Confined zone dispersion flue gas desulfurization demonstration (open access)

Confined zone dispersion flue gas desulfurization demonstration

The confined zone dispersion (CZD) process involves flue gas post-treatment, physically located between a boiler's outlet and its particulate collector, which in the majority of cases is an electrostatic precipitator. The features that distinguish this process from other similar injection processes are: Injection of an alkaline slurry directly into the duct, instead of injection of dry solids into the duct ahead of a fabric filter. Use of an ultrafine calcium/magnesium hydroxide, type S pressure-hydrated dolomitic lime. This commercial product is made from plentiful, naturally occurring dolomite. Low residence time, made possible by the high effective surface area of the Type S lime. Localized dispersion of the reagent. Slurry droplets contact only part of the gas while the droplets are drying, to remove up to 50 percent of the S0{sub 2} and significant amounts of NO{sub x}. The process uses dual fluid rather than rotary atomizers. Improved electrostatic precipitator performance via gas conditioning from the increased water vapor content, and lower temperatures. Supplemental conditioning with S0{sub 3} is not believed necessary for satisfactory removal of particulate matter.
Date: February 27, 1992
Creator: unknown
System: The UNT Digital Library
Confined zone dispersion flue gas desulfurization demonstration. [Numerical data only; no text] (open access)

Confined zone dispersion flue gas desulfurization demonstration. [Numerical data only; no text]

Report contains only numerical data, no text.
Date: February 27, 1992
Creator: unknown
System: The UNT Digital Library
Confined zone dispersion flue gas desulfurization demonstration. Volume 1, Quarterly report No. 4, August 1, 1991--October 31, 1991 (open access)

Confined zone dispersion flue gas desulfurization demonstration. Volume 1, Quarterly report No. 4, August 1, 1991--October 31, 1991

The confined zone dispersion (CZD) process involves flue gas post-treatment, physically located between a boiler`s outlet and its particulate collector, which in the majority of cases is an electrostatic precipitator. The features that distinguish this process from other similar injection processes are: Injection of an alkaline slurry directly into the duct, instead of injection of dry solids into the duct ahead of a fabric filter. Use of an ultrafine calcium/magnesium hydroxide, type S pressure-hydrated dolomitic lime. This commercial product is made from plentiful, naturally occurring dolomite. Low residence time, made possible by the high effective surface area of the Type S lime. Localized dispersion of the reagent. Slurry droplets contact only part of the gas while the droplets are drying, to remove up to 50 percent of the S0{sub 2} and significant amounts of NO{sub x}. The process uses dual fluid rather than rotary atomizers. Improved electrostatic precipitator performance via gas conditioning from the increased water vapor content, and lower temperatures. Supplemental conditioning with S0{sub 3} is not believed necessary for satisfactory removal of particulate matter.
Date: February 27, 1992
Creator: unknown
System: The UNT Digital Library
Confined zone dispersion flue gas desulfurization demonstration. Volume 2, Quarterly report No. 4, August 1, 1991--October 31, 1991 (open access)

Confined zone dispersion flue gas desulfurization demonstration. Volume 2, Quarterly report No. 4, August 1, 1991--October 31, 1991

Report contains only numerical data, no text.
Date: February 27, 1992
Creator: unknown
System: The UNT Digital Library
Measurement of D->A Momentum Aperture and Test of D->A Field Qualities (open access)

Measurement of D->A Momentum Aperture and Test of D->A Field Qualities

The data presented here were taken during two shifts dedicated to D->A studies. The goal during both of these study periods was a test of the field quality of the D->A channel devices, but for the first study period on 10/21/91 the TBT system was not operational so we simply measured the transfer efficiency as a function of momentum. The conclusion from these measurements is as follows: (1) The momentum aperture of the D->A channel is smaller than expected. (2) The restriction is in physical space is somewhere near A:IKIK. (3) The field quality of the injection channel devices is adequate.
Date: February 27, 1992
Creator: Halling, Mike
System: The UNT Digital Library
Impeachment: An Overview of Constitutional Provisions, Procedure, and Practice (open access)

