Resource Type

Mechanisms of flow through compressible porous beds in sedimentation, centrifugation, deliquoring, and ceramic processing (open access)

Mechanisms of flow through compressible porous beds in sedimentation, centrifugation, deliquoring, and ceramic processing

The major topics covered in the investigation include: centrifugation; cake filtration; sedimentation and thickening; capillary suction operations; ceramics, slip casting; optimization studies; and wastewater. The research program was aimed at the specific areas of solid/liquid separation including sedimentation, thickening, cake filtration, centrifugation, expression, washing, deep-bed filtration, screening, and membrane separation. Unification of the theoretical approaches to the various solid/liquid separation operations was the principle objective of the research. Exploring new aspects of basic separation mechanisms, verification of theory with experiment, development of laboratory procedures for obtaining data for design, optimizing operational methods, and transferring the results to industry were part of the program.
Date: January 25, 1996
Creator: unknown
System: The UNT Digital Library
Vapor and gas sampling of single-shell tank 241-BX-104 using the vapor sampling system (open access)

Vapor and gas sampling of single-shell tank 241-BX-104 using the vapor sampling system

This document presents sampling data resulting from the December 30, 1994, sampling of SST 241-BX-104 using the vapor sampling system.
Date: September 25, 1995
Creator: Caprio, G.S.
System: The UNT Digital Library
ISOSHLD Analysis for storing transuranic ion exchange columns (open access)

ISOSHLD Analysis for storing transuranic ion exchange columns

The objective of the ISOSHLD Analysis is to estimate the thickness of concrete shielding necessary to store the KE Fuel Storage Basin transuranic ion exchange columns above ground. The quantity of radioactive material was taken from the tables in PNL-IX-IR-0004, ``Best Estimate of Radionuclide Inventories by Canister.`` The cesium activity was based on a mass balance. The exposure rate (R/hr) was slightly higher in the resulting ISOSHLD model than actually measured due to possible measurement errors and conservative assumptions in the computer model
Date: September 25, 1995
Creator: Mills, W.C.
System: The UNT Digital Library
APS runControl library (open access)

APS runControl library

This document serves as a User`s Manual and Reference for the runControl library. This library is designed to be used by closed- loop EPICS control applications which are generally run in the background on the controls workstations. It permits an application to `register` itself with an EPICS record, thereby preventing additional instances of the same application from being run. In addition, the executing application may in turn be suspended or aborted via an MEDM control screen or other standard channel access client.
Date: October 25, 1995
Creator: Saunders, C. & Borland, M.
System: The UNT Digital Library
Revised STREAM code benchmarking with 1991 K-reactor tritiated aqueous release incident (open access)

Revised STREAM code benchmarking with 1991 K-reactor tritiated aqueous release incident

The transport and diffusion module of the WIND System aqueous emergency response program (STREAM code) was replaced with the EPA WASP5 code. A set of input data was developed to model the transport of pollutants from a release point in K-Area to Savannah, Georgia through Indian Grave Branch, Pen Branch, the SRS swamp, Steel Creek, and the Savannah River. To evaluate the modifications to the STREAM code, data from an accidental release of tritiated water from K-Reactor in 1991 were used for benchmarking. A leak in a heat exchanger allowed a small amount of reactor coolant water to be released to cooling streams onsite, eventually reaching the Savannah River. Measurements of tritium concentration were taken at several downstream locations during the release. The results show that the revised STREAM code overpredicts the peak concentrations by 3 to 15%, which is comparable to the measurement uncertainty (one standard deviation). The revised STREAM code underpredicts the transport times of the concentration peak by 18 to 37%. The discrepancies in the travel time could result from uncertainties in the start of the release. The revised STREAM code performed well in simulating both the timing and the magnitude of the maximum observed tritium concentration. …
Date: April 25, 1996
Creator: Chen, K.F.
System: The UNT Digital Library
Maintenance of the Coal Sample Bank and Database. Quarterly technical progress report, January 1, 1996--March 31, 1996 (open access)

Maintenance of the Coal Sample Bank and Database. Quarterly technical progress report, January 1, 1996--March 31, 1996

