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Theoretical atomic collision physics

Description: The current focus of the research is low-energy (collision v<<bound v{sub e}) inelastic collisions for selected systems that possess the characteristic that many intermediate states are strongly coupled, such as can occur in classes of excited-atom (including Rydberg atom) collisions with atoms, molecules and positive and negative ions: (1) We are interested in the dependence of various differential and total cross sections on the angular momentum of the initial excited state and on the alignme… more
Date: March 9, 1992
Creator: Lane, N.F.
Partner: UNT Libraries Government Documents Department
open access

Fundamental mechanisms in flue gas conditioning

Description: The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ask properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of … more
Date: January 9, 1992
Creator: Bush, P. V. & Snyder, T. R.
Partner: UNT Libraries Government Documents Department
open access

Fundamental mechanisms in flue-gas conditioning

Description: The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ash properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of … more
Date: January 9, 1992
Creator: Dahlin, R. S.; Vann Bush, P. & Snyder, T. R.
Partner: UNT Libraries Government Documents Department
open access

Chemical and thermal stability of refrigerant-lubricant mixtures with metals

Description: This report presents the results of a sealed tube stability study on twenty-one refrigerant-lubricant mixtures selected from the following groupings: HFCs R-32, R-125, R-134, R-134a, R-143a, and R-152a with one or more lubricants selected from among three pentaerythritol esters and three polyalkylene glycols. All lubricants were carefully predried to 25 ppm or less moisture content. HCFCs R-22, R-123, R-124, and R-142b, as well as CFC R-11, with one or more lubricants selected from among two mi… more
Date: October 9, 1992
Creator: Huttenlocher, D.F.
Partner: UNT Libraries Government Documents Department
open access

ARTI Refrigerant Database

Description: The database provides bibliographic citations and abstracts for publications that may be useful in research and design of air- conditioning and refrigeration equipment. The database identifies sources of specific information on R-32, R-123, R-124, R-125, R-134, R-134a, R-141b, R-142b, R-143a, R-152a, R-245ca, R-290 (propane), R- 717 (ammonia), ethers, and others as well as azeotropic and zeotropic and zeotropic blends of these fluids. It addresses lubricants including alkylbenzene, polyalkylene… more
Date: November 9, 1992
Creator: Calm, J.M.
Partner: UNT Libraries Government Documents Department
open access

Steam explosion analysis in support of the SRS reactor safety assessment

Description: This report describes the application of two steam explosion models in support of the Probabilistic Risk Assessment (PRA) for the Savannah River Reactors. Theoretical models are required to estimate steam explosion yields in terms of kinetic energy, pressure shock and steam generated by the event. These quantities are used in the PRA to determine fission product barrier integrity in the reactor confinement following a hypothetical steam explosion. The basic preconditions for a steam explosion a… more
Date: October 9, 1992
Creator: Vonderfecht, B.E. & Smith, D.C.
Partner: UNT Libraries Government Documents Department
open access

A comparison of reverse osmosis membrane cleaning methods

Description: Testing was conducted at TNX to evaluate the reverse osmosis (RO) cleaning methods in use at the F/H Effluent Treatment Facility (ETF). The present ETF membrane cleaning protocol involves a low-pressure-no-permeation method using NAOH. This work has examined the effectiveness of the present ETF method, due to the lack of improvement following the cleanings sometimes observed. This study has evaluated both low pressure (15--20 psi with no permeation) and high pressure (200 psi with permeation) c… more
Date: January 9, 1992
Creator: Siler, J.L.
Partner: UNT Libraries Government Documents Department
open access

A comparison of reverse osmosis membrane cleaning methods

Description: Testing was conducted at TNX to evaluate the reverse osmosis (RO) cleaning methods in use at the F/H Effluent Treatment Facility (ETF). The present ETF membrane cleaning protocol involves a low-pressure-no-permeation method using NAOH. This work has examined the effectiveness of the present ETF method, due to the lack of improvement following the cleanings sometimes observed. This study has evaluated both low pressure (15--20 psi with no permeation) and high pressure (200 psi with permeation) c… more
Date: January 9, 1992
Creator: Siler, J. L.
Partner: UNT Libraries Government Documents Department
open access

Uranium in the Savannah River Site environment

Description: The purpose of this report is to consolidate the history of environmental uranium studies conducted by SRS and to describe the status of uranium in the environment. The report is intended to be a ``living document`` that will be updated periodically. This draft issue, February 1992, documents studies that occurred from 1954 to 1989. Data in this report are taken primarily from annual and semiannual environmental reports for SRS. Semiannual reports were published from 1954 through 1962. Annual r… more
Date: December 9, 1992
Creator: Evans, A. G.; Bauer, L. R.; Haselow, J. S.; Hayes, D. W.; Martin, H. L.; McDowell, W. L. et al.
Partner: UNT Libraries Government Documents Department
open access

