or prospective buyer needs the data to estimate economic viability and service reliability, while the utility needs it to determine interconnection arrangements, maintain quality of power delivered by its line, and to answer customer inquiries. No existing testing program provides all the information needed, although the Rocky Flats test site comes close. To fill this need for Michigan, Consumers Power Company and the Michigan Electric Cooperative Association helped support a two-year program at Michigan State University involving extensive performance testing of an Enertech 1500 and a 4-kW Dakota with a Gemini inverter. The performance study suggested measurements necessary to characterize SWECS for interconnected operation. They include SWECS energy output to a-c line, miles of wind passing the rotor, var-hour metering for average var consumption, and recording watt, current, and voltmeters to assess SWECS output variability. Added instruments for waveform measurement (to assess power quality) are also needed. Typical data taken at the MSU test site are used to illustrate the techniques and preliminary data from a current project is given. Finally, conclusions about SWECS performance are listed.

Park, G.L.; Krauss, O.; Miller, J.

1984-05-01T23:59:59.000Z

180

Performance monitoring strategies for effective running of commercial refrigeration systems  

Science Conference Proceedings (OSTI)

Refrigeration systems often represent the largest electricity consumers in the supermarkets. Therefore there is a clear need for running these systems effectively. Performance monitoring uses different techniques to determine the actual system state. ... Keywords: COP, FDD, energy monitoring, performance measure, refrigeration

Martin Hrn?r; Petr Stluka

2010-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

High-performance verification of large concurrent systems  

E-Print Network (OSTI)

High-performance verification of large concurrent systems Elbie taKrpska Ph.D. Thesis VU University Systems Ph.D. Thesis Elzbieta Krepska VU University Amsterdam, 2012 #12;This research was funded by the VU. #12;VRIJE UNIVERSITEIT TOWARDS BIG BIOLOGY: HIGH-PERFORMANCE VERIFICATION OF LARGE CONCURRENT SYSTEMS

Bal, Henri E.

182

Performance Evaluation of Phasor Measurement Systems  

Science Conference Proceedings (OSTI)

After two decades of phasor network deployment, phasor measurements are now available at many major substations and power plants. The North American SynchroPhasor Initiative (NASPI), supported by both the US Department of Energy and the North American Electricity Reliability Council (NERC), provides a forum to facilitate the efforts in phasor technology in North America. Phasor applications have been explored and some are in todays utility practice. IEEE C37.118 Standard is a milestone in standardizing phasor measurements and defining performance requirements. To comply with IEEE C37.118 and to better understand the impact of phasor quality on applications, the NASPI Performance and Standards Task Team (PSTT) initiated and accomplished the development of two important documents to address characterization of PMUs and instrumentation channels, which leverage prior work (esp. in WECC) and international experience. This paper summarizes the accomplished PSTT work and presents the methods for phasor measurement evaluation.

Huang, Zhenyu; Kasztenny, Bogdan; Madani, Vahid; Martin, Kenneth E.; Meliopoulos, Sakis; Novosel, Damir; Stenbakken, Jerry

2008-07-20T23:59:59.000Z

183

Total System Performance Assessment Peer Review Panel | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Total System Performance Assessment Peer Review Panel Total System Performance Assessment Peer Review Panel Total System Performance Assessment Peer Review Panel Total System Performance Assessment (TSPA) Peer Review Panel for predicting the performance of a repository at Yucca Mountain. TSPA First Interim Report - June 20, 1997 TSPA Second Interim Report - December 12, 1997 TSPA Third Interim Report - March, 1998 TSPA Final Report - February 11, 1999 Joint NEA-IAEA International Peer Review of the Yucca Mountain Site Characterization Project's Total System Performance Assessment Supporting the Site Recommendation Process - December, 2001 More Documents & Publications Yucca Mountain Science and Engineering Report TSPA Model Development and Sensitivity Analysis of Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear

184

Total System Performance Assessment Peer Review Panel | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Total System Performance Assessment Peer Review Panel Total System Performance Assessment Peer Review Panel Total System Performance Assessment Peer Review Panel Total System Performance Assessment (TSPA) Peer Review Panel for predicting the performance of a repository at Yucca Mountain. TSPA First Interim Report - June 20, 1997 TSPA Second Interim Report - December 12, 1997 TSPA Third Interim Report - March, 1998 TSPA Final Report - February 11, 1999 Joint NEA-IAEA International Peer Review of the Yucca Mountain Site Characterization Project's Total System Performance Assessment Supporting the Site Recommendation Process - December, 2001 More Documents & Publications Yucca Mountain Science and Engineering Report TSPA Model Development and Sensitivity Analysis of Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear

185

Compiler-based Memory Optimizations for High Performance Computing Systems.  

E-Print Network (OSTI)

??Parallelism has always been the primary method to achieve higher performance. To advance the computational capabilities of state-of-the-art high performance computing systems, we continue to (more)

Kultursay, Emre

2013-01-01T23:59:59.000Z

186

Engineering design and testing of a ground water remediation system using electrolytically generated hydrogen with a palladium catalyst for dehalogenation of chlorinated hydrogen  

DOE Green Energy (OSTI)

Recent studies have shown that dissolved hydrogen causes rapid dehalogenation of chlorinated hydrocarbons in the presence of a palladium catalyst. The speed and completeness of these reactions offer advantages in designing remediation technologies for certain ground water contamination problems. However, a practical design challenge arises in the need to saturate the aqueous phase with hydrogen in an expeditious manner. To address this issue, a two-stage treatment reactor has been developed. The first stage consists of an electrolytic cell that generates hydrogen by applying a voltage potential across the influent water stream. The second stage consists of a catalyst column of palladium metal supported on alumina beads. A bench-scale reactor has been used to test this design for treating ground water contaminated with trichloroethene and other chlorinated hydrocarbons. In influent streams containing contaminant concentrations up to 4 ppm, initial results confirm that destruction efficiencies greater than 95% may be achieved with residence times short enough to allow practical implementation in specially designed flow-through treatment wells. Results from the bench-scale tests are being used to design a pilot ground water treatment system.

Ruiz, R.

1997-12-01T23:59:59.000Z

187

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Star Hot Water Systems for High Performance Homes Star Hot Water Systems for High Performance Homes 1 | Building America Program www.buildingamerica.gov Buildings Technologies Program Date: September 30, 2011 ENERGY STAR ® Hot Water Systems for High Performance Homes Welcome to the Webinar! We will start at 11:00 AM Eastern. There is no call in number. The audio will be sent through your computer speakers. All questions will be submitted via typing. Video of presenters Energy Star Hot Water Systems for High Performance Homes 2 | Building America Program www.buildingamerica.gov Energy Star Hot Water Systems for High Performance Homes 3 | Building America Program www.buildingamerica.gov Building America Program: Introduction Building Technologies Program Energy Star Hot Water Systems for High Performance Homes

188

On the performance of ejector refrigeration systems  

Science Conference Proceedings (OSTI)

The design characteristics of an ejector refrigeration system using R134a with fixed cooling capacity and fixed inlet temperatures of the external fluids at the inlet of the generator, the condenser and the evaporator are presented for different pressures ... Keywords: COP, R-134a, computer simulation, finite size thermodynamics

Abdelouahid Dahmani; Zine Aidoun; Nicolas Galanis

2010-02-01T23:59:59.000Z

189

Using Acid Number as a Leading Indicator of Refrigeration and Air Conditioning System Performance  

SciTech Connect

This report summarizes a literature review to assess the acidity characteristics of the older mineral oil and newer polyolester (POE) refrigeration systems as well as to evaluate acid measuring techniques used in other non-aqueous systems which may be applicable for refrigeration systems. Failure in the older chlorofluorocarbon/hydrochlorofluorocarbon (CFC/HCFC) / mineral oil systems was primarily due to thermal degradation of the refrigerant which resulted in the formation of hydrochloric and hydrofluoric acids. These are strong mineral acids, which can, over time, severely corrode the system metals and lead to the formation of copper plating on iron surfaces. The oil lubricants used in the older systems were relatively stable and were not prone to hydrolytic degradation due to the low solubility of water in oil. The refrigerants in the newer hydrofluorocarbon (HFC)/POE systems are much more thermally stable than the older CFC/HCFC refrigerants and mineral acid formation is negligible. However, acidity is produced in the new systems by hydrolytic decomposition of the POE lubricants with water to produce the parent organic acids and alcohols used to prepare the POE. The individual acids can therefore vary but they are generally C5 to C9 carboxylic acids. Organic acids are much weaker and far less corrosive to metals than the mineral acids from the older systems but they can, over long time periods, react with metals to form carboxylic metal salts. The salts tend to accumulate in narrow areas such as capillary tubes, particularly if residual hydrocarbon processing chemicals are present in the system, which can lead to plugging. The rate of acid production from POEs varies on a number of factors including chemical structure, moisture levels, temperature, acid concentration and metals. The hydrolysis rate of reaction can be reduced by using driers to reduce the free water concentration and by using scavenging chemicals which react with the system acids. Total acid number (TAN), which includes both mineral acids and organic acids, is therefore a useful indicator which can be used to monitor the condition of the system in order to perform remedial maintenance, when required, to prevent system failure. The critical TAN value is the acid level at which remedial action should be taken to prevent the onset of rapid acid formation which can result in system failure. The level of 0.05 mg KOH/g of oil was established for CFC/mineral oil systems based on analysis of 700 used lubricants from operating systems and failed units. There is no consensus within the refrigeration industry as to the critical TAN value for HFC/POE systems, however, the value will be higher than the CFC/mineral oil systems critical TAN value because of the much weaker organic acids produced from POE. A similar study of used POE lubricants should be performed to establish a critical TAN limit for POE systems. Titrimetric analysis per ASTM procedures is the most commonly used method to determine TAN values in lubricants in the refrigeration industry and other industries dealing with lubricating oils. For field measurements, acid test kits are often used since they provide rapid, semi-quantitative TAN results.

Dennis Cartlidge; Hans Schellhase

2003-07-31T23:59:59.000Z

190

The ATLAS Trigger System Commissioning and Performance  

E-Print Network (OSTI)

The ATLAS trigger has been used very successfully to collect collision data during 2009 and 2010 LHC running at centre of mass energies of 900 GeV, 2.36 TeV, and 7 TeV. This paper presents the ongoing work to commission the ATLAS trigger with proton collisions, including an overview of the performance of the trigger based on extensive online running. We describe how the trigger has evolved with increasing LHC luminosity and give a brief overview of plans for forthcoming LHC running.

A. Hamilton

2010-09-30T23:59:59.000Z

191

Power Electronic Thermal System Performance and Integration (Presentation)  

DOE Green Energy (OSTI)

This presentation gives an overview of the status and FY09 accomplishments for the NREL Power Electronic Thermal System Performance and Integration Project.

Bennion, K.

2009-05-01T23:59:59.000Z

192

Power Electronic Thermal System Performance and Integration (Presentation)  

DOE Green Energy (OSTI)

Thermal control is a critical factor in power electronics equipment. NREL aims to integrate and improve thermal system performance in power electronics.

Bennion, K.

2007-11-08T23:59:59.000Z

193

NREL PV System Performance and Standards Technical Progress  

DOE Green Energy (OSTI)

This paper presents a brief overview of the status and accomplishments during Fiscal Year (FY)2004 of the Photovoltaic (PV) System Performance & Standards Subtask, which is part of PV Systems Engineering Project (a joint NREL-Sandia project).

Osterwald, C. R.

2005-01-01T23:59:59.000Z

194

Dynamic Performance Validation in the Western Power System  

Science Conference Proceedings (OSTI)

Information, in all its forms, is the key to the reliable and economic performance of large power systems. This paper describes the efforts underway to meet the dynamic information needs of the western power transmission system.

Hauer, John F.; Beshir, Mo; Mittelstadt, Bill

2000-09-30T23:59:59.000Z

195

Measured Off-Grid LED Lighting System Performance  

E-Print Network (OSTI)

Market in Western Kenya: LED Alternatives and Consumerfor Emerging Off-grid White-LED Illumination Systems forReport #4 Measured Off-Grid LED Lighting System Performance

Granderson, Jessica

2009-01-01T23:59:59.000Z

196

ICDF Complex Remedial Action Work Plan  

SciTech Connect

This Remedial Action Work Plan provides the framework for operation of the Idaho Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Disposal Facility Complex (ICDF). This facility includes (a) an engineered landfill that meets the substantial requirements of DOE Order 435.1, Resource Conservation and Recovery Act Subtitle C, Idaho Hazardous Waste Management Act, and Toxic Substances Control Act polychlorinated biphenyl landfill requirements; (b) centralized receiving, inspections, administration, storage/staging, and treatment facilities necessary for CERCLA investigation-derived, remedial, and removal waste at the Idaho National Laboratory (INL) prior to final disposition in the disposal facility or shipment off-Site; and (c) an evaporation pond that has been designated as a corrective action management unit. The ICDF Complex, including a buffer zone, will cover approximately 40 acres, with a landfill disposal capacity of approximately 510,000 yd3. The ICDF Complex is designed and authorized to accept INL CERCLA-generated wastes, and includes the necessary subsystems and support facilities to provide a complete waste management system. This Remedial Action Work Plan presents the operational approach and requirements for the various components that are part of the ICDF Complex. Summaries of the remedial action work elements are presented herein, with supporting information and documents provided as appendixes to this work plan that contain specific detail about the operation of the ICDF Complex. This document presents the planned operational process based upon an evaluation of the remedial action requirements set forth in the Operable Unit 3-13 Final Record of Decision.

W. M. Heileson

2006-12-01T23:59:59.000Z

197

Machine Maintenance Integrated Performance Support System  

SciTech Connect

The objectives of this partnership project were to develop a preventive maintenance checklist program, a troubleshooting system for the Vertical Turning Center (VTC)-5, an on-line manual, and to integrate these components with a custom browser that would run on the VTC-5 machine's controller and would support future internet/intranet delivery. Kingsbury provided subject matter experts from engineering, manufacturing, and technical support. They also provided photographs, schematics, and CAD drawings, which AlliedSignal Federal Manufacturing and Technologies (ASFM and T) digitized for use in the final program. Information from The Kingsbury troubleshooting experts were interviewed regarding symptoms and root causes of system malfunctions This knowledge was captured and from it, fault trees were developed. These trees were then incorporated into the EPSS as a troubleshooting tool. The troubleshooting portion of the system presents simple questions to the machine operator in order to determine the likely cause or causes of malfunctions and then recommends systematic corrective actions. The on-line reference manual, covering operations and maintenance, provides text and illustrations to the machine operator in a traditional structure, but additionally offers the capability to search voluminous amounts of technical data and retrieve specific information on request. The maintenance portion of the EPSS includes checklists that are displayed daily, weekly, monthly, and annually, as appropriate, on the VTC-5 controller screen. The controller software is unavailable for machining parts until the machine tool operator goes through and checks off all of the checklist items. This project provided the team with a detailed understanding of the knowledge and information required to produce and support advanced machine tools. In addition, it resulted in the design and construction of a prototype VTC-5 EPSS containing all the logic and interfaces necessary to integrate operations and maintenance information from other Kingsbury machine tools.

Bohley, M.C.; Schwartz, M.E.

1998-03-11T23:59:59.000Z

198

High performance solar desiccant cooling system: performance evaluations and research recommendations  

DOE Green Energy (OSTI)

This report presents an assessment of the current status of solar desiccant cooling and makes recommendations for continued research to develop high performance systems competitive with conventional cooling systems. Solid desiccant, liquid desiccant, and hybrid systems combining desiccant dehumidifiers with vapor compressor units are considered. Currently, all desiccant systems fall somewhat short of being competitive with conventional systems. Hybrid systems appear to have the greatest potential in the short term. Solid systems are close to meeting performance goals. Development of high performance solid desiccant dehumidifiers based on parallel passage designs should be pursued. Liquid system collector/generators and efficient absorbers should receive attention. Model development is also indicated. Continued development by hybrid systems is directly tied to the above work.

Schlepp, D.R.; Schultz, K.J.

1984-09-01T23:59:59.000Z

199

Performance model assessment for multi-junction concentrating photovoltaic systems.  

DOE Green Energy (OSTI)

Four approaches to modeling multi-junction concentrating photovoltaic system performance are assessed by comparing modeled performance to measured performance. Measured weather, irradiance, and system performance data were collected on two systems over a one month period. Residual analysis is used to assess the models and to identify opportunities for model improvement. Large photovoltaic systems are typically developed as projects which supply electricity to a utility and are owned by independent power producers. Obtaining financing at favorable rates and attracting investors requires confidence in the projected energy yield from the plant. In this paper, various performance models for projecting annual energy yield from Concentrating Photovoltaic (CPV) systems are assessed by comparing measured system output to model predictions based on measured weather and irradiance data. The results are statistically analyzed to identify systematic error sources.

Stein, Joshua S.; Riley, Daniel M.; McConnell, Robert. (Amonix, Inc., Seal Beach, CA); Sahm, Aaron (University of Nevada, Las Vegas, NV); Crawford, Clark (Amonix, Inc., Seal Beach, CA); King, David L.; Cameron, Christopher P.; Foresi, James S. (Emcore, Inc., Albuquerque, NM)

2010-03-01T23:59:59.000Z

200

Fenestration System Performance Research, Testing, and Evaluation  

SciTech Connect

The US DOE was and is instrumental to NFRC's beginning and its continued success. The 2005 to 2009 funding enables NFRC to continue expanding and create new, improved ratings procedures. Research funded by the US DOE enables increased fenestration energy rating accuracy. International harmonization efforts supported by the US DOE allow the US to be the global leader in fenestration energy ratings. Many other governments are working with the NFRC to share its experience and knowledge toward development of their own national fenestration rating process similar to the NFRC's. The broad and diverse membership composition of NFRC allows anyone with a fenestration interest to come forward with an idea or improvement to the entire fenestration community for consideration. The NFRC looks forward to the next several years of growth while remaining the nation's resource for fair, accurate, and credible fenestration product energy ratings. NFRC continues to improve its rating system by considering new research, methodologies, and expanding to include new fenestration products. Currently, NFRC is working towards attachment energy ratings. Attachments are blinds, shades, awnings, and overhangs. Attachments may enable a building to achieve significant energy savings. An NFRC rating will enable fair competition, a basis for code references, and a new ENERGY STAR product category. NFRC also is developing rating methods to consider non specular glazing such as fritted glass. Commercial applications frequently use fritted glazing, but no rating method exists. NFRC is testing new software that may enable this new rating and contribute further to energy conservation. Around the world, many nations are seeking new energy conservation methods and NFRC is poised to harmonize its rating system assisting these nations to better manage and conserve energy in buildings by using NFRC rated and labeled fenestration products. As this report has shown, much more work needs to be done to continues research to improve existing ratings and develop new ones. NFRC needs to continue the work it has begun in several nations to implement the NFRC rating system that has been introduced. Many nations are eager to accept the expertise NFRC can offer to achieve energy conservation goals. NFRC looks forward to a continues partnership with the US Department of Energy to cooperatively achieve both.

Jim Benney

2009-11-30T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Technology development activities supporting tank waste remediation  

Science Conference Proceedings (OSTI)

This document summarizes work being conducted under the U.S. Department of Energy`s Office of Technology Development (EM-50) in support of the Tank Waste Remediation System (TWRS) Program. The specific work activities are organized by the following categories: safety, characterization, retrieval, barriers, pretreatment, low-level waste, and high-level waste. In most cases, the activities presented here were identified as supporting tank remediation by EM-50 integrated program or integrated demonstration lead staff and the selections were further refined by contractor staff. Data sheets were prepared from DOE-HQ guidance to the field issued in September 1993. Activities were included if a significant portion of the work described provides technology potentially needed by TWRS; consequently, not all parts of each description necessarily support tank remediation.

Bonner, W.F.; Beeman, G.H.

1994-06-01T23:59:59.000Z

202

Daylighting performance of electrochromic glazing system  

NLE Websites -- All DOE Office Websites (Extended Search)

52E 52E Lighting energy savings potential of split- pane electrochromic windows controlled for daylighting with visual comfort L.L. Fernandes Lawrence Berkeley National Laboratory E.S. Lee Lawrence Berkeley National Laboratory G. Ward Anyhere Software Windows and Envelope Materials Group Building Technology and Urban Systems Department Environmental Energy Technologies Division February 2013 Published in Energy and Buildings 61 (2013) 8-20 10.1016/j.enbuild.2012.10.057 ! DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of

203

Independent Activity Report, Savannah River Remediation - July 2010 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Remediation - July 2010 Remediation - July 2010 Independent Activity Report, Savannah River Remediation - July 2010 July 2010 Savannah River Operations Office Integrated Safety Management System Phase II Verification Review of Savannah River Remediation The U.S. Department of Energy (DOE), Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), participated in the DOE Savannah River Operations Office (DOE-SR), Office of Safety and Quality Assurance (OSQA), Technical Support Division (TSD) Integrated Safety Management System (ISMS), Phase II Verification of Savannah River Remediation (SRR). The purpose of the DOE-SR Phase II ISMS Verification was to verify that the SRR ISMS Description that was submitted to and approved by the DOE-SR Manager is being effectively implemented at the Savannah

204

INTERIOR DUCT SYSTEM DESIGN, CONSTRUCTION, AND PERFORMANCE  

DOE Green Energy (OSTI)

By removing air distribution and conditioning equipment from unconditioned spaces, homeowners stand to benefit substantially with respect to both energy savings and indoor air quality. Duct leakage introduces: Greater heating and cooling loads from air at extreme temperatures and humidity levels; Outside air and air from unconditioned spaces that may contain air borne contaminants, combustion gases, pollen, mold spores, and/or particles of building materials; and Higher whole-house infiltration/exfiltration rates. Exemplary studies conducted since 1990 have demonstrated the prevalence of duct leakage throughout the United States and measured energy savings of approximately 20% during both heating and cooling seasons from leakage reduction. These all dealt with duct leakage to and/or from unconditioned spaces. In the building science community, leakage within the conditioned space is generally presumed to eliminate the negative consequences of duct leakage with the exception of possibly creating pressure imbalances in the house which relates to higher infiltration and/or exfiltration. The practical challenges of isolating ducts and air handlers from unconditioned spaces require builders to construct an air-tight environment for the ducts. Florida Solar Energy Center researchers worked with four builders in Texas, North Carolina, and Florida who build a furred-down chase located either in a central hallway or at the edges of rooms as an architectural detail. Some comparison homes with duct systems in attics and crawl spaces were included in the test group of more than 20 homes. Test data reveals that all of the duct/AHU systems built inside the conditioned space had lower duct leakage to unconditioned spaces than their conventional counterparts; however, none of the homes was completely free of duct leakage to unconditioned spaces. Common problems included wiring and plumbing penetrations of the chase, failure to treat the chase as an air tight space, and misguided fresh air inlet design. Improvements were implemented by the Texas builder and retested in July. Results showed a 36% reduction in duct leakage, significant enough to warrant the builder adopting the new sealing procedure.

Janet E.R. Mcllvaine; David Beal; Philip Fairey

2001-10-10T23:59:59.000Z

205

A Novel Thermodynamic Performance Evaluation Method for Trigeneration System  

Science Conference Proceedings (OSTI)

To get reasonable and reliable index of performance of combined cooling, heating and power (CCHP) system, a new performance evaluation method of the system, the comprehensive efficiency, is proposed. The method is based on energy, exergy and anergy analyses. ... Keywords: trigeneration, evaluation method, energy grade factor, anergy's equivalent available coefficient, energy, exergy

Ge Bin; Zhang Junli

2011-02-01T23:59:59.000Z

206

A ten year review of performance of photovoltaic systems  

DOE Green Energy (OSTI)

This paper presents data compiled by the Photovoltaic Design Assistance Center at Sandia National Laboratories from more than eighty field tests performed at over thirty-five photovoltaic systems in the United States during the last ten years. The recorded performance histories, failure rates, and degradation of post-Block IV modules and balance-of-system (BOS) components are described in detail.

Rosenthal, A.L.; Durand, S.J. [Southwest Technology Development Inst., Las Cruces, NM (United States); Thomas, M.G. [Sandia National Labs., Albuquerque, NM (United States)

1993-06-01T23:59:59.000Z

207

Performance of Integrated Systems of Automated Roller Shade Systems and Daylight Responsive Dimming Systems  

Science Conference Proceedings (OSTI)

Daylight responsive dimming systems have been used in few buildings to date because they require improvements to improve reliability. The key underlying factor contributing to poor performance is the variability of the ratio of the photosensor signal to daylight workplane illuminance in accordance with sun position, sky condition, and fenestration condition. Therefore, this paper describes the integrated systems between automated roller shade systems and daylight responsive dimming systems with an improved closed-loop proportional control algorithm, and the relative performance of the integrated systems and single systems. The concept of the improved closed-loop proportional control algorithm for the integrated systems is to predict the varying correlation of photosensor signal to daylight workplane illuminance according to roller shade height and sky conditions for improvement of the system accuracy. In this study, the performance of the integrated systems with two improved closed-loop proportional control algorithms was compared with that of the current (modified) closed-loop proportional control algorithm. In the results, the average maintenance percentage and the average discrepancies of the target illuminance, as well as the average time under 90percent of target illuminance for the integrated systems significantly improved in comparison with the current closed-loop proportional control algorithm for daylight responsive dimming systems as a single system.

Park, Byoung-Chul; Choi, An-Seop; Jeong, Jae-Weon; Lee, Eleanor S.

2010-07-08T23:59:59.000Z

208

Towards semantic performance measurement systems for supply chain management  

Science Conference Proceedings (OSTI)

The literature on Supply Chain Management (SCM) supports the integration of key business processes, including the performance management process, in order to increase the performance within and between the organisations. Nevertheless, the lack of proper ... Keywords: SCOR, business process management, ontology engineering, performance measurement systems, supply chain management

Artturi Nurmi; Thierry Moyaux; Valrie Botta-Genoulaz

2010-10-01T23:59:59.000Z

209

U-drumwave: an interactive performance system for drumming  

Science Conference Proceedings (OSTI)

In this paper, we share our experience of applying the modern multimedia technologies to the traditional performing art in a drumming performance project, U-Drumwave. By deploying an interactive system on the drumming stage, the audience will see augmented ... Keywords: drumming performance, interactive art, spatial AR

Yin-Tzu Lin; Shuen-Huei Guan; Yuan-Chang Yao; Wen-Huang Cheng; Ja-Ling Wu

2012-01-01T23:59:59.000Z

210

The effect of load parameters on system thermal performance  

SciTech Connect

The effects of load size, load profile and hot water set temperature on system thermal performance are investigated in order to determine the relative importance of these design parameters in sizing a solar water heating system. The WATSUN IV computer program was used to introduce various load sizes, load profiles and set temperatures to a base model. The results indicate that variations in load size have a significant effect on the thermal performance of the system. However, variations in load profile and hot water set temperature seem to have no significant effect on system performance.

Vakili, M.

1984-02-01T23:59:59.000Z

211

Spray energy release (SER) approach to analyzing spray system performance  

SciTech Connect

Spray-cooling systems for thermal power plants are more controllable, cheaper to construct and operate, and equal in thermal performance when compared with other cooling systems. In order to achieve a reliable method for predicting the performance of an open atmosphere spray cooling system, a mathematical model is developed using the energy release of the spray (SER), knowledge of the spray distribution, and a spray mixing parameter. Empirical data for a single spray is obtained and used to predict the performance of the whole spray field. Both a small and a large spray system were used to check the validity of the model. Good agreement was found in both cases. (LCL)

Chen, K.H.; Trezek, G.J.

