Coal as an option for power generation in US territories of the Pacific (open access)

Coal as an option for power generation in US territories of the Pacific

A survey of general considerations relating to the use of coal in US territories and trust territories of the Pacific suggests that coal is a viable option for power generation. Future coal supplies, principally from Australia and the west coast of America, promise to be more than adequate, but large bulk carriers will probably not be able to land coal directly because of inadequate port facilities. Hence, smaller than Panamax-class vessels (60,000 dwt) or some arrangement utilizing self-loading barges or lighters would have to be used. Except for Guam, with peak power requirements on the order of 175 MW/sub e/, most territories have current, albeit inadequate, installations of 1 to 25 MW/sub e/ Turnkey, conventional-coal-fired, electrical-power generating systems are available in that size range. US environmental laws are now applicable to Guam and American Samoa; the trust territories are exempt. However, the small power requirements of many small islands will qualify for exemption from the New Source Performance Standards called for in the Clean Air Act. The principal problems with coal use in the territories, apart from the shallow draft of most harbors, are the limited amount of land available and the high capital costs associated with conversion. Ocean dumping …
Date: November 30, 1981
Creator: Borg, I. Y.
Object Type: Report
System: The UNT Digital Library
Flux of energy and essential elements through the continental shelf ecosystem. Progress report (open access)

Flux of energy and essential elements through the continental shelf ecosystem. Progress report

There are three distinct but not mutually exclusive areas of research in this contract, studies of intrusions of the west wall of the Gulf Stream onto the outer continental shelf, studies of the flux of materials across nearshore density fronts, and advances in understanding of the planktonic food web of the continental shelf. Studies of frontal events on the outer and inner continental shelf involve distinctive physical and chemical regimes and have proven to require distinctive biological approaches. The studies of the food web run through our work on both of the frontal regimes, but certain aspects have become subjects in their own right. We have developed a simulation model of the flux of energy through the continental shelf food web which we believe to be more realistic than previous ones of its type. We have examined several of the many roles of dissolved organic compounds in sea water which originate either from release by phytoplankton, digestive processes or metabolites of zooplankton, or extracellular digestion of microorganisms. Methods have been developed under this contract to measure both the chelating capacity of naturally occurring organic materials and the copper concentration in the water. It has been possible to characterize the effects, …
Date: November 30, 1981
Creator: Pomeroy, L.R.
Object Type: Report
System: The UNT Digital Library
Geothermal district-heating potential for casinos/hotels in Reno, Nevada (open access)

Geothermal district-heating potential for casinos/hotels in Reno, Nevada

Results from the pre-feasibility study of a geothermal district heating system for greater Reno and the pre-feasibility study of providing geothermal heat to casinos/hotels located in downtown Reno by connection to the proposed district heating system (DHS) are combined. Geothermal sources were selected from published data. Potential users were selected from aerial and city planning maps, and published building and demographic information. Energy consumption data from the electric and gas utility was matched with consumption information from surveys of representative buildings by category and climatic data. As an example, a written survey was mailed to the casino/hotels and two on-site visits were made. Retrofit methodology and cost were examined for the casino/hotels and representative buildings. Based on the pre-feasibility studies, a geothermal district heating system for Reno appears technically and economically feasible. Furthermore, additional economic savings are achieved when the Reno casinos/hotels are connected to the DHS. Steamboat Hot Springs and a geothermal area east of downtown are the most promising geothermal sources for the DHS. The City of Reno has a large yearly heat load with an average heating degree days per year of 6022/sup 0/F days and a heating season greater than eight months.
Date: November 30, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Instrumentation Report No. 2: identification, evaluation, and remedial actions related to transducer failures at the spent fuel test-climax (open access)

Instrumentation Report No. 2: identification, evaluation, and remedial actions related to transducer failures at the spent fuel test-climax

The Spent Fuel Test-Climax (SFT-C) is a test of the feasibility of safe and reliable short-term storage and retrieval of spent fuel from commercial nuclear reactors. In support of operational and technical goals of the test, about 850 channels of instrumentation have been installed at the SFT-C. Failure of several near-field instruments began less than six months after emplacement of 11 canisters of spent fuel and activation of six thermally similar simulators. The failed units were linear potentiometers (used to make displacement measurements) and vibrating wire stressmeters (used to make change-in-stress measurements). This report discusses the observed problems and remedial actions taken to date.
Date: November 30, 1981
Creator: Patrick, W. C.; Carlson, R. C. & Rector, N. L.
Object Type: Report
System: The UNT Digital Library
Medium-energy nuclear physics research. Final technical progress report, May 1, 1971-November 30, 1981 (open access)