Theoretical atomic collision physics. Progress report, July 1, 1991--June 30, 1992

Description: The current focus of the research is low-energy (collision v<<bound v{sub e}) inelastic collisions for selected systems that possess the characteristic that many intermediate states are strongly coupled, such as can occur in classes of excited-atom (including Rydberg atom) collisions with atoms, molecules and positive and negative ions: (1) We are interested in the dependence of various differential and total cross sections on the angular momentum of the initial excited state and on the alignme… more
Date: March 9, 1992
Creator: Lane, N. F.
Partner: UNT Libraries Government Documents Department
open access

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland. Progress report, January 15, 1991--July 14, 1992

Description: Peatlands are one of the most important terrestrial reservoirs in the global cycle for carbon, and are a major source for atmospheric methane. However, little is known about the dynamics of these carbon reservoirs or their feedback mechanisms with the pool of atmospheric CO{sub 2} during the Holocene. Specifically, it is unknown whether large peat basins are sources, sinks, or steady-state reservoirs for the global carbon cycle. In particular, the production and transport of methane, carbon dio… more
Date: April 9, 1992
Creator: Siegel, D. I.
Partner: UNT Libraries Government Documents Department
open access

Development and testing of industrial scale, coal fired combustion system, Phase 3. First quarterly technical progress report, Part 1, October 1, 1991--December 31, 1991; Part 2, January 1, 1992--March 31, 1992

Description: The primary objective of the present Phase 3 effort is to perform the final testing at a 20 MNBtu/hr commercial scale of an air cooled, slogging coal combustor for application to industrial steam boilers and power plants. The focus of the test effort will be on combustor durability, automatic control of the combustor`s operation, and optimum environmental control of emissions inside the combustor. In connection with the latter, the goal is to achieve 0.4 lb/MMBtu of SO{sub 2} emissions, 0.2 lb/… more
Date: May 9, 1992
Creator: Zauderer, B.
Partner: UNT Libraries Government Documents Department
open access

Microtube strip heat exchanger. Final technical report

Description: The purpose of this contract has been to explore the limits of miniaturization of heat exchangers with the goals of (1) improving the theoretical understanding of laminar heat exchangers, (2) evaluating various manufacturing difficulties, and (3) identifying major applications for the technology. A low-cost, ultra-compact heat exchanger could have an enormous impact on industry in the areas of cryocoolers and energy conversion. Compact cryocoolers based on the reverse Brayton cycle (RBC) would … more
Date: July 9, 1992
Creator: Doty, F. D.
Partner: UNT Libraries Government Documents Department
open access

Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 7, Appendices

Description: This volume contains appendices for: atomization test report; cost estimation model--pelletization material balance and equipment selection; cost estimation model--pelletization capital investment estimates; cost estimation--pelletization operating cost estimates; cost estimation model--pellet-CWF formulation material balance and equipment selection; cost estimation model--pellet-CWF capital investment estimates; cost estimation model--pellet-CWF operating cost estimates; and cost estimation mo… more
Date: June 9, 1992
Partner: UNT Libraries Government Documents Department
open access

Steam explosion analysis in support of the SRS reactor safety assessment

Description: This report describes the application of two steam explosion models in support of the Probabilistic Risk Assessment (PRA) for the Savannah River Reactors. Theoretical models are required to estimate steam explosion yields in terms of kinetic energy, pressure shock and steam generated by the event. These quantities are used in the PRA to determine fission product barrier integrity in the reactor confinement following a hypothetical steam explosion. The basic preconditions for a steam explosion a… more
Date: October 9, 1992
Creator: Vonderfecht, B. E. & Smith, D. C.
Partner: UNT Libraries Government Documents Department
open access

Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 7, January 1, 1992-- March 31, 1992

Description: Work in this quarter focused on completing (1) the final batch of pilot-scale disk pellets, (2) storage, handling, and transportation evaluation, (3) pellet reslurrying and atomization studies, and (4) cost estimation for pellet and slurry production. Disk pelletization of Elkhorn coal was completed this quarter. Pellets were approximately 1/2- to 3/4-in. in diameter. Pellets, after thermal curing were strong and durable and exceeded the pellet acceptance criteria. Storage and handling tests in… more
Date: June 9, 1992
Creator: Conkle, H. N.
Partner: UNT Libraries Government Documents Department
open access

Experimental investigations of strong interactions in non-perturbative QCD region