1976-01-01T23:59:59.000Z

212

DOE Awards Contract for Environmental Remediation Services at California  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Environmental Remediation Services at Environmental Remediation Services at California Santa Susana Field Laboratory DOE Awards Contract for Environmental Remediation Services at California Santa Susana Field Laboratory September 27, 2012 - 12:00pm Addthis Media Contact Bill Taylor bill.taylor@srs.gov 803-952-8564 Cincinnati - The Department of Energy (DOE) today awarded a task order (contract) to CDM, A Joint Venture, of Fairfax, Virginia, to provide environmental remediation services for the Energy Technology Engineering Center at the Santa Susana Field Laboratory, Canoga Park, California. The cost-plus incentive fee task order has a 36-month performance period and a value of $11.3 million. CDM will continue to assist DOE in chemical sampling, the preparation of a chemical data gap analysis and preparing a soils remediation action

213

EA-1331: Remediation of Subsurface and Groundwater Contamination at the  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

331: Remediation of Subsurface and Groundwater Contamination at 331: Remediation of Subsurface and Groundwater Contamination at the Rock Springs in situ Oil Shale Retort Site, Sweetwater County, Wyoming EA-1331: Remediation of Subsurface and Groundwater Contamination at the Rock Springs in situ Oil Shale Retort Site, Sweetwater County, Wyoming SUMMARY This EA evaluates the environmental impacts for the proposal for the Rock Springs In-Situ Oil Shale Retort Test Site remediation that would be performed at the Rock Springs site in Sweetwater County, Wyoming. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD July 31, 2000 EA-1331: Finding of No Significant Impact Remediation of Subsurface and Groundwater Contamination at the Rock Springs in situ Oil Shale Retort Site July 31, 2000 EA-1331: Final Environmental Assessment

214

CENTRAL PLATEAU REMEDIATION  

Science Conference Proceedings (OSTI)

A systematic approach to closure planning is being implemented at the Hanford Site's Central Plateau to help achieve the goal of closure by the year 2035. The overall objective of Central Plateau remediation is to protect human health and the environment from the significant quantity of contaminated material that resulted from decades of plutonium production in support of the nation's defense. This goal will be achieved either by removing contaminants or placing the residual contaminated materials in a secure configuration that minimizes further migration to the groundwater and reduces the potential for inadvertent intrusion into contaminated sites. The approach to Central Plateau cleanup used three key concepts--closure zones, closure elements, and closure process steps--to create an organized picture of actions required to complete remediation. These actions were merged with logic ties, constraints, and required resources to produce an integrated time-phased schedule and cost profile for Central Plateau closure. Programmatic risks associated with implementation of Central Plateau closure were identified and analyzed. Actions to mitigate the most significant risks are underway while high priority remediation projects continue to make progress.

ROMINE, L.D.

2006-02-01T23:59:59.000Z

215

New Pump and Treat Facility Remedial Action Work Plan for Test Area North (TAN) Final Groundwater Remediation, Operable Unit 1-07B  

SciTech Connect

This operations and maintenance plan supports the New Pump and Treat Facility (NPTF) remedial action work plan and identifies the approach and requirements for the operations and maintenance activities specific to the final medical zone treatment remedy. The NPTF provides the treatment system necessary to remediate the medical zone portion of the OU 1-07B contaminated groundwater plume. Design and construction of the New Pump and Treat Facility is addressed in the NPTF remedial action work plan. The scope of this operation and maintenance plan includes facility operations and maintenance, remedy five-year reviews, and the final operations and maintenance report for the NPTF.

L. O. Nelson

2003-09-01T23:59:59.000Z

216

A performance data network for solar process heat systems  

DOE Green Energy (OSTI)

A solar process heat (SPH) data network has been developed to access remote-site performance data from operational solar heat systems. Each SPH system in the data network is outfitted with monitoring equipment and a datalogger. The datalogger is accessed via modem from the data network computer at the National Renewable Energy Laboratory (NREL). The dataloggers collect both ten-minute and hourly data and download it to the data network every 24-hours for archiving, processing, and plotting. The system data collected includes energy delivered (fluid temperatures and flow rates) and site meteorological conditions, such as solar insolation and ambient temperature. The SPH performance data network was created for collecting performance data from SPH systems that are serving in industrial applications or from systems using technologies that show promise for industrial applications. The network will be used to identify areas of SPH technology needing further development, to correlate computer models with actual performance, and to improve the credibility of SPH technology. The SPH data network also provides a centralized bank of user-friendly performance data that will give prospective SPH users an indication of how actual systems perform. There are currently three systems being monitored and archived under the SPH data network: two are parabolic trough systems and the third is a flat-plate system. The two trough systems both heat water for prisons; the hot water is used for personal hygiene, kitchen operations, and laundry. The flat plate system heats water for meat processing at a slaughter house. We plan to connect another parabolic trough system to the network during the first months of 1996. We continue to look for good examples of systems using other types of collector technologies and systems serving new applications (such as absorption chilling) to include in the SPH performance data network.

Barker, G.; Hale, M.J.

1996-03-01T23:59:59.000Z

217

Tank Waste Remediation System fiscal year 1996 multi-year program plan WBS 1.1. Revision 1, Volume 1  

Science Conference Proceedings (OSTI)

The 1995 Hanford Mission Plan specifically addresses the tank waste issue and clarifies the link with other initiatives, such as improving management practices and the Hanford Site Waste Minimization and Pollution Prevention Awareness Program Plan (DOE/RL-91-31). This document captures the results of decision making regarding the application of systems engineering at the Hanford Site, external involvement policy, and site end-state goals. Section 3.5 of the Hanford Mission Plan on Decisions and Directives provides an integrating discussion of the actions of the National Environmental Policy Act (NEPA), and DOE policy, guidance, and decisions associated with binding agreements such as the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement). Two significant components of the Hanford Mission Plan 1994 planning basis are (1) the decisions regarding the disposition of onsite material inventory, and the key programs and interfaces to accomplish this; and (2) the Program Interface Issues section, which identified issues that stretch across program boundaries.

NONE

1995-09-01T23:59:59.000Z

218

Commissioning and performance of the BNL EBIS LLRF system  

Science Conference Proceedings (OSTI)

The Electron Beam Ion Source (EBIS) LLRF system utilizes the RHIC LLRF upgrade platform to achieve the required functionality and flexibility. The LLRF system provides drive to the EBIS high-level RF system, employs I-Q feedback to provide required amplitude and phase stability, and implements a cavity resonance control scheme. The embedded system provides the interface to the existing Controls System, making remote system control and diagnostics possible. The flexibility of the system allows us to reuse VHDL codes, develop new functionalities, improve current designs, and implement new features with relative ease. In this paper, we will discuss the commissioning process, issues encountered, and performance of the system.

Yuan, S.; Smith, K.S.; Hayes, T.; Severino, F.; Harvey, M.; Narayan, G.; Zaltsman, A.

2011-03-28T23:59:59.000Z

219

Uranium Mill Tailings Remedial Action Project 1994 environmental report  

Science Conference Proceedings (OSTI)

This annual report documents the Uranium Mill Tailings Remedial Action (UMTRA) Project environmental monitoring and protection program. The UMTRA Project routinely monitors radiation, radioactive residual materials, and hazardous constituents at associated former uranium tailings processing sites and disposal sites. At the end of 1994, surface remedial action was complete at 14 of the 24 designated UMTRA Project processing sites: Canonsburg, Pennsylvania; Durango, Colorado; Grand Junction, Colorado; Green River Utah, Lakeview, Oregon; Lowman, Idaho; Mexican Hat, Utah; Riverton, Wyoming; Salt Lake City, Utah; Falls City, Texas; Shiprock, New Mexico; Spook, Wyoming, Tuba City, Arizona; and Monument Valley, Arizona. Surface remedial action was ongoing at 5 sites: Ambrosia Lake, New Mexico; Naturita, Colorado; Gunnison, Colorado; and Rifle, Colorado (2 sites). Remedial action has not begun at the 5 remaining UMTRA Project sites that are in the planning stage. Belfield and Bowman, North Dakota; Maybell, Colorado; and Slick Rock, Colorado (2 sites). The ground water compliance phase of the UMTRA Project started in 1991. Because the UMTRA Project sites are.` different stages of remedial action, the breadth of the UMTRA environmental protection program differs from site to site. In general, sites actively undergoing surface remedial action have the most comprehensive environmental programs for sampling media. At sites where surface remedial action is complete and at sites where remedial action has not yet begun, the environmental program consists primarily of surface water and ground water monitoring to support site characterization, baseline risk assessments, or disposal site performance assessments.

NONE

1995-08-01T23:59:59.000Z

220

Process for predicting structural performance of mechanical systems  

DOE Patents (OSTI)

A process for predicting the structural performance of a mechanical system represents the mechanical system by a plurality of surface elements. The surface elements are grouped according to their location in the volume occupied by the mechanical system so that contacts between surface elements can be efficiently located. The process is well suited for efficient practice on multiprocessor computers.

Gardner, David R. (Albuquerque, NM); Hendrickson, Bruce A. (Albuquerque, NM); Plimpton, Steven J. (Albuquerque, NM); Attaway, Stephen W. (Cedar Crest, NM); Heinstein, Martin W. (Albuquerque, NM); Vaughan, Courtenay T. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Long-Term Performance of the SERF PV Systems  

SciTech Connect

This paper provides the changes in performance ratings of two photovoltaic (PV) systems located on the roof of the Solar Energy Research Facility (SERF) building at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. For the period of May 1994 to April 2002, the performance rating of the two PV systems decreased at the rate of 1% per year. Most of the changes in performance rating are attributed to changes in the performance of the PV arrays. But about a fifth of the observed changes were from the inverter not tracking the peak-power as effectively as the PV arrays aged.

Marion, B.; Adelstein, J.

2003-05-01T23:59:59.000Z

222

System Advisor Model: Flat Plate Photovoltaic Performance Modeling Validation Report  

SciTech Connect

The System Advisor Model (SAM) is a free software tool that performs detailed analysis of both system performance and system financing for a variety of renewable energy technologies. This report provides detailed validation of the SAM flat plate photovoltaic performance model by comparing SAM-modeled PV system generation data to actual measured production data for nine PV systems ranging from 75 kW to greater than 25 MW in size. The results show strong agreement between SAM predictions and field data, with annualized prediction error below 3% for all fixed tilt cases and below 8% for all one axis tracked cases. The analysis concludes that snow cover and system outages are the primary sources of disagreement, and other deviations resulting from seasonal biases in the irradiation models and one axis tracking issues are discussed in detail.

Freeman, J.; Whitmore, J.; Kaffine, L.; Blair, N.; Dobos, A. P.

2013-12-01T23:59:59.000Z

223

Interim performance criteria for photovoltaic energy systems. [Glossary included  

DOE Green Energy (OSTI)

This document is a response to the Photovoltaic Research, Development, and Demonstration Act of 1978 (P.L. 95-590) which required the generation of performance criteria for photovoltaic energy systems. Since the document is evolutionary and will be updated, the term interim is used. More than 50 experts in the photovoltaic field have contributed in the writing and review of the 179 performance criteria listed in this document. The performance criteria address characteristics of present-day photovoltaic systems that are of interest to manufacturers, government agencies, purchasers, and all others interested in various aspects of photovoltaic system performance and safety. The performance criteria apply to the system as a whole and to its possible subsystems: array, power conditioning, monitor and control, storage, cabling, and power distribution. They are further categorized according to the following performance attributes: electrical, thermal, mechanical/structural, safety, durability/reliability, installation/operation/maintenance, and building/site. Each criterion contains a statement of expected performance (nonprescriptive), a method of evaluation, and a commentary with further information or justification. Over 50 references for background information are also given. A glossary with definitions relevant to photovoltaic systems and a section on test methods are presented in the appendices. Twenty test methods are included to measure performance characteristics of the subsystem elements. These test methods and other parts of the document will be expanded or revised as future experience and needs dictate.

DeBlasio, R.; Forman, S.; Hogan, S.; Nuss, G.; Post, H.; Ross, R.; Schafft, H.

1980-12-01T23:59:59.000Z

224

Performance Technology for Tera-Class Parallel Computers: Evolution of the TAU Performance System  

Science Conference Proceedings (OSTI)

In this project, we proposed to create new technology for performance observation and analysis of large-scale tera-class parallel computer systems and applications in this project.

Allen D. Malony

2005-06-21T23:59:59.000Z

225

CENTRAL PLATEAU REMEDIATION OPTIMIZATION STUDY  

SciTech Connect

THE CENTRAL PLATEAU REMEDIATION OPTIMIZATION STUDY WAS CONDUCTED TO DEVELOP AN OPTIMAL SEQUENCE OF REMEDIATION ACTIVITIES IMPLEMENTING THE CERCLA DECISION ON THE CENTRAL PLATEAU. THE STUDY DEFINES A SEQUENCE OF ACTIVITIES THAT RESULT IN AN EFFECTIVE USE OF RESOURCES FROM A STRATEGIC PERSPECTIVE WHEN CONSIDERING EQUIPMENT PROCUREMENT AND STAGING, WORKFORCE MOBILIZATION/DEMOBILIZATION, WORKFORCE LEVELING, WORKFORCE SKILL-MIX, AND OTHER REMEDIATION/DISPOSITION PROJECT EXECUTION PARAMETERS.

BERGMAN TB; STEFANSKI LD; SEELEY PN; ZINSLI LC; CUSACK LJ

2012-09-19T23:59:59.000Z

226

Analysis of the seasonal performance of hybrid desiccant cooling systems  

DOE Green Energy (OSTI)

A simulation model for the liquid desiccant component of a hybrid system was developed. An analysis of experimental test data was conducted. The liquid desiccant component was examined and the sensitivity of its seasonal performance to changes in principal component variables was identified. Seasonal simulations were performed on different operation modes of a hybrid liquid desiccant cooling system. The results were analyzed in terms of estimated operational costs and compared to the equivalent cost estimation of a conventional cooling system. The study showed that the investigated liquid desiccant configuration usually will not lower the costs of operation. A suggestion of an improved system is made.

Sick, F.

1987-04-01T23:59:59.000Z

227

Commissioning and Performance Diagnostics for HVAC Control Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Commissioning and Performance Diagnostics for HVAC Control Systems Commissioning and Performance Diagnostics for HVAC Control Systems Speaker(s): Ashish Singhal Date: December 20, 2006 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Philip Haves The presentation will focus on practical aspects of commissioning control loops in commercial HVAC systems and evaluating their routine performance. Simple and theoretically sound methods for diagnosing control performance will be presented that detect serious performance issues associated with control loops in modern buildings. The discussion will center on a new control loop commissioning tool that helps field personnel to quickly test, tune and troubleshoot control loops. In addition to the active tests for commissioning control loops, a suite of diagnostic algorithms are used in a

228

Benchmarking and Performance Based Rating System for Commercial Buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

Benchmarking and Performance Based Rating System for Commercial Buildings Benchmarking and Performance Based Rating System for Commercial Buildings in India Speaker(s): Saket Sarraf Date: May 4, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Girish Ghatikar The Indian building sector has witnessed huge surge in interest in energy performance in the last decade. The 'intention' based codes like the national Energy Conservation Building Code (ECBC) and green building rating systems such as Leadership in Energy and Environment Design (LEED-India) and Green Rating for Integrated Habitat Assessment (GRIHA) have been the prime mechanisms to design and assess energy efficient buildings. However, they do not rate the 'achieved' energy performance of buildings over time or reward their performance through a continuous evaluation process.

229

Contractor Performance Assessment Reporting System (CPARS) | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Contractor Performance Assessment Reporting System (CPARS) Contractor Performance Assessment Reporting System (CPARS) Contractor Performance Assessment Reporting System (CPARS) The CPAR assesses a contractor's performance, both positive and negative, and provides a record on a given contract during a specified period of time. Each assessment must be based on objective data (or measurable, subjective data when objective data is not available) supportable by program and contract management data. The CPARS process is designed with a series of checks-and-balances to facilitate the objective and consistent evaluation of contractor performance. Both Government and contractor perspectives are captured on the CPAR form. The opportunity to review/comment on the CPAR by the designated Government and contractor personnel together makes a complete CPAR.

230

Analysis of Photovoltaic System Energy Performance Evaluation Method  

SciTech Connect

Documentation of the energy yield of a large photovoltaic (PV) system over a substantial period can be useful to measure a performance guarantee, as an assessment of the health of the system, for verification of a performance model to then be applied to a new system, or for a variety of other purposes. Although the measurement of this performance metric might appear to be straight forward, there are a number of subtleties associated with variations in weather and imperfect data collection that complicate the determination and data analysis. A performance assessment is most valuable when it is completed with a very low uncertainty and when the subtleties are systematically addressed, yet currently no standard exists to guide this process. This report summarizes a draft methodology for an Energy Performance Evaluation Method, the philosophy behind the draft method, and the lessons that were learned by implementing the method.

Kurtz, S.; Newmiller, J.; Kimber, A.; Flottemesch, R.; Riley, E.; Dierauf, T.; McKee, J.; Krishnani, P.

2013-11-01T23:59:59.000Z

231

Commissioning and Performance Diagnostics for HVAC Control Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Commissioning and Performance Diagnostics for HVAC Control Systems Speaker(s): Ashish Singhal Date: December 20, 2006 - 12:00pm Location: 90-3122 Seminar HostPoint of Contact:...

232

High Performance Computing Systems for Autonomous Spaceborne Missions  

Science Conference Proceedings (OSTI)

Future-generation space missions across the solar system to the planets, moons, asteroids, and comets may someday incorporate supercomputers both to expand the range of missions being conducted and to significantly reduce their cost. By performing science ...

Thomas Sterling; Daniel S. Katz; Larry Bergman

2001-08-01T23:59:59.000Z

233

Computer system performance problem detection using time series models  

Science Conference Proceedings (OSTI)

Computer systems require monitoring to detect performance anomalies such as runaway processes, but problem detection and diagnosis is a complex task requiring skilled attention. Although human attention was never ideal for this task, as networks of computers ...

Peter Hoogenboom; Jay Lepreau

1993-06-01T23:59:59.000Z

234

Guidelines for reporting parabolic trough solar electric system performance  

DOE Green Energy (OSTI)

The purpose of this activity is to develop a generic methodology which can be used to track and compare the performance of parabolic trough power plants. The approach needs to be general enough to work for all existing and future parabolic trough plant designs, provide meaningful comparisons of year to year performance, and allow for comparisons between dissimilar plant designs. The approach presented here uses the net annual system efficiency as the primary metric for evaluating the performance of parabolic trough power plants. However, given the complex nature of large parabolic trough plants, the net annual system efficiency by itself does not adequately characterize the performance of the plant. The approach taken here is to define a number of additional performance metrics which enable a more comprehensive understanding of overall plant performance.

Price, H.W.

1997-06-01T23:59:59.000Z

235

Design of an Enterprise Dynamic Performance Simulation and Analysis System  

Science Conference Proceedings (OSTI)

Many problems in enterprise running faced by managers can be resolved by simulation of the corresponding system dynamics model. It is often desirable to forecasting enterprise running in the next period. And managers hope to find the reason quickly if ... Keywords: dynamic performance, simulation, sensitivity, diagnose, performance optimization

Zheng Li; Yueting Chai; Yi Liu

2011-04-01T23:59:59.000Z

236

Building America System Performance Test Practices: Part 1 -- Photovoltaic Systems  

DOE Green Energy (OSTI)

The report outlines the short-term field testing used by Building America staff and includes a report on the results of an example test of a PV system with battery storage on a home in Tucson, Arizona. This report is not intended as a general recommended test procedure for wide distribution. It is intended to document current practices in Building America to inform program stakeholders and stimulate further discussion. Building America staff intend to apply this procedure until relevant standards for testing PV modules are completed.

Barker, G.; Norton, P.

2003-05-01T23:59:59.000Z

237

REMEDIAL ACTION PLAN  

E-Print Network (OSTI)

designated site consists of the 111-acre tailings pile, the mill yard, and piles of demolition rubble awaiting burial. The site contains 2.659 million cubic yards of tailings including 277,000 cubic yards of contaminated material in the mill yard, ore storage area, and Ann Lee Mine area; 151,000 cubic yards in the protore storage and leach pad areas; and 664,000 cubic yards of windblown contaminated soil, including excess soil that would result from excavation. Remedial action The remedial action will start with the excavation of windblown contaminated material and placement around the west, south, and east sides of the pile to buttress the slopes for increased stability. Most of the demolition rubble will be placed in the southern part of the pile and be covered with tailings. The northern part of the tailings pile (one million cubic yards) will then be excavated and placed on the south part of the pile to reduce the size of the disposal cell footprint. Demolition rubble that

Inactive Uranium; Mill Tailings Site; Uranium Mill Tremedial

1990-01-01T23:59:59.000Z

238

Frontiers of Performance Analysis on Leadership-Class Systems  

SciTech Connect

The number of cores in high-end systems for scientific computing are employing is increasing rapidly. As a result, there is an pressing need for tools that can measure, model, and diagnose performance problems in highly-parallel runs. We describe two tools that employ complementary approaches for analysis at scale and we illustrate their use on DOE leadership-class systems.

Fowler, R J; Adhianto, L; de Supinski, B R; Fagan, M; Gamblin, T; Krentel, M; Mellor-Crummey, J; Schulz, M; Tallent, N

2009-06-15T23:59:59.000Z

239

High Performance Commercial Building Systems Francis Rubinstein, LBNL  

E-Print Network (OSTI)

- Lighting, Envelope and Daylighting Project 2.1 - Lighting Controls Task 2.1.3 ­ Advanced Sensor Task 2High Performance Commercial Building Systems Francis Rubinstein, LBNL Pete Pettler, Vistron LLC fabrication of two key components of the IBECS (Integrated Building Environmental Communications System

240

Polycrystalline thin-film module and system performance  

DOE Green Energy (OSTI)

The Module and System Performance and Engineering Project at the National Renewable Energy Laboratory (NREL) conducts in-situ technical evaluations of photovoltaic (PV) modules and systems (arrays). These evaluations on module/array performance and stability are conducted at the NREL Photovoltaic Outdoor Test Facility (OTF) in Golden, CO. The modules and arrays are located at 39.7{degree}N latitude, 105.2{degree}W longitude, and at 1,782 meters elevation. Currently, two polycrystalline thin-film technologies are the focus of the research presented here. The module structures are copper indium diselenide (CIS) from Siemens Solar Industries and cadmium telluride (CdTe) from Solar Cells, Inc. The research team is attempting to correlate individual module performance with array performance for these two polycrystalline thin-film technologies. This is done by looking at module and array performance over time. Also, temperature coefficients are determined at both the module and array level. Results are discussed.

Strand, T.; Kroposki, B.; Hansen, R.; Mrig, L.

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Iowa Land Recycling and Environmental Remediation Standards Act (Iowa) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Iowa Land Recycling and Environmental Remediation Standards Act Iowa Land Recycling and Environmental Remediation Standards Act (Iowa) Iowa Land Recycling and Environmental Remediation Standards Act (Iowa) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Iowa Program Type Environmental Regulations Provider Iowa Department of Natural Resources

242

Sulfate Reduction in Groundwater: Characterization and Applications for Remediation  

Science Conference Proceedings (OSTI)

Sulfate is ubiquitous in groundwater, with both natural and anthropogenic sources. Sulfate reduction reactions play a significant role in mediating redox conditions and biogeochemical processes for subsurface systems. They also serve as the basis for innovative in-situ methods for groundwater remediation. An overview of sulfate reduction in subsurface environments is provided, with a specific focus on implications for groundwater remediation. A case study presenting the results of a pilot-scale ethanol injection test illustrates the advantages and difficulties associated with the use of electron-donor amendments for sulfate remediation.

Miao, Z.; Brusseau, M. L.; Carroll, Kenneth C.; Carreon-Diazconti, C.; Johnson, B.

2012-06-01T23:59:59.000Z

243

The NetLogger Methodology for High Performance Distributed Systems Performance Analysis  

SciTech Connect

The authors describe a methodology that enables the real-time diagnosis of performance problems in complex high-performance distributed systems. The methodology includes tools for generating precision event logs that can be used to provide detailed end-to-end application and system level monitoring; a Java agent-based system for managing the large amount of logging data; and tools for visualizing the log data and real-time state of the distributed system. The authors developed these tools for analyzing a high-performance distributed system centered around the transfer of large amounts of data at high speeds from a distributed storage server to a remote visualization client. However, this methodology should be generally applicable to any distributed system. This methodology, called NetLogger, has proven invaluable for diagnosing problems in networks and in distributed systems code. This approach is novel in that it combines network, host, and application-level monitoring, providing a complete view of the entire system.

Tierney, Brian; Johnston, William; Crowley, Brian; Hoo, Gary; Brooks, Chris; Gunter, Dan

1999-12-23T23:59:59.000Z

244

Performance of thermal distribution systems in large commercial buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance of thermal distribution systems in large commercial buildings Performance of thermal distribution systems in large commercial buildings Title Performance of thermal distribution systems in large commercial buildings Publication Type Journal Article LBNL Report Number LBNL-44331 Year of Publication 2002 Authors Xu, Tengfang T., François Rémi Carrié, Darryl J. Dickerhoff, William J. Fisk, Jennifer A. McWilliams, Duo Wang, and Mark P. Modera Journal Energy and Buildings Volume 34 Start Page Chapter Pagination 215-226 Abstract This paper presents major findings of a field study on the performance of five thermal distribution systems in four large commercial buildings. The five systems studied are typical single-duct or dual-duct constant air volume (CAV) systems and variable air volume (VAV) systems, each of which serves an office building or a retail building with floor area over 2,000 m2. The air leakage from ducts are reported in terms of effective leakage area (ELA) at 25 Pa reference pressure, the ASHRAE-defined duct leakage class, and air leakage ratios. The specific ELAs ranged from 0.7 to 12.9 cm2 per m2 of duct surface area, and from 0.1 to 7.7 cm2 per square meter of floor area served. The leakage classes ranged from 34 to 757 for the five systems and systems sections tested. The air leakage ratios are estimated to be up to one-third of the fan- supplied airflow in the constant-air-volume systems. The specific ELAs and leakage classes indicate that air leakage in large commercial duct systems varies significantly from system to system, and from system section to system section even within the same thermal distribution system. The duct systems measured are much leakier than the ductwork specified as "unsealed ducts" by ASHRAE. Energy losses from supply ducts by conduction (including convection and radiation) are found to be significant, on the scale similar to the losses induced by air leakage in the duct systems. The energy losses induced by leakage and conduction suggest that there are significant energy-savings potentials from duct-sealing and insulation practice in large commercial buildings

245

Performance of Kepler GTX Titan GPUs and Xeon Phi System  

E-Print Network (OSTI)

NVIDIA's new architecture, Kepler improves GPU's performance significantly with the new streaming multiprocessor SMX. Along with the performance, NVIDIA has also introduced many new technologies such as direct parallelism, hyper-Q and GPU Direct with RDMA. Apart from other usual GPUs, NVIDIA also released another Kepler 'GeForce' GPU named GTX Titan. GeForce GTX Titan is not only good for gaming but also good for high performance computing with CUDA. Nevertheless, it is remarkably cheaper than Kepler Tesla GPUs. We investigate the performance of GTX Titan and find out how to optimize a CUDA code appropriately for it. Meanwhile, Intel has launched its new many integrated core (MIC) system, Xeon Phi. A Xeon Phi coprocessor could provide similar performance with NVIDIA Kepler GPUs theoretically but, in reality, it turns out that its performance is significantly inferior to GTX Titan.

