States

ARTI Refrigerant Database (open access)

ARTI Refrigerant Database

The Refrigerant Database consolidates and facilitates access to information to assist industry in developing equipment using alternative refrigerants. The underlying purpose is to accelerate phase out of chemical compounds of environmental concern. The database provides bibliographic citations and abstracts for publications that may be useful in research and design of air- conditioning and refrigeration equipment. The complete documents are not included, though some may be added at a later date. The database identifies sources of specific information on R-32, R-123, R-124, R- 125, R-134a, R-141b, R142b, R-143a, R-152a, R-290 (propane), R-717 (ammonia), ethers, and others as well as azeotropic and zeotropic blends of these fluids. It addresses polyalkylene glycol (PAG), ester, and other lubricants. It also references documents addressing compatibility of refrigerants and lubricants with metals, plastics, elastomers, motor insulation, and other materials used in refrigerant circuits.
Date: April 30, 1992
Creator: Calm, J.M.
Object Type: Report
System: The UNT Digital Library
ARTI Refrigerant Database (open access)

ARTI Refrigerant Database

The Refrigerant Database consolidates and facilitates access to information to assist industry in developing equipment using alternative refrigerants. The underlying purpose is to accelerate phase out of chemical compounds of environmental concern. The database provides bibliographic citations and abstracts for publications that may be useful in research and design of air- conditioning and refrigeration equipment. The complete documents are not included, though some may be added at a later date. The database identifies sources of specific information on R-32, R-123, R-124, R- 125, R-134a, R-141b, R142b, R-143a, R-152a, R-290 (propane), R-717 (ammonia), ethers, and others as well as azeotropic and zeotropic blends of these fluids. It addresses polyalkylene glycol (PAG), ester, and other lubricants. It also references documents addressing compatibility of refrigerants and lubricants with metals, plastics, elastomers, motor insulation, and other materials used in refrigerant circuits.
Date: April 30, 1992
Creator: Calm, J. M.
Object Type: Report
System: The UNT Digital Library
An automated tool for evaluating compliance and providing assistance with building energy standards during design (open access)

An automated tool for evaluating compliance and providing assistance with building energy standards during design

In an effort to encourage the maximum cost-effective level of energy efficiency in new building design, energy-efficiency standards have become more location-specific and performance-based. As a result, standards often provide more than one path for ensuring and demonstrating that a design complies, but at the cost of increased complexity. In addition, the burden of remedying a noncompliant design rests on the designers' knowledge and experience, with only general guidance provided by the standards. As part of efforts in the US Department of Energy's (DOE's) Advanced Energy Design and Operation Technologies (AEDOT) project, a team at DOE's Pacific Northwest Laboratory is developing a computer program known as the Energy Standards Intelligent Design Tool (ES-IDT). The ES-IDT is one component of a prototype computer-based building design environment. It performs automatic compliance checking for parts of ASHRAE/IES Standard 90.1-1989 and provides designers assistance in bringing noncomplying designs into compliance. This paper describes the ES-IDT, the functions it provides, and how it is integrated into the design process via the AEDOT prototype building design environment. 9 refs.
Date: April 30, 1992
Creator: Quadrel, R.W.; Brambley, M.R. & Stratton, R.C.
Object Type: Article
System: The UNT Digital Library
An automated tool for evaluating compliance and providing assistance with building energy standards during design (open access)

An automated tool for evaluating compliance and providing assistance with building energy standards during design

In an effort to encourage the maximum cost-effective level of energy efficiency in new building design, energy-efficiency standards have become more location-specific and performance-based. As a result, standards often provide more than one path for ensuring and demonstrating that a design complies, but at the cost of increased complexity. In addition, the burden of remedying a noncompliant design rests on the designers` knowledge and experience, with only general guidance provided by the standards. As part of efforts in the US Department of Energy`s (DOE`s) Advanced Energy Design and Operation Technologies (AEDOT) project, a team at DOE`s Pacific Northwest Laboratory is developing a computer program known as the Energy Standards Intelligent Design Tool (ES-IDT). The ES-IDT is one component of a prototype computer-based building design environment. It performs automatic compliance checking for parts of ASHRAE/IES Standard 90.1-1989 and provides designers assistance in bringing noncomplying designs into compliance. This paper describes the ES-IDT, the functions it provides, and how it is integrated into the design process via the AEDOT prototype building design environment. 9 refs.
Date: April 30, 1992
Creator: Quadrel, R. W.; Brambley, M. R. & Stratton, R. C.
Object Type: Article
System: The UNT Digital Library
Automatic ID heat load generation in ANSYS code (open access)