Impeachment: An Overview of Constitutional Provisions, Procedure, and Practice

This report provides an overview of constitutional provisions, procedure, and practice of impeachment.
Date: February 27, 1998
Creator: Bazan, Elizabeth B.
System: The UNT Digital Library
Electron-proton instability in the IPNS-Upgrade RCS: Part I (open access)

Electron-proton instability in the IPNS-Upgrade RCS: Part I

The electron-proton instability in the IPNS-Upgrade RCS is investigated in this report. A dispersion relation applicable to the coasting beam is derived, and the approximations used are stated in order to facilitate the understanding of the underlying mechanism of the instability. The threshold of instability in terms of neutralization of the circulating beam is found for the IPNS-Upgrade RCS. The dependence of threshold on the beam size and the lattice tune is also studied and its numerical results are presented.
Date: February 27, 1995
Creator: Chae, Yong-Chul
System: The UNT Digital Library
Petroleum supply monthly, February 1995, with data for December 1994 (open access)

Petroleum supply monthly, February 1995, with data for December 1994

Data presented in the Petroleum Supply Monthly (PSM) describe the supply and disposition of petroleum products in the US and major US geographic regions. The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the US (50 States and the District of Columbia). The reporting universe includes those petroleum sectors in primary supply. Included are: petroleum refiners, motor gasoline blenders, operators of natural gas processing plants and fractionators, inter-PAD transporters, importers, and major inventory holders of petroleum products and crude oil. Data presented in the PSM are divided into two sections: Summary Statistics and Detailed Statistics. The tables and figures in the Summary Statistics section of the PSM present a time series of selected petroleum data on a US level. The detailed Statistics tables of the PSM present statistics for the most current month available as well as year-to-date. In most cases, the statistics are presented for several geographic areas--the US (50 States and the District of Columbia), five PAD Districts, and 12 Refining Districts. 16 figs., 66 tabs.
Date: February 27, 1995
Creator: unknown
System: The UNT Digital Library
Installation of microbes into the drift scale test (open access)

Installation of microbes into the drift scale test

In the past, the potential significance of the microbial activity on the chemical evolution of a radioactive waste repository, waste package lifetime, and radionuclide transport has been discussed. At present those impacts are not understood well enough to determine their significance. The purpose of including the microbial experiments in the Drift Scale Test has been to obtain complex process level information about survival and migration of microbes in an environment analogous to a radioactive waste repository. An added advantage is the ability to put our results in the context of the other data (hydrological, mechanical, and chemical) that are being obtained in this test. With the goal of understanding the significance of microbial survival and migration in this geological repository environment, we have designed the following tests: (1) survival/migration test: borehole emplacement of labeled microbes, (2) survival/migration test: heated drift emplacement of labeled microbes, (3) survival/material-microbe-rock interaction test: carbon steel-microbe-rock and carbon steel-microbe-concrete, and (4) sterile collection and freezing of pre-test rock sample.
Date: February 27, 1998
Creator: Meike, A., LLNL
System: The UNT Digital Library
Design and implementation of a CO{sub 2} flood utilizing advanced reservoir characterization and horizontal injection wells in a shallow shelf carbonate approaching waterflood depletion. Quarterly report, October 1, 1996--December 31, 1996 (open access)

Design and implementation of a CO{sub 2} flood utilizing advanced reservoir characterization and horizontal injection wells in a shallow shelf carbonate approaching waterflood depletion. Quarterly report, October 1, 1996--December 31, 1996

The first objective is to utilize reservoir characterization and advanced technologies to optimize the design of a carbon dioxide (CO{sub 2}) project for the south Cowden Unit (SCU) located in Ector County, Texas. The SCU is a mature, relatively small, shallow shelf carbonate unit nearing waterflood depletion. The second objective is to demonstrate the performance and economic viability of the project in the field. All work this quarter falls within Task V field demonstration. Short progress reports are presented for field demonstration involving: drill horizontal injection wells 6C-25H and 7C-11H; and drill two vertical WAG injectors along South Cowden Unit boundary.
Date: February 27, 1997
Creator: unknown
System: The UNT Digital Library
TNX GeoSiphon Cell (TGSC-1) Phase I Deployment/Demonstration Final Report (open access)