Hwancheol Jeong; Weonjong Lee; Jeonghwan Pak; Kwang-jong Choi; Sang-Hyun Park; Jun-sik Yoo; Joo Hwan Kim; Joungjin Lee; Young Woo Lee

2013-11-04T23:59:59.000Z

246

Use of energy management systems for performance monitoring of industrial  

NLE Websites -- All DOE Office Websites (Extended Search)

Use of energy management systems for performance monitoring of industrial Use of energy management systems for performance monitoring of industrial load-shaping measures Title Use of energy management systems for performance monitoring of industrial load-shaping measures Publication Type Journal Article Year of Publication 1988 Authors Akbari, Hashem, Mashuri Warren, Anibal De T. Almeida, Deborah J. Connell, and Jeffrey P. Harris Journal Energy Volume 13 Pagination 253-263 Abstract We have studied the use of industrial energy management and control systems (EMCSs) for monitoring the performance of electric load-shaping measures in three of California's most electricity-intensive and rapidly growing industrial sectors: food, plastics, and computing equipment and electronics. In this paper, we summarize current load-shaping strategies, report on the current use of EMCSs in selected industries, and recommend ways for electric utility companies to verify the potential of EMCSs for performance monitoring. We conclude that EMCSs can be used to collect and store data for evaluating industrial load shaping. Some sophisticated EMCSs are currently being used for this purpose, mostly in larger electronics firms. Most EMCSs now available need to be customized to monitor a particular facility. We also conclude that electric utility companies can encourage the use of EMCSs for performance monitoring by helping to educate their industrial customers about EMCSs, establishing protocols to standardize communication between EMCSs, and testing EMCSs with data-logging functions at demonstration sites.

247

Residential Forced Air System Cabinet Leakage and Blower Performance  

NLE Websites -- All DOE Office Websites (Extended Search)

Residential Forced Air System Cabinet Leakage and Blower Performance Residential Forced Air System Cabinet Leakage and Blower Performance Title Residential Forced Air System Cabinet Leakage and Blower Performance Publication Type Report LBNL Report Number LBNL-3383E Year of Publication 2010 Authors Walker, Iain S., Darryl J. Dickerhoff, and William W. Delp Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords air flow measurement, air leakage, blower power measurement, blowers, energy performance of buildings group, forced air systems, furnaces, indoor environment department, other, public interest energy research (pier) program, residential hvac Abstract This project evaluated the air leakage and electric power consumption of Residential HVAC components, with a particular focus on air leakage of furnace cabinets. Laboratory testing of HVAC components indicated that air leakage can be significant and highly variable from unit to unit - indicating the need for a standard test method and specifying maximum allowable air leakage in California State energy codes. To further this effort, this project provided technical assistance for the development of a national standard for Residential HVAC equipment air leakage. This standard is being developed by ASHRAE and is called "ASHRAE Standard 193P - Method of test for Determining the Air Leakage Rate of HVAC Equipment". The final part of this project evaluated techniques for measurement of furnace blower power consumption. A draft test procedure for power consumption was developed in collaboration with the Canadian General Standards Board: CSA 823 "Performance Standard for air handlers in residential space conditioning systems".

248

Impact of desiccant degradation on desiccant cooling system performance  

Science Conference Proceedings (OSTI)

The performance of open-cycle desiccant cooling systems depends on several factors, some of which can change beyond manufacturers' specifications. For example, the desiccant sorption process may degrade with time on exposure to airborne contaminants and thermal cycling. Desiccant degradation can reduce the performance of a dehumidifier and thus the performance of desiccant cooling systems. Using computer simulations and recent experimental data on silica gel, the impact of degradation was evaluated. Hypothetical degradations of desiccants with Type 1 moderate isotherms were also simulated. Depending on the degree and type of desiccant degradation, the decrease in thermal coefficient of performance (COP) and cooling capacity of the system was 10% to 35%. The 35% loss in system performance occurs when desiccant degradation is considered worst case. The simulations showed that the COP, and to a lesser degree the cooling capacity of these degraded systems, could be improved by increasing the rotational speed of the dehumidifier. It is shown that easy engineering solutions might be available for some types of degradations. 9 refs., 6 figs., 1 tab.

Pesaran, A.A.; Penney, T.R.

1990-09-01T23:59:59.000Z

249

LARGO hot water system thermal performance test report  

DOE Green Energy (OSTI)

The thermal performance tests and results on the LARGO Solar Hot Water System under natural environmental conditions are presented. Some objectives of these evaluations are to determine the amount of energy collected, the amount of energy delivered to the household as contributed by solar power supplied to operate the system and auxiliary power to maintain tank temperature at proper level, overall system efficiency and to determine temperature distribution within the tank. The tests and evaluation were performed at the Marshall Space Flight Center solar test facility. The Solar Hot Water system is termed a ''Dump-type'' because of the draining system for freeze protection. The solar collector is a single glazed flat plate. An 82-gallon domestic water heater is provided as the energy storage vessel. Water is circulated through the collector and water heater by a 5.3 GPM capacity pump, and control of the pump motor is achieved by a differential temperature controller.

Not Available

1978-11-01T23:59:59.000Z

250

Performance of the ATLAS Trigger System in 2010  

E-Print Network (OSTI)

Proton-proton collisions at $\\sqrt{s}=7$ TeV and heavy ion collisions at $\\sqrt{s_{NN}}$=2.76 TeV were produced by the LHC and recorded using the ATLAS experiment's trigger system in 2010. The LHC is designed with a maximum bunch crossing rate of 40 MHz and the ATLAS trigger system is designed to record approximately 200 of these per second. The trigger system selects events by rapidly identifying signatures of muon, electron, photon, tau lepton, jet, and B meson candidates, as well as using global event signatures, such as missing transverse energy. An overview of the ATLAS trigger system, the evolution of the system during 2010 and the performance of the trigger system components and selections based on the 2010 collision data are shown. A brief outline of plans for the trigger system in 2011 is presented

Aad, Georges; Abdallah, Jalal; Abdelalim, Ahmed Ali; Abdesselam, Abdelouahab; Abdinov, Ovsat; Abi, Babak; Abolins, Maris; Abramowicz, Halina; Abreu, Henso; Acerbi, Emilio; Acharya, Bobby Samir; Adams, David; Addy, Tetteh; Adelman, Jahred; Aderholz, Michael; Adomeit, Stefanie; Adragna, Paolo; Adye, Tim; Aefsky, Scott; Aguilar-Saavedra, Juan Antonio; Aharrouche, Mohamed; Ahlen, Steven; Ahles, Florian; Ahmad, Ashfaq; Ahsan, Mahsana; Aielli, Giulio; Akdogan, Taylan; ?kesson, Torsten Paul Ake; Akimoto, Ginga; Akimov, Andrei; Akiyama, Kunihiro; Alam, Mohammad; Alam, Muhammad Aftab; Albrand, Solveig; Aleksa, Martin; Aleksandrov, Igor; Alessandria, Franco; Alexa, Calin; Alexander, Gideon; Alexandre, Gauthier; Alexopoulos, Theodoros; Alhroob, Muhammad; Aliev, Malik; Alimonti, Gianluca; Alison, John; Aliyev, Magsud; Allport, Phillip; Allwood-Spiers, Sarah; Almond, John; Aloisio, Alberto; Alon, Raz; Alonso, Alejandro; Alviggi, Mariagrazia; Amako, Katsuya; Amaral, Pedro; Amelung, Christoph; Ammosov, Vladimir; Amorim, Antonio; Amors, Gabriel; Amram, Nir; Anastopoulos, Christos; Andari, Nansi; Andeen, Timothy; Anders, Christoph Falk; Anderson, Kelby; Andreazza, Attilio; Andrei, George Victor; Andrieux, Marie-Laure; Anduaga, Xabier; Angerami, Aaron; Anghinolfi, Francis; Anjos, Nuno; Annovi, Alberto; Antonaki, Ariadni; Antonelli, Mario; Antonelli, Stefano; Antonov, Alexey; Antos, Jaroslav; Anulli, Fabio; Aoun, Sahar; Aperio Bella, Ludovica; Apolle, Rudi; Arabidze, Giorgi; Aracena, Ignacio; Arai, Yasuo; Arce, Ayana; Archambault, John-Paul; Arfaoui, Samir; Arguin, Jean-Francois; Arik, Engin; Arik, Metin; Armbruster, Aaron James; Arnaez, Olivier; Arnault, Christian; Artamonov, Andrei; Artoni, Giacomo; Arutinov, David; Asai, Shoji; Asfandiyarov, Ruslan; Ask, Stefan; ?sman, Barbro; Asquith, Lily; Assamagan, Ketevi; Astbury, Alan; Astvatsatourov, Anatoli; Atoian, Grigor; Aubert, Bernard; Auerbach, Benjamin; Auge, Etienne; Augsten, Kamil; Aurousseau, Mathieu; Austin, Nicholas; Avolio, Giuseppe; Avramidou, Rachel Maria; Axen, David; Ay, Cano; Azuelos, Georges; Azuma, Yuya; Baak, Max; Baccaglioni, Giuseppe; Bacci, Cesare; Bach, Andre; Bachacou, Henri; Bachas, Konstantinos; Bachy, Gerard; Backes, Moritz; Backhaus, Malte; Badescu, Elisabeta; Bagnaia, Paolo; Bahinipati, Seema; Bai, Yu; Bailey, David; Bain, Travis; Baines, John; Baker, Oliver Keith; Baker, Mark; Baker, Sarah; Baltasar Dos Santos Pedrosa, Fernando; Banas, Elzbieta; Banerjee, Piyali; Banerjee, Swagato; Banfi, Danilo; Bangert, Andrea Michelle; Bansal, Vikas; Bansil, Hardeep Singh; Barak, Liron; Baranov, Sergei; Barashkou, Andrei; Barbaro Galtieri, Angela; Barber, Tom; Barberio, Elisabetta Luigia; Barberis, Dario; Barbero, Marlon; Bardin, Dmitri; Barillari, Teresa; Barisonzi, Marcello; Barklow, Timothy; Barlow, Nick; Barnett, Bruce; Barnett, Michael; Baroncelli, Antonio; Barone, Gaetano; Barr, Alan; Barreiro, Fernando; Barreiro Guimares da Costa, Joo; Barrillon, Pierre; Bartoldus, Rainer; Barton, Adam Edward; Bartsch, Detlef; Bartsch, Valeria; Bates, Richard; Batkova, Lucia; Batley, Richard; Battaglia, Andreas; Battistin, Michele; Battistoni, Giuseppe; Bauer, Florian; Bawa, Harinder Singh; Beare, Brian; Beau, Tristan; Beauchemin, Pierre-Hugues; Beccherle, Roberto; Bechtle, Philip; Beck, Hans Peter; Beckingham, Matthew; Becks, Karl-Heinz; Beddall, Andrew; Beddall, Ayda; Bedikian, Sourpouhi; Bednyakov, Vadim; Bee, Christopher; Begel, Michael; Behar Harpaz, Silvia; Behera, Prafulla; Beimforde, Michael; Belanger-Champagne, Camille; Bell, Paul; Bell, William; Bella, Gideon; Bellagamba, Lorenzo; Bellina, Francesco; Bellomo, Massimiliano; Belloni, Alberto; Beloborodova, Olga; Belotskiy, Konstantin; Beltramello, Olga; Ben Ami, Sagi; Benary, Odette; Benchekroun, Driss; Benchouk, Chafik; Bendel, Markus; Benedict, Brian Hugues; Benekos, Nektarios; Benhammou, Yan; Benjamin, Douglas; Benoit, Mathieu; Bensinger, James; Benslama, Kamal; Bentvelsen, Stan; Berge, David; Bergeaas Kuutmann, Elin; Berger, Nicolas; Berghaus, Frank; Berglund, Elina; Beringer, Jrg; Bernardet, Karim; Bernat, Pauline; Bernhard, Ralf; Bernius, Catrin; Berry, Tracey; Bertin, Antonio; Bertinelli, Francesco; Bertolucci, Federico; Besana, Maria Ilaria; Besson, Nathalie; Bethke, Siegfried; Bhimji, Wahid; Bianchi, Riccardo-Maria; Bianco, Michele; Biebel, Otmar; Bieniek, Stephen Paul; Biesiada, Jed; Biglietti, Michela; Bilokon, Halina; Bindi, Marcello; Binet, Sebastien; Bingul, Ahmet; Bini, Cesare; Biscarat, Catherine; Bitenc, Urban; Black, Kevin; Blair, Robert; Blanchard, Jean-Baptiste; Blanchot, Georges; Blazek, Tomas

2012-01-01T23:59:59.000Z

251

Performance of the ATLAS Trigger System in 2010  

E-Print Network (OSTI)

Proton-proton collisions at sqrt{s} = 7 TeV and heavy ion collisions at sqrt{s_NN} = 2.76 TeV were produced by the LHC and recorded using the ATLAS experiment's trigger system in 2010. The LHC is designed with a maximum bunch crossing rate of 40 MHz and the ATLAS trigger system is designed to record approximately 200 of these per second. The trigger system selects events by rapidly identifying signatures of muon, electron, photon, tau lepton, jet, and B meson candidates, as well as using global event signatures, such as missing transverse energy. An overview of the ATLAS trigger system, the evolution of the system during 2010 and the performance of the trigger system components and selections based on the 2010 collision data are shown. A brief outline of plans for the trigger system in 2011 is presented

The ATLAS Collaboration

2011-10-07T23:59:59.000Z

252

Generic CSP Performance Model for NREL's System Advisor Model: Preprint  

SciTech Connect

The suite of concentrating solar power (CSP) modeling tools in NREL's System Advisor Model (SAM) includes technology performance models for parabolic troughs, power towers, and dish-Stirling systems. Each model provides the user with unique capabilities that are catered to typical design considerations seen in each technology. Since the scope of the various models is generally limited to common plant configurations, new CSP technologies, component geometries, and subsystem combinations can be difficult to model directly in the existing SAM technology models. To overcome the limitations imposed by representative CSP technology models, NREL has developed a 'Generic Solar System' (GSS) performance model for use in SAM. This paper discusses the formulation and performance considerations included in this model and verifies the model by comparing its results with more detailed models.

Wagner, M. J.; Zhu, G.

2011-08-01T23:59:59.000Z

253

Yucca Mountain Total System Performance Assessment, Phase 3  

Science Conference Proceedings (OSTI)

This report discusses recent developments of EPRI's Total System Performance Assessment (TSPA) model applied to the candidate spent fuel and high-level radioactive waste (HLW) disposal site at Yucca Mountain, Nevada. Building on earlier work where a probability-based methodology was developed, the report details the recent modifications to the EPRI TSPA code, IMARC, applied to Yucca Mountain. The report also includes performance analyses using IMARC, identifies key technical components important to Yucca...

1996-12-02T23:59:59.000Z

254

Models used to assess the performance of photovoltaic systems.  

DOE Green Energy (OSTI)

This report documents the various photovoltaic (PV) performance models and software developed and utilized by researchers at Sandia National Laboratories (SNL) in support of the Photovoltaics and Grid Integration Department. In addition to PV performance models, hybrid system and battery storage models are discussed. A hybrid system using other distributed sources and energy storage can help reduce the variability inherent in PV generation, and due to the complexity of combining multiple generation sources and system loads, these models are invaluable for system design and optimization. Energy storage plays an important role in reducing PV intermittency and battery storage models are used to understand the best configurations and technologies to store PV generated electricity. Other researcher's models used by SNL are discussed including some widely known models that incorporate algorithms developed at SNL. There are other models included in the discussion that are not used by or were not adopted from SNL research but may provide some benefit to researchers working on PV array performance, hybrid system models and energy storage. The paper is organized into three sections to describe the different software models as applied to photovoltaic performance, hybrid systems, and battery storage. For each model, there is a description which includes where to find the model, whether it is currently maintained and any references that may be available. Modeling improvements underway at SNL include quantifying the uncertainty of individual system components, the overall uncertainty in modeled vs. measured results and modeling large PV systems. SNL is also conducting research into the overall reliability of PV systems.

Stein, Joshua S.; Klise, Geoffrey T.

2009-12-01T23:59:59.000Z

255

A scalable high-performance I/O system  

SciTech Connect

A significant weakness of many existing parallel supercomputers is their lack of high-performance parallel I/O. This weakness has prevented, in many cases, the full exploitation of the true potential of MPP systems. As part of a joint project with IBM, we have designed a parallel I/O system for an IBM SP system that can provide sustained I/O rates of greater than 160 MB/s from collections of compute nodes to archival disk and peak transfer rates that should exceed 400 MB/s from compute nodes to I/O servers. This testbed system is being used for a number of projects, first it will provide a high-performance experimental I/O system for traditional computational science applications, second it will b used as an I/O software and development environment for new parallel I/O algorithms and operating systems support, and third it will be used as the foundation for a number of new projects designed to develop enabling technology for the National Information Infrastructure. This report describes the system under development at Argonne National Laboratory, provides some preliminary performance results, and outlines future experiments and directions.

Henderson, M.; Nickless, B.; Stevens, R.

1994-05-01T23:59:59.000Z

256

Preliminary Transportation, Aging and Disposal Canister System Performance Specification  

SciTech Connect

This document provides specifications for selected system components of the Transportation, Aging and Disposal (TAD) canister-based system. A list of system specified components and ancillary components are included in Section 1.2. The TAD canister, in conjunction with specialized overpacks will accomplish a number of functions in the management and disposal of spent nuclear fuel. Some of these functions will be accomplished at purchaser sites where commercial spent nuclear fuel (CSNF) is stored, and some will be performed within the Office of Civilian Radioactive Waste Management (OCRWM) transportation and disposal system. This document contains only those requirements unique to applications within Department of Energy's (DOE's) system. DOE recognizes that TAD canisters may have to perform similar functions at purchaser sites. Requirements to meet reactor functions, such as on-site dry storage, handling, and loading for transportation, are expected to be similar to commercially available canister-based systems. This document is intended to be referenced in the license application for the Monitored Geologic Repository (MGR). As such, the requirements cited herein are needed for TAD system use in OCRWM's disposal system. This document contains specifications for the TAD canister, transportation overpack and aging overpack. The remaining components and equipment that are unique to the OCRWM system or for similar purchaser applications will be supplied by others.

C.A Kouts

2006-11-22T23:59:59.000Z

257

Least-Cost Groundwater Remediation Design Using Uncertain Hydrogeological Information  

Science Conference Proceedings (OSTI)

The research conducted by at the Research Center for Groundwater Remediation Design at the University of Vermont funded by the Department of Energy continues to focus on the implementation of a new method of including uncertainty into the optimal design of groundwater remediation systems. The uncertain parameter is the hydraulic conductivity of an aquifer. The optimization method utilized for this project is called robust optimization. The uncertainty of the hydraulic conductivity is described by a probability density function, PDF.

Pinder, George F.

1999-06-01T23:59:59.000Z

258

Performance Evaluation of a Bedside Cardiac SPECT System  

Science Conference Proceedings (OSTI)

This paper reports on the initial performance evaluation of a bedside cardiac PET/SPECT system. The system was designed to move within a hospital to image critically-ill patients, for example, those in intensive care unit (ICU) or emergency room settings, who cannot easily be transported to a conventional SPECT or PET facility. The system uses two compact (25 cm times 25 cm) detectors with pixilated NaI crystals and position sensitive PMTs. The performance is evaluated for both 140 keV (Tc-99m) and 511 keV (F-18) emitters with the system operating in single photon counting (SPECT) mode. The imaging performance metrics for both 140 keV and 511 keV included intrinsic energy resolution, spatial resolution (intrinsic, system, and reconstructed SPECT), detection sensitivity, count rate capability, and uniformity. Results demonstrated an intrinsic energy resolution of 31% at 140 keV and 23% at 511 keV, a planar intrinsic spatial resolution of 5.6 mm full width half-maximum (FWHM) at 140 keV and 6.3 mm FWHM at 511 keV, and a sensitivity of 4.15 countsmiddotmuCi-1 ldr s-1 at 140 keV and 0.67 counts ldr muCi-1 ldr s-1 at 511 keV. To further the study, a SPECT acquisition using a dynamic cardiac phantom was performed, and the resulting reconstructed images are presented.

M.T. Studenski, D.R. Gilland, J.G. Parker, B. Hammond, S. Majewski, A.G. Weisenberger, V. Popov

2009-06-01T23:59:59.000Z

259

New technology trends for improved IGCC system performance  

SciTech Connect

The application of gas turbine technology to IGCC systems requires careful consideration of the degree and type of integration used during the system design phase. Although gas turbines provide the primary output and efficiency gains for IGCC systems, as compared with conventional coal-fired power generation systems, they are commercially available only in specific size ranges. Therefore, it is up to the IGCC system designer to optimize the IGCC power plant within the required output, efficiency, and site conditions by selecting the system configuration carefully, particularly for air separation unit (ASU) integration incorporated with oxygen blown gasification systems. An IGCC system, based on a generic, entrained flow, oxygen blown gasification system and a GE STAG 109FA combined cycle has been evaluated with varying degrees of ASU integration, two fuel equivalent heating values and two gas turbine firing temperatures to provide net plant output and efficiency results. The data presented illustrate the system flexibility afforded by variation of ASU integration and the potential performance gains available through the continued use of gas turbine advances. Emphasis is placed on system design choices that favor either low initial investment cost or low operating cost for a given IGCC system output.

Anand, A.K.; Cook, C.S.; Corman, J.C. [GE Power Generation, Schenectady, NY (United States); Smith, A.R. [Air Products and Chemicals, Inc., Allentown, PA (United States)

1996-10-01T23:59:59.000Z

260

Source control strategy accelerates remediation  

SciTech Connect

Shallow land burial of ion-level radioactive wastes at ORNL has resulted in the release of contaminants into surrounding soil, groundwater, and surface water. Multiple contaminated areas occurring in close proximity make it difficult to relate contaminant releases to a specific site. To address this issue, similar and contiguous contaminated sites within the same drainage area have been combined into Waste Area Groupings. These Waste Area Groupings were prioritized and became the focus of the Comprehensive Environmental Response, Compensation, and Liability Act remediation process. Since the majority of the groupings are in the White Oak Creek drainage basin, the remediation strategy is to control contaminant releases from these source areas first, followed by remediation of White Oak Creek. In planning the remediation program, it became clear that until the issues of ultimate land use and institutional control, waste treatment technologies, and waste disposal facilities are resolved, final remediation objectives cannot be defined and remedial alternatives cannot be evaluated. Consequently, instead of postponing remedial actions until these issues are resolved, a strategy to control the sources of contaminant release with a serie s of interim actions was developed. In the near term, this strategy reduces off-site risk by eliminating contaminant releases and controls on-site risk through institutional control. Source control will allow time to achieve consensus on long-term institutional control and land use issues to develop appropriate treatment technologies, and to construct the necessary disposal facilities without further environmental degradation.

Garland, S.B. II [Oak Ridge National Lab., TN (United States); Hammond, R. [Environmental Protection Agency, Atlanta, GA (United States). Region IV

1993-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Performance comparison of absorption and desiccant solar cooling systems  

DOE Green Energy (OSTI)

Cooling systems are required to operate over a wide range of outdoor and load conditions; however, the performance of solar cooling components is often specified and compared at a typical design point such as ARI conditions. A method is presented to directly compare the performance of different desiccant and absorption cooling systems by using psychrometric analysis of air distribution cycles under a range of outdoor conditions that systems encounter over a year. Using analysis of cooling load distributions for a small commercial office building in Miami and Phoenix a seasonal COP is calculated for each system. The heat input can be provided by solar or by an auxiliary heat source, such as natural gas.

Warren, M.L.; Wahlig, M.

1986-01-01T23:59:59.000Z

262

Demonstration of dissociated methanol as an automotive fuel: system performance  

DOE Green Energy (OSTI)

The results are presented of system performance testing of an automotive system devised to provide hydrogen-rich gases to an internal combustion engine by dissociating methanol on board the vehicle. The dissociation of methanol absorbs heat from the engine exhaust and increases the lower heating value of the fuel by 22%. The engine thermal efficiency is increased by raising the compression ratio and burning with excess air.

Finegold, J. G.; Karpuk, M. E.; McKinnon, J. T.; Passamaneck, R.

1981-04-01T23:59:59.000Z

263

Performance analysis of mixed passive solar heating systems  

DOE Green Energy (OSTI)

The various situations in which interactions between south-facing systems serving a single thermal zone may affect the performance of the mixture are discussed. In particular, the nature of direct gain interactions with unvented Trombe walls was explored using a detailed thermal network computer program. The results are compared with predictions from the simple design analysis procedures which neglect interactions. This comparison showed that system interactions can significantly improve the peformance of a mixture under certain conditions.

Wray, W.O.; Best, E.D.

1985-01-01T23:59:59.000Z

264

Strategy to develop and test a multi-function scarifier end effector with an integral conveyance system for waste tank remediation. Strategy plan  

SciTech Connect

This strategy plan describes a coupled analytical/experimental approach to develop a multi-functional scarifier end effector coupled with a pneumatic conveyance system to retrieve wastes from underground storage tanks. The scarifier uses ultra-high-pressure water jets to rubblize and entrain waste forms such as salt cake, sludge, and viscous liquid that can be transported pneumatically. The three waste types (hard, brittle, salt cake, viscous liquid, and deformable sludge) present increasingly complex challenges for scarification and pneumatic conveyance. Salt cake is anticipated to be the easiest to retrieve because (1) a theoretical model of hydraulic rock fracture can be applied to estimate jet performance to fracture salt cake, and (2) gas-solids transport correlations can be used to predict pneumatic transport. Deformable sludge is anticipated to be the most difficult to retrieve: no theories, correlations, or data exist to predict this performance. However order-of-magnitude gas-solid correlations indicate particulate wastes of prototypic density can be transported to a height of 20 m within allowable pressure limits provided that the volume fraction of the gaseous phase is kept above 95%. Viscous liquid is anticipated to be of intermediate complexity to retrieve. Phenomena that are expected to affect system performance are ranked. Experiments and analyses necessary to evaluate the effects of these phenomena are proposed. Subsequent strategies for experiment test plans, system deployment, and operation and control will need to be developed.

Bamberger, J.A.; Bates, J.M.; Keska, J.K.; Elmore, M.R.; Lombardo, N.J.

1993-08-01T23:59:59.000Z

265

Energy Performance Assessment for Equipment and Utility Systems: Third  

Open Energy Info (EERE)

Energy Performance Assessment for Equipment and Utility Systems: Third Energy Performance Assessment for Equipment and Utility Systems: Third Edition Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Performance Assessment for Equipment and Utility Systems: Third Edition Focus Area: Energy Efficiency Topics: System & Application Design Website: www.emt-india.net/Book4/Book4.htm Equivalent URI: cleanenergysolutions.org/content/energy-performance-assessment-equipme Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Technical Assistance Regulations: "Energy Standards,Upgrade Requirements" is not in the list of possible values (Agriculture Efficiency Requirements, Appliance & Equipment Standards and Required Labeling, Audit Requirements, Building Certification, Building Codes, Cost Recovery/Allocation, Emissions Mitigation Scheme, Emissions Standards, Enabling Legislation, Energy Standards, Feebates, Feed-in Tariffs, Fuel Efficiency Standards, Incandescent Phase-Out, Mandates/Targets, Net Metering & Interconnection, Resource Integration Planning, Safety Standards, Upgrade Requirements, Utility/Electricity Service Costs) for this property.