This five year project is intended to ensure the availability of well- characterized, high-quality coal samples for public and private coal research. It continues support of the DOE Coal Sample Bank and Database at The Pennsylvania State University. Eleven coal samples will be collected, processed, packaged, and analyzed, and a resulting database will be maintained. These samples and data, as well as 45 samples collected under previous contracts, will be distributed to DOE contractors and others performing coal research. Samples will be chosen to maintain a sample bank of 56 coals representing the major US coal fields and a variety of coal ranks and compositions. In addition to standard analyses, liquefaction tests and organic geochemical analyses will be performed. The samples will be stored to minimize deterioration, and 10 samples will be monitored annually by proximate, sulfur forms, and gaseous oxygen analysis to evaluate their condition. Technical progress is summarized for the following tasks: storage and inventory of samples; monitoring of sample quality; collection and processing of replacement samples; basic characterization of coal samples; liquefaction testing; organic geochemistry (nuclear magnetic resonance spectroscopy); distribution of coal samples to users; data entry; and distribution of data to users.
Date: April 25, 1996
Creator: Davis, A. & Glick, D. C.
System: The UNT Digital Library
Technology development for cobalt F-T catalysts. Final quarterly technical progress report No. 11, April 1, 1995--June 30, 1995 (open access)

Technology development for cobalt F-T catalysts. Final quarterly technical progress report No. 11, April 1, 1995--June 30, 1995

Preliminary results on the effect of reaction temperature on the performance of Co catalysts during F-T synthesis obtained during the last quarter confirmed that Co catalysts were very sensitive to temperature and deactivated significantly at temperatures above 240{degree}C both in the fixed bed and the slurry bubble column reactors. Following this preliminary investigation, a series of tests were carried out during this period in order to elucidate the nature of this deactivation process as well as determine possible means of preventing it. In order to elucidate the nature of this deactivation process, the catalysts which had undergone significant deactivation after high temperature (280{degree}C) reaction in either the fixed bed reactor or the slurry bubble column reactor were regenerated and retested in the fixed bed reactor. In both cases the catalysts recovered completely their initial activity. In addition, reactions at very high H{sub 2}CO ratios and high temperatures showed very little deactivation, suggesting that the deactivation of the Co catalysts during F-T synthesis at high temperatures was mainly due carbon formation via the Boudouard reaction. Due to the unreactive nature of this carbon, it could only be removed by calcination. A second series of experiments was carried out to investigate the …
Date: October 25, 1995
Creator: Singleton, Alan H.
System: The UNT Digital Library
Hanford site sodium management plan (open access)

Hanford site sodium management plan

The Hanford Site Sodium Management Plan, Revision 1, provides changes to the major elements and management strategy to ensure an integrated and coordinated approach for disposition of the more than 350,000 gallons of sodium and related sodium facilities located at the DOE`s Hanford Site
Date: September 25, 1995
Creator: Guttenberg, S.
System: The UNT Digital Library
1995 Annual wildlife survey report. Natural Resource Protection and Compliance Program (open access)

1995 Annual wildlife survey report. Natural Resource Protection and Compliance Program

This report summarizes the results of wildlife surveys performed at Rocky Flats Environmental Technology Site (RFETS) from January through December of 1995 as compared with results from previous years. These surveys were performed as part of a long-term ecological monitoring program conducted under the Natural Resource Protection and Compliance Program (NRPCP). This program is essential in identifying and describing fluctuations of wildlife populations, wildlife habitat use, and changes in species using RFETS. The NRPCP provides support to the Department of Energy (DOE) in its role as Natural Resource Trustee, and provides data essential to accomplishing the goal of preserving the unique ecological values of RFETS in keeping with the Rocky Flats Vision presented in the Rocky Flats Cleanup Agreement Public Comment Draft. Wildlife population densities vary due to natural pressures and human influences, and only long-term monitoring can verify which factors influencing wildlife populations are the consequence of natural fluctuations, and which are due to human influences. The wildlife monitoring described in this report provides qualitative data that give an indication of the ecological health of RFETS. Monitoring numbers, habitat affinities, and apparent health of the wildlife populations makes it possible to evaluate the overall ecological health of the site. …
Date: April 25, 1996
Creator: unknown
System: The UNT Digital Library
Slag characterization and removal using pulse detonation for coal gasification. Quarterly research report, January 1, 1996--March 31, 1996 (open access)

Slag characterization and removal using pulse detonation for coal gasification. Quarterly research report, January 1, 1996--March 31, 1996