TNX GeoSiphon Cell (TGSC-1) Phase I Deployment/Demonstration Final Report

This report documents the results of the installation of the TNX GeoSiphon Cell and the Phase I testing of the cell.
Date: February 27, 1998
Creator: Phifer, M. A.; Sappington, F. C. & Denham, M. E.
System: The UNT Digital Library
Task 8.4 - High Temperature Turbine Disk Development (open access)

Task 8.4 - High Temperature Turbine Disk Development

The goal of this task is to demonstrate a bonding technique to produce a dual-alloy turbine disk concept which will satisfy the diverse property requirements of the rim and hub areas of the disk. The program examines methods of attaching a cast superalloy rim with sufficient rupture strength to a fine grain hub materials with the required LCF properties. The goals of the program were established in the context of a preliminary turbine design by Solar Turbines, Inc. designated ATS 5. The initial target for the ATS 5 application was to allow rim operating temperatures in the 1350-1400 {degrees} F range. The life goal of the Dual-Alloy Disk was envisioned to maintain Solar`s standard turbine disk philosophy of 1000,000 hours.
Date: February 27, 1997
Creator: unknown
System: The UNT Digital Library
Development and Testing of Industrial Scale, Coal Fired Combustion System, Phase 3: Twentieth quarterly technical progress report, October 1-December 31, 1996 (open access)

Development and Testing of Industrial Scale, Coal Fired Combustion System, Phase 3: Twentieth quarterly technical progress report, October 1-December 31, 1996

In the fourth quarter of calendar year 1996, 15 days of combust boiler tests were performed, including 10 days of tests on a parallel DOE sponsored project on sulfur retention in a slagging combustor. Between tests, modifications and improvements that were indicated by these tests were implemented. This brings the total number of test days to the end of December in the task 5 effort to 57, increased to 65 as of the date of this Report, 1/27/97. This compares with a total of 63 test days needed to complete the task 5 test effort, and it completes the number of tests days required to meet the task 5 project plan. The key project objectives of the areas of combustor performance and environmental performance have been exceeded. With sorbent injection in the combustion gas train, NO{sub x} emissions as low as 0.07 lb/MMBtu and SO{sub 2} emissions as low as 0.2 lb/MMBtu have been measured in tests in this quarter. Work in the next quarter will focus on even greater reductions in environmental emissions. Also tests are planned with coals other than the Eastern U.S. bituminous coals tested in this project. For example, it is planned to tests Indian coals …
Date: February 27, 1997
Creator: Zauderer, Bert
System: The UNT Digital Library
Chaotic behavior control in fluidized bed systems using artificial neural network. Quarterly progress report, October 1, 1996--December 31, 1996 (open access)

Chaotic behavior control in fluidized bed systems using artificial neural network. Quarterly progress report, October 1, 1996--December 31, 1996

Pressurized fluidized-bed combustors (FBC) are becoming very popular, efficient, and environmentally acceptable replica for conventional boilers in Coal-fired and chemical plants. In this paper, we present neural network-based methods for chaotic behavior monitoring and control in FBC systems, in addition to chaos analysis of FBC data, in order to localize chaotic modes in them. Both of the normal and abnormal mixing processes in FBC systems are known to undergo chaotic behavior. Even though, this type of behavior is not always undesirable, it is a challenge to most types of conventional control methods, due to its unpredictable nature. The performance, reliability, availability and operating cost of an FBC system will be significantly improved, if an appropriate control method is available to control its abnormal operation and switch it to normal when exists. Since this abnormal operation develops only at certain times due to a sequence of transient behavior, then an appropriate abnormal behavior monitoring method is also necessary. Those methods has to be fast enough for on-line operation, such that the control methods would be applied before the system reaches a non-return point in its transients. It was found that both normal and abnormal behavior of FBC systems are chaotic. However, …
Date: February 27, 1996
Creator: Bodruzzaman, M. & Essawy, M.A.
System: The UNT Digital Library
High resolution interface nanochemistry and structure: Final project report, December 1, 1993--February 28, 1997 (open access)