266

A New Method to Evaluate Human-Robot System Performance  

Science Conference Proceedings (OSTI)

One of the key issues in space exploration is that of deciding what space tasks are best done with humans, with robots, or a suitable combination of each. In general, human and robot skills are complementary. Humans provide as yet unmatched capabilities ... Keywords: analysis, human-robot systems, performance, robotics

G. Rodriguez; C. R. Weisbin

2003-03-01T23:59:59.000Z

267

Understanding performance in coliseum, an immersive videoconferencing system  

Science Conference Proceedings (OSTI)

Coliseum is a multiuser immersive remote teleconferencing system designed to provide collaborative workers the experience of face-to-face meetings from their desktops. Five cameras are attached to each PC display and directed at the participant. From ... Keywords: 3D virtual environments, Telepresence, network applications, performance measurement, streaming media, videoconferencing, view synthesis

H. Harlyn Baker; Nina Bhatti; Donald Tanguay; Irwin Sobel; Dan Gelb; Michael E. Goss; W. Bruce Culbertson; Thomas Malzbender

2005-05-01T23:59:59.000Z

268

Performance of amorphous silicon photovoltaic systems, 1985--1989  

DOE Green Energy (OSTI)

This report discusses the performance of commercial amorphous silicon modules used in photovoltaic power systems from 1985 through 1989. Topics discussed include initial degradation, reliability, durability, and effects of temperature and solar irradiance on peak power and energy production. 6 refs., 18 figs.

Not Available

1990-04-01T23:59:59.000Z

269

Instrumentation for Evaluating PV System Performance Losses from Snow  

DOE Green Energy (OSTI)

When designing a photovoltaic (PV) system for northern climates, the prospective installation should be evaluated with respect to the potentially detrimental effects of snow preventing solar radiation from reaching the PV cells. The extent to which snow impacts performance is difficult to determine because snow events also increase the uncertainty of the solar radiation measurement, and the presence of snow needs to be distinguished from other events that can affect performance. This paper describes two instruments useful for evaluating PV system performance losses from the presence of snow: (1) a pyranometer with a heater to prevent buildup of ice and snow, and (2) a digital camera for remote retrieval of images to determine the presence of snow on the PV array.

Marion, B.; Rodriguez, J.; Pruett, J.

2009-01-01T23:59:59.000Z

270

Radioactive tank waste remediation focus area  

SciTech Connect

EM`s Office of Science and Technology has established the Tank Focus Area (TFA) to manage and carry out an integrated national program of technology development for tank waste remediation. The TFA is responsible for the development, testing, evaluation, and deployment of remediation technologies within a system architecture to characterize, retrieve, treat, concentrate, and dispose of radioactive waste stored in the underground stabilize and close the tanks. The goal is to provide safe and cost-effective solutions that are acceptable to both the public and regulators. Within the DOE complex, 335 underground storage tanks have been used to process and store radioactive and chemical mixed waste generated from weapon materials production and manufacturing. Collectively, thes tanks hold over 90 million gallons of high-level and low-level radioactive liquid waste in sludge, saltcake, and as supernate and vapor. Very little has been treated and/or disposed or in final form.

1996-08-01T23:59:59.000Z

271

Environmental Restoration Remedial Action Program records management plan  

SciTech Connect

The US Department of Energy-Richland Operations Office (DOE-RL) Environmental Restoration Field Office Management Plan ((FOMP) DOE-RL 1989) describes the plans, organization, and control systems to be used for management of the Hanford Site environmental restoration remedial action program. The FOMP, in conjunction with the Environmental Restoration Remedial Action Quality Assurance Requirements document ((QARD) DOE-RL 1991), provides all the environmental restoration remedial action program requirements governing environmental restoration work on the Hanford Site. The FOMP requires a records management plan be written. The Westinghouse Hanford Company (Westinghouse Hanford) Environmental Restoration Remedial Action (ERRA) Program Office has developed this ERRA Records Management Plan to fulfill the requirements of the FOMP. This records management plan will enable the program office to identify, control, and maintain the quality assurance, decisional, or regulatory prescribed records generated and used in support of the ERRA Program. 8 refs., 1 fig.

Michael, L.E.

1991-07-01T23:59:59.000Z

272

Thermal performance assessment of an advanced glazing system  

SciTech Connect

The four different techniques which were used to test an advanced, four-pane glazing system and standard double-glazed unit are described. The results from each test are compared. Where agreement is not good, explanations are suggested. The advanced glazing system was found to have a U-value of 0.9 W/m[sup 2] K and a shading coefficient of 0.48. The glazing simulation models WINDOW (Lawrence Berkeley Laboratories, Berkeley, CA, US) and MULTB (Pilkington Glass, U.K.) were used to predict glazing performance. Simulation of the two glazing systems which were experimentally assessed allows comparison between models, and between predicted and measured performance. Agreement was within the error bands associated with each assessment. 7 refs., 2 figs., 1 tab.

Robinson, P. (Architectural Association, London (United Kingdom)); Littler, J. (Univ. of Westminster, London (United Kingdom))

1993-02-01T23:59:59.000Z

273

Open-cycle OTEC system performance analysis. [Claude cycle  

DOE Green Energy (OSTI)

An algorithm developed to calculate the performance of Claude-Cycle ocean thermal energy conversion (OTEC) systems is described. The algorithm treats each component of the system separately and then interfaces them to form a complete system, allowing a component to be changed without changing the rest of the algorithm. Two components that are subject to change are the evaporator and condenser. For this study we developed mathematical models of a channel-flow evaporator and both a horizontal jet and spray director contact condenser. The algorithm was then programmed to run on SERI's CDC 7600 computer and used to calculate the effect on performance of deaerating the warm and cold water streams before entering the evaporator and condenser, respectively. This study indicates that there is no advantage to removing air from these streams compared with removing the air from the condenser.

Lewandowski, A.A.; Olson, D.A.; Johnson, D.H.

1980-10-01T23:59:59.000Z

274

Performances of Induction System for Nanosecond Mode Operation  

SciTech Connect

An induction system comprises an array of single turn pulse transformers. Ferromagnetic cores of transformers are toroids that are stacked along the longitudinal core axis. Another name for this array is a fraction transformer or an adder. The primary and secondary windings of such a design have one turn. The step up mode is based on the number of primary pulse sources. The secondary windings are connected in series. Performances of such a system for the nanosecond range mode operation are different in comparison to the performances of traditional multi-turn pulse transformers, which are working on a 100+ nanosecond mode operation. In this paper, the author discusses which aspects are necessary to take into account for the high power nanosecond fractional transformer designs. The engineering method of the nanosecond induction system design is presented.

Krasnykh, Anatoly; /SLAC

2006-05-16T23:59:59.000Z

275

System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System (Brochure)  

DOE Green Energy (OSTI)

Technical briefing to report the outcomes of a data monitoring effort to determine the nature of solar vent preheat system performance problems at a U.S. military installation. The analysis reports up-to-date research and findings regarding system design, helping to clarify the issue as a factor of system design, rather than a shortcoming of SVP systems.

Not Available

2011-08-01T23:59:59.000Z

276

Design and performance of an ammonia measurement system  

E-Print Network (OSTI)

Ammonia emissions from animal feeding operations (AFOs) have recently come under increased scrutiny. The US Environmental Protection Agency (EPA) has come under increased pressure from special interest groups to regulate ammonia. Regulation of ammonia is very difficult because every facility has different manure management practices. Different management practices lead to different emissions for every facility. Researchers have been tasked by industry to find best management practices to reduce emissions. The task cannot be completed without equipment that can efficiently and accurately compare emissions. To complete this task, a measurement system was developed and performance tested to measure ammonia. Performance tests included uncertainty analysis, system response, and adsorption kinetics. A measurement system was designed for measurement of gaseous emissions from ground level area sources (GLAS) in order to sample multiple receptors with a single sensor. This multiplexer may be used in both local and remote measurement systems to increase the sampling rate of gaseous emissions. The increased data collection capacity with the multiplexer allows for nearly three times as many samples to be taken in the same amount of time while using the same protocol for sampling. System response analysis was performed on an ammonia analyzer, a hydrogen sulfide analyzer, and tubing used with flux chamber measurement. System responses were measured and evaluated using transfer functions. The system responses for the analyzers were found to be first order with delay in auto mode. The tubing response was found to be a first order response with delay. Uncertainty analysis was performed on an ammonia sampling and analyzing system. The system included an analyzer, mass flow controllers, calibration gases, and analog outputs. The standard uncertainty was found to be 443 ppb when measuring a 16 ppm ammonia stream with a 20 ppm span. A laboratory study dealing with the adsorption kinetics of ammonia on a flux chamber was performed to determine if adsorption onto the chamber walls was significant. The study found that the adsorption would not significantly change the concentration of the output flow 30 minutes after a clean chamber was exposed to ammonia concentrations for concentrations above 2.5 ppm.

Boriack, Cale Nolan

2005-12-01T23:59:59.000Z

277

ICDF Complex Remedial Action Report  

SciTech Connect

This Idaho CERCLA Disposal Facility (ICDF) Remedial Action Report has been prepared in accordance with the requirements of Section 6.2 of the INEEL CERCLA Disposal Facility Remedial Action Work Plan. The agency prefinal inspection of the ICDF Staging, Storage, Sizing, and Treatment Facility (SSSTF) was completed in June of 2005. Accordingly, this report has been developed to describe the construction activities completed at the ICDF along with a description of any modifications to the design originally approved for the facility. In addition, this report provides a summary of the major documents prepared for the design and construction of the ICDF, a discussion of relevant requirements and remedial action objectives, the total costs associated with the development and operation of the facility to date, and identification of necessary changes to the Agency-approved INEEL CERCLA Disposal Facility Remedial Action Work Plan and the ICDF Complex Operations and Maintenance Plan.

W. M. Heileson

2007-09-26T23:59:59.000Z

278

Duct Leakage Impacts on VAV System Performance in Large Commercial  

NLE Websites -- All DOE Office Websites (Extended Search)

Duct Leakage Impacts on VAV System Performance in Large Commercial Duct Leakage Impacts on VAV System Performance in Large Commercial Buildings Title Duct Leakage Impacts on VAV System Performance in Large Commercial Buildings Publication Type Report LBNL Report Number LBNL-53605 Year of Publication 2003 Authors Wray, Craig P., and Nance Matson Abstract The purpose of this study is to evaluate the variability of duct leakage impacts on air distribution system performance for typical large commercial buildings in California. Specifically, a hybrid DOE-2/TRNSYS sequential simulation approach was used to model the energy use of a low-pressure terminal-reheat variable-air-volume (VAV) HVAC system with six duct leakage configurations (tight to leaky) in nine prototypical large office buildings (representing three construction eras in three California climates where these types of buildings are common). Combined fan power for the variable-speed-controlled supply and return fans at design conditions was assumed to be 0.8 W/cfm. The VAV system that we simulated had perfectly insulated ducts, and maintained constant static pressure in the ducts upstream of the VAV boxes and a constant supply air temperature at the air-handler. Further evaluations of duct leakage impacts should be carried out in the future after methodologies are developed to deal with duct surface heat transfer effects, to deal with airflows entering VAV boxes from ceiling return plenums (e.g., to model parallel fan-powered VAV boxes), and to deal with static pressure reset and supply air temperature reset strategies.

279

May 28, 2007 Middleware in Modern High Performance Computing System Architectures 1/20 Middleware in Modern High Performance  

E-Print Network (OSTI)

May 28, 2007 Middleware in Modern High Performance Computing System Architectures 1/20 Middleware in Modern High Performance Computing System Architectures Christian Engelmann1,2, Hong Ong1, Stephen L 28, 2007 Middleware in Modern High Performance Computing System Architectures 2/20 Talk Outline

Engelmann, Christian

280

Reviewing real-time performance of nuclear reactor safety systems  

SciTech Connect

The purpose of this paper is to recommend regulatory guidance for reviewers examining real-time performance of computer-based safety systems used in nuclear power plants. Three areas of guidance are covered in this report. The first area covers how to determine if, when, and what prototypes should be required of developers to make a convincing demonstration that specific problems have been solved or that performance goals have been met. The second area has recommendations for timing analyses that will prove that the real-time system will meet its safety-imposed deadlines. The third area has description of means for assessing expected or actual real-time performance before, during, and after development is completed. To ensure that the delivered real-time software product meets performance goals, the paper recommends certain types of code-execution and communications scheduling. Technical background is provided in the appendix on methods of timing analysis, scheduling real-time computations, prototyping, real-time software development approaches, modeling and measurement, and real-time operating systems.

Preckshot, G.G. [Lawrence Livermore National Lab., CA (United States)

1993-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Feasibility of a driver performance data acquisition system  

Science Conference Proceedings (OSTI)

The National Highway Traffic Safety Administration (NHTSA) envisions many future situations in which the effectiveness and consequences of new intelligent vehicle-highway systems technologies will need to be studied in actual production vehicles. Such studies will enable evaluations in vehicles which are familiar to drivers. These studies would be future enhanced by the availability of an instrumentation package that can be easily installed in these vehicles to enable specific vehicle configurations of interest to be evaluated, thereby increasing the variety of vehicle options that are available for study. Ideally, an approach is needed that would allow data collection from a variety of vehicle models and types, and would address the issue of driver familiarity. Such an approach is embodied in the concept of a driver performance data acquisition system that could be installed in a wide range of vehicles within a relatively short period of time. As a universally adaptable system, it would provide researchers with the ability to manually input data as well as directly record information on driver, vehicle, roadway, and environmental parameters. Furthermore, it would enable the measurement of driver performance in the driver`s own vehicle, thereby ensuring vehicle familiarity. In addition, it would be possible to measure driver performance in relation to any vehicle design characteristic at relatively little expense and effort, and would make it easy to update existing models of driver/vehicle behavior to reflect performance characteristics in vehicles of current manufacture.

Carter, R.J.; Spelt, P.F. [Oak Ridge National Lab., TN (United States); Goodman, M.J. [National Highway Traffic Safety Administration, Washington, DC (United States). Office of Crash Avoidance Research

1994-06-01T23:59:59.000Z

282

Measured Performance of Energy-Efficient Computer Systems  

E-Print Network (OSTI)

The intent of this study is to explore the potential performance of both Energy Star computers/printers and add-on control devices individually, and their expected savings if collectively applied in a typical office building in a hot and humid climate. Recent surveys have shown that the use of personal computer systems in commercial office buildings is expanding rapidly. The energy consumption of such a growing end-use also has a significant impact on the total building power demand. In warmer climates, office equipment energy use has important implications for building cooling loads as well as those directly associated with computing tasks. Recently, the Environmental Protection Agency (EPA) has developed an Energy Star (ES) rating system intended to endorse more efficient equipment. To research the comparative performance of conventional and low-energy computer systems, four Energy Star computer systems and two computer systems equipped with energy saving devices were monitored for power demand. Comparative data on the test results are summarized. In addition, a brief analysis uses the DOE-2.1E computer simulation to examine the impact of the test results and HVAC interactions if generically applied to computer systems in a modern office building in Florida's climate.

Floyd, D. B.; Parker, D. S.

1996-01-01T23:59:59.000Z

283

A standardized approach to PV system performance model validation.  

DOE Green Energy (OSTI)

PV performance models are used to predict how much energy a PV system will produce at a given location and subject to prescribed weather conditions. These models are commonly used by project developers to choose between module technologies and array designs (e.g., fixed tilt vs. tracking) for a given site or to choose between different geographic locations, and are used by the financial community to establish project viability. Available models can differ significantly in their underlying mathematical formulations and assumptions and in the options available to the analyst for setting up a simulation. Some models lack complete documentation and transparency, which can result in confusion on how to properly set up, run, and document a simulation. Furthermore, the quality and associated uncertainty of the available data upon which these models rely (e.g., irradiance, module parameters, etc.) is often quite variable and frequently undefined. For these reasons, many project developers and other industry users of these simulation tools have expressed concerns related to the confidence they place in PV performance model results. To address this problem, we propose a standardized method for the validation of PV system-level performance models and a set of guidelines for setting up these models and reporting results. This paper describes the basic elements for a standardized model validation process adapted especially for PV performance models, suggests a framework to implement the process, and presents an example of its application to a number of available PV performance models.

Stein, Joshua S.; Jester, Terry (Hudson Clean Energy Partners); Posbic, Jean (BP Solar); Kimber, Adrianne (First Solar); Cameron, Christopher P.; Bourne, Benjamin (SunPower Corporation)

2010-10-01T23:59:59.000Z

284

Thermodynamic data management system for nuclear waste disposal performance assessment  

Science Conference Proceedings (OSTI)

Thermodynamic property values for use in assessing the performance of a nuclear waste repository are described. More emphasis is on a computerized data base management system which facilitates use of the thermodynamic data in sensitivity analysis and other studies which critically assess the performance of disposal sites. Examples are given of critical evaluation procedures; comparison of apparent equilibrium constants calculated from the data base, with other work; and of correlations useful in estimating missing values of both free energy and enthalpy of formation for aqueous species. 49 refs., 11 figs., 6 tabs.

Phillips, S.L.; Hale, F.V.; Siegel, M.D.

1988-04-01T23:59:59.000Z

285

Multi-Source Hydronic Heat Pump System Performance Test Bed  

E-Print Network (OSTI)

An extensive independent evaluation recently was completed of the Multi-Source Hydronic Heat Pump (MSHHP) system, a proprietary heating, ventilating and air conditioning (HVAC) system developed by Meckler Systems Group. The MSHHP tests were conducted on a unique test bed designed and constructed by National Technical Systems (NTS) through a research and development grant program funded by Southern California Edison Company. This paper outlines testing methods and results, including evaluations of peak power and energy savings allowed by the innovative system. The main difference between the MSHHP and a conventional HVAC system is use of a chilled water "diversity" cooling loop interconnecting air to water coils (located at each water source heat pump unit) with a central chilled water storage tank. The MSHHP system uses significantly less energy than a conventional HVAC system, and lowers peak demand by shifting required electrical energy consumption to lower-cost, off-peak and mid-peak rates. Lower heat pump capacities are a main feature of the MSHHP. This is accomplished by pre-cooling return air from the zone space, a process that also allows the heat pump to operate at a higher Coefficient of Performance (COP), thereby contributing to further energy savings.

Meckler, M.

1984-01-01T23:59:59.000Z

286

Computational Human Performance Modeling For Alarm System Design  

SciTech Connect

The introduction of new technologies like adaptive automation systems and advanced alarms processing and presentation techniques in nuclear power plants is already having an impact on the safety and effectiveness of plant operations and also the role of the control room operator. This impact is expected to escalate dramatically as more and more nuclear power utilities embark on upgrade projects in order to extend the lifetime of their plants. One of the most visible impacts in control rooms will be the need to replace aging alarm systems. Because most of these alarm systems use obsolete technologies, the methods, techniques and tools that were used to design the previous generation of alarm system designs are no longer effective and need to be updated. The same applies to the need to analyze and redefine operators alarm handling tasks. In the past, methods for analyzing human tasks and workload have relied on crude, paper-based methods that often lacked traceability. New approaches are needed to allow analysts to model and represent the new concepts of alarm operation and human-system interaction. State-of-the-art task simulation tools are now available that offer a cost-effective and efficient method for examining the effect of operator performance in different conditions and operational scenarios. A discrete event simulation system was used by human factors researchers at the Idaho National Laboratory to develop a generic alarm handling model to examine the effect of operator performance with simulated modern alarm system. It allowed analysts to evaluate alarm generation patterns as well as critical task times and human workload predicted by the system.

Jacques Hugo

2012-07-01T23:59:59.000Z

287

Thermal performance of concrete masonry unit wall systems  

Science Conference Proceedings (OSTI)

New materials, modern building wall technologies now available in the building marketplace, and unique, more accurate, methods of thermal analysis of wall systems create an opportunity to design and erect buildings where thermal envelopes that use masonry wall systems can be more efficient. Thermal performance of the six masonry wall systems is analyzed. Most existing masonry systems are modifications of technologies presented in this paper. Finite difference two-dimensional and three-dimensional computer modeling and unique methods of the clear wall and overall thermal analysis were used. In the design of thermally efficient masonry wall systems is t to know how effectively the insulation material is used and how the insulation shape and its location affect the wall thermal performance. Due to the incorrect shape of the insulation or structural components, hidden thermal shorts cause additional heat losses. In this study, the thermal analysis of the clear wall was enriched with the examination of the thermal properties of the wall details and the study of a quantity defined herein the Thermal Efficiency of the insulation material.

Kosny, J.

1995-12-31T23:59:59.000Z

288

Solar energy system performance evaluation, July 1979 through June 1980  

SciTech Connect

The Loudoun County site is the Charles S. Monroe Vocational Technical School in Leesburg, Virginia. The active solar energy system is designed to supply 26% of the domestic hot water demand. It is equipped with 1225 square feet of double glazed flat-plate collectors manufactured by Southwest Enertech, a 2056 gallon liquid storage tank located in the school's mechanical room, and a backup electric immersion heater, 2 stage, 20 kW per stage. The system performance for the period July 1979 through June 1980 is presented, and the meteorological conditions are included. (WHK)

Missal, D.

1980-01-01T23:59:59.000Z

289

In Situ Bioremediation Interim Remedial Action Report, Test Area North, Operable Unit 1-07B  

E-Print Network (OSTI)

This Interim Remedial Action Report is for the in situ bioremediation remedial component of Operable Unit 1-07B at Test Area North at the Idaho National Laboratory. Under U.S. Environmental Protection Agency guidance, an interim report for a long-term groundwater remedial action provides a chronology of events and a description of the remedial action facilities, systems, components, and operating documents that lead to a declaration that the system is operational and functional. It is the conclusion of this report that the in situ bioremediation remedial component includes the infrastructure and programs necessary to achieve the objectives of the in situ bioremediation remedial component for contaminated groundwater in the vicinity of the TSF-05 well; therefore, it can be deemed operational and functional. iii ivCONTENTS ABSTRACT.................................................................................................................................................iii

Unit -b; Prepared For The

2009-01-01T23:59:59.000Z

290

Real-time performance monitoring and management system  

SciTech Connect

A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area.

Budhraja, Vikram S. (Los Angeles, CA); Dyer, James D. (La Mirada, CA); Martinez Morales, Carlos A. (Upland, CA)

2007-06-19T23:59:59.000Z

291

Total System Performance Assessment - License Application Methods and Approach  

Science Conference Proceedings (OSTI)

''Total System Performance Assessment-License Application (TSPA-LA) Methods and Approach'' provides the top-level method and approach for conducting the TSPA-LA model development and analyses. The method and approach is responsive to the criteria set forth in Total System Performance Assessment Integration (TSPAI) Key Technical Issues (KTIs) identified in agreements with the U.S. Nuclear Regulatory Commission, the ''Yucca Mountain Review Plan'' (YMRP), ''Final Report'' (NRC 2003 [163274]), and the NRC final rule 10 CFR Part 63 (NRC 2002 [156605]). This introductory section provides an overview of the TSPA-LA, the projected TSPA-LA documentation structure, and the goals of the document. It also provides a brief discussion of the regulatory framework, the approach to risk management of the development and analysis of the model, and the overall organization of the document. The section closes with some important conventions that are used in this document.

J. McNeish

2003-12-08T23:59:59.000Z

292

Total System Performance Assessment-License Application Methods and Approach  

SciTech Connect

''Total System Performance Assessment-License Application (TSPA-LA) Methods and Approach'' provides the top-level method and approach for conducting the TSPA-LA model development and analyses. The method and approach is responsive to the criteria set forth in Total System Performance Assessment Integration (TSPAI) Key Technical Issue (KTI) agreements, the ''Yucca Mountain Review Plan'' (CNWRA 2002 [158449]), and 10 CFR Part 63. This introductory section provides an overview of the TSPA-LA, the projected TSPA-LA documentation structure, and the goals of the document. It also provides a brief discussion of the regulatory framework, the approach to risk management of the development and analysis of the model, and the overall organization of the document. The section closes with some important conventions that are utilized in this document.

J. McNeish

2002-09-13T23:59:59.000Z

293

User characteristics and performance with automated mobile phone systems  

Science Conference Proceedings (OSTI)

The aim of this study was to investigate the impact of individual differences (such as gender and attitude towards mobile phone use in public places) on the usability of a speech-activated mobile city guide service in various context of use ... Keywords: cell phones, context of use, evaluation, gender, individual differences, mobile communications, mobile phone services, mobile phones, performance, private locations, public locations, public use, system design, usability, user characteristics

Mark Howell; Steve Love; Mark Turner

2008-01-01T23:59:59.000Z

294

Performance comparison between air and liquid residential solar heating systems  

SciTech Connect

Comparisons of system performance for the flat plate liquid-heating system in CSU Solar House I, the evacuated-tube collector system in Solar House I, and the flat plate air-heating system in CSU Solar House II are described for selected months of the 1976 and 1977 heating seasons. Only space and domestic water heating data are compared. The flat plate air- and liquid-heating collectors operating with complete heating systems have nearly equal efficiencies when based upon solar flux while the collector fluids are flowing, but approximately 40% more energy is collected during a heating season with the air-heating system because the air system operates over a longer period of the day. On the basis of short-term data, the evacuated tube collector array on Solar House I is about 27% more efficient than the flat plate air-heating collector array on Solar House II based on gross roof area occupied by the collectors and manifolds.

Karaki, S.; Duff, W.S.; Loef, G.O.G.

1978-01-01T23:59:59.000Z

295

Independent Technical Review of the X-740 Groundwater Remedy, Portsmouth, Ohio: Technical Evaluation and Recommendations  

Science Conference Proceedings (OSTI)

Two major remedial campaigns have been applied to a plume of trichloroethene (TCE) contaminated groundwater near the former X-740 facility at the Portsmouth Gaseous Diffusion Plant in Piketon Ohio. The two selected technologies, phytoremediation using a stand of hybrid poplar trees from 1999-2007 and in situ chemical oxidation using modified Fenton's Reagent from 2008-2009, have proven ineffective in achieving remedial action objectives (RAOs). The 'poor' performance of these technologies is a direct result of site specific conditions and the local contaminant hydrogeology. Key among these challenges is the highly heterogeneous subsurface geology with a thin contaminated aquifer zone (the Gallia) - the behavior of the contamination in the Gallia is currently dominated by slow release of TCE from the clay of the overlying Minford formation, from the sandstone of the underlying Berea formation, and from clayey layers within the Gallia itself. In response to the remediation challenges for the X-740 plume, the Portsmouth team (including the US Department of Energy (DOE), the site contractor (CDM), and the Ohio Environmental Protection Agency (OEPA)) is evaluating the feasibility of remediation at this site and identifying specific alternatives that are well matched to site conditions and that would maximize the potential for achieving RAOs. To support this evaluation, the DOE Office of Groundwater and Soil Remediation (EM-32) assembled a team of experts to serve as a resource and provide input and recommendations to Portsmouth. Despite the challenging site conditions and the failure of the previous two remediation campaigns to adequately move the site toward RAOs, the review team was unanimous in the conclusion that an effective combination of cost effective technologies can be identified. Further, the team expressed optimism that RAOs can be achieved if realistic timeframes are accepted by all parties. The initial efforts of the review team focused on reviewing the site history and data and organizing the information into a conceptual model and findings to assist in evaluating the potential of alternative remediation technologies. Examples of the key conceptual findings of the EM-32 review team were: (1) The Gallia represents the most practical target for deployment of in situ remediation treatment reagents - injection/extraction focused in this zone would provide maximum lateral impacts with minimal potential risk of failure or adverse collateral impacts. (2) The slow release of TCE from clay and sandstone into the Gallia represent a long term source of TCE that can re-contaminate the Gallia in the future - technologies that effectively treat the permeable portions of the Gallia, but do not leave residual treatment capacity in the system are unlikely to achieve long term remedial action objectives. CDM, the site contractor, provided important and useful information documenting the status and preliminary results of the on-site technology alternative evaluation. In the CDM evaluation, potential technologies were either retained (or screened out) in two preliminary evaluation phases and a detailed evaluation was performed on the five alternatives that were retained into the final 'detailed analysis' phase. The five alternatives that were included in the detailed analysis were: (1) hydraulic fracturing with EHC (a solid bioremediation amendment), (2) enhanced anaerobic bioremediation, (3) in situ chemical oxidation, (4) electrical resistance heating, and (5) reactive barriers. In several cases, two or three variants were separately evaluated. The review team found the CDM effort to be generally credible and reasonable. Thus, the review team focused on providing additional considerations and inputs to Portsmouth and on amending and refining the alternatives in ways that might improve performance and/or reduce costs. The Department of Energy Portsmouth Paducah Project Office requested assistance from Department of Energy Office of Environmental Management (EM-32) to provide an independent technical panel to review previous and o

Looney, B.; Rhia, B.; Jackson, D.; Eddy-Dilek, C.