Automatic ID heat load generation in ANSYS code

Detailed power density profiles are critical in the execution of a thermal analysis using a finite element (FE) code such as ANSYS. Unfortunately, as yet there is no easy way to directly input the precise power profiles into ANSYS. A straight-forward way to do this is to hand-calculate the power of each node or element and then type the data into the code. Every time a change is made to the FE model, the data must be recalculated and reentered. One way to solve this problem is to generate a set of discrete data, using another code such as PHOTON2, and curve-fit the data. Using curve-fitted formulae has several disadvantages. It is time consuming because of the need to run a second code for generation of the data, curve-fitting, and doing the data check, etc. Additionally, because there is no generality for different beamlines or different parameters, the above work must be repeated for each case. And, errors in the power profiles due to curve-fitting result in errors in the analysis. To solve the problem once and for all and with the capability to apply to any insertion device (ID), a program for ED power profile was written in ANSYS …
Date: April 30, 1992
Creator: Wang, Zhibi
Object Type: Report
System: The UNT Digital Library
Cloud and aerosol characterization for the ARM central facility: Multiple remote sensor techniques development (open access)

Cloud and aerosol characterization for the ARM central facility: Multiple remote sensor techniques development

This research project designed to investigate how atmospheric remote sensing technology can best be applied to the characterization of the cloudy atmosphere. Our research program addresses basic atmospheric remote sensing questions, but at the same time is clearly directed toward providing information crucial to the ARM (Atmospheric Remote Sensing) program and for application to the Clouds and Radiation Testbed (CART). The instrumentation that is being brought into play includes a variety of art-of-the-art sensors. Available at NOAA WPL are polarization Doppler K{sub a}-band (0.86 mm) and X-band (3.2 cm) radars, a C0{sub 2}(10.6 {mu}m) Doppler lidar with sequential ' polarization measurement capabilities, a three-channel (20.6, 31.65 and 90 GHz) microwave radiometer, and variety of visible and infrared radiometers. Instrumentation at the University of Utah Facility for Atmospheric Remote Sensing (FARS) includes a polarization ruby (0.643 {mu}m) lidar, a narrow-beam (0.14{degree}) mid-infrared (9.5--11.5 {mu}m) radiometer coaligned with the lidar, several other radiometers in the visible and infrared spectral regions, and an advanced two-color (1.06 and 0.532 {mu}m), four-channel Polarization Diversity Lidar (PDL) and all-sky video imaging system that have only recently been developed under the ARM IDP.
Date: April 30, 1992
Creator: Sassen, K.
Object Type: Report
System: The UNT Digital Library
Cloud and aerosol characterization for the ARM central facility: Multiple remote sensor techniques development. Technical progress report (open access)

Cloud and aerosol characterization for the ARM central facility: Multiple remote sensor techniques development. Technical progress report

This research project designed to investigate how atmospheric remote sensing technology can best be applied to the characterization of the cloudy atmosphere. Our research program addresses basic atmospheric remote sensing questions, but at the same time is clearly directed toward providing information crucial to the ARM (Atmospheric Remote Sensing) program and for application to the Clouds and Radiation Testbed (CART). The instrumentation that is being brought into play includes a variety of art-of-the-art sensors. Available at NOAA WPL are polarization Doppler K{sub a}-band (0.86 mm) and X-band (3.2 cm) radars, a C0{sub 2}(10.6 {mu}m) Doppler lidar with sequential ` polarization measurement capabilities, a three-channel (20.6, 31.65 and 90 GHz) microwave radiometer, and variety of visible and infrared radiometers. Instrumentation at the University of Utah Facility for Atmospheric Remote Sensing (FARS) includes a polarization ruby (0.643 {mu}m) lidar, a narrow-beam (0.14{degree}) mid-infrared (9.5--11.5 {mu}m) radiometer coaligned with the lidar, several other radiometers in the visible and infrared spectral regions, and an advanced two-color (1.06 and 0.532 {mu}m), four-channel Polarization Diversity Lidar (PDL) and all-sky video imaging system that have only recently been developed under the ARM IDP.
Date: April 30, 1992
Creator: Sassen, K.
Object Type: Report
System: The UNT Digital Library
Development of a reburning boiler process model (open access)