Medium-energy nuclear physics research. Final technical progress report, May 1, 1971-November 30, 1981

Final results are summarized for this program with the primary emphasis on measurement of ten independent parameters for proton-proton elastic scattering at 800 MeV and four independent such parameters at 650 MeV. Inelastic proton-proton reactions have also been measured at 800 MeV. Proton-deuteron elastic scattering cross sections and polarization analyzing powers have been obtained at 800 MeV. Proton-nucleus total and total reaction cross sections were measured at 700 MeV for a number of nuclei. Major instrumentation was designed and constructed to carry out this program.
Date: November 30, 1981
Creator: Willard, H.B.
Object Type: Report
System: The UNT Digital Library
Negative tandem mirror (open access)

Negative tandem mirror

A tandem mirror configuration can be created by combining hot electron end cell plasmas with neutral beam pumping. A region of large negative potential formed in each end cell confines electrons in the central cell. The requirement of charge neutrality causes the central cell potential to become negative with respect to ground in order to confine ions as well as electrons. We discuss the method of producing and calculating the desired axial potential profile, and show the calculated axial potential profile and plasma parameters for a negative configuration of TMX-Upgrade.
Date: November 30, 1981
Creator: Poulsen, P.; Allen, S. L.; Casper, T. A.; Grubb, D. P.; Jong, R. A.; Nexsen, W. E. et al.
Object Type: Article
System: The UNT Digital Library
Nuclear criticality information system (open access)

Nuclear criticality information system

The nuclear criticality safety program at LLNL began in the 1950's with a critical measurements program which produced benchmark data until the late 1960's. This same time period saw the rapid development of computer technology useful for both computer modeling of fissile systems and for computer-aided management and display of the computational benchmark data. Database management grew in importance as the amount of information increased and as experimental programs were terminated. Within the criticality safety program at LLNL we began at that time to develop a computer library of benchmark data for validation of computer codes and cross sections. As part of this effort, we prepared a computer-based bibliography of criticality measurements on relatively simple systems. However, it is only now that some of these computer-based resources can be made available to the nuclear criticality safety community at large. This technology transfer is being accomplished by the DOE Technology Information System (TIS), a dedicated, advanced information system. The NCIS database is described.
Date: November 30, 1981
Creator: Koponen, B. L. & Hampel, V. E.
Object Type: Article
System: The UNT Digital Library
TMI Unit-2 Technical Information and Examination Program Update (open access)

TMI Unit-2 Technical Information and Examination Program Update

Information is presented concerning a submerged demineralizer system for contaminated water; multilevel sampling; inspection of solar crane; entry on containment building; and shipment of EPICOR 2 resin canister.
Date: November 30, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Fokker-Planck calculations of electron cyclotron resonant heating (ECRH) in mirror geometry (open access)

Fokker-Planck calculations of electron cyclotron resonant heating (ECRH) in mirror geometry

A time dependent, bounce-averaged Fokker-Planck code, with quasi-linear diffusion at fundamental and second harmonic frequencies, has been used to study cold plasma trapping and heating of hot electrons in mirror geometry. Both electron-electron and electron-ion Coulomb collisions are included. The code can model either cavity heating (electric field throughout cavity as in EBT) or beam controlled heating (electric field spatially restricted as in the TMX-Upgrade tandem mirror). The heating method has implications for the equilibrium energy and anisotropy of the hot electrons. In TMX-Upgrade, off-midplane heating at the second harmonic in the thermal barrier is planned as a means to control anisotropy (T/sub parallel//T/sub perpendicular/. By spatially limiting (limit in B) the microwave beam and with strong single-pass absorption, the mean hot electron energy may also be controlled since the heating rate decreases at high energy due to the relativistic mass shift of the resonance to higher magnetic field.
Date: November 25, 1981
Creator: Stallard, B. W.; Matsuda, Y. & Nevins, W. M.
Object Type: Article
System: The UNT Digital Library
High-frequency microinstabilities in hot-electron plasmas (open access)