2010-04-30T23:59:59.000Z

296

Performance of the Keck Observatory adaptive optics system  

SciTech Connect

In this paper, the adaptive optics (AO) system at the W.M. Keck Observatory is characterized. The authors calculate the error budget of the Keck AO system operating in natural guide star mode with a near infrared imaging camera. By modeling the control loops and recording residual centroids, the measurement noise and band-width errors are obtained. The error budget is consistent with the images obtained. Results of sky performance tests are presented: the AO system is shown to deliver images with average Strehl ratios of up to 0.37 at 1.58 {micro}m using a bright guide star and 0.19 for a magnitude 12 star.

van Dam, M A; Mignant, D L; Macintosh, B A

2004-01-19T23:59:59.000Z

297

Coal-fired high performance power generating system. Final report  

SciTech Connect

As a result of the investigations carried out during Phase 1 of the Engineering Development of Coal-Fired High-Performance Power Generation Systems (Combustion 2000), the UTRC-led Combustion 2000 Team is recommending the development of an advanced high performance power generation system (HIPPS) whose high efficiency and minimal pollutant emissions will enable the US to use its abundant coal resources to satisfy current and future demand for electric power. The high efficiency of the power plant, which is the key to minimizing the environmental impact of coal, can only be achieved using a modern gas turbine system. Minimization of emissions can be achieved by combustor design, and advanced air pollution control devices. The commercial plant design described herein is a combined cycle using either a frame-type gas turbine or an intercooled aeroderivative with clean air as the working fluid. The air is heated by a coal-fired high temperature advanced furnace (HITAF). The best performance from the cycle is achieved by using a modern aeroderivative gas turbine, such as the intercooled FT4000. A simplified schematic is shown. In the UTRC HIPPS, the conversion efficiency for the heavy frame gas turbine version will be 47.4% (HHV) compared to the approximately 35% that is achieved in conventional coal-fired plants. This cycle is based on a gas turbine operating at turbine inlet temperatures approaching 2,500 F. Using an aeroderivative type gas turbine, efficiencies of over 49% could be realized in advanced cycle configuration (Humid Air Turbine, or HAT). Performance of these power plants is given in a table.

1995-08-31T23:59:59.000Z

298

X-701B Groundwater Remedy Portsmouth Ohio | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

X-701B Groundwater Remedy Portsmouth Ohio X-701B Groundwater Remedy Portsmouth Ohio Full Document and Summary Versions are available for download X-701B Groundwater Remedy...

299

Northeast Site Area A NAPL Remediation Final Report.doc  

Office of Legacy Management (LM)

82-TAC 82-TAC U.S. Department of Energy Work Performed Under DOE Contract No. for the U.S. Department of Energy DE-AC13-02GJ79491 Approved for public release; distribution is unlimited. Pinellas Environmental Restoration Project Northeast Site Area A NAPL Remediation Final Report September 2003 N0065200 GJO- 2003- 482- TAC GJO- PIN 13.12.10 Pinellas Environmental Restoration Project Northeast Site Area A NAPL Remediation Final Report Young - Rainey STAR Center September 2003 Prepared by U.S. Department of Energy Grand Junction Office Grand Junction, Colorado Work Performed Under DOE Contract Number DE-AC13- 02GJ79491 Document Number N0065200 Contents DOE/Grand Junction Office Northeast Site Area A NAPL Remediation Final Report September 2003 Page iii

300

Performance-Based Technology Selection Filter description report  

SciTech Connect

A formal methodology has been developed for identifying technology gaps and assessing innovative or postulated technologies for inclusion in proposed Buried Waste Integrated Demonstration (BWID) remediation systems. Called the Performance-Based Technology Selection Filter, the methodology provides a formalized selection process where technologies and systems are rated and assessments made based on performance measures, and regulatory and technical requirements. The results are auditable, and can be validated with field data. This analysis methodology will be applied to the remedial action of transuranic contaminated waste pits and trenches buried at the Idaho National Engineering Laboratory (INEL).

O' Brien, M.C.; Morrison, J.L.; Morneau, R.A.; Rudin, M.J.; Richardson, J.G.

1992-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Enhanced Performance Assessment System (EPAS) for carbon sequestration.  

SciTech Connect

Carbon capture and sequestration (CCS) is an option to mitigate impacts of atmospheric carbon emission. Numerous factors are important in determining the overall effectiveness of long-term geologic storage of carbon, including leakage rates, volume of storage available, and system costs. Recent efforts have been made to apply an existing probabilistic performance assessment (PA) methodology developed for deep nuclear waste geologic repositories to evaluate the effectiveness of subsurface carbon storage (Viswanathan et al., 2008; Stauffer et al., 2009). However, to address the most pressing management, regulatory, and scientific concerns with subsurface carbon storage (CS), the existing PA methodology and tools must be enhanced and upgraded. For example, in the evaluation of a nuclear waste repository, a PA model is essentially a forward model that samples input parameters and runs multiple realizations to estimate future consequences and determine important parameters driving the system performance. In the CS evaluation, however, a PA model must be able to run both forward and inverse calculations to support optimization of CO{sub 2} injection and real-time site monitoring as an integral part of the system design and operation. The monitoring data must be continually fused into the PA model through model inversion and parameter estimation. Model calculations will in turn guide the design of optimal monitoring and carbon-injection strategies (e.g., in terms of monitoring techniques, locations, and time intervals). Under the support of Laboratory-Directed Research & Development (LDRD), a late-start LDRD project was initiated in June of Fiscal Year 2010 to explore the concept of an enhanced performance assessment system (EPAS) for carbon sequestration and storage. In spite of the tight time constraints, significant progress has been made on the project: (1) Following the general PA methodology, a preliminary Feature, Event, and Process (FEP) analysis was performed for a hypothetical CS system. Through this FEP analysis, relevant scenarios for CO{sub 2} release were defined. (2) A prototype of EPAS was developed by wrapping an existing multi-phase, multi-component reservoir simulator (TOUGH2) with an uncertainty quantification and optimization code (DAKOTA). (3) For demonstration, a probabilistic PA analysis was successfully performed for a hypothetical CS system based on an existing project in a brine-bearing sandstone. The work lays the foundation for the development of a new generation of PA tools for effective management of CS activities. At a top-level, the work supports energy security and climate change/adaptation by furthering the capability to effectively manage proposed carbon capture and sequestration activities (both research and development as well as operational), and it greatly enhances the technical capability to address this national problem. The next phase of the work will include (1) full capability demonstration of the EPAS, especially for data fusion, carbon storage system optimization, and process optimization of CO{sub 2} injection, and (2) application of the EPAS to actual carbon storage systems.

Wang, Yifeng; Sun, Amy Cha-Tien; McNeish, Jerry A. (Sandia National Laboratories, Livermore, CA); Dewers, Thomas A.; Hadgu, Teklu; Jove-Colon, Carlos F.

2010-09-01T23:59:59.000Z

302

Performance, problems, and expectations of concentrator photovoltaic systems  

DOE Green Energy (OSTI)

The photovoltaic cell or solar cell can be used to convert sunlight directly into electrical energy and its relatively simple construction and absence of moving parts make these devices attractive for terrestrial power generation applications. The primary problem preventing large-scale application is the very high cost of solar cell arrays. For example, the most advanced solar cell is the silicon cell and, currently in the United States, silicon solar arrays cost about $15,000 per peak kilowatt in moderately large quantities. One approach to reducing the cost of solar cell arrays is to concentrate sunlight on the cells and increase the specific output power density of the cells. In this approach, expensive solar cell area is replaced by, hopefully, less expensive reflective or refractive concentrator materials. The United States Energy Research and Development Administration (ERDA) is supporting a program to develop concentrator photovoltaic systems with the primary objective to develop low-cost reliable systems for widespread terrestrial applications. The specific long-term cost goal for these systems is $500 per peak kilowatt by 1982. The most promising solar cell systems for concentrator applications are silicon and galium arsenide and these materials have received the most attention to date in the ERDA program. Design, preliminary performance testing results, and cost estimates for concentrator photovoltaic systems are discussed.

Burgess, E.L.

1977-01-01T23:59:59.000Z

303

Performance Analysis of a Flash-Crowd Management System  

E-Print Network (OSTI)

Dr. Guillaume PierreFlash-crowds are a growing obstacle to the further expansion of the Internet. One of the solutions to this problem is to replicate the most popular documents to different web servers and to redirect client requests to these replicas. In this thesis we present a performance analysis of a flash-crowd management system based on RaDaR. We adjust the architecture of RaDaR to focus more on adaptability rather than scalability, to give the system a better chance against a flash-crowd by using algorithms from another system by the same authors, ACDN. Because existing benchmarks do not show realistic behavior, we first propose our own synthetic benchmark. Finally we use the benchmark tool to replay requests from a trace of an actual flash-crowd. Our results are three-fold: first we show how to dimension a RaDaR-like system. Second, we demonstrate based on a synthetic benchmark as well as a trace-based benchmark that the RaDaR-like system adjusts to a flash-crowd in a timely and efficient fashion. Finally, we identify an inherent instability in the replica placement

Reinoud Esser

2006-01-01T23:59:59.000Z

304

Remedial Action Contacts Directory - 1997  

SciTech Connect

This document, which was prepared for the US Department of Energy (DOE) Office of Environmental Restoration (ER), is a directory of 2628 individuals interested or involved in environmental restoration and/or remedial actions at radioactively contaminated sites. This directory contains a list of mailing addresses and phone numbers of DOE operations, area, site, project, and contractor offices; an index of DOE operations, area, site, project, and contractor office sorted by state; a list of individuals, presented by last name, facsimile number, and e-mail address; an index of affiliations presented alphabetically, with individual contacts appearing below each affiliation name; and an index of foreign contacta sorted by country and affiliation. This document was generated from the Remedial Action Contacts Database, which is maintained by the Remedial Action Program Information Center (RAPIC).

1997-05-01T23:59:59.000Z

305

Salmon Site Remedial Investigation Report, Exhibit 5  

Science Conference Proceedings (OSTI)

This Salmon Site Remedial Investigation Report provides the results of activities initiated by the U.S. Department of Energy (DOE) to determine if contamination at the Salmon Site poses a current or future risk to human health and the environment. These results were used to develop and evaluate a range of risk-based remedial alternatives. Located in Lamar County, Mississippi, the Salmon Site was used by the U.S. Atomic Energy Commission (predecessor to the DOE) between 1964 and 1970 for two nuclear and two gas explosions conducted deep underground in a salt dome. The testing resulted in the release of radionuclides into the salt dome. During reentry drilling and other site activities, liquid and solid wastes containing radioactivity were generated resulting in surface soil and groundwater contamination. Most of the waste and contaminated soil and water were disposed of in 1993 during site restoration either in the cavities left by the tests or in an injection well. Other radioactive wastes were transported to the Nevada Test Site for disposal. Nonradioactive wastes were disposed of in pits at the site and capped with clean soil and graded. The preliminary investigation showed residual contamination in the Surface Ground Zero mud pits below the water table. Remedial investigations results concluded the contaminant concentrations detected present no significant risk to existing and/or future land users, if surface institutional controls and subsurface restrictions are maintained. Recent sampling results determined no significant contamination in the surface or shallow subsurface. The test cavity resulting from the experiments is contaminated and cannot be economically remediated with existing technologies. The ecological sampling did not detect biological uptake of contaminants in the plants or animals sampled. Based on the current use of the Salmon Site, the following remedial actions were identified to protect both human health and the environment: (1) the installation of a water supply system that will provide potable water to the site and residence in the proximity to the site; (2) continued maintenance of surface institutional controls and subsurface restrictions; and (3) continue to implement the long-term hydrologic monitoring program. The Salmon Site will be relinquished the State of Mississippi as mandated by Public Law 104-201-September 23, 1996, to be used as a demonstration forest/wildlife refuge. Should the land use change in the future and/or monitoring information indicates a change in the site conditions, the DOE will reassess the risk impacts to human health and the environment.

USDOE /NV

1999-09-01T23:59:59.000Z

306

Parallel application-level behavioral attributes for performance and energy management of high-performance computing systems  

Science Conference Proceedings (OSTI)

Run time variability of parallel applications continues to present significant challenges to their performance and energy efficiency in high-performance computing (HPC) systems. When run times are extended and unpredictable, application developers perceive ... Keywords: Performance and energy management, Performance measurement, Run time attributes

Jeffrey J. Evans; Charles E. Lucas

2013-03-01T23:59:59.000Z

307

SPACE4CLOUD: a tool for system performance and costevaluation of cloud systems  

Science Conference Proceedings (OSTI)

Cloud Computing is assuming a relevant role in the world of web applications and web services. Cloud technologies allow to build dynamic systems which are able to adapt their performance to workload fluctuations delegating to the Cloud Provider the intensive ... Keywords: cloud computing, model-driven software development, performance prediction

Davide Franceschelli; Danilo Ardagna; Michele Ciavotta; Elisabetta Di Nitto

2013-04-01T23:59:59.000Z

308

Performance control strategies for oil-fired residential heating systems  

SciTech Connect

Results are reported of a study of control system options which can be used to improve the combustion performance of residential, oil-fired heating equipment. Two basic control modes were considered in this program. The first is service required'' signals in which an indication is provided when the flame quality or heat exchanger cleanliness have degraded to the point that a service call is required. The second control mode is excess-air trim'' in which the burner would essentially tune itself continuously for maximum efficiency. 35 refs., 67 figs., 2 tabs.

Butcher, T.

1990-07-01T23:59:59.000Z

309

Case studies of thermal energy storage (TES) systems: Evaluation and verification of system performance. Final report  

Science Conference Proceedings (OSTI)

We have developed two case studies to review and analyze energy performance of thermal energy storage CMS systems in commercial buildings. Our case studies considered two partial ice storage systems in Northern California. For each case, we compiled historical data on TES design, installation, and operation. This information was further enhanced by data obtained through interviews with the building owners and operators. The performance and historical data of the TES systems and their components were grouped into issues related to design, installation, operation, and maintenance of the systems. Our analysis indicated that (1) almost all problems related to the operation of TES and non-TES systems could be traced back to the design of the system, and (2) the identified problems were not unique to the TES systems. There were as many original problems with ``conventional`` HVAC systems and components as with TES systems. Judging from the problems related to non-TES components identified in these two case studies, it is reasonable to conclude that conventional systems have as many problems as TES systems, but a failure, in a TES system may have a more dramatic impact on thermal comfort and electricity charges. The objective of the designers of the TES systems in the case-study buildings was to design just-the-right-size systems so that both the initial investment and operating costs would be minimized. Given such criteria, a system is typically designed only for normal and steady-state operating conditions-which often precludes due consideration to factors such as maintenance, growth in the needed capacity, ease of the operation, and modularity of the systems. Therefore, it is not surprising to find that these systems, at least initially, did not perform to the design intent and expectation and that they had to go through extended periods of trouble-shooting.

Akbari, H.; Sezgen, O.

1992-01-01T23:59:59.000Z

310

Case studies of thermal energy storage (TES) systems: Evaluation and verification of system performance  

DOE Green Energy (OSTI)

We have developed two case studies to review and analyze energy performance of thermal energy storage CMS systems in commercial buildings. Our case studies considered two partial ice storage systems in Northern California. For each case, we compiled historical data on TES design, installation, and operation. This information was further enhanced by data obtained through interviews with the building owners and operators. The performance and historical data of the TES systems and their components were grouped into issues related to design, installation, operation, and maintenance of the systems. Our analysis indicated that (1) almost all problems related to the operation of TES and non-TES systems could be traced back to the design of the system, and (2) the identified problems were not unique to the TES systems. There were as many original problems with conventional'' HVAC systems and components as with TES systems. Judging from the problems related to non-TES components identified in these two case studies, it is reasonable to conclude that conventional systems have as many problems as TES systems, but a failure, in a TES system may have a more dramatic impact on thermal comfort and electricity charges. The objective of the designers of the TES systems in the case-study buildings was to design just-the-right-size systems so that both the initial investment and operating costs would be minimized. Given such criteria, a system is typically designed only for normal and steady-state operating conditions-which often precludes due consideration to factors such as maintenance, growth in the needed capacity, ease of the operation, and modularity of the systems. Therefore, it is not surprising to find that these systems, at least initially, did not perform to the design intent and expectation and that they had to go through extended periods of trouble-shooting.

Akbari, H.; Sezgen, O.

1992-01-01T23:59:59.000Z

311

Integrated heat pipe-thermal storage system performance evaluation  

SciTech Connect

Performance verification tests of an integrated heat pipe-thermal energy storage system have been conducted. This system is being developed as a part of an Organic Rankine Cycle-Solar Dynamic Power System (ORC-SDPS) receiver for future space stations. The integrated system consists of potassium heat pipe elements that incorporate thermal energy storage (TES) canisters within the vapor space along with an organic fluid (toluene) heater tube used as the condenser region of the heat pipe. During the insolation period of the earth orbit, solar energy is delivered to the surface of the heat pipe elements of the ORC-SDPS receiver and is internally transferred by the potassium vapor for use and storage. Part of the thermal energy is delivered to the heater tube and the balance is stored in the TES units. During the eclipse period of the orbit, the stored energy in the TES units is transferred by the potassium vapor to the toluene heater tube. A developmental heat pipe element was fabricated that employs axial arteries and a distribution wick connecting the wicked TES units and the heater to the solar insolation surface of the heat pipe. Tests were conducted to verify the heat pipe operation and to evaluate the heat pipe/TES units/heater tube operation by interfacing the heater unit to a heat exchanger.

Keddy, E.; Sena, J.T.; Merrigan, M.

1987-01-01T23:59:59.000Z

312

Effectiveness of information systems in supply chain performance: a system dynamics study  

Science Conference Proceedings (OSTI)

Organisations are streamlining their supply chains through successful deployment of Information Technology (IT) to succeed in today's global marketplace. Advances in information and communications technologies have made the availability of ... Keywords: ICT, SCM, automobile industry, automotive supply chains, change management, communications, data accuracy, delivery speed, information systems, information technology tools, process integration, simulation, supply chain management, supply chain performance, system dynamics

Ashish Agarwal; Ravi Shankar; Purnendu Mandal

2006-10-01T23:59:59.000Z

313

COOLING FAN AND SYSTEM PERFORMANCE AND EFFICIENCY IMPROVEMENTS  

Science Conference Proceedings (OSTI)

Upcoming emissions regulations (Tiers 3, 4a and 4b) are imposing significantly higher heat loads on the cooling system than lesser regulated machines. This work was a suite of tasks aimed at reducing the parasitic losses of the cooling system, or improving the design process through six distinct tasks: 1. Develop an axial fan that will provide more airflow, with less input power and less noise. The initial plan was to use Genetic Algorithms to do an automated fan design, incorporating forward sweep for low noise. First and second generation concepts could not meet either performance or sound goals. An experienced turbomachinery designer, using a specialized CFD analysis program has taken over the design and has been able to demonstrate a 5% flow improvement (vs 10% goal) and 10% efficiency improvement (vs 10% goal) using blade twist only. 2. Fan shroud developments, using an 'aeroshroud' concept developed at Michigan State University. Performance testing at Michigan State University showed the design is capable of meeting the goal of a 10% increase in flow, but over a very narrow operating range of fan performance. The goal of 10% increase in fan efficiency was not met. Fan noise was reduced from 0 to 2dB, vs. a goal of 5dB at constant airflow. The narrow range of fan operating conditions affected by the aeroshroud makes this concept unattractive for further development at this time 3. Improved axial fan system modeling is needed to accommodate the numbers of cooling systems to be redesigned to meet lower emissions requirements. A CFD fan system modeling guide has been completed and transferred to design engineers. Current, uncontrolled modeling practices produce flow estimates in some cases within 5% of measured values, and in some cases within 25% of measured values. The techniques in the modeling guide reduced variability to the goal of + 5% for the case under study. 4. Demonstrate the performance and design versatility of a high performance fan. A 'swept blade mixed flow' fan was rapid prototyped from cast aluminum for a performance demonstration on a small construction machine. The fan was mounted directly in place of the conventional fan (relatively close to the engine). The goal was to provide equal airflow at constant fan speed, with 75% of the input power and 5 dB quieter than the conventional fan. The result was a significant loss in flow with the prototype due to its sensitivity to downstream blockage. This sensitivity to downstream blockage affects flow, efficiency, and noise all negatively, and further development was terminated. 5. Develop a high efficiency variable speed fan drive to replace existing slipping clutch style fan drives. The goal for this task was to provide a continuously variable speed fan drive with an efficiency of 95%+ at max speed, and losses no greater than at max speed as the fan speed would vary throughout its entire speed range. The process developed to quantify the fuel savings potential of a variable speed fan drive has produced a simple tool to predict the fuel savings of a variable speed drive, and has sparked significant interest in the use of variable speed fan drive for Tier 3 emissions compliant machines. The proposed dual ratio slipping clutch variable speed fan drive can provide a more efficient system than a conventional single ratio slipping clutch fan drive, but could not meet the established performance goals of this task, so this task was halted in a gate review prior to the start of detailed design. 6. Develop a cooling system air filtration device to allow the use of automotive style high performance heat exchangers currently in off road machines. The goal of this task was to provide a radiator air filtration system that could allow high fin density, louvered radiators to operate in a find dust application with the same resistance to fouling as a current production off-road radiator design. Initial sensitivity testing demonstrated that fan speed has a significant impact on the fouling of radiator cores due to fine dusts, so machines equipped with continuously variabl

Ronald Dupree

2005-07-31T23:59:59.000Z

314

High-performance dehumidifier for solar desiccant cooling systems  

DOE Green Energy (OSTI)

An advanced-design, one-tenth-scale dehumidifier for use in residential solar desiccant-cooling systems has been built and tested. The new dehumidifier was designed using a parallel-passage geometry, where air flows through channels formed by walls coated with fine-ground silica gel desiccant. This concept has a high heat and mass transfer effectiveness and promises to double the coefficient of performance of the desiccant cooling system to 1.1 kW cooling output/kW thermal input. The parallel-passage design was found to have very low pressure drop, typically 20 Pa (.08 in. water) at design conditions. The low fan power required to drive such low pressure drop components indicates that electrical COP's in the range of 8.0 to 8.2 kW cooling output/kW electrical input are possible. Results presented include parametric studies of the effect of conditions such as temperature and humidity and design parameters such as desiccant particle size and channel spacing on dehumidifier performance.

Schlepp, D.

1983-05-01T23:59:59.000Z

315

Remediation plan for fluorescent light fixtures containing polychlorinated biphenyls (PCBs)  

SciTech Connect

This report describes the remedial action to achieve compliance with 29 CFR 1910 Occupational Safety and Health Administration (OSHA) requirements of fluorescent light fixtures containing PCBs at K-25 site. This remedial action is called the Remediation Plan for Fluorescent Light Fixtures Containing PCBs at the K-25 Site (The Plan). The Plan specifically discusses (1) conditions of non-compliance, (2) alternative solutions, (3) recommended solution, (4) remediation plan costs, (5) corrective action, (6) disposal of PCB waste, (7) training, and (8) plan conclusions. The results from inspections by Energy Systems personnel in 2 buildings at K-25 site and statistical extension of this data to 91 selected buildings at the K-25 site indicates that there are approximately 28,000 fluorescent light fixtures containing 47,036 ballasts. Approximately 38,531 contain PCBs and 2,799 of the 38,531 ballasts are leaking PCBs. Review of reportable occurrences at K-25 for the 12 month period of September 1990 through August 1991 shows that Energy Systems personnel reported 69 ballasts leaking PCBs. Each leaking ballast is in non-compliance with 29 CFR 1910 - Table Z-1-A. The age of the K-25 facilities indicate a continued and potential increase in ballasts leaking PCBs. This report considers 4 alternative solutions for dealing with the ballasts leaking PCBs. The advantages and disadvantages of each alternative solution are discussed and ranked using cost of remediation, reduction of health risks, and compliance with OSHA as criteria.

1992-04-30T23:59:59.000Z

316

Effect of System and Air Contaminants on PEMFC Performance and Durability (Presentation)  

DOE Green Energy (OSTI)

This presentation summarizes Effect of System and Air Contaminants on PEMFC Performance and Durability.

Dinh, H.

2010-06-11T23:59:59.000Z

317

The New York Times headquarters daylighting mockup: Monitored performance of the daylighting control system  

E-Print Network (OSTI)

not valid because the daylighting system was not providingperformance of the daylighting control system E.S. Lee ,performance of two daylighting control systems installed in

Lee, Eleanor S.; Selkowitz, Stephen E.

2006-01-01T23:59:59.000Z

318

Remediation of Chicken Processing Wastewater using ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2010 TMS Annual Meeting & Exhibition. Symposium , Materials Processing Fundamentals. Presentation Title, Remediation of...

319

FORMERLY UTILIZED SITES REMEDIAL ACTION PROGRAM ELIMINATION REPORT  

Office of Legacy Management (LM)

,: /A (,) i_ - z ,: /A (,) i_ - z FORMERLY UTILIZED SITES REMEDIAL ACTION PROGRAM ELIMINATION REPORT FOR FORMERLY UTILIZED PORTIONS OF THE WATERTOWN ARSENAL WATERTOWN, MASSACHUSETTS Department of Energy Office of Nuclear Energy Office of Remedial Action and Waste Technology Division of Facility and Site Decotwnissioning Projects CONTENTS INTRODUCTION BACKGROUND Site Function Radiological History and Status ELIMINATION ANALYSIS Findings and Recommendation 6 REFERENCES iii Page 1 1 1 3 4 7 "..*.w..,, -. ._ ..- ". --. AUTHORITY REVIEW WATERTOWN ARSENAL WATERTOWN, MASSACHUSETTS INTRODUCTION The purpose of this review is to present information pertaining to work performed under the sponsorship of the Atomic Energy Commission (AEC) Manhattan Engineer District (MED) and the facts and circum-

320

Thermal performance of residential duct systems in basements  

Science Conference Proceedings (OSTI)

There are many unanswered questions about the typical effects of duct system operation on the infiltration rates and energy usage of single- family residences with HVAC systems in their basements. In this paper, results from preliminary field studies and computer simulations are used to examine the potential for improvements in efficiency of air distribution systems in such houses. The field studies comprise thermal and flow measurements on four houses in Maryland. The houses were found to have significant envelope leakage, duct leakage, and duct conduction losses. Simulations of a basement house, the characteristics of which were chosen from the measured houses, were performed to assess the energy savings potential for basement house. The simulations estimate that a nine percent reduction in space conditioning energy use is obtained by sealing eighty percent of the duct leaks and insulating ducts to an R-value of 0.88 {degree}C{center_dot}m{sup 2}/W (5{degree}F{center_dot}ft{sup 2}{center_dot}h/BTU) where they are exposed in the basement. To determine the maximum possible reduction m energy use, simulations were run with all ducts insulated to 17.6 {degree}C{center_dot}m{sup 2}/W (100 {degree}F{center_dot}ft{sup 2}{center_dot}h/BTU) and with no duct leakage. A reduction of energy use by 14% is obtained by using perfect ducts instead of nominal ducts.

Treidler, B.; Modera, M.