Development of a reburning boiler process model

The overall objective of this program is to integrate Energy and Environmental Research expertise in boiler reburning performance evaluation into a package of analytical computer tools. Specific objectives of the program are to develop a computational capability with the following features: (a) can be used to predict the impact of gas reburning application on thermal conditions in the boiler radiant furnace, and on overall boiler performance. (b) can estimate gas reburning NO{sub x} reduction effectiveness based on specific reburning configurations and furnace/boiler configurations. (c) can be used as an analytical tool to evaluate the impact of boiler process parameters (e.g., fuel switching and changes in boiler operating conditions) on boiler thermal performance. (d) is adaptable to most boiler designs (tangential and wall fire boilers) and a variety of fuels (solid, liquid, gaseous and slurried fuels). (e) is sufficiently user friendly to be exercisable by engineers with a reasonable knowledge of boilers, and with reasonable computer skills. Here, user friendly'' means that the user will be guided by computer codes during the course of setting up individual input files for the boiler performance model.
Date: April 30, 1992
Creator: Wu, K. T.
Object Type: Report
System: The UNT Digital Library
Development of a reburning boiler process model. Second quarterly progress report, January 1, 1992--March 31, 1992 (open access)

Development of a reburning boiler process model. Second quarterly progress report, January 1, 1992--March 31, 1992

The overall objective of this program is to integrate Energy and Environmental Research expertise in boiler reburning performance evaluation into a package of analytical computer tools. Specific objectives of the program are to develop a computational capability with the following features: (a) can be used to predict the impact of gas reburning application on thermal conditions in the boiler radiant furnace, and on overall boiler performance. (b) can estimate gas reburning NO{sub x} reduction effectiveness based on specific reburning configurations and furnace/boiler configurations. (c) can be used as an analytical tool to evaluate the impact of boiler process parameters (e.g., fuel switching and changes in boiler operating conditions) on boiler thermal performance. (d) is adaptable to most boiler designs (tangential and wall fire boilers) and a variety of fuels (solid, liquid, gaseous and slurried fuels). (e) is sufficiently user friendly to be exercisable by engineers with a reasonable knowledge of boilers, and with reasonable computer skills. Here, ``user friendly`` means that the user will be guided by computer codes during the course of setting up individual input files for the boiler performance model.
Date: April 30, 1992
Creator: Wu, K. T.
Object Type: Report
System: The UNT Digital Library
Development of biological coal gasification (MicGAS Process) (open access)

Development of biological coal gasification (MicGAS Process)

In order for the coal biogasification process to be economically feasible, an inexpensive nutrient amendment must be found to replace the Difco[trademark] yeast extract and tryptic soy broth (YE/TSB) used in the current medium formulation. Five products have been identified which support greater methane production from Texas lignite than YE/TSB.
Date: April 30, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Development of biological coal gasification (MicGAS Process). Seventh quarterly report (open access)

Development of biological coal gasification (MicGAS Process). Seventh quarterly report

In order for the coal biogasification process to be economically feasible, an inexpensive nutrient amendment must be found to replace the Difco{trademark} yeast extract and tryptic soy broth (YE/TSB) used in the current medium formulation. Five products have been identified which support greater methane production from Texas lignite than YE/TSB.
Date: April 30, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Hydrogen Separation by Ceramic Membranes in Coal Gasification (open access)

Hydrogen Separation by Ceramic Membranes in Coal Gasification

Project Objectives are to develop hydrogen-permselective ceramic membranes for water-gas shift membrane-reactor suitable for hydrogen production from coal gas and evaluate the technical and economic potential of the membrane-reactor. During the reporting period exploratory experiments begun on a membrane preparation technique aimed at providing higher membrane permeance. The new preparation technique involves two stages. The first stage is the formation of a layer of silica gel by a two-phase interfacial reaction within the pores of the substrate. The gel is then dried and calcined yielding a microporous (pore diameter below 10 [Angstrom]) silica layer within the pores of the substrate tube. The second stage involves one-sided chemical vapor deposition using the SiCl[sub 4]-H[sub 2]O reaction to close up the micropores of the gel layer and produce the final hydrogen permselective membrane. Chemical reactions involved are described.
Date: April 30, 1992
Creator: Gavalas, G. R.
Object Type: Report
System: The UNT Digital Library
Hydrogen Separation by Ceramic Membranes in Coal Gasification. Quarterly Progress Report, January 1, 1992--March 31, 1992 (open access)