Microbeam Technologies Incorporated (MTI) is working with Prairie View to develop and demonstrate a new method to remove deposits from coal-fired utility boilers. MTI is providing background information on fuel properties, ash formation, ash deposition, and ash removal. In addition, MTI is providing deposits collected from a full scale utility boilers. Ash deposits on fireside heat exchange surfaces of power plants significantly decrease plant efficiency and are aggravated by variability in coal quality. Deposit formation is related to coal quality (chemical and physical characteristics of the inorganic material), system operating conditions, and system design. Variations in coal quality can significantly influence ash deposition on heat transfer surfaces resulting in decreased plant performance and availability. Ash accumulations on heat transfer surfaces require annual or semi-annual shutdowns for cleaning which result in cleaning costs and lost revenues from being off-line. In addition, maintaining slag flow in wet bottom boilers and cyclone-fired boilers can require co-firing of other fuels and outages to remove frozen slag resulting in decreased efficiency and availability. During this reporting period MTI performed analysis of deposits collected from full-scale utility boilers. Deposit samples were obtained from Basin Electric and from Northern States Power (NSP). The analyses were conducted using …
Date: March 25, 1996
Creator: Huque, Z.; Mei, D.; Biney, P.O. & Zhou, J.
System: The UNT Digital Library
CaWingz user`s guide (open access)

CaWingz user`s guide

This document assumes that you have read and understood the Wingz user`s manuals. CaWingz is an external Wingz program which, when combined with a set of script files, provides easy-to-use EPICS channel access interface functions for Wingz users. The external function run allows Wingz user to invoke any Unix processor within caWingz. Few additional functions for accessing static database field and monitoring of value change event is available for EPICS users after release 3.11. The functions, script files, and usage are briefly described in this document. The script files supplied here serve as examples only. Users are responsible for generating their own spreadsheet and script files. CaWingz communicates with IOC through channel access function calls.
Date: April 25, 1994
Creator: Cha, Ben-chin
System: The UNT Digital Library
Vapor and gas sampling of single-shell tank 241-C-108 using the vapor sampling system (open access)

Vapor and gas sampling of single-shell tank 241-C-108 using the vapor sampling system

This document presents sampling data resulting from the August 5, 1994, sampling of SST 241-C-108 using the vapor sampling system.
Date: September 25, 1995
Creator: Caprio, G.S.
System: The UNT Digital Library
An Advanced Control System For Fine Coal Flotation (open access)

An Advanced Control System For Fine Coal Flotation

A model-based flotation control scheme is being implemented to achieve optimal performance in the handling and treatment of fine coal. The control scheme monitors flotation performance through on-line analysis of ash content. Then, based on the economic and metallurgical performance of the circuit, variables such as collector dosage, frother dosage, and pulp level are adjusted using model-based control algorithms to compensate for feed variations and other process disturbances. Recent developments in sensor technology are being applied for on-line determination of slurry ash content. During the ninth quarter of this project, Task 3 (Model Building and Computer Simulation) and Task 4 (Sensor Testing) were nearly completed, and Task 6 (Equipment Procurement and Installation) was initiated. Previously, data collected from the plant sampling campaign (Task 2) were used to construct a population balance model to describe the steady-state and dynamic behavior of the flotation circuit. The details of this model were presented in the Eighth Quarterly Technical Progress Report. During the past quarter, a flotation circuit simulator was designed and used to evaluate control strategies. As a result of this work, a model-based control strategy has been conceived which will allow manipulated variables to be adjusted in response to disturbances to achieve …
Date: August 25, 1998
Creator: Luttrell, G. H. & Adel, G. T.
System: The UNT Digital Library
Second generation advanced reburning for high efficiency NO{sub x} control. Progress report No. 2, January 1--March 31, 1996 (open access)

Second generation advanced reburning for high efficiency NO{sub x} control. Progress report No. 2, January 1--March 31, 1996

Existing NO{sub x} control technologies have limitations which may prevent them from successfully achieving commercial, cost effective application in the near future. This project develops a family of novel NO{sub x} control technologies, Second Generation Advanced Reburning (SGAR), which have a potential to achieve 90+% NO{sub x} control at a significantly lower cost than Selective Catalytic Reduction (SCR). Phase I consists of six tasks: Task 1.1, project coordination and reporting deliverables; Task 1.2, kinetics of Na{sub 2}CO{sub 3} reactions with flue gas components; Task 1.3, 0.1 {times} 10{sup 6} Btu/hr optimization studies; Task 1.4, 1.0 {times} 10{sup 6} Btu/hr process development tests; Task 1.5, mechanism development and modeling; and Task 1.6, design methodology and application. This second reporting period included both modeling and experimental activities. Modeling was focused on evaluation of ammonia injection into the reburning zone and on the effect of various additives on promotion of the NO-NH{sub 3} interaction in the reburning zone. First bench scale Controlled Temperature Tower (CTT) experiments have been performed on different variants of the Advanced Returning technology. The tests are continued, and the results will be reduced and reported in the next quarter.
Date: April 25, 1996
Creator: Zamansky, V. M.
System: The UNT Digital Library
Stress corrosion cracking tests using double-cantilever-beam specimens (open access)