1994-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Transient performance of substation structures and associated grounding systems  

Science Conference Proceedings (OSTI)

When lightning strikes an electric substation, large currents generated by the stroke flow in the above ground structures and grounding system and dissipate in the soil. The electromagnetic fields generated by such high currents may cause damage to equipment and may be dangerous to personnel working nearby. In this paper, the frequency and time domain performance of a substation subjected to a lightning strike is described and discussed. The computed scalar potentials, electric fields, and magnetic fields are presented graphically as a function of spatial coordinates, as a function of time and as a function of both. Two cases are considered. The first case examines the substation grounding system only, while the second case includes an above-ground structure as well. It is believed that the results of the second case have not been published before. A double exponential lightning surge current is injected at one corner of the substation. The response of the grounding system to the frequency domain electromagnetic spectrum of this signal is computed by a frequency domain electromagnetic field analysis software package. The temporal and spatial distributions of the electromagnetic fields inside and near the substation are obtained by an inverse Fourier transformation of all these responses. The presence of a soil with an arbitrary resistivity and permittivity is accurately taken into account. The analysis sheds some new light on the understanding of the effects which take place at the higher frequencies.

Dawalibi, F.P.; Xiong, W.; Ma, J. [Safe Engineering Services and Technologies Ltd., Montreal, Quebec (Canada)

1995-05-01T23:59:59.000Z

322

Remedial investigation report for J-Field, Aberdeen Proving Ground, Maryland. Volume 1: Remedial investigation results  

Science Conference Proceedings (OSTI)

This report presents the results of the remedial investigation (RI) conducted at J-Field in the Edgewood Area of Aberdeen Proving Ground (APG), a U.S. Army installation located in Harford County, Maryland. Since 1917, activities in the Edgewood Area have included the development, manufacture, and testing of chemical agents and munitions and the subsequent destruction of these materials at J-Field by open burning and open detonation. These activities have raised concerns about environmental contamination at J-Field. This RI was conducted by the Environmental Conservation and Restoration Division, Directorate of Safety, Health and Environmental Division of APG, pursuant to requirements outlined under the Comprehensive Environmental Response, Compensation, and Liability Act, as amended (CERCLA). The RI was accomplished according to the procedures developed by the U.S. Environmental Protection Agency (EPA 1988). The RI provides a comprehensive evaluation of the site conditions, nature of contaminants present, extent of contamination, potential release mechanisms and migration pathways, affected populations, and risks to human health and the environment. This information will be used as the basis for the design and implementation of remedial actions to be performed during the remedial action phase, which will follow the feasibility study (FS) for J-Field.

Yuen, C. R.; Martino, L. E.; Biang, R. P.; Chang, Y. S.; Dolak, D.; Van Lonkhuyzen, R. A.; Patton, T. L.; Prasad, S.; Quinn, J.; Rosenblatt, D. H.; Vercellone, J.; Wang, Y. Y.

2000-03-14T23:59:59.000Z

323

Remedial design and remedial action guidance for the Idaho National Engineering Laboratory  

SciTech Connect

The US Department of Energy, Idaho Operations Office (DOE-ID), the US Environmental Protection Agency, Region X (EPA), and the Idaho Department of Health and Welfare (IDHW) have developed this guidance on the remedial design and remedial action (RD/RA) process. This guidance is applicable to activities conducted under the Idaho National Engineering Laboratory (INEL) Federal Facility Agreement and Consent Order (FFA/CO) and Action Plan. The INEL FFA/CO and Action Plan provides the framework for performing environmental restoration according to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The guidance is intended for use by the DOE-ID, the EPA, and the IDHW Waste Area Group (WAG) managers and others involved in the planning and implementation of CERCLA environmental restoration activities. The scope of the guidance includes the RD/RA strategy for INEL environmental restoration projects and the approach to development and review of RD/RA documentation. Chapter 2 discusses the general process, roles and responsibilities, and other elements that define the RD/RA strategy. Chapters 3 through 7 describe the RD/RA documents identified in the FFA/CO and Action Plan. Chapter 8 provides examples of how this guidance can be applied to restoration projects. Appendices are included that provide excerpts from the FFA/CO pertinent to RD/RA (Appendix A), a applicable US Department of Energy (DOE) orders (Appendix B), and an EPA Engineering ``Data Gaps in Remedial Design`` (Appendix C).

1993-10-01T23:59:59.000Z

324

Fuel Cell/Gas Turbine System Performance Studies  

Office of Scientific and Technical Information (OSTI)

METC/C-97/7278 METC/C-97/7278 Title: Fuel Cell/Gas Turbine System Performance STudies Authors: George T. Lee (METC) Frederick A. Sudhoff (METC) Conference: Fuel Cells '96 Review Meeting Conference Location: Morgantown, West Virginia Conference Dates: August 20-21, 1996 Conference Sponsor: U.S. DOE, Morgantown Energy Technology Center Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference

325

Performance Parameters for Grid-Connected PV Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

National Renewable Energy Laboratory National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 B. Marion, J. Adelstein, and K. Boyle National Renewable Energy Laboratory H. Hayden, B. Hammond, T. Fletcher, B. Canada, and D. Narang Arizona Public Service Co. D. Shugar, H. Wenger, A. Kimber, and L. Mitchell PowerLight Corporation G. Rich and T. Townsend First Solar Prepared for the 31 st IEEE Photovoltaics Specialists Conference and Exhibition Lake Buena Vista, Florida January 3-7, 2005 February 2005 * NREL/CP-520-37358 Performance Parameters for Grid-Connected PV Systems

326

Residential Forced Air System Cabinet Leakage and Blower Performance  

SciTech Connect

This project evaluated the air leakage and electric power consumption of Residential HVAC components, with a particular focus on air leakage of furnace cabinets. Laboratory testing of HVAC components indicated that air leakage can be significant and highly variable from unit to unit ? indicating the need for a standard test method and specifying maximum allowable air leakage in California State energy codes. To further this effort, this project provided technical assistance for the development of a national standard for Residential HVAC equipment air leakage. This standard is being developed by ASHRAE and is called"ASHRAE Standard 193P - Method of test for Determining the Air Leakage Rate of HVAC Equipment". The final part of this project evaluated techniques for measurement of furnace blower power consumption. A draft test procedure for power consumption was developed in collaboration with the Canadian General Standards Board: CSA 823"Performance Standard for air handlers in residential space conditioning systems".

Walker, Iain S.; Dickerhoff, Darryl J.; Delp, William W.

2010-03-01T23:59:59.000Z

327

Design of high performance frequency synthesizers in communication systems  

E-Print Network (OSTI)

Frequency synthesizer is a key building block of fully-integrated wireless communication systems. Design of a frequency synthesizer requires the understanding of not only the circuit-level but also of the transceiver system-level considerations. This dissertation presents a full cycle of the synthesizer design procedure starting from the interpretation of standards to the testing and measurement results. A new methodology of interpreting communication standards into low level circuit specifications is developed to clarify how the requirements are calculated. A detailed procedure to determine important design variables is presented incorporating the fundamental theory and non-ideal effects such as phase noise and reference spurs. The design procedure can be easily adopted for different applications. A BiCMOS frequency synthesizer compliant for both wireless local area network (WLAN) 802.11a and 802.11b standards is presented as a design example. The two standards are carefully studied according to the proposed standard interpretation method. In order to satisfy stringent requirements due to the multi-standard architecture, an improved adaptive dual-loop phase-locked loop (PLL) architecture is proposed. The proposed improvements include a new loop filter topology with an active capacitance multiplier and a tunable dead zone circuit. These improvements are crucial for monolithic integration of the synthesizer with no off-chip components. The proposed architecture extends the operation limit of conventional integerN type synthesizers by providing better reference spur rejection and settling time performance while making it more suitable for monolithic integration. It opens a new possibility of using an integer-N architecture for various other communication standards, while maintaining the benefit of the integer-N architecture; an optimal performance in area and power consumption.

Moon, Sung Tae

2005-05-01T23:59:59.000Z

328

Impact assessment and performance targets for lighting and envelope systems  

SciTech Connect

Electric lighting loads and cooling from solar heat gains and from lights are the two largest components of peak demand in commercial buildings. The most cost effective demand side management solutions are generally those that directly reduce or eliminate these loads. Existing technologies can provide modest reductions, however they are typically applied an a piecemeal manner that yields less than optimal results. The full potential of existing technologies will be realized when they are commercially available in an integrated package easily specifiable by architects and engineers. Emerging technologies can also be developed to provide even greater savings and extend the savings over a greater portion of the building floor area. This report assesses achievable energy and peak demand performance in California commercial buildings with technologies available today and in the future. We characterize energy performance over a large range of building envelope and lighting conditions, both through computer simulation models and through case study measured data, and subsequently determine reasonable energy targets if building design were further optimized with integrated systems of current or new technologies. Energy targets are derived from the study after consideration of industry priorities, design constraints, market forces, energy code influence, and the state of current building stock.

Sullivan, R.; Lee, E.S.; Selkowitz, S.

1992-06-01T23:59:59.000Z

329

Improving Building Energy System Performance by Continuous Commissioning  

E-Print Network (OSTI)

The term Continuous Commissioning (CC) was first used by engineers at the Energy Systems Lab (ESL) at Texas A&M University to describe an ongoing process which improves the operation of buildings using measured hourly energy use and environmental data. The first buildings to undergo a continuous commissioning process were in the Texas LoanSTAR program [Liu, et al, 1994, Claridge, et al, 1994]. These buildings had been retrofitted with various energy efficiency improvements, and measured hourly data were available to verify that the retrofits were performing as desired, and to analyze the overall building performance. The ESL engineers, using hourly data, site visits, and ESL-developed software [Liu and Claridge 1995], then worked with the facility engineers to fine-tune the building operation. These efforts were so successful that another 15 to 30% of the annual building energy cost was saved ~ and these were in buildings that supposedly had all cost effective retrofits and operating improvements already implemented [Liu 1996].

Turner, W. D.; Liu, M.; Claridge, D. E.; Haberl, J. S.

1996-01-01T23:59:59.000Z

330

Electronic Performance Support Systems: Comparison Of Types Of Integration Levels On Performance Outcomes.  

E-Print Network (OSTI)

??Selecting appropriate performance improvement interventions is a critical component of a comprehensive model of performance improvement. Intervention selection is an interconnected process involving analysis of (more)

Phillips, Sharon A.

2013-01-01T23:59:59.000Z

331

Radioactive Tank Waste Remediation Focus Area. Technology summary  

SciTech Connect

In February 1991, DOE`s Office of Technology Development created the Underground Storage Tank Integrated Demonstration (UST-ID), to develop technologies for tank remediation. Tank remediation across the DOE Complex has been driven by Federal Facility Compliance Agreements with individual sites. In 1994, the DOE Office of Environmental Management created the High Level Waste Tank Remediation Focus Area (TFA; of which UST-ID is now a part) to better integrate and coordinate tank waste remediation technology development efforts. The mission of both organizations is the same: to focus the development, testing, and evaluation of remediation technologies within a system architecture to characterize, retrieve, treat, concentrate, and dispose of radioactive waste stored in USTs at DOE facilities. The ultimate goal is to provide safe and cost-effective solutions that are acceptable to both the public and regulators. The TFA has focused on four DOE locations: the Hanford Site in Richland, Washington, the Idaho National Engineering Laboratory (INEL) near Idaho Falls, Idaho, the Oak Ridge Reservation in Oak Ridge, Tennessee, and the Savannah River Site (SRS) in Aiken, South Carolina.

NONE

1995-06-01T23:59:59.000Z

332

Historical hydronuclear testing: Characterization and remediation technologies  

SciTech Connect

This report examines the most current literature and information available on characterization and remediation technologies that could be used on the Nevada Test Site (NTS) historical hydronuclear test areas. Historical hydronuclear tests use high explosives and a small amount of plutonium. The explosion scatters plutonium within a contained subsurface environment. There is currently a need to characterize these test areas to determine the spatial extent of plutonium in the subsurface and whether geohydrologic processes are transporting the plutonium away from the event site. Three technologies were identified to assist in the characterization of the sites. These technologies are the Pipe Explorer{trademark}, cone penetrometer, and drilling. If the characterization results indicate that remediation is needed, three remediation technologies were identified that should be appropriate, namely: capping or sealing the surface, in situ grouting, and in situ vitrification. Capping the surface would prevent vertical infiltration of water into the soil column, but would not restrict lateral movement of vadose zone water. Both the in situ grouting and vitrification techniques would attempt to immobilize the radioactive contaminants to restrict or prevent leaching of the radioactive contaminants into the groundwater. In situ grouting uses penetrometers or boreholes to inject the soil below the contaminant zone with low permeability grout. In situ vitrification melts the soil containing contaminants into a solid block. This technique would provide a significantly longer contaminant immobilization, but some research and development would be required to re-engineer existing systems for use at deep soil depths. Currently, equipment can only handle shallow depth vitrification. After existing documentation on the historical hydronuclear tests have been reviewed and the sites have been visited, more specific recommendations will be made.

Shaulis, L.; Wilson, G.; Jacobson, R.

1997-09-01T23:59:59.000Z

333

Summary Protocol: Identification, Characterization, Designation, Remedial  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Summary Protocol: Identification, Characterization, Designation, Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification (January 1986) Summary Protocol: Identification, Characterization, Designation, Remedial Action, Certification (January 1986) More Documents & Publications Supplement No. 1 to the FUSRAP Summary Protocol - Designation/Elimination Protocol Pre-MARSSIM Surveys in a MARSSIM World: Demonstrating How Pre-MARSSIM Radiological Data Demonstrate Protectiveness at Formerly Utilized Sites Remedial Action Program Sites U.S. Department of Energy Guidelines for Residual Radioactive Material at

334

Performance and Transient Behaviour of MGT based Energy Systems  

E-Print Network (OSTI)

After a preliminary overview of the multiplicity of solutions for the set up and operation of energy conversion systems based on micro-gas turbines, this paper outlines the method for performance evaluation under both steady state and transient conditions. The cycle analysis aims at the evaluation of thermal efficiency and energy saving indices under different fuelling conditions and with variably recuperated cycle. The subsequent component matching simulation extends the MGT analysis to the offdesign conditions and it leads to the definition of methods for an efficient fulfilment of variable external loads. Finally, the study of some typical transient developments, of both the full-to-part and the part-tofull load type, introduces to the problem of defining proper fuel control laws as to prevent excesses in both energy consumption and component stresses and instabilities. 1. FOREWORDS The micro-gas turbine based energy conversion systems represent one of the most recently developed devices for power generation also for cogeneration application. The set up of an efficient MGT based power plant usually exploits the well established manufacturers experience in the field of industrial gas turbines but also requires specifically studies to be addressed to the specific problems involving the smallscale

R. Tuccillo

2005-01-01T23:59:59.000Z

335

Performance and Improvements of the ATLAS Jet Trigger System  

E-Print Network (OSTI)

At the harsh conditions of the LHC, with proton bunches colliding every 50 ns and up to 40 pp interactions per bunch crossing, the ATLAS trigger system has to be flexible to maintaining an unbiased efficiency for a wide variety of physics studies while providing a fast rejection of non-interesting events. Jets are the most commonly produced objects at the LHC, essential for many physics measurements that range from precise QCD studies to searches for New Physics beyond the Standard Model, or even unexpected physics signals. The ATLAS jet trigger is the primary mean for selecting events with high pT jets and its good performance is fundamental to achieve the physics goals of ATLAS. The ATLAS trigger system is divided in three levels, the first one (L1) being hardware based, with a 2 ?s latency, and the two following ones (called collectively High Level Triggers or HLT) being softwared based with larger processing times. It was designed to work in a Region of Interest (RoI) based approach, where the second lev...

Conde Muino, P; The ATLAS collaboration

2012-01-01T23:59:59.000Z

336

Residential Forced Air System Cabinet Leakage and Blower Performance  

E-Print Network (OSTI)

inResidentialSpaceConditioning Systems. Canadianin residential space conditioning systems. Keywords:in residential space conditioning systems. This standard

Walker, Iain S.

2010-01-01T23:59:59.000Z

337

Advanced high performance steam systems for industrial cogeneration: Final report  

SciTech Connect

Advanced steam conditions of 1500/sup 0/F and 1500 psig have been shown to offer a major positive economic impact and a dramatic improvement in cogeneration system performance. In a back pressure steam turbine system, electricity production increases by 80%, and the return on investment improves by 60%. For a 35% extraction turbine, the electricity production increases 28% and the return increases by 34%. Designs of a 1500/sup 0/F modular steam generator and two sizes of matching steam turbines have been completed. The steam generator module uses all Alloy 800 tubes except for two superheater rows of Inconel 617. Its design is based on current production Alloy 800 once-through steam generators currently being introduced into cogeneration combined cycles. A test loop is currently evaluating candidate steam generator tube materials and steam turbine materials at 1500/sup 0/F and 1500 psig. To date, 4000 hours of operation of this loop have been accumulated. The candidate metals after operation in 1500/sup 0/F and 1500 psig steam showed no surface distress. Trade-off studies have been completed on the high temperature steam turbine. Tangential, radial, and axial turbine configurations have been designed and evaluated. The stress analyses of the 1500/sup 0/F steam turbines show that the machine can be operated at 1500/sup 0/F and 1500 psig for over ten years without component replacement when using rotor hub cooling to maintain disk bore temperatures in the 900/sup 0/F range. When applied in back pressure steam, extraction steam, and combined cycle systems the ''1500/sup 0/F steam technology building blocks'' provide full coverage of industrial cogeneration from 4 MW to 25 MW in a single gas turbine and steam turbine installation. A twelve-inch diameter tangential flow turbine has also been designed which is optimum in the 1 to 3 MW power range.

Duffy, T.E.; Schneider, P.H.; Campbell, A.H.; Evensen, O.E.

1987-01-01T23:59:59.000Z

338

Soil & Groundwater Remediation | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Soil & Groundwater Soil & Groundwater Remediation Soil & Groundwater Remediation Soil & Groundwater Remediation The U.S. Department of Energy (DOE) manages the largest groundwater and soil remediation effort in the world. The inventory at the DOE sites includes 6.5 trillion liters of contaminated groundwater, an amount equal to about four times the daily U.S. water consumption, and 40 million cubic meters of soil and debris contaminated with radionuclides, metals, and organics. The Office of Groundwater and Soil Remediation is working with DOE site managers around the country regarding specific technical issues. At the large sites such as Hanford, Savannah River, and Oak Ridge, the Office of Groundwater and Soil Remediation has conducted research and demonstration projects to test new technologies and remediation

339

Uranium Mill Tailings Remedial Action Project surface project management plan  

SciTech Connect

This Project Management Plan describes the planning, systems, and organization that shall be used to manage the Uranium Mill Tailings Remedial Action Project (UMTRA). US DOE is authorized to stabilize and control surface tailings and ground water contamination at 24 inactive uranium processing sites and associated vicinity properties containing uranium mill tailings and related residual radioactive materials.

Not Available

1994-09-01T23:59:59.000Z

340

Transportation, Aging and Disposal Canister System Performance Specification: Revision 1  

Energy.gov (U.S. Department of Energy (DOE))

This document provides specifications for selected system components of the Transportation, Aging and Disposal (TAD) canister-based system.

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Distribution System Voltage Performance Analysis for High-Penetration Photovoltaics  

DOE Green Energy (OSTI)

This report examines the performance of commonly used distribution voltage regulation methods under reverse power flow.

Liu, E.; Bebic, J.

2008-02-01T23:59:59.000Z

342

Selection of a computer code for Hanford low-level waste engineered-system performance assessment. Revision 1  

Science Conference Proceedings (OSTI)

Planned performance assessments for the proposed disposal of low-activity waste (LAW) glass produced from remediation of wastes stored in underground tanks at Hanford, Washington will require calculations of radionuclide release rates from the subsurface disposal facility. These calculations will be done with the aid of computer codes. The available computer codes with suitable capabilities at the time Revision 0 of this document was prepared were ranked in terms of the feature sets implemented in the code that match a set of physical, chemical, numerical, and functional capabilities needed to assess release rates from the engineered system. The needed capabilities were identified from an analysis of the important physical and chemical processes expected to affect LAW glass corrosion and the mobility of radionuclides. This analysis was repeated in this report but updated to include additional processes that have been found to be important since Revision 0 was issued and to include additional codes that have been released. The highest ranked computer code was found to be the STORM code developed at PNNL for the US Department of Energy for evaluation of arid land disposal sites.

McGrail, B.P.; Bacon, D.H.

1998-02-01T23:59:59.000Z

343

Railplug Ignition System for Enhanced Engine Performance and Reduced Maintenance  

SciTech Connect

This Final Technical Report discusses the progress that was made on the experimental and numerical tasks over the duration of this project. The primary objectives of the project were to (1) develop an improved understanding of the spark ignition process, and (2) develop the railplug as an improved ignitor for large bore stationary natural gas engines. We performed fundamental experiments on the physical processes occurring during spark ignition and used the results from these experiments to aid our development of the most complete model of the spark ignition process ever devised. The elements in this model include (1) the dynamic response of the ignition circuit, (2) a chemical kinetics mechanism that is suitable for the reactions that occur in the plasma, (3) conventional flame propagation kinetics, and (4) a multi-dimensional formulation so that bulk flow through the spark gap can be incorporated. This model (i.e., a Fortran code that can be used as a subroutine within an engine modeling code such as KIVA) can be obtained from Prof. Ron Matthews at rdmatt{at}mail.utexas.edu or Prof. DK Ezekoye at dezekoye{at}mail.utexas.edu. Fundamental experiments, engine experiments, and modeling tasks were used to help develop the railplug as a new ignitor for large bore natural gas engines. As the result of these studies, we developed a railplug that could extend the Lean Stability Limit (LSL) of an engine operating at full load on natural gas from {phi} = 0.59 for operation on spark plugs down to {phi} = 0.53 using railplugs with the same delivered energy (0.7 J). However, this delivered energy would rapidly wear out the spark plug. For a conventional delivered energy (<0.05 J), the LSL is {phi} = 0.63 for a spark plug. Further, using a permanent magnet to aid the plasma movement, the LSL was extended to {phi} = 0.54 for a railplug with a delivered energy of only 0.15 J/shot, a typical discharge energy for commercial capacitive discharge ignition systems. Here, it should be noted that railplugs and the associated ignition circuit should not cost much more than a conventional spark ignition system. Additionally, it is believed that the railplug performance can be further improved via continued research and development.

DK Ezekoye; Matt Hall; Ron Matthews

2005-08-01T23:59:59.000Z

344

EA-1219: Hoe Creek Underground Coal Gasification Test Site Remediation, Campbell County, Wyoming  

Energy.gov (U.S. Department of Energy (DOE))

This EA evaluates the environmental impacts for the proposed Hoe Creek Underground Coal Gasification Test Site Remediation that would be performed at the Hoe Creek site in Campbell County, Wyoming.

345

Coal-fired high performance power generating system  

SciTech Connect

The goals of the program are to develop a coal-fired high performance power generation system (HIPPS) by the year 2000 that is capable of > 47% thermal efficiency; NO[sub x] SO [sub x] and Particulates < 25% NSPS; Cost of electricity 10% lower; coal > 65% of heat input and all solid wastes benign. In order to achieve these goals our team has outlined a research plan based on an optimized analysis of a 250 MW[sub e] combined cycle system applicable to both frame type and aeroderivative gas turbines. Under the constraints of the cycle analysis we have designed a high temperature advanced furnace (HITAF) which integrates several combustor and air heater designs with appropriate ash management procedures. Most of this report discusses the details of work on these components, and the R D Plan for future work. The discussion of the combustor designs illustrates how detailed modeling can be an effective tool to estimate NO[sub x] production, minimum burnout lengths, combustion temperatures and even particulate impact on the combustor walls. When our model is applied to the long flame concept it indicates that fuel bound nitrogen will limit the range of coals that can use this approach. For high nitrogen coals a rapid mixing, rich-lean, deep staging combustor will be necessary. The air heater design has evolved into two segments: a convective heat exchanger downstream of the combustion process; a radiant panel heat exchanger, located in the combustor walls; The relative amount of heat transferred either radiatively or convectively will depend on the combustor type and the ash properties.

1992-07-01T23:59:59.000Z

346

Program management plan for the Molten Salt Reactor Experiment Remediation Project at Oak Ridge National Laboratory, Oak Ridge, Tennessee  

SciTech Connect

The primary mission of the Molten Salt Reactor Experiment (MSRE) Remediation Project is to effectively implement the risk-reduction strategies and technical plans to stabilize and prevent further migration of uranium within the MSRE facility, remove the uranium and fuel salts from the system, and dispose of the fuel and flush salts by storage in appropriate depositories to bring the facility to a surveillance and maintenance condition before decontamination and decommissioning. This Project Management Plan (PMP) for the MSRE Remediation Project details project purpose; technical objectives, milestones, and cost objectives; work plan; work breakdown structure (WBS); schedule; management organization and responsibilities; project management performance measurement planning, and control; conduct of operations; configuration management; environmental, safety, and health compliance; quality assurance; operational readiness reviews; and training.

NONE

1996-09-01T23:59:59.000Z

347

Status report: Fernald site remediation  

Science Conference Proceedings (OSTI)

The Fernald site is rapidly transitioning from a Remedial Investigation/ Feasibility Study (RI/FS) site to one where design and construction of the remedies dominates. Fernald is one of the first sites in the Department of Energy (DOE) complex to accomplish this task and real physical progress is being made in moving the five operable units through the CERCLA process. Two of the required Records of Decision (ROD) are in hand and all five operable units will have received their RODs (IROD for OU3) by the end of 1995. Pre-design investigations, design work or construction are now in progress on the operable units. The lessons learned from the work done to date include implementing innovations in the RI and FS process as well as effective use of Removal Actions to begin the actual site remediation. Also, forging close working relationships with the Federal and State Regulators, citizens action groups and the Fernald Citizens Task Force has helped move the program forward. The Fernald successes have been achieved by close coordination and cooperation among all groups working on the projects and by application of innovative technologies within the decision making process.

Craig, J.R. Jr. [USDOE Fernald Field Office, OH (United States); Saric, J.A. [Environmental Protection Agency, Washington, DC (United States); Schneider, T. [Ohio State Environmental Protection Agency, Columbus, OH (United States); Yates, M.K. [Fernald Environmental Restoration Management Corp., Cincinnati, OH (United States)

1995-01-30T23:59:59.000Z

348

Dynamic Thermal Management for High-Performance Storage Systems  

Science Conference Proceedings (OSTI)

Thermal-aware design of disk drives is important because high temperatures can cause reliability problems. Dynamic Thermal Management (DTM) techniques have been proposed to operate the disk at the average case temperature, rather than at the worse case by modulating the activities to avoid thermal emergencies. The thermal emergencies can be caused by unexpected events, such as fan-breaks, increased inlet air temperature, etc. One of the DTM techniques is a delay-based approach that adjusts the disk seek activities, cooling down the disk drives. Even if such a DTM approach could overcome thermal emergencies without stopping disk activity, it suffers from long delays when servicing the requests. Thus, in this chapter, we investigate the possibility of using a multispeed disk-drive (called dynamic rotations per minute (DRPM)) that dynamically modulates the rotational speed of the platter for implementing the DTM technique. Using a detailed performance and thermal simulator of a storage system, we evaluate two possible DTM policies (- time-based and watermark-based) with a DRPM disk-drive and observe that dynamic RPM modulation is effective in avoiding thermal emergencies. However, we find that the time taken to transition between different rotational speeds of the disk is critical for the effectiveness of the DRPM based DTM techniques.

Kim, Youngjae [ORNL; Gurumurthi, Dr Sudhanva [University of Virginia; Sivasubramaniam, Anand [Pennsylvania State University

2012-01-01T23:59:59.000Z

349

Concentration system performance degradation in the aftermath of Mount Pinatubo  

Science Conference Proceedings (OSTI)

Major volcanic eruptions occur every few years, but most have little effect on solar radiation or climate. However, in the last ten years two volcanoes have decreased solar radiation and influenced weather at a level that might be expected at the frequency of about once a century. The Mexican volcano El Chichon and the Philippine volcano Mount Pinatubo put 6 and 20 million metric tons of SO{sub 2} in the stratosphere, respectively. SO{sub 2} is converted into H{sub 2}SO{sub 4}, which mixes with water to produce aerosol. Since there is no weather in the stratosphere and the aerosol is small, these aerosol particles remain suspended until coagulation and sedimentation bring them to the troposphere where they are removed by normal wet and dry deposition processes. The extinction in the direct solar irradiance from El Chichon was found to peak during the winter of 1983 at about 11% for northern, mid latitudes. Mount Pinatubo`s peak extinction during 1992 was about 15%. Data from four northern, mid-latitude sites are examined to compare the direct consequences of the volcano`s eruption on the performance of concentrating solar energy systems and the indirect effects that may be associated with Mount Pinatubo`s perturbation of the weather.

Michalsky, J.J.; Perez, R.; Seals, R. [State Univ. of New York, Albany, NY (United States). Atmospheric Sciences Research Center; Ineichen, P. [Geneva Univ. (Switzerland). Groupe de Physique Appliquee

1993-11-01T23:59:59.000Z

350

Residential passive solar systems: regional sensitivity to system performance costs, and alternative prices  

DOE Green Energy (OSTI)

The economic potential of two passive space heating configurations are analyzed. These are a masonry thermal storage wall (Trombe) and a direct gain system - both with night insulation. A standard tract home design for each of the two passive systems is being used throughout the analysis to allow interregional comparisons. The economic performance of these two systems is evaluated on a regional basis (223 locations) throughout the United States. For each of the two conventional energy types considered (electricity and natural gas), sensitivity analysis is conducted to determine the impact of alternative fuel price escalation rates and solar costs upon feasibility of the two solar systems. Cost goals for solar system prices are established under one set of future fuel prices and stated economic conditions. (MOW)

Kirschner, C.; Ben-David, S.; Roach, F.

1979-01-01T23:59:59.000Z

351

Predicting Performance Impact of DVFS for Realistic Memory Systems  

Science Conference Proceedings (OSTI)

Dynamic voltage and frequency scaling (DVFS) can make modern processors more power and energy efficient if we can accurately predict the effect of frequency scaling on processor performance. State-of-the-art DVFS performance predictors, however, fail ...

Rustam Miftakhutdinov; Eiman Ebrahimi; Yale N. Patt

2012-12-01T23:59:59.000Z

352

Power and performance analysis of GPU-accelerated systems  

Science Conference Proceedings (OSTI)

Graphics processing units (GPUs) provide significant improvements in performance and performance-per-watt as compared to traditional multicore CPUs. This energy-efficiency of GPUs has facilitated the use of GPUs in many application domains. Albeit energy ...

Yuki Abe; Hiroshi Sasaki; Martin Peres; Koji Inoue; Kazuaki Murakami; Shinpei Kato

2012-10-01T23:59:59.000Z

353

Assessing the performance of human-automation collaborative planning systems  

E-Print Network (OSTI)

Planning and Resource Allocation (P/RA) Human Supervisory Control (HSC) systems utilize the capabilities of both human operators and automated planning algorithms to schedule tasks for complex systems. In these systems, ...

Ryan, Jason C. (Jason Christopher)

2011-01-01T23:59:59.000Z

354

Solar domestic hot water system inspection and performance evaluation handbook  

DOE Green Energy (OSTI)

A reference source and procedures are provided to a solar technician for inspecting a solar domestic hot water system after installation and for troubleshooting the system during a maintenance call. It covers six generic DHW systems and is designed to aid the user in identifying a system type, diagnosing a system's problem, and then pinpointing and evaluating specific component problems. A large amount of system design and installation information is also included.

Not Available

1981-10-01T23:59:59.000Z

355

32kg: performance systems for a post-digital age  

Science Conference Proceedings (OSTI)

Why is a seemingly mundane issue such as airline baggage allowance of great significance in regards to the performance practice of electronic music? This paper discusses how a performance practice has evolved that seeks to question the binary and corporate ... Keywords: DIY, bastardisation, dirty electronics, eBay, live electronics, modular, performance, portability, post-digital, punktronics

John Richards

2006-06-01T23:59:59.000Z

356

Isolation points: Creating performance-robust enterprise systems  

Science Conference Proceedings (OSTI)

This article explores a performance isolation-based approach to creating robust distributed applications. For each application, the approach is to understand the performance dependencies that pervade it and then impose constraints on the possible spread ... Keywords: Autonomic computing, dynamic behavior, performance isolation

Mohamed S. Mansour; Karsten Schwan; Sameh Abdelaziz

2009-05-01T23:59:59.000Z

357

Improve Chilled Water System Performance, Software Tools for Industry, Industrial Technologies Program (ITP) (Fact Sheet)  

SciTech Connect

This fact sheet describes how the Industrial Technologies Program Chilled Water System Analysis Tool (CWSAT) can help optimize the performance of of industrial chilled water systems.

Not Available

2008-12-01T23:59:59.000Z

358

A Study of Target Frequency Bond for Frequency Control Performance Score Calculations in an Isolated System.  

E-Print Network (OSTI)

??Power system frequency is one of the key performance indices of system operation. Abnormal frequency deviations would incur negative impacts to power equipments and service (more)

Lee, Hung-hsi

2010-01-01T23:59:59.000Z

359

Plant-Wide Performance and Cost Analysis of Ion Transport Membrane-Based Oxy-Combustion Power Generation Systems  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) in conjunction with Air Products and Chemicals, Inc., (AP) and WorleyParsons, Inc. (WP) has reviewed and modeled oxy-combustion, a method of burning coal using oxygen rather than air to facilitate the separation, capture, and remediation of carbon by producing a flue gas stream more concentrated in carbon dioxide (CO2). This report presents modeling results for oxy-combustion systems using two different oxygen separation techniques: traditional ...

2013-12-03T23:59:59.000Z

360

Investigating Operating System Noise in Extreme-Scale High-Performance Computing Systems using Simulation  

SciTech Connect

Hardware/software co-design for future-generation high-performance computing (HPC) systems aims at closing the gap between the peak capabilities of the hardware and the performance realized by applications (application-architecture performance gap). Performance profiling of architectures and applications is a crucial part of this iterative process. The work in this paper focuses on operating system (OS) noise as an additional factor to be considered for co-design. It represents the first step in including OS noise in HPC hardware/software co-design by adding a noise injection feature to an existing simulation-based co-design toolkit. It reuses an existing abstraction for OS noise with frequency (periodic recurrence) and period (duration of each occurrence) to enhance the processor model of the Extreme-scale Simulator (xSim) with synchronized and random OS noise simulation. The results demonstrate this capability by evaluating the impact of OS noise on MPI_Bcast() and MPI_Reduce() in a simulated future-generation HPC system with 2,097,152 compute nodes.

Engelmann, Christian [ORNL

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Performance analysis of a framed ALOHA system with diversity frequency hopping  

Science Conference Proceedings (OSTI)

In this paper, we study the performance of a framed ALOHA system that employs slow frequency-hopping techniques. A new strategy that employs diversity transmission (multiple frequency-hopping) techniques to enhance the performance of a framed ALOHA system ...

In-Hang Chung; Ming-Ching Yen

2006-08-01T23:59:59.000Z

362

Procedure for Measuring and Reporting the Performance of Photovoltaic Systems in Buildings  

SciTech Connect

This procedure provides a standard method for measuring and characterizing the long-term energy performance of photovoltaic (PV) systems in buildings and the resulting implications to the building's energy use. The performance metrics determined here may be compared against benchmarks for evaluating system performance and verifying that performance targets have been achieved. Uses may include comparison of performance with the design intent; comparison with other PV systems in buildings; economic analysis of PV systems in buildings; and the establishment of long-term performance records that enable maintenance staff to monitor trends in energy performance.

Pless, S.; Deru, M.; Torcellini, P.; Hayter, S.

2005-10-01T23:59:59.000Z

363

Procedure for Measuring and Reporting the Performance of Photovoltaic Systems in Buildings  

DOE Green Energy (OSTI)

This procedure provides a standard method for measuring and characterizing the long-term energy performance of photovoltaic (PV) systems in buildings and the resulting implications to the building's energy use. The performance metrics determined here may be compared against benchmarks for evaluating system performance and verifying that performance targets have been achieved. Uses may include comparison of performance with the design intent; comparison with other PV systems in buildings; economic analysis of PV systems in buildings; and the establishment of long-term performance records that enable maintenance staff to monitor trends in energy performance.

Pless, S.; Deru, M.; Torcellini, P.; Hayter, S.

2005-10-01T23:59:59.000Z

364

Performance measures framework for unmanned systems (PerMFUS): models for contextual metrics  

Science Conference Proceedings (OSTI)

In the development of the Performance Measures Framework for Unmanned Systems (PerMFUS), we have established a multiple-axis performance metrics model for the unmanned systems (UMS). This model characterizes the UMS performance requirements by the missions ... Keywords: ALFUS, HSI, UMS, autonomy, collaboration, communication, contextual autonomy, contextual metrics, energy, environment, goal, human-system interaction, measure, metrics, mission, mobility, perception, performance, power, robot, sensing, task, terminology, test, unmanned system

Hui-Min Huang; Elena Messina; Adam Jacoff; Robert Wade; Michael McNair

2010-09-01T23:59:59.000Z

365

Effects of position and number of relevant documents retrieved on users' evaluations of system performance  

Science Conference Proceedings (OSTI)

Information retrieval research has demonstrated that system performance does not always correlate positively with user performance, and that users often assign positive evaluation scores to search systems even when they are unable to complete tasks successfully. ... Keywords: Search performance, precision, presentation of search results, ranking, satisfaction, user evaluation of performance

Diane Kelly; Xin Fu; Chirag Shah

2010-05-01T23:59:59.000Z

366

Case Studies Comparing System Advisor Model (SAM) Results to Real Performance Data: Preprint  

SciTech Connect

NREL has completed a series of detailed case studies comparing the simulations of the System Advisor Model (SAM) and measured performance data or published performance expectations. These case studies compare PV measured performance data with simulated performance data using appropriate weather data. The measured data sets were primarily taken from NREL onsite PV systems and weather monitoring stations.

Blair, N.; Dobos, A.; Sather, N.

2012-06-01T23:59:59.000Z

367

X-701B Groundwater Remedy Portsmouth Ohio  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

X-701B Groundwater Remediation X-701B Groundwater Remediation ETR Report Date: December 2008 ETR-20 United States Department of Energy Office of Environmental Management (DOE-EM) External Technical Review of the X-701B Groundwater Remedy, Portsmouth, Ohio Why DOE-EM Did This Review The Department of Energy (DOE) Portsmouth Paducah Project Office (PPPO) has responsibility for remediation of the X-701B ground water plume with the key contaminant of trichloroethene (TCE). The remedy has been divided into four phases: Phase I- Initial Source Area Treatment, Phase II-Expanded Source Area Treatment, Phase III-Evaluation and Reporting, and Phase IV- Downgradient Remediation and Confirmation of Source Area Treatment. Phase II treatment has injected

368

Experimental and Numerical Investigations of Soil Desiccation for Vadose Zone Remediation: Report for Fiscal Year 2007  

SciTech Connect

Apart from source excavation, the options available for the remediation of vadose zone metal and radionuclide contaminants beyond the practical excavation depth (0 to 15 m) are quite limited. Of the available technologies, very few are applicable to the deep vadose zone with the top-ranked candidate being soil desiccation. An expert panel review of the work on infiltration control and supplemental technologies identified a number of knowledge gaps that would need to be overcome before soil desiccation could be deployed. The report documents some of the research conducted in the last year to fill these knowledge gaps. This work included 1) performing intermediate-scale laboratory flow cell experiments to demonstrate the desiccation process, 2) implementing a scalable version of Subsurface Transport Over Multiple PhasesWater-Air-Energy (STOMP-WAE), and 3) performing numerical experiments to identify the factors controlling the performance of a desiccation system.

Ward, Andy L.; Oostrom, Mart; Bacon, Diana H.

2008-02-04T23:59:59.000Z

369

Field Test and Performance Verification: Integrated Active Desiccant Rooftop Hybrid System Installed in a School - Final Report: Phase 4A  

SciTech Connect

This report summarizes the results of a field verification pilot site investigation that involved the installation of a hybrid integrated active desiccant/vapor-compression rooftop heating, ventilation, and air-conditioning (HVAC) unit at an elementary school in the Atlanta Georgia area. For years, the school had experienced serious humidity and indoor air quality (IAQ) problems that had resulted in occupant complaints and microbial (mold) remediation. The outdoor air louvers of the original HVAC units had been closed in an attempt to improve humidity control within the space. The existing vapor compression variable air volume system was replaced by the integrated active desiccant rooftop (IADR) system that was described in detail in an Oak Ridge National Laboratory (ORNL) report published in 2004 (Fischer and Sand 2004). The IADR system and all space conditions have been monitored remotely for more than a year. The hybrid system was able to maintain both the space temperature and humidity as desired while delivering the outdoor air ventilation rate required by American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 62. The performance level of the IADR unit and the overall system energy efficiency was measured and found to be very high. A comprehensive IAQ investigation was completed by the Georgia Tech Research Institute before and after the system retrofit. Before-and-after data resulting from this investigation confirmed a significant improvement in IAQ, humidity control, and occupant comfort. These observations were reported by building occupants and are echoed in a letter to ORNL from the school district energy manager. The IADR system was easily retrofitted in place of the original rooftop system using a custom curb adapter. All work was completed in-house by the school's maintenance staff over one weekend. A subsequent cost analysis completed for the school district by the design engineer of record concluded that the IADR system being investigated was actually less expensive to install than other less-efficient options, most of which were unable to deliver the required ventilation while maintaining the desired space humidity levels.

Fischer, J

2005-12-21T23:59:59.000Z

370

Energy based performance tuning for large scale high performance computing systems  

Science Conference Proceedings (OSTI)

Recognition of the importance of power in the field of High Performance Computing, whether it be as an obstacle, expense or design consideration, has never been greater and more pervasive. In response to this challenge, we exploit the unique power measurement ... Keywords: energy efficiency, frequency scaling, high performance computing (HPC), power

James H. Laros, III; Kevin T. Pedretti; Suzanne M. Kelly; Wei Shu; Courtenay T. Vaughan

2012-03-01T23:59:59.000Z

371

Fuels Performance Group: Center for Transportation Technologies and Systems  

SciTech Connect

Describes R&D and analysis in advanced petroleum-based and non-petroleum-based transportation fuels done by NREL's Fuels Performance Group.

2008-08-01T23:59:59.000Z

372

Fuels Performance Group: Center for Transportation Technologies and Systems  

DOE Green Energy (OSTI)

Describes R&D and analysis in advanced petroleum-based and non-petroleum-based transportation fuels done by NREL's Fuels Performance Group.

Not Available

2008-08-01T23:59:59.000Z

373

Performance of the Community Earth System Model | Argonne Leadership...  

NLE Websites -- All DOE Office Websites (Extended Search)

2011 Name of Publication Source: (SC), 2011 International Conference - High Performance Computing, Networking, Storage and Analysis Type of Publication: conference paper...

374

High Performance Computing Systems Integration, HPC-5: HPC: LANL...  

NLE Websites -- All DOE Office Websites (Extended Search)

Fax: 664-0172 MS B272 Latest in cluster technologies New technology in High Performance Computing and Simulation HPC-5 provides advanced research, development, testing, and...

375

Arsenic Remediation Technologies for Groundwater and Soil  

Science Conference Proceedings (OSTI)

In October 2003, the Electric Power Research Institute (EPRI) released report 1008881, Arsenic Remediation Technologies for Soils and Groundwater. The report provides a review of available technologies for the remediation of arsenic in soils, groundwater, and surface water, primarily at substation sites. In most cases, the technologies reviewed are applicable to a much wider range of projects. In the six years since the publication of that report, the technologies for the remediation of arsenic have cont...

2009-09-22T23:59:59.000Z

376

DOE Selects CH2M Hill Plateau Remediation Company for Plateau Remediation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CH2M Hill Plateau Remediation Company for Plateau CH2M Hill Plateau Remediation Company for Plateau Remediation Contract at its Hanford Site DOE Selects CH2M Hill Plateau Remediation Company for Plateau Remediation Contract at its Hanford Site June 19, 2008 - 1:29pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) today announced that CH2M Hill Plateau Remediation Company has been selected as the plateau remediation contractor for DOE's Hanford Site in southeastern Washington State. The contract is a cost-plus award-fee contract valued at approximately $4.5 billion over ten years (a five-year base period with the option to extend it for another five years). CH2M Hill Plateau Remediation Company is a limited liability company formed by CH2M Hill Constructors, Inc. The team also includes AREVA Federal

377

Geographic Information Systems Applications on an ATM-Based Distributed High Performance Computing System  

E-Print Network (OSTI)

. We present a distributed geographic information system (DGIS) built on a distributed high performance computing environment using a number of software infrastructural building blocks and computational resources interconnected by an ATM-based broadband network. Archiving, access and processing of scientific data are discussed in the context of geographic and environmental applications with special emphasis on the potential for local-area weather, agriculture, soil and land management products. Software technologies such as tiling and caching techniques can be used to optimise storage requirements and response time for applications requiring very large data sets such as multi-channel satellite data. Distributed High Performance Computing hardware technology underpins our proposed system. In particular, we discuss the capabilities of a distributed hardware environment incorporating: high bandwidth communications networks such as Telstra's Experimental Broadband Network (EBN); large capa...

November Hawick

1997-01-01T23:59:59.000Z

378

Integrating automobile multiple intelligent warning systems : performance and policy implications  

E-Print Network (OSTI)

Intelligent driver warning systems can be found in many high-end vehicles on the road today, which will likely rapidly increase as they become standard equipment. However, introducing multiple warning systems into vehicles ...

Ho, Angela Wei Ling

2006-01-01T23:59:59.000Z

379

Transmission System Performance Analysis for High-Penetration Photovoltaics  

DOE Green Energy (OSTI)

This study is an assessment of the potential impact of high levels of penetration of photovoltaic (PV) generation on transmission systems. The effort used stability simulations of a transmission system with different levels of PV generation and load.

Achilles, S.; Schramm, S.; Bebic, J.

2008-02-01T23:59:59.000Z

380

Performance FAQs on BG/Q Systems | Argonne Leadership Computing...  

NLE Websites -- All DOE Office Websites (Extended Search)

Blue GeneQ Versus Blue GeneP MiraCetusVesta IntrepidChallengerSurveyor Decommissioning of BGP Systems and Resources Introducing Challenger Quick Reference Guide System...

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Comparative Performance of Two Reversing Bowen Ratio Measurement Systems  

Science Conference Proceedings (OSTI)

This paper reports on the results of a comparative experiment between two Bowen ratio measurement systems conducted at the Petawawa National Forestry Institute, Chalk River, Ontario, in 1985. Both systems interchange the positions of the ...

J. H. McCaughey; D. W. Mullins; M. Publicover

1987-12-01T23:59:59.000Z

382

Proceedings of the Workshop on Performance Metrics for Intelligent Systems  

Science Conference Proceedings (OSTI)

As software and hardware become increasingly interwoven, new opportunities and challenges emerge. The field of Cyber-Physical Systems (CPS) - hybrid networked cyber and engineered physical elements co-designed to create adaptive and predictive systems ...

Elena Messina; Raj Madhavan

2012-03-01T23:59:59.000Z

383

Electrochemical Arsenic Remediation for Rural Bangladesh  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrochemical Arsenic Remediation for Rural Bangladesh NOTICE Due to the current lapse of federal funding, Berkeley Lab websites are accessible, but may not be updated until...

384

Nuclear facility decommissioning and site remedial actions  

SciTech Connect

The 394 abstracted references on environmental restoration, nuclear facility decommissioning, uranium mill tailings management, and site remedial actions constitute the eleventh in a series of reports prepared annually for the US Department of Energy's Remedial Action Programs. Citations to foreign and domestic literature of all types -- technical reports, progress reports, journal articles, symposia proceedings, theses, books, patents, legislation, and research project descriptions -- have been included. The bibliography contains scientific, technical, economic, regulatory, and legal information pertinent to the US Department of Energy's Remedial Action Programs. Major sections are (1) Surplus Facilities Management Program, (2) Nuclear Facilities Decommissioning, (3) Formerly Utilized Sites Remedial Action Programs, (4) Facilities Contaminated with Naturally Occurring Radionuclides, (5) Uranium Mill Tailings Remedial Action Program, (6) Grand Junction Remedial Action Program, (7) Uranium Mill Tailings Management, (8) Technical Measurements Center, (9) Remedial Action Program, and (10) Environmental Restoration Program. Within these categories, references are arranged alphabetically by first author. Those references having no individual author are listed by corporate affiliation or by publication title. Indexes are provided for author, corporate affiliation, title word, publication description, geographic location, subject category, and keywords. This report is a product of the Remedial Action Program Information Center (RAPIC), which selects and analyzes information on remedial actions and relevant radioactive waste management technologies.

Knox, N.P.; Webb, J.R.; Ferguson, S.D.; Goins, L.F.; Owen, P.T.

1990-09-01T23:59:59.000Z

385

Use of American Lotus in Pond Remediation  

NLE Websites -- All DOE Office Websites (Extended Search)

American Lotus in Pond Remediation Adam S. Riazi, Mathematics Department, Lincoln County High School, WV and Michael G. Ryon, Environmental Sciences Division, Oak Ridge National...

386

Introduction to Green & Sustainable Remediation: Three Approaches  

NLE Websites -- All DOE Office Websites (Extended Search)

TO GREEN & SUSTAINABLE REMEDIATION: THREE APPROACHES Dr. Jerry DiCerbo, Office of Sustainability Support (HS-21) June 2013 What is GSR? * Definitions differ among organizations...

387

Surfactant biocatalyst for remediation of recalcitrant ...  

Surfactant biocatalyst for remediation of recalcitrant organics and heavy metals United States Patent. Patent Number: 7,906,315: Issued: March 15, ...

388

Performance Metrics for Intelligent Systems (PerMIS)  

Science Conference Proceedings (OSTI)

... and partnerships, dissemination of ideas, and future collaborations in an ... measures in various domains, eg,; Intelligent transportation systems; ...

2013-12-06T23:59:59.000Z

389

Fuel cell/gas turbine system performance studies  

SciTech Connect

Because of the synergistic effects (higher efficiencies, lower emissions) of combining a fuel cell and a gas turbine into a power generation system, many potential system configurations were studied. This work is focused on novel power plant systems by combining gas turbines, solid oxide fuel cells, and a high-temperature heat exchanger; these systems are ideal for the distributed power and on- site markets in the 1-5 MW size range.

Lee, G.T.; Sudhoff, F.A.

1996-12-31T23:59:59.000Z

390

PMPS(3): a performance model of parallel systems  

Science Conference Proceedings (OSTI)

In this paper, an open performance model framework PMPS(n) and a realization of this framework PMPS(3), including memory, I/O and network, are presented and used to predict runtime of NPB benchmarks on P4 cluster. The experimental results demonstrates ... Keywords: I/O, convolution methods, parallel, performance model

Chen Yong-ran; Qi Xing-yun; Qian Yue; Dou Wen-hua

2006-09-01T23:59:59.000Z

391

Molecular Dynamics Simulations on High-Performance Reconfigurable Computing Systems  

Science Conference Proceedings (OSTI)

The acceleration of molecular dynamics (MD) simulations using high-performance reconfigurable computing (HPRC) has been much studied. Given the intense competition from multicore and GPUs, there is now a question whether MD on HPRC can be competitive. ... Keywords: FPGA-based coprocessors, application acceleration, bioinformatics, biological sequence alignment, high performance reconfigurable computing

Matt Chiu; Martin C. Herbordt

2010-11-01T23:59:59.000Z

392

Development of a multi-functional scarifier dislodger with an integral pneumatic conveyance retrieval system for single-shell tank remediation. FY93 summary report  

SciTech Connect

The Underground Storage Tank Integrated Demonstration (UST-ID) is evaluating several hydraulic dislodger concepts and retrieval technologies to develop specifications for system that can retrieve wastes from single-shell tanks. Each of the dislodgers will be evaluated sequentially to determine its ability to fracture and dislodge various waste simulants such as salt cake, sludge, and viscous liquid. The retrieval methods will be evaluated to determine their ability to convey this dislodged material from the tank. This report describes on-going research that commenced in FY93 to develop specifications for a scarifier dislodger coupled with a pneumatic conveyance retrieval system. The scarifier development is described in Section 3; pneumatic conveyance development is described in Section 4. Preliminary system specifications are listed in Section 5. FY94 plans are summarized in Section 6.

Bamberger, J.A.; McKinnon, M.A. [Pacific Northwest Lab., Richland, WA (United States); Alberts, D.A.; Steele, D.E. [Quest Integrated, Inc., Kent, WA (United States); Crowe, C.T. [Washington State Univ., Pullman, WA (United States)

1994-10-01T23:59:59.000Z

393

High Performance Commercial Building Systems Clifford C. Federspiel, Luis Villafana  

E-Print Network (OSTI)

for energy and maintenance management. It uses a common database system for all components and an open of California, Berkeley 2 School of Information Management and Systems, University of California, Berkeley ABSTRACT In this paper, we describe the design of a user interface for energy and maintenance systems

394

High Performance Commercial Building Systems California Energy Commission  

E-Print Network (OSTI)

double- skin facade systems. These window strategies involve balancing daylighting and solar heat gains or interior shading systems combined with daylighting controls to re- duce cooling and lighting loads. 1 Systems with Daylighting Controls With Venetian blinds, the modes of operation include tilt angle

395

Inefficient remediation of ground-water pollution  

SciTech Connect

The problem of trying to remove ground-water pollution by pumping and treating are pointed out. Various Superfund sites are discussed briefly. It is pointed out that many chemicals have been discarded in an undocumented manner, and their place in the groundwater is not known. Results of a remedial program to remove perchloroethylene at a concentration of 6132 parts per billion from groundwater in a site in New Jersey showed that with an average extraction rate of 300 gallons per minute from 1978 to 1984 contamination level was lowered below 100 parts per billion. However, after shutdown of pumping the level rose to 12,588 parts per billion in 1988. These results lead the author to propose that the practical solutions for water supplies may be treatment at the time it enters the system for use.

Abelson, P.H.

1990-11-09T23:59:59.000Z

396

System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System (Brochure), Federal Energy Management Program (FEMP)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

System Performance System Performance Measurement Supports Design Recommendations for Solar Ventilation Preheat System The U.S. Department of Energy's (DOE) Federal Energy Management Program (FEMP) sponsored the installation of a data monitoring system to analyze the efficiency and performance of a large solar ventilation preheat (SVP) system. The system was installed at a Federal installation to reduce energy consumption and costs and to help meet Federal energy goals and mandates. SVP systems draw ventilation air in through a perforated metal solar collector with a dark color on the south side of a build-

397

ANN and ANFIS models for performance evaluation of a vertical ground source heat pump system  

Science Conference Proceedings (OSTI)

The aim of this study is to demonstrate the comparison of an artificial neural network (ANN) and an adaptive neuro-fuzzy inference system (ANFIS) for the prediction performance of a vertical ground source heat pump (VGSHP) system. The VGSHP system using ... Keywords: Adaptive neuro-fuzzy inference system, Coefficient of performance, Ground source heat pump, Membership functions, Vertical heat exchanger

Hikmet Esen; Mustafa Inalli

2010-12-01T23:59:59.000Z

398

LARGO hot water system long range thermal performance test report. Addendum  

DOE Green Energy (OSTI)

The test procedure used and the test results obtained during the long range thermal performance tests of the LARGO Solar Hot Water System under natural environmental conditions are presented. Objectives of these tests were to determine the amount of energy collected, the amount of power required for system operation, system efficiency temperature distribution and system performance degradation.