Hydrogen Separation by Ceramic Membranes in Coal Gasification. Quarterly Progress Report, January 1, 1992--March 31, 1992

Project Objectives are to develop hydrogen-permselective ceramic membranes for water-gas shift membrane-reactor suitable for hydrogen production from coal gas and evaluate the technical and economic potential of the membrane-reactor. During the reporting period exploratory experiments begun on a membrane preparation technique aimed at providing higher membrane permeance. The new preparation technique involves two stages. The first stage is the formation of a layer of silica gel by a two-phase interfacial reaction within the pores of the substrate. The gel is then dried and calcined yielding a microporous (pore diameter below 10 {Angstrom}) silica layer within the pores of the substrate tube. The second stage involves one-sided chemical vapor deposition using the SiCl{sub 4}-H{sub 2}O reaction to close up the micropores of the gel layer and produce the final hydrogen permselective membrane. Chemical reactions involved are described.
Date: April 30, 1992
Creator: Gavalas, G. R.
Object Type: Report
System: The UNT Digital Library
Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads featuring diquinone moieties (open access)

Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads featuring diquinone moieties

This project involves the design, synthesis and photophysical study of complex molecular systems engineered to achieve long lived charge separated states by a biomimetic, photoinitiated multistep electron transfer process. The use of these artificial systems to investigate different electron and energy transfer strategies will allow the evolution of more efficient molecular devices for the gathering of light energy and its transformation into chemical potential energy. The three major aspects of the work emphasized in the initial proposal are: design and synthesis of molecular devices incorporating new quinone moieties, synthesis and spectroscopic studies of molecular tetrads and pentads featuring modified porphyrin-diquinone linkages, and new photochemical and photophysical investigations of tetrads and pentads, including the development of methods for harvesting the energy stored in long-lived charge separated states.
Date: April 30, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads featuring diquinone moieties. Technical progress report, September 1, 1991--30 April 1992 (open access)

Photoinitiated electron transfer in multichromophoric species: Synthetic tetrads and pentads featuring diquinone moieties. Technical progress report, September 1, 1991--30 April 1992

This project involves the design, synthesis and photophysical study of complex molecular systems engineered to achieve long lived charge separated states by a biomimetic, photoinitiated multistep electron transfer process. The use of these artificial systems to investigate different electron and energy transfer strategies will allow the evolution of more efficient molecular devices for the gathering of light energy and its transformation into chemical potential energy. The three major aspects of the work emphasized in the initial proposal are: design and synthesis of molecular devices incorporating new quinone moieties, synthesis and spectroscopic studies of molecular tetrads and pentads featuring modified porphyrin-diquinone linkages, and new photochemical and photophysical investigations of tetrads and pentads, including the development of methods for harvesting the energy stored in long-lived charge separated states.
Date: April 30, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
A physico-chemical study of some areas of fundamental significance to biophysics (open access)

A physico-chemical study of some areas of fundamental significance to biophysics

This report discusses the following topics on Biophysics: Radiation signatures; electronic structure of steroids and vitamins; laser optogalvanic effect; vacuum ultraviolet spectroscopy; and ozone.
Date: April 30, 1992
Creator: McGlynn, S. P. & Kumar, Devendra
Object Type: Report
System: The UNT Digital Library
A physico-chemical study of some areas of fundamental significance to biophysics (open access)

A physico-chemical study of some areas of fundamental significance to biophysics

This report discusses the following topics: Radiation signatures; photoelectron spectroscopy of biologically active molecules; laser optogalvanic effect; magnetic circular dichroism; photochemistry of halogenated molecules; and density effects on high-n rydbergs.
Date: April 30, 1992
Creator: McGlynn, S. P. & Kumar, Devendra
Object Type: Report
System: The UNT Digital Library
A physico-chemical study of some areas of fundamental significance to biophysics. Annual report, 1991--1992 (open access)

A physico-chemical study of some areas of fundamental significance to biophysics. Annual report, 1991--1992

This report discusses the following topics: Radiation signatures; photoelectron spectroscopy of biologically active molecules; laser optogalvanic effect; magnetic circular dichroism; photochemistry of halogenated molecules; and density effects on high-n rydbergs.
Date: April 30, 1992
Creator: McGlynn, S. P. & Kumar, D.
Object Type: Report
System: The UNT Digital Library
A physico-chemical study of some areas of fundamental significance to biophysics. Three-year comprehensive report, 1989--1992 (open access)