High-frequency microinstabilities in hot-electron plasmas

Instabilities with frequencies in the neighborhood of the electron cyclotron frequency are of interest in determining stable operating regimes of hot-electron plasmas in EBT devices and in tandem mirrors. Previous work used model distributions significantly different than those suggested by recent Fokker-Planck studies. We use much more realistic model distributions in a computer code that solves the full electromagnetic dispersion relation governing longitudinal and transverse waves in a uniform plasma. We allow for an arbitrary direction of wave propagation. Results for the whistler and upper-hybrid loss-cone instabilities are presented.
Date: November 24, 1981
Creator: Chen, Y. J.; Nevins, W. M. & Smith, G. R.
Object Type: Article
System: The UNT Digital Library
Safety assessment document for the dynamic test complex (Building 836) (open access)

Safety assessment document for the dynamic test complex (Building 836)

A safety assessment was performed to determine if potential accidents at the 836 Complex at Site 300 could present undue hazards to the general public, personnel at Site 300, or have an adverse effect on the environment. The credible accidents that might have an effect on these facilities or have off-site consequences were considered. These were earthquake, extreme wind (including missiles), lightning, flood, criticality, high explosive (H) detonation that disperses uranium and beryllium, spontaneous oxidation of plutonium, explosions due to finely divided particles, and a fire.
Date: November 24, 1981
Creator: Odell, B.N. & Pfeifer, H.E.
Object Type: Report
System: The UNT Digital Library
Electrical aspects of rainout (open access)

Electrical aspects of rainout

Rainout commonly denotes the aggregate of phenomena associated with precipitation scavenging of radioactivity from a cloud of nuclear debris that is within a natural rain cloud. (In contrast, the term, washout, is applicable when the nuclear cloud is below the rain cloud and the term, fallout, commonly denotes the direct gravitational settling of contaminated solid material from a nuclear cloud.) Nuclear debris aerosols may be scavenged within natural clouds by a variety of different physical processes which may involve diffusion, convection, impaction, nucleation, phoresis, turbulence, and/or electricity among others. Processes which involve electrical aspects are scrutinized for their susceptibility to the intimate presence of the radioactive-cloud environment. This particular choice of electrical processes is not accidental. Nearly all of the listed processes were examined earlier by Williams. His rough estimates suggested that electrical effects, and to a lesser extent turbulence, could enhance the scavenging of those submicron aerosols which reside in the size-range that bridges the minimum in the scavenging rate coefficient which is commonly called the Greenfield gap. This minimum in the scavenging-rate coefficient is created by the simultaneous reduction of scavenging via diffusion and the reduction of scavenging via inertial impaction. However, Williams omitted the specific influence of …
Date: November 23, 1981
Creator: Rosenkilde, C.E.
Object Type: Report
System: The UNT Digital Library
Simulation of multi-frequency ECRH (open access)

Simulation of multi-frequency ECRH

We use a test particle simulation code to investigate electron cyclotron heating in a magnetic mirror well. A comparison is made between heating with one frequency and heating with two closely spaced frequencies. The code follows electron orbits in the presence of one or two monochromatic ECRH waves using guiding center equations and an equation for the electron gyrophase. Coulomb collisions with electrons and ions are simulated as a Monte Carlo scattering process. We find for the parameters of SM-1 that at the fundamental resonance the heating rate, or velocity rf diffusion coefficient, begins to decrease significantly from the quasilinear value for epsilon/sub e/ greater than or equal to 10 keV due to superadiabatic effects. As suggested by Howard et al., using multiple frequencies pushes the superadiabatic boundary to higher energies. For a given energy, the optimum frequency separations for two frequencies are those which cause the axial bounce resonances to interlace; i.e., odd multiples of the bounce frequency, ..omega../sub b/. This interlacing increases the chance of resonance overlap and thus stochasticity. If the frequency difference is equal to an even multiple of ..omega../sub b/, the diffusion coefficient returns to near its one frequency value. More generally, for more than …
Date: November 23, 1981
Creator: Rognlien, T.D.
Object Type: Article
System: The UNT Digital Library
Hadronic Production of Prompt Muons. (open access)

Hadronic Production of Prompt Muons.

None
Date: November 22, 1981
Creator: Bodek, A.; Breedon, R.; Coleman, R. N.; Marsh, W.; Olsen, S.; Ritchie, J. L. et al.
Object Type: Article
System: The UNT Digital Library
High frame-rate neutron radiography of dynamic events (open access)

High frame-rate neutron radiography of dynamic events

A system has been developed to perform neutron radiