Cooperative Research and Development for Advanced Microturbines Program on Advanced Integrated Microturbine System (open access)

Cooperative Research and Development for Advanced Microturbines Program on Advanced Integrated Microturbine System

The Advanced Integrated Microturbine Systems (AIMS) project was kicked off in October of 2000 to develop the next generation microturbine system. The overall objective of the project was to develop a design for a 40% electrical efficiency microturbine system and demonstrate many of the enabling technologies. The project was initiated as a collaborative effort between several units of GE, Elliott Energy Systems, Turbo Genset, Oak Ridge National Lab and Kyocera. Since the inception of the project the partners have changed but the overall direction of the project has stayed consistent. The project began as a systems study to identify design options to achieve the ultimate goal of 40% electrical efficiency. Once the optimized analytical design was identified for the 40% system, it was determined that a 35% efficient machine would be capable of demonstrating many of the advanced technologies within the given budget and timeframe. The items that would not be experimentally demonstrated were fully produced ceramic parts. However, to understand the requirements of these ceramics, an effort was included in the project to experimentally evaluate candidate materials in representative conditions. The results from this effort would clearly identify the challenges and improvement required of these materials for the full …
Date: May 30, 2007
Creator: Bowman, Michael J.
System: The UNT Digital Library
Development of Waste Acceptance Criteria at 221-U Building: Initial Flow and Transport Scoping Calculations (open access)

Development of Waste Acceptance Criteria at 221-U Building: Initial Flow and Transport Scoping Calculations

This report documents numerical flow and transport simulations performed that establish initial waste acceptance criteria for the potential waste streams that may be safely sequestered in the 221-U Building and similar canyon structures. Specifically, simulations were executed to identify the maximum loading of contaminant mass (without respect to volume) that can be emplaced within the 221-U Building with no more than 1 pCi/m2 of contaminant migrating outside the structure within a 1,000 year time period. The initial scoping simulations were executed in one dimension to assess important processes, and then two dimensions to establish waste acceptance criteria. Two monolithic conditions were assessed: (1) a grouted canyon monolith; and (2) a canyon monolith filled with sand, both assuming no cracks or fissures were present to cause preferential transport. A three-staged approach was taken to account for different processes that may impact the amount of contaminant that can be safely sequestered in canyon structure. In the first stage, flow and transport simulations established waste acceptance criteria based on a linear (Kd) isotherm approach. In the second stage, impacts on thermal loading were examined and the differences in waste acceptance criteria quantified. In the third stage of modeling, precipitation/dissolution reactions were considered on …
Date: May 30, 2007
Creator: Freedman, Vicky L.; Zhang, Z. F.; Keller, Jason M. & Chen, Yousu
System: The UNT Digital Library
Groundwater and Leachate Monitoring and Sampling at ERDF, CY 2006 (open access)

Groundwater and Leachate Monitoring and Sampling at ERDF, CY 2006

The purpose of this annual monitoring report is to evaluate the conditions of and identify trends for groundwater beneath the ERDF and to report leachate results in fulfillment of the requirements specified in the ERDF ROD.
Date: May 30, 2007
Creator: Weiss, R. L.
System: The UNT Digital Library
Haiti’s Development Needs and a Statistical Overview of Conditions of Poverty (open access)

Haiti’s Development Needs and a Statistical Overview of Conditions of Poverty

This report provides a brief analysis of Haiti's development needs. It examines the current situation in Haiti, Haiti's development needs, and what is being done by the Haitian government, the United States, and foreign donors to meet those needs.
Date: May 30, 2007
Creator: Taft-Morales, Maureen & Drummer, Demond Alexander
System: The UNT Digital Library
Improved Criteria for Acceptable Yield Point Elongation in Surface Critical Steels (open access)

Improved Criteria for Acceptable Yield Point Elongation in Surface Critical Steels

Yield point elongation (YPE) is considered undesirable in surface critical applications where steel is formed since "strain lines" or Luders bands are created during forming. This project will examine in detail the formation of luders bands in industrially relevant strain states including the influence of substrate properties and coatings on Luders appearance. Mechanical testing and surface profilometry were the primary methods of investigation.
Date: May 30, 2007
Creator: Matlock, David & Speer, John
System: The UNT Digital Library
Judicial Security: Comparison of Legislation in the 110th Congress (open access)