High resolution interface nanochemistry and structure: Final project report, December 1, 1993--February 28, 1997

Work includes studies of interface and grain boundary chemistry and structure in silicon nitride matrix/silicon carbide whisker composites, and in monolithic silicon nitride and silicon carbide synthesized by several different methods. Off-stoichiometric, impurity, and sintering aid elemental distributions in these materials (and other ceramics) have been of great interest because of expected effects on properties but these distributions have proven very difficult to measure because the spatial resolution required is high. The authors made a number of these measurements for the first time, using techniques and instrumentation developed here. Interfaces between metals and SiC are the basis for important metal matrix composites and contacts for high temperature SiC-based solid state electronic devices. The authors have investigated ultrapure interfaces between Ti, Hf, Ti-Hf alloys, Pt, and Co and Si-terminated (0001) 6H SiC single crystals for the first time.
Date: February 27, 1997
Creator: Carpenter, R. W. & Lin, S. H.
System: The UNT Digital Library
Remote nuclear screening system for hostile environments (open access)

Remote nuclear screening system for hostile environments

A remote measurement system has been constructed for in situ gamma and beta isotopic characterization of highly radioactive nuclear material in hostile environments. A small collimated, planar CdZnTe detector is used for gamma-ray spectroscopy. Spectral resolution of 2% full width at half maximum at 662 kiloelectronvolts has been obtained remotely using rise time compensation and limited pulse shape discrimination, Isotopc measurement of high-energy beta emitters was accomplished with a ruggedized, deeply depleted, surface barrier silicon dictator. The primary function of the remote nuclear screening system is to provide fast qualitative and quantitative isotopic assessment of high-level radioactive material.
Date: February 27, 1996
Creator: Addleman, R. S.; Beck, M. A.; Blewett, G. R.; Selle, E. R.; McClellan, C. S.; Dodd, D. A. et al.
System: The UNT Digital Library
Supporting safety documentation for subsurface construction of the canister storage building below grade construction restart (open access)

Supporting safety documentation for subsurface construction of the canister storage building below grade construction restart

The supporting safety documentation for subsurface construction of the canister storage building provides the safety documentation to support Key Decision 3b for the Canister Storage Building project.
Date: February 27, 1996
Creator: Garvin, L.J.
System: The UNT Digital Library
Gas characterization system software acceptance test procedure (open access)

Gas characterization system software acceptance test procedure

This document details the Software Acceptance Testing of gas characterization systems. The gas characterization systems will be used to monitor the vapor spaces of waste tanks known to contain measurable concentrations of flammable gases.
Date: February 27, 1996
Creator: Vo, C.V.
System: The UNT Digital Library
Development of design basis capacity for SNF project systems (open access)

Development of design basis capacity for SNF project systems

An estimate of the design capacity for Spent Nuclear Fuel Project systems producing Multi-Canister Overpacks is developed based on completing fuel processing in a two year period. The design basis capacity for systems relates the desired annual processing rate to potential operating inefficiencies which may be actually experienced to project a design capacity for systems. The basis for estimating operating efficiency factors is described. Estimates of the design basis capacity were limited to systems actually producing the Multi-Canister Overpack. These systems include Fuel Retrieval, K Basin SNF Vacuum Drying, Canister Storage Building support for Staging and Storage, and Hot Vacuum conditioning. The capacity of other systems are assumed to be derived from these system capacities such that systems producing a Multi-Canister Overpack are not constrained.
Date: February 27, 1996
Creator: Pajunen, A.L.
System: The UNT Digital Library
Tank farms backlog soil sample and analysis results supporting a contained-in determination (open access)