Description: We have experimentally investigated the reactions {pi} {sup {minus}}p {yields} {phi}{phi}n (OZI forbidden), {phi}K{sup +}K{sup {minus}}n (OZI allowed), K{sup {minus}}p {yields}{phi}{phi}{l brace}{sub {sigma}}{sup {lambda}}{r brace} (OZI allowed),{phi}K{sup +}K{sup {minus}}{l brace}{sub {sigma}}{sup {lambda}}{r brace}(OZI allowed),{bar p}p {yields} {phi} {phi} {pi} {sup 0} (OZI forbidden), {phi}K{sup +}K{sup {minus}}{pi}{sup 0} (OZI allowed). By comparing the OZI forbidden (glueball filter) reac… more
Date: September 9, 1992
Creator: Lindenbaum, S. J. & Samuel, S.
Partner: UNT Libraries Government Documents Department
open access

Microtube strip heat exchanger

Description: The purpose of this contract has been to explore the limits of miniaturization of heat exchangers with the goals of (1) improving the theoretical understanding of laminar heat exchangers, (2) evaluating various manufacturing difficulties, and (3) identifying major applications for the technology. A low-cost, ultra-compact heat exchanger could have an enormous impact on industry in the areas of cryocoolers and energy conversion. Compact cryocoolers based on the reverse Brayton cycle (RBC) would … more
Date: July 9, 1992
Creator: Doty, F. D.
Partner: UNT Libraries Government Documents Department
open access

Fundamental mechanisms in flue-gas conditioning. Topical report No. 1, Literature review and assembly of theories on the interactions of ash and FGD sorbents

Description: The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ash properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of … more
Date: January 9, 1992
Creator: Dahlin, R. S.; Vann Bush, P. & Snyder, T. R.
Partner: UNT Libraries Government Documents Department
open access

Chemical and thermal stability of refrigerant-lubricant mixtures with metals. Final report

Description: This report presents the results of a sealed tube stability study on twenty-one refrigerant-lubricant mixtures selected from the following groupings: HFCs R-32, R-125, R-134, R-134a, R-143a, and R-152a with one or more lubricants selected from among three pentaerythritol esters and three polyalkylene glycols. All lubricants were carefully predried to 25 ppm or less moisture content. HCFCs R-22, R-123, R-124, and R-142b, as well as CFC R-11, with one or more lubricants selected from among two mi… more
Date: October 9, 1992
Creator: Huttenlocher, D. F.
Partner: UNT Libraries Government Documents Department
open access

Foam application of oxalic acid as a decontamination waste minimization tool

Description: The use of foam in applying decontamination solutions has proven to bc an effective waste minimization strategy. Initial trials in 299-H indicated a 70% reduction in waste volume. An overpressurization of the equipment during a decon operation. however, indicated the need to better define chemical compatibility and to develop inherently safer equipment. A foamer system with an open solution vessel and 1:1 ratio pneumatically actuated pump was modified, tested and found to operate satisfactorily… more
Date: March 9, 1992
Creator: Peterson, K. D.
Partner: UNT Libraries Government Documents Department
open access

Technical bases for precipitate hydrolysis process operating parameters. Revision 1

Description: This report provides the experimental data and rationale in support of the operating parameters for tetraphenylborate precipitate hydrolysis specified in WSRC-RP-92-737. The report is divided into two sections, the first dealing with lab-scale precipitate hydrolysis experimentation while the second part addresses large-scale runs conducted to demonstrate the revised operating parameters in the Precipitate Hydrolysis Experimental Facility (PHEF). The program was in conjunction with reducing the … more
Date: November 9, 1992
Creator: Bannochie, C. J. & Lambert, D. P.
Partner: UNT Libraries Government Documents Department
open access

Stanford Geothermal Program [quarterly technical report, October--December 1991]

Description: Progress is reported on the following: experimental measurements of steam adsorption, estimation of adsorption parameters from experimental and field data, analysis of adsorption and desorption during injection into vapor-dominated reservoirs, and analyzing multiwell pressure data. (MHR)
Date: March 9, 1992
Partner: UNT Libraries Government Documents Department
open access

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland

Description: Peatlands are one of the most important terrestrial reservoirs in the global cycle for carbon, and are a major source for atmospheric methane. However, little is known about the dynamics of these carbon reservoirs or their feedback mechanisms with the pool of atmospheric CO{sub 2} during the Holocene. Specifically, it is unknown whether large peat basins are sources, sinks, or steady-state reservoirs for the global carbon cycle. In particular, the production and transport of methane, carbon dio… more
Date: April 9, 1992
Creator: Siegel, D. I.
Partner: UNT Libraries Government Documents Department
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