A physico-chemical study of some areas of fundamental significance to biophysics. Three-year comprehensive report, 1989--1992

This report discusses the following topics on Biophysics: Radiation signatures; electronic structure of steroids and vitamins; laser optogalvanic effect; vacuum ultraviolet spectroscopy; and ozone.
Date: April 30, 1992
Creator: McGlynn, S. P. & Kumar, D.
Object Type: Report
System: The UNT Digital Library
The physics of kaon decays: CP violation and lepton flavor nonconservation (open access)

The physics of kaon decays: CP violation and lepton flavor nonconservation

OAK B188 The physics of kaon decays: CP violation and lepton flavor nonconservation. We discuss here the research that is likely to be done in the 1990's in the study of kaon decays. We concentrate on searches for direct CP violation and for the violation of electron- and muon-number, including approved and proposed experiments at existing facilities, and those which could be done at a facility using the proposed Fermilab Main Injector.
Date: April 30, 1992
Creator: Molzon, William R. & Winstein, Bruce D.
Object Type: Report
System: The UNT Digital Library
Rapid Pressure Swing Absorption Cleanup of Post-Shift Reactor Synthesis Gas (open access)

Rapid Pressure Swing Absorption Cleanup of Post-Shift Reactor Synthesis Gas

This investigation is concerned with the separation of gas mixtures using a novel concept of rapid pressure swing absorption (RAPSAB) of gas in a stationary absorbent liquid through gas-liquid interfaces immobilized in the pore mouths of hydrophobic microporous membranes. The process is implemented in a module well-packed with hydrophobic microporous hollow fiber membranes. The specific objectives are (1) to develop a theoretical model which will provide guidelines for selecting an efficient RAPSAB process cycle which includes desorption; (2) to demonstrate the concept experimentally with a simple gas mixture (e.g., Co{sub 2}-N{sub 2}) and a simple absorbent liquid such as water, and (3) to extend the concept to reactive absorbent liquids for the separation of CO, Co{sub 2} from the post-shift reactor synthesis gas. A simplified theoretical description of the novel rapid pressure swing absorption process has been developed.
Date: April 30, 1992
Creator: Sirkar, K. K.; Majumdar, S. & Bhaumik, S. (New Jersey Inst. of Tech., Newark, NJ (United States))
Object Type: Report
System: The UNT Digital Library
Rapid Pressure Swing Absorption Cleanup of Post-Shift Reactor Synthesis Gas. Technical Progress Report, January 1, 1992--March 31, 1992 (open access)

Rapid Pressure Swing Absorption Cleanup of Post-Shift Reactor Synthesis Gas. Technical Progress Report, January 1, 1992--March 31, 1992

This investigation is concerned with the separation of gas mixtures using a novel concept of rapid pressure swing absorption (RAPSAB) of gas in a stationary absorbent liquid through gas-liquid interfaces immobilized in the pore mouths of hydrophobic microporous membranes. The process is implemented in a module well-packed with hydrophobic microporous hollow fiber membranes. The specific objectives are (1) to develop a theoretical model which will provide guidelines for selecting an efficient RAPSAB process cycle which includes desorption; (2) to demonstrate the concept experimentally with a simple gas mixture (e.g., Co{sub 2}-N{sub 2}) and a simple absorbent liquid such as water, and (3) to extend the concept to reactive absorbent liquids for the separation of CO, Co{sub 2} from the post-shift reactor synthesis gas. A simplified theoretical description of the novel rapid pressure swing absorption process has been developed.
Date: April 30, 1992
Creator: Sirkar, K. K.; Majumdar, S. & Bhaumik, S.
Object Type: Report
System: The UNT Digital Library
Remediation plan for fluorescent light fixtures containing polychlorinated biphenyls (PCBs) (open access)

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

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 …
Date: April 30, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Research development and demonstration of a fuel cell/battery powered bus system. Interim report, August 1, 1991--April 30, 1992 (open access)

Research development and demonstration of a fuel cell/battery powered bus system. Interim report, August 1, 1991--April 30, 1992

This report describes the progress in the Georgetown University research, development and demonstration project of a fuel cell/battery powered bus system. The topics addressed in the report include vehicle design and application analysis, technology transfer activities, coordination and monitoring of system design and integration contractor, application of fuel cells to other vehicles, current problems, work planned, and manpower, cost and schedule reports.
Date: April 30, 1992
Creator: Romano, S. & Wimmer, R.
Object Type: Report
System: The UNT Digital Library