Judicial Security: Comparison of Legislation in the 110th Congress

None
Date: May 30, 2007
Creator: unknown
System: The UNT Digital Library
Liability of Interactive Computer Service for Violating the Fair Housing Act (open access)

Liability of Interactive Computer Service for Violating the Fair Housing Act

None
Date: May 30, 2007
Creator: Cohen, Henry
System: The UNT Digital Library
Panama: Political and Economic Conditions and U.S. Relations (open access)

Panama: Political and Economic Conditions and U.S. Relations

None
Date: May 30, 2007
Creator: unknown
System: The UNT Digital Library
RELEASE OF DRIED RADIOACTIVE WASTE MATERIALS TECHNICAL BASIS DOCUMENT (open access)

RELEASE OF DRIED RADIOACTIVE WASTE MATERIALS TECHNICAL BASIS DOCUMENT

This technical basis document was developed to support RPP-23429, Preliminary Documented Safety Analysis for the Demonstration Bulk Vitrification System (PDSA) and RPP-23479, Preliminary Documented Safety Analysis for the Contact-Handled Transuranic Mixed (CH-TRUM) Waste Facility. The main document describes the risk binning process and the technical basis for assigning risk bins to the representative accidents involving the release of dried radioactive waste materials from the Demonstration Bulk Vitrification System (DBVS) and to the associated represented hazardous conditions. Appendices D through F provide the technical basis for assigning risk bins to the representative dried waste release accident and associated represented hazardous conditions for the Contact-Handled Transuranic Mixed (CH-TRUM) Waste Packaging Unit (WPU). The risk binning process uses an evaluation of the frequency and consequence of a given representative accident or represented hazardous condition to determine the need for safety structures, systems, and components (SSC) and technical safety requirement (TSR)-level controls. A representative accident or a represented hazardous condition is assigned to a risk bin based on the potential radiological and toxicological consequences to the public and the collocated worker. Note that the risk binning process is not applied to facility workers because credible hazardous conditions with the potential for significant facility worker …
Date: May 30, 2007
Creator: KOZLOWSKI, S.D.
System: The UNT Digital Library
RH-TRU Waste Content Codes (RH-TRUCON) (open access)

RH-TRU Waste Content Codes (RH-TRUCON)

The Remote-Handled Transuranic (RH-TRU) Content Codes (RH-TRUCON) document describes the inventory of RH-TRU waste within the transportation parameters specified by the Remote-Handled Transuranic Waste Authorized Methods for Payload Control (RH-TRAMPAC).1 The RH-TRAMPAC defines the allowable payload for the RH-TRU 72-B. This document is a catalog of RH-TRU 72-B authorized contents by site. A content code is defined by the following components: • A two-letter site abbreviation that designates the physical location of the generated/stored waste (e.g., ID for Idaho National Laboratory [INL]). The site-specific letter designations for each of the sites are provided in Table 1. • A three-digit code that designates the physical and chemical form of the waste (e.g., content code 317 denotes TRU Metal Waste). For RH-TRU waste to be transported in the RH-TRU 72-B, the first number of this three-digit code is “3.” The second and third numbers of the three-digit code describe the physical and chemical form of the waste. Table 2 provides a brief description of each generic code. Content codes are further defined as subcodes by an alpha trailer after the three-digit code to allow segregation of wastes that differ in one or more parameter(s). For example, the alpha trailers of the subcodes …
Date: May 30, 2007
Creator: Solutions, Washington TRU
System: The UNT Digital Library
Secret Sessions of Congress: A Brief Historical Overview (open access)

Secret Sessions of Congress: A Brief Historical Overview

None
Date: May 30, 2007
Creator: unknown
System: The UNT Digital Library
State, Foreign Operations, and Related Programs: FY2008 Appropriations (open access)

State, Foreign Operations, and Related Programs: FY2008 Appropriations

None
Date: May 30, 2007
Creator: unknown
System: The UNT Digital Library
Terrorism Risk Insurance: Issue Analysis and Legislation (open access)

Terrorism Risk Insurance: Issue Analysis and Legislation

None
Date: May 30, 2007
Creator: unknown
System: The UNT Digital Library
U.S. Trade Deficit and the Impact of Rising Oil Prices (open access)

U.S. Trade Deficit and the Impact of Rising Oil Prices

None
Date: May 30, 2007
Creator: unknown
System: The UNT Digital Library