Stress corrosion cracking tests using double-cantilever-beam specimens

Although a wide variety of degradation modes can occur in aqueous environments for corrosion-resistant metallic materials, localized corrosion such as pitting corrosion, crevice corrosion, SCC, and hydrogen embrinlement (HE) is considered to be the primary mode. The evaluation of the susceptibility of candidate corrosion-resistant container materials to pitting and crevice corrosion is well underway using electrochemical polarization techniques described in the Activity Plan E-20-43144. The proposed activity (E-20-56) is aimed at evaluating the SCC behavior of these materials in susceptible environments using the linearelastic-fracture-mechanics (LEFM) concept. The mechanical driving force for crack growth, or the stress distribution at the crack tip is quantified by the stress intensity factor, K, for the specific crack and loading geometry. The critical stress intensity factor for SCC, K<sub>ISCC</sub> for candidate materials will be evaluated in environments of interest, and their comparisons will be made to select the waste package inner container material having an optimum SCC resistance.
Date: October 25, 1996
Creator: Roy, A.
System: The UNT Digital Library
Vapor and gas sampling of single-shell tank 241-BY-103 using the vapor sampling system (open access)

Vapor and gas sampling of single-shell tank 241-BY-103 using the vapor sampling system

This document presents sampling data resulting from the November 1, 1994, sampling of SST 241-BY-103 using the vapor sampling system.
Date: September 25, 1995
Creator: Caprio, G.S.
System: The UNT Digital Library
Dysregulation of temperature and liver cytokine gene expression in immunodeficient wasted mice (open access)

Dysregulation of temperature and liver cytokine gene expression in immunodeficient wasted mice

Wasted mice bear the spontaneous autosomal recessive mutation wst/wst; this genotype is associated with weight loss beginning at 21 days of age, neurologic dysfunction, immunodeficiency at mucosal sites, and increased sensitivity to the killing effects of ionizing radiation. The pathology underlying the disease symptoms is unknown. Experiments reported here were designed to examine thermoregulation and liver expression of specific cytokines in wasted mice and in littermate and parental controls. Our experiments found that wasted mice begin to show a drop in body temperature at 21-23 days following birth, continuing until death at the age of 28 days. Concomitant with that, livers from wasted mice expressed increased amounts of mRNAs specific for cytokines IL,6 and IL-1, the acute phase reactant C-reactive protein, c-jun, and apoptosis-associated Rp-8 when compared to littermate and parental control animals. Levels of {beta}-transforming growth factor (TGF), c-fos, proliferating cell nuclear antigen (PCNA), and ornithine amino transferase (OAT) transcripts were the same in livers from wasted mice and controls. These results suggest a relationship between an acute phase reactant response in wasted mice and temperature dysregulation.
Date: April 25, 1995
Creator: Libertin, C. R.; Ling-Indeck, L.; Weaver, P.; Chang-Liu, Chin-Mei; Strezoska, V.; Heckert, B. et al.
System: The UNT Digital Library
Necessary and Sufficient Standards Closure Process pilot: F- and H-Area groundwater remediation (open access)

Necessary and Sufficient Standards Closure Process pilot: F- and H-Area groundwater remediation

The DOE Standards Committee`s Necessary and Sufficient (N and S) Standards Closure Process was piloted at SRS on the F- and H- Area Seepage Basins Groundwater Remediation Project. For this existing Environmental Restoration project, the set of N and S standards for design and safety documentation were identified, independently confirmed and approved. Implementation of these standards on the project can lead to a $2.8 Million cost savings on the design, construction/installation, and safety documentation scope of $18 Million. These savings were primarily from site design of power distribution and piping for the water treatment units. Also contributing to the savings were a more appropriate level of safety documentation and the alternate ``commercial`` bids made by vendors in response to a request for proposals for water treatment units. The use of the N and S Process on an ER activity, details on the cost savings, lessons learned and recommendations for broader implementation of the N and S Process are described herein.
Date: September 25, 1995
Creator: Bullington, M.
System: The UNT Digital Library
Standard hydrogen monitoring system-B operation and maintenance manual (open access)

Standard hydrogen monitoring system-B operation and maintenance manual

The purpose of this document is to provide information for the operation and maintenance of the Standards Hydrogen Monitoring System-B (SHMS-B) used in the 200E and 200W area tank farms on the Hanford site. This provides information specific to the mechanical operation of the system and is not intended to take the place of a Plant Operating Procedure. The primary function of the SHMS-B is to monitor specifically for hydrogen in the waste tank vapor space which may also contain unknown quantities of other gaseous constituents.
Date: January 25, 1995
Creator: Bender, R.M.
System: The UNT Digital Library
PFP MICON maintenance manual. Revision 1 (open access)