Tank farms backlog soil sample and analysis results supporting a contained-in determination

Soil waste is generated from Tank Farms and associated Tank Farms facilities operations. The soil is a mixed waste because it is an environmental media which contains tank waste, a listed mixed waste. The soil is designated with the listed waste codes (FOO1 through F005) which have been applied to all tank wastes. The scope of this report includes Tank Farms soil managed under the Backlog program. The Backlog Tank Farm soil in storage consists of drums and 5 boxes (originally 828 drums). The Backlog Waste Program dealt with 2276 containers of solid waste generated by Tank Farms operations during the time period from 1989 through early 1993. The containers were mismanaged by being left in the field for an extended period of time without being placed into permitted storage. As a corrective action for this situation, these containers were placed in interim storage at the Central Waste Complex (CWC) pending additional characterization. The Backlog Waste Analysis Plan (BWAP) (RL 1993) was written to define how Backlog wastes would be evaluated for proper designation and storage. The BWAP was approved in August 1993 and all work required by the BWAP was completed by July 1994. This document presents results of …
Date: February 27, 1997
Creator: Jackson, C.L., Fluor Daniel Hanford
System: The UNT Digital Library
Acceptance test report for the mobile color camera system (open access)

Acceptance test report for the mobile color camera system

The purpose of this report is to present test data recorded during acceptance testing of the Mobile Color Camera System (MCCS).
Date: February 27, 1997
Creator: Castleberry, J.L., Fluor Daniel Hanford
System: The UNT Digital Library
QUEST2: Release 1, SA/Release 1 supporting documents deliverable set (open access)

QUEST2: Release 1, SA/Release 1 supporting documents deliverable set

This document contains deliverables which reflect the last of the System Architecture phase analysis for the Quality, Environmental, Safety Tracking System redesign (QUEST2) project. These deliverables are focused on the final insights required to start functional design of the first QUEST2 release. They include the data definitions, conversion rules, standards for design and user interface, performance criteria, and rules to be followed during the prototyping activity described in the Project Management Plan.
Date: February 27, 1995
Creator: Braaten, F.D.
System: The UNT Digital Library
WRAP process area development control work plan (open access)

WRAP process area development control work plan

This work plan defines the manner in which the Waste Receiving and Processing Facility, Module I Process Area will be maintained under development control status. This status permits resolution of identified design discrepancies, control system changes, as-building of equipment, and perform modifications to increase process operability and maintainability as parallel efforts. This work plan maintains configuration control as these efforts are undertaken. This task will end with system testing and reissue of field verified design drawings.
Date: February 27, 1997
Creator: Leist, K.L., Fluor Daniel Hanford
System: The UNT Digital Library
Fiscal year 1997 Memorandum of Understanding for the TWRS characterization project (open access)

Fiscal year 1997 Memorandum of Understanding for the TWRS characterization project

During fiscal year 1997, the level of success achieved by the Tank Waste Remediation System (TWRS) shall be determined by specific performance measures. These measures take the form of significant deliverables, one of which is the completion of Tank Characterization Reports (TCRs). In order to achieve success regarding the TCR performance deliverable, multiple organizations across TWRS must work together. Therefore, the requirements and expectations needed from each of these TWRS organizations were examined in order to gain an understanding of the performance necessary from each organization to achieve the end deliverable. This memorandum of understanding (MOU) documents the results of this review and establishes the performance criteria by which TWRS will assess its progress and success. These criteria have been determined based upon a TWRS Characterization Project budget of $56.8 million for fiscal year 1997; if this budget is changed or the currently identified workscope is modified, this MOU will need to be revised accordingly. This MOU is subdivided into six sections, where sections three through six each identify individual interfaces between TWRS organizations. The specific performance criteria related to each TWRS organizational interface are then delineated in the section, along with any additional goals or issues pertaining to that …
Date: February 27, 1997
Creator: Schreiber, R.D., Fluor Daniel Hanford
System: The UNT Digital Library