Not Available

1978-11-01T23:59:59.000Z

399

Microarchitecture parameter selection to optimize system performance under process variation  

Science Conference Proceedings (OSTI)

Design variability due to within-die and die-to-die process variations has the potential to significantly reduce the maximum operating frequency and the effective yield of high-performance microprocessors in future process technology generations. This ...

Xiaoyao Liang; David Brooks

2006-11-01T23:59:59.000Z

400

Parameter estimation for performance models of distributed application systems  

Science Conference Proceedings (OSTI)

The performance engineering of distributed applications requires models that capture contention for both hardware and software resources. Layered queueing models have been proposed for modeling distributed applications but they require model parameters ...

Jerome Rolia; Vidar Vetland

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

The Extreme Benchmark Suite : measuring high-performance embedded systems  

E-Print Network (OSTI)

The Extreme Benchmark Suite (XBS) is designed to support performance measurement of highly parallel "extreme" processors, many of which are designed to replace custom hardware implementations. XBS is designed to avoid many ...

Gerding, Steven (Steven Bradley)

2005-01-01T23:59:59.000Z

402

Performance Assessment of an Integrated Cooling/Dehumidification System  

Science Conference Proceedings (OSTI)

This report reviews dehumidification technologies appropriate for residential and commercial building applications with a focus on technologies and system configurations that allow dedicated dehumidification to complement other air conditioning systems, such as direct expansion. One such new technology was tested and is reported on here, the Munters DryCool HD, a small to medium central dehumidifier designed for integration into a ducted air conditioning system. This unit uses both Direct Expansion (DX) ...

2010-11-16T23:59:59.000Z

403

Inactive Tanks Remediation Program strategy and plans for Oak Ridge National Laboratory, Oak Ridge, Tennessee. Environmental Restoration Program  

Science Conference Proceedings (OSTI)

The overall objective of the Inactive Tank Remediation Program is to remediate all LLLW tanks that have been removed fimn service to the extent practicable in accordance with the FFA and CERCLA requirements. Applicable or relevant and appropriate requirements (ARARs) will be addressed in choosing a remediation alternative. Preference will be given to remedies that are highly reliable and provide long-term protection. Efforts will be directed toward permanently and significantly reducing the volume, toxicity, or mobility of hazardous substances, pollutants, and contaminants associated with the tank systems. Where indicated by operational or other restraints, interim measures short of full and complete remediation may be taken to maintain human health and ecological risks at acceptable levels until full remediation can be accomplished.

NONE

1995-06-01T23:59:59.000Z

404

Solar window collection and distribution module system. Final performance report  

SciTech Connect

The construction and monitoring of a solar window collection and distribution system are presented. One complete window module was purchased and assembled, including: the glass, the window frames, sealants, grills, vents and a mechanical damper device. Monitoring of the system operation was limited to measuring inside air temperature, outside air temperature, and circulation temperatures through the window module systems, as well as the actual tinted glass surface temperature. The system has produced a reduction in glare, fading of furniture, and control of solar gains to a building structure.

1985-01-01T23:59:59.000Z

405

Instrumentation for Evaluating PV System Performance Losses from Snow: Preprint  

DOE Green Energy (OSTI)

Describes the use of a pyranometer with a heater and a digital camera to determine losses related to snow for PV systems located at National Renewable Energy Laboratory.

Marion, B.; Rodriguez, J.; Pruett, J.

2009-04-01T23:59:59.000Z

406

Benchmarking and Performance Based Rating System for Commercial...  

NLE Websites -- All DOE Office Websites (Extended Search)

and green building rating systems such as Leadership in Energy and Environment Design (LEED-India) and Green Rating for Integrated Habitat Assessment (GRIHA) have been the prime...

407

Characterizing I/O performance on leadership-class systems |...  

NLE Websites -- All DOE Office Websites (Extended Search)

HPC production applications. Initially run at the IBM Blue Gene systems at the Argonne Leadership Computing Facility, Darshan recently was adapted by Argonne researchers,...

408

Improving Pumping System Performance: A Sourcebook for Industry, Second Edition  

Science Conference Proceedings (OSTI)

Prepared for the DOE Industrial Technologies Program, this sourcebook contains the practical guidelines and information manufacturers need to improve the efficiency of their pumping systems.

Not Available

2006-05-01T23:59:59.000Z

409

Improving Motor and Drive System Performance: A Sourcebook for Industry  

SciTech Connect

This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems

Not Available

2008-09-01T23:59:59.000Z

410

Final Report Northeast Site Area B NAPL Remediation Project  

Office of Legacy Management (LM)

Northeast Site Area B Northeast Site Area B NAPL Remediation Project at the Young - Rainey STAR Center Largo, Pinellas County, Florida April 2007 Office of Legacy Management DOE M/1457 2007 - -L Work Performed Under DOE Contract No. for the U.S. Department of Energy Office of Legacy Management. DE-AC01-02GJ79491 Approved for public release; distribution is unlimited. Office of Legacy Management Office of Legacy Management Office of Legacy Management U.S. Department of Energy This page intentionally left blank DOE-LM/1457-2007 Final Report Northeast Site Area B NAPL Remediation Project at the Young - Rainey STAR Center Largo, Pinellas County, Florida April 2007 Work Performed by S.M. Stoller Corporation under DOE Contract No. DE-AC01-02GJ79491 for the U.S. Department of Energy Office of Legacy Management, Grand Junction, Colorado

411

Power Shape Monitoring System (PSMS), Volume 1: Overview and Performance  

Science Conference Proceedings (OSTI)

Volume 1 provides an overview of the first-generation power shape monitoring system (PSMS) for BWRs, which has been undergoing field testing at the Oyster Creek nuclear plant. The system's functional requirements and its hardware and software are described. The accuracy of the Oyster Creek PSMS is evaluated--specifically, its power prediction capabilities.

1981-02-01T23:59:59.000Z

412

Toward a Performance/Resilience Tool for Hardware/Software Co-Design of High-Performance Computing Systems  

SciTech Connect

xSim is a simulation-based performance investigation toolkit that permits running high-performance computing (HPC) applications in a controlled environment with millions of concurrent execution threads, while observing application performance in a simulated extreme-scale system for hardware/software co-design. The presented work details newly developed features for xSim that permit the injection of MPI process failures, the propagation/detection/notification of such failures within the simulation, and their handling using application-level checkpoint/restart. These new capabilities enable the observation of application behavior and performance under failure within a simulated future-generation HPC system using the most common fault handling technique.

Engelmann, Christian [ORNL] [ORNL; Naughton, III, Thomas J [ORNL

2013-01-01T23:59:59.000Z

413

2010 Remediation Effectiveness Report for the U.S. Department of Energy Oak Ridge Reservation, Oak Ridge, Tennessee - Data and Evaluations  

SciTech Connect

Under the requirements of the Oak Ridge Reservation (ORR) Federal Facility Agreement (FFA) established between the U.S. Department of Energy (DOE), the U.S. Environmental Protection Agency, (EPA) and the Tennessee Department of Environment and Conservation (TDEC) in 1992, all environmental restoration activities on the ORR are performed in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). Since the 1990s, the environmental restoration activities have experienced a gradual shift from characterization to remediation. As this has occurred, it has been determined that the assessment of the individual and cumulative performance of all ORR CERCLA remedial actions (RAs) is most effectively tracked in a single document. The Remediation Effectiveness Report (RER) is an FFA document intended to collate all ORR CERCLA decision requirements, compare pre- and post-remediation conditions at CERCLA sites, and present the results of any required post-decision remediation effectiveness monitoring. First issued in 1997, the RER has been reissued annually to update the performance histories of completed actions and to add descriptions of new CERCLA actions. Monitoring information used in the 2010 RER to assess remedy performance was collected and/or compiled by DOE's Water Resources Restoration Program (WRRP). Only data used to assess performance of completed actions are provided. In addition to collecting CERCLA performance assessment data, the WRRP also collects baseline data to be used to gauge the effectiveness of future actions once implemented. These baseline data are maintained in the Oak Ridge Environmental Information System and will be reported in future RERs, as necessary, once the respective actions are completed. However, when insufficient data exist to assess the impact of the RAs, e.g., when the RA was only recently completed, a preliminary evaluation is made of early indicators of effectiveness at the watershed scale, such as contaminant trends at surface water integration points (IPs). Long-term stewardship (LTS) information used in this report is collected, compiled, and tracked by the WRRP in conjunction with the Bechtel Jacobs Company LLC (BJC) Surveillance and Maintenance (S&M) program, the BJC Radiation Protection Organization at East Tennessee Technology Park (ETTP), and the ETTP Environmental Compliance Program. Additionally, documentation verifying the implementation of administrative land use controls (LUCs) [i.e., property record restrictions, property record notices, zoning notices, and excavation/penetration permit (EPP) program] is also obtained from many sources throughout the fiscal year (FY), including County Register of Deeds offices for property record restrictions and property record notices, City Planning Commission for zoning notices, and BJC project engineers for EPP program verification. Copies of this documentation are obtained by the WRRP and maintained with the project RER files.

Bechtel Jacobs

2010-09-01T23:59:59.000Z

414

Scientific Opportunities for Monitoring of Environmental Remediation Sites (SOMERS)  

SciTech Connect

The US Department of Energy (DOE) is responsible for risk reduction and cleanup of its nuclear weapons complex. DOE maintains the largest cleanup program in the world, currently spanning over a million acres in 13 states. The inventory of contaminated materials includes 90 million gallons of radioactive waste, 6.4 trillion liters of groundwater, and 40 million cubic meters of soil and debris. It is not feasible to completely restore many sites to predisposal conditions. Any contamination left in place will require monitoring, engineering controls and/or land use restrictions to protect human health and environment. Research and development efforts to date have focused on improving characterization and remediation. Yet, monitoring will result in the largest life-cycle costs and will be critical to improving performance and protection. Through an inter-disciplinary effort, DOE is addressing a need to advance monitoring approaches from sole reliance on cost- and labor-intensive point-source monitoring to integrated systems-based approaches such as flux-based approaches and the use of early indicator parameters. Key objectives include identifying current scientific, technical and implementation opportunities and challenges, prioritizing science and technology strategies to meet current needs within the DOE complex for the most challenging environments, and developing an integrated and risk-informed monitoring framework.

Bunn, Amoret L [Pacific Northwest National Laboratory (PNNL); Wellman, Dawn M. [Pacific Northwest National Laboratory (PNNL); Deeb, Rula A [ARCADIS/Malcolm Pirnie; Hawley, Elisabeth L [ARCADIS/Malcolm Pirnie; Truex, Michael J [Pacific Northwest National Laboratory (PNNL); Peterson, Mark J [ORNL; Freshley, Mark D [Pacific Northwest National Laboratory (PNNL); Pierce, Eric M [ORNL; Mccord, John [S.M. Stoller Corporation; Young, Michael H [University of Texas, Austin; Gilmore, Tyler J [Pacific Northwest National Laboratory (PNNL); Miller, Rick [University of Kansas; Miracle, Ann L [Pacific Northwest National Laboratory (PNNL); Kaback, Dawn [AMEC Geomatrix; Eddy-Dilek, Carol [Savannah River National Laboratory (SRNL); Rossabi, Joe [Redox Tech, LLC; Lee, M Hope [Idaho National Laboratory (INL); Bush, Richard [U.S. Department of Energy, Grand Junction, Colorado (USA); Beam, Paul [U. S. Department of Energy, Office of Groundwater and Soil Remediation; Chamberlain, Grover [U. S. Department of Energy, Office of Groundwater and Soil Remediation; Gerdes, Kurt [U. S. Department of Energy, Office of Groundwater and Soil Remediation; Collazo, Yvette [U.S. Department of Energy

2012-01-01T23:59:59.000Z

415

Scientific Opportunities for Monitoring of Environmental Remediation Sites - (SOMERS)  

Science Conference Proceedings (OSTI)

The US Department of Energy (DOE) is responsible for risk reduction and cleanup of its nuclear weapons complex. DOE maintains the largest cleanup program in the world, currently spanning over a million acres in 13 states. The inventory of contaminated materials includes 90 million gallons of radioactive waste, 6.4 trillion liters of groundwater, and 40 million cubic meters of soil and debris. It is not feasible to completely restore many sites to predisposal conditions. Any contamination left in place will require monitoring, engineering controls and/or land use restrictions to protect human health and environment. Research and development efforts to date have focused on improving characterization and remediation. Yet, monitoring will result in the largest life-cycle costs and will be critical to improving performance and protection. Through an inter-disciplinary effort, DOE is addressing a need to advance monitoring approaches from sole reliance on cost- and labor-intensive point-source monitoring to integrated systems-based approaches such as flux-based approaches and the use of early indicator parameters. Key objectives include identifying current scientific, technical and implementation opportunities and challenges, prioritizing science and technology strategies to meet current needs within the DOE complex for the most challenging environments, and developing an integrated and risk-informed monitoring framework.

Bunn, Amoret L.; Wellman, Dawn M.; Deeb, Rula A.; Hawley, Elizabeth L.; Truex, Michael J.; Peterson, Mark; Freshley, Mark D.; Pierce, Eric M.; McCord, John; Young, Michael H.; Gilmore, Tyler J.; Miller, Rick; Miracle, Ann L.; Kaback, Dawn; Eddy-Dilek, Carol; Rossabi, Joe; Lee, Hope; Bush, Richard P.; Beam , Paul; Chamberlain, G. M.; Gerdes, Kurt D.; Collazo, Yvette

2012-03-01T23:59:59.000Z

416

Performance in Planning Smart Systems for the Access Network  

Science Conference Proceedings (OSTI)

Improvements in system technologies continue apace with new developments in software methods arguably outstripping even the breakneck progress in hardware power described by Moores Law. The software developments are timely, ...

D. E. Asumu; J. Mellis

1998-10-01T23:59:59.000Z

417

Residential commissioning to assess envelope and HVAC system performance  

E-Print Network (OSTI)

qualitatively during air-sealing work to assess progresssealing or for separation of the supply and return systems at the airby poor sealing or seal failure during the test. Air leakage

Wray, Craig P.; Sherman, Max H.

2001-01-01T23:59:59.000Z

418

Performance modeling of daylight integrated photosensor-controlled lighting systems  

Science Conference Proceedings (OSTI)

Some building energy codes now require the incorporation of daylight into buildings and automatic photosensor-controlled switching or dimming of the electric lighting system in areas that receive daylight. This paper describes enhancements to the open-source ...

Richard G. Mistrick; Craig A. Casey

2011-12-01T23:59:59.000Z

419

Performance and scalability evaluation of the Ceph parallel file system  

Science Conference Proceedings (OSTI)

Ceph is an emerging open-source parallel distributed file and storage system. By design, Ceph leverages unreliable commodity storage and network hardware, and provides reliability and fault-tolerance via controlled object placement and data replication. ...

Feiyi Wang, Mark Nelson, Sarp Oral, Scott Atchley, Sage Weil, Bradley W. Settlemyer, Blake Caldwell, Jason Hill

2013-11-01T23:59:59.000Z

420

Optical Interconnections within Modern High-performance Computing Systems  

Science Conference Proceedings (OSTI)

Optical technologies are ubiquitous in telecommunications networks and systems, providing multiple wave-length channels of transport at 2.5-10 Gbps data rates over single fiber-optic cables. Market pressures continue to drive the number of wavelength ...

Howard Davidson; Rick Lytel; Nyles Nettleton; Theresa Sze

2000-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

System Advisor Model: Flat Plate Photovoltaic Performance Modeling...  

NLE Websites -- All DOE Office Websites (Extended Search)

in the technology and system design. To be accessible by the financial community, the impact of variations in energy yield must also flow through to financial metrics, such as the...

422

Voting Systems Performance and Test Standards: An Overview  

E-Print Network (OSTI)

). This overview serves as a companion document for understanding and interpreting both Volume I, the performance provisions of the Standards, and Volume II, the testing specifications. Background The program to develop) produced a joint report, Effective Use of Computing Technology in Vote Tallying. This report concluded

Rivest, Ronald L.

423

Toward Codesign in High Performance Computing Systems - 06386705...  

NLE Websites -- All DOE Office Websites (Extended Search)

s f o r t h i s w o r k . 7 . R E F E R E N C E S 1 J . A n g e t a l . High Performance Computing: From Grids and Clouds to Exascale, c h a p t e r E x a s c a l e C o m p u...

424

Agencies plan continued DOE landfill remediation  

NLE Websites -- All DOE Office Websites (Extended Search)

Agencies plan continued DOE landfill remediation Agencies plan continued DOE landfill remediation The U.S. Department of Energy (DOE), Idaho Department of Environmental Quality and U.S. Environmental Protection Agency have released a planning document that specifies how DOE will continue to remediate a landfill containing hazardous and transuranic waste at DOE's Idaho Site located in eastern Idaho. The Phase 1 Remedial Design/Remedial Action Work Plan for Operable Unit 7-13/14 document was issued after the September 2008 Record of Decision (ROD) and implements the retrieval of targeted waste at the Subsurface Disposal Area (SDA) within the Radioactive Waste Management Complex (RWMC). The SDA began receiving waste in 1952 and contains radioactive and chemical waste in approximately 35 acres of disposal pits, trenches and soil vaults.

425

Proposed guidelines for reporting performance of a solar dish/Stirling electric generation system  

DOE Green Energy (OSTI)

Experimental performance data from dish/Stirling system testing can be analyzed to generate a system performance model. An approach to developing an experimentally based performance model of a dish/Stirling system is given. Two methods for analyzing the experimental data are described. To provide information that will permit comparison of dish/Stirling systems, it is necessary to define many of the details involved in calculating system performance data such as the net system output and system solar-to-electric efficiency. This paper describes a set of guidelines for these calculations, based on past experience, especially with the Vanguard dish/Stirling system. Also presented are a set of rating conditions at which a maximum value for system efficiency can be calculated. Comparison between systems of their rated peak solar-to-electric efficiency is made possible when these rating conditions are in common use by manufacturers and testing agencies.

Stine, W.B. [California State Polytechnic Univ., Pomona, CA (US). Dept. of Mechanical Engineering; Powell, M.A. [Sandia National Labs., Albuquerque, NM (US)

1992-12-31T23:59:59.000Z

426

Performance Comparison of Residential Hot Water Systems; Period of Performance: January 30, 2001 through July 29, 2002  

DOE Green Energy (OSTI)

A laboratory test experiment was conducted to measure the energy performance of two different types of water heaters--electric storage tank and demand (tankless)--in two types of plumbing distribution systems--copper piping in a tree configuration and cross-linked polyethylene (PEX) piping in a parallel configuration. Two water-usage patterns were used in the week-long experiments and in the annual simulations: one representing a high-usage home and the other representing a low-usage home. Results of weekly performance testing and annual simulations of electric water-heating systems are presented.

Wiehagen, J.; Sikora, J. L.

2003-03-01T23:59:59.000Z

427

Remediation of Mercury and Industrial Contaminants Applied Field...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Remediation of Mercury and Industrial Contaminants Applied Field Research Initiative (RoMIC-AFRI) Remediation of Mercury and Industrial Contaminants Applied Field Research...

428

SBA Increases Size Standards for Waste Remediation Services ...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Increases Size Standards for Waste Remediation Services & InformationAdmin Support SBA Increases Size Standards for Waste Remediation Services & InformationAdmin Support December...

429

EA-1219: Hoe Creek Underground Coal Gasification Test Site Remediation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9: Hoe Creek Underground Coal Gasification Test Site Remediation, Campbell County, Wyoming EA-1219: Hoe Creek Underground Coal Gasification Test Site Remediation, Campbell County,...

430

EA-1331: Remediation of Subsurface and Groundwater Contamination...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Remediation of Subsurface and Groundwater Contamination at the Rock Springs in situ Oil Shale Retort Site, Sweetwater County, Wyoming EA-1331: Remediation of Subsurface and...

431

Building C-400 Thermal Treatment 90% Remedial Design Report and...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Building C-400 Thermal Treatment 90% Remedial Design Report and Site Investigation Building C-400 Thermal Treatment 90% Remedial Design Report and Site Investigation Full Document...

432

Arsenic Remediation of Bangladesh Drinking Water using Iron-oxide...  

NLE Websites -- All DOE Office Websites (Extended Search)

Arsenic Remediation of Bangladesh Drinking Water using Iron-oxide Coated Coal Ash Title Arsenic Remediation of Bangladesh Drinking Water using Iron-oxide Coated Coal Ash...

433

EIS-0195: Remedial Actions at Operable Unit 4, Fernald Environmental...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

195: Remedial Actions at Operable Unit 4, Fernald Environmental Management Project, Fernald, Ohio EIS-0195: Remedial Actions at Operable Unit 4, Fernald Environmental Management...

434

BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS  

E-Print Network (OSTI)

BLACK-BOX MODELLING OF HVAC SYSTEM: IMPROVING THE PERFORMANCES OF NEURAL NETWORKS Eric FOCK Ile de La Réunion - FRANCE ABSTRACT This paper deals with neural networks modelling of HVAC systems of HVAC system can be modelled using manufacturer design data presented as derived performance maps

Paris-Sud XI, Université de

435

Co-simulation for performance prediction of integrated building and HVAC systems -An analysis of solution  

E-Print Network (OSTI)

Co-simulation for performance prediction of integrated building and HVAC systems - An analysis performance simulation of buildings and heating, ventilation and air- conditioning (HVAC) systems can help, heating, ventilation and air-conditioning (HVAC) systems are responsible for 10%-60% of the total building

436

Scientific data services: a high-performance I/O system with array semantics  

Science Conference Proceedings (OSTI)

As high-performance computing approaches exascale, the existing I/O system design is having trouble keeping pace in both performance and scalability. We propose to address this challenge by adopting database principles and techniques in parallel I/O ... Keywords: data services, database systems, file systems

Kesheng Wu; Surendra Byna; Doron Rotem; Arie Shoshani

2011-11-01T23:59:59.000Z

437

High-Performance Interconnects and Computing Systems: Quantitative Studies A thesis submitted to the Department of  

E-Print Network (OSTI)

. To measure and to predict the performance of parallel computer systems, parallel benchmarks are designedHigh-Performance Interconnects and Computing Systems: Quantitative Studies By Ying Qian A thesis characteristics, parallel programming paradigms used by the applications, and the machine system's architecture

Afsahi, Ahmad

438

Performance Requirements for Tools for Live Work on HVDC Systems  

Science Conference Proceedings (OSTI)

This report summarizes research on tools for live work (LW) that may be used for work on live high-voltage direct-current (HVDC) lines. There is very little detailed information on the performance of these tools when used on HVDC lines because these tools were initially developed for use on AC lines. This report is an account of EPRIs continuing research to fill this knowledge gap.BackgroundThe principles of DC LW and fiberglass reinforced ...

2012-12-14T23:59:59.000Z

439

Java Performance for Scientific Applications on LLNL Computer Systems  

Science Conference Proceedings (OSTI)

Languages in use for high performance computing at the laboratory--Fortran (f77 and f90), C, and C++--have many years of development behind them and are generally considered the fastest available. However, Fortran and C do not readily extend to object-oriented programming models, limiting their capability for very complex simulation software. C++ facilitates object-oriented programming but is a very complex and error-prone language. Java offers a number of capabilities that these other languages do not. For instance it implements cleaner (i.e., easier to use and less prone to errors) object-oriented models than C++. It also offers networking and security as part of the language standard, and cross-platform executables that make it architecture neutral, to name a few. These features have made Java very popular for industrial computing applications. The aim of this paper is to explain the trade-offs in using Java for large-scale scientific applications at LLNL. Despite its advantages, the computational science community has been reluctant to write large-scale computationally intensive applications in Java due to concerns over its poor performance. However, considerable progress has been made over the last several years. The Java Grande Forum [1] has been promoting the use of Java for large-scale computing. Members have introduced efficient array libraries, developed fast just-in-time (JIT) compilers, and built links to existing packages used in high performance parallel computing.

Kapfer, C; Wissink, A

2002-05-10T23:59:59.000Z

440

Operable Unit 3-14, Tank Farm Soil and INTEC Groundwater Remedial Design/Remedial Action Scope of Work  

SciTech Connect

This Remedial Design/Remedial Action (RD/RA) Scope of Work pertains to OU 3-14 Idaho Nuclear Technology and Engineering Center and the Idaho National Laboratory and identifies the remediation strategy, project scope, schedule, and budget that implement the tank farm soil and groundwater remediation, in accordance with the May 2007 Record of Decision. Specifically, this RD/RA Scope of Work identifies and defines the remedial action approach and the plan for preparing the remedial design documents.

D. E. Shanklin

2007-07-25T23:59:59.000Z

Note: This page contains sample records for the topic "remedial system performance" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Debris Removal Project K West Canister Cleaning System Performance Specification  

SciTech Connect

Approximately 2,300 metric tons Spent Nuclear Fuel (SNF) are currently stored within two water filled pools, the 105 K East (KE) fuel storage basin and the 105 K West (KW) fuel storage basin, at the U.S. Department of Energy, Richland Operations Office (RL). The SNF Project is responsible for operation of the K Basins and for the materials within them. A subproject to the SNF Project is the Debris Removal Subproject, which is responsible for removal of empty canisters and lids from the basins. Design criteria for a Canister Cleaning System to be installed in the KW Basin. This documents the requirements for design and installation of the system.

FARWICK, C.C.

1999-12-09T23:59:59.000Z

442

Corrosion performance of materials for advanced combustion systems  

Science Conference Proceedings (OSTI)

Conceptual designs of advanced combustion systems that utilize coal as a feedstock require high-temperature furnaces and heat transfer surfaces capable of operating at much higher temperatures than those in current coal-fired power plants. The combination of elevated temperatures and hostile combustion environments requires development and application of advanced ceramic materials for heat exchangers in these designs. This paper characterizes the chemistry of coal-fired combustion environments over the wide temperature range of interest in these systems and discusses some of the experimental results for several materials obtained from laboratory tests and from exposures in a pilot-scale facility.

Natesan, K. [Argonne National Lab., IL (United States); Freeman, M.; Mathur, M. [Pittsburgh Energy Technology Center, PA (United States)

1995-05-01T23:59:59.000Z

443

Predictability of the Performance of an Ensemble Forecast System: Predictability of the Space of Uncertainties  

Science Conference Proceedings (OSTI)

The performance of an ensemble prediction system is inherently flow dependent. This paper investigates the flow dependence of the ensemble performance with the help of linear diagnostics applied to the ensemble perturbations in a small local ...

Elizabeth Satterfield; Istvan Szunyogh

2010-03-01T23:59:59.000Z

444

Safety, visibility, and performance in a wide-area file system  

Science Conference Proceedings (OSTI)

As mobile clients travel, their costs to reach home filing services change, with serious performance implications. Current file systems mask these performance problems by reducing the safety of updates, their visibility, or both. This is the result of ...

Minkyong Kim; Landon P. Cox; Brian D. Noble

2002-01-01T23:59:59.000Z

445

Measured Performance of California Buydown Program Residential PV Systems  

E-Print Network (OSTI)

, on average, 62 percent of nominal DC module size. For non-tracking systems, average annual energy production annual energy production per unit of nominal DC module size is approximately 1,100 kWh/year. Both Economic Research, Inc. Sanford Miller, California Energy Commission ABSTRACT More than two thousand small

446

IR System Evaluation Why do we perform evaluation?  

E-Print Network (OSTI)

Fallout = b / (b+d) = F Generality = (a+c) / (a+ b + c +d) = G GR/[GR+(1-G)F] = [(a+c)/(a+ b + c +d precision after having retrieved v ranks Fv fall