PFP MICON maintenance manual. Revision 1

This manual covers the use of maintenance displays, maintenance procedures, system alarms and common system failures. This manual is intended to supplement the MICON maintenance training not replace it. It also assumes that the user is familiar with the normal operation of the MICON A/S system. The MICON system is a distributed control computer and, among other things, controls the HVAC system for the Plutonium Finishing Plant.
Date: January 25, 1995
Creator: Silvan, G.R.
System: The UNT Digital Library
Winter Fuels Report: Week Ending January 19, 1996 (open access)

Winter Fuels Report: Week Ending January 19, 1996

The Winter Fuels Report is intended to provide concise, timely information to the industry, the press, the policymakers, consumers, analysts, and State and local governments on the following topics: distillate fuel oil net production, imports and stocks on a US level and for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks on a US level and for PADD`s 1, 2, and 3; natural gas supply and disposition and underground storage for the US and consumption for all PADD`s, as well as selected National average prices; residential and wholesale pricing data for heating oil and propane for those States participating in the joint Energy Information Administration (EIA)/State Heating Oil and Propane Program; crude oil and petroleum price comparisons for the US and selected cities; and a 6--10 Day and 30-Day outlook for temperature and precipitation and US total heating degree-days by city. 36 figs., 13 tabs.
Date: January 25, 1996
Creator: unknown
System: The UNT Digital Library
Functional requirements for portable exhauster system to be used during saltwell pumping (open access)

Functional requirements for portable exhauster system to be used during saltwell pumping

This document defines functional requirements for portable exhausters used to ventilate primary tanks during saltwell pumping, and provide back-up to primary and annulus ventilation systems at C-106 and AY-102.
Date: July 25, 1998
Creator: Nelson, O. D.
System: The UNT Digital Library
Waste compatibility and final report for Tank 241-A-101, Grab Samples 1A-96-1, 1A-96-2, and 1A-96-3 (open access)

Waste compatibility and final report for Tank 241-A-101, Grab Samples 1A-96-1, 1A-96-2, and 1A-96-3

This document is the final report deliverable for tank 241-A- 101 grab samples. Three grab samples (IA-96-1, IA-96-2 and IA-96-3) were taken from riser 4 of tank 241-A-101. Samples were collected on April 3, 1996 and received by the 222-S Laboratory on April 4, 1996. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO). The samples were subsampled and analyzed in accordance with the TSAP. Two of the three grab samples contained a significant amount of solids and special analyses were requested. None of the samples exceeded notification limits. No similarities in sample appearance were noted; this could be an explanation for the varying analytical results. Quality control issues are discussed in each analytical subheading. The raw data for all analyses are included in this report.
Date: July 25, 1996
Creator: Steen, F.H., Westinghouse Hanford
System: The UNT Digital Library
Accident investigation board report on the May 14, 1997, chemical explosion at the Plutonium Reclamation Facility, Hanford Site,Richland, Washington - final report (open access)

Accident investigation board report on the May 14, 1997, chemical explosion at the Plutonium Reclamation Facility, Hanford Site,Richland, Washington - final report

On May 14, 1997, at 7:53 p.m. (PDT), a chemical explosion occur-red in Tank A- 109 in Room 40 of the Plutonium Reclamation Facility (Facility) located in the 200 West Area of the Hanford Site, approximately 30 miles north of Richland, Washington. The inactive processing Facility is part of the Plutonium Finishing Plant (PFP). On May 16, 1997, Lloyd L. Piper, Deputy Manager, acting for John D. Wagoner, Manager, U.S. Department of Energy (DOE), Richland Operations Office (RL), formally established an Accident Investigation Board (Board) to investigate the explosion in accordance with DOE Order 225. 1, Accident Investigations. The Board commenced its investigation on May 15, 1997, completed the investigation on July 2, 1997, and submitted its findings to the RL Manager on July 26, 1997. The scope of the Board`s investigation was to review and analyze the circumstances of the events that led to the explosion; to analyze facts and to determine the causes of the accident; and to develop conclusions and judgments of need that may help prevent a recurrence of the accident. The scope also included the application of lessons learned from similar accidents within DOE. In addition to this detailed report, a companion document has also …
Date: July 25, 1997
Creator: Gerton, R.E.
System: The UNT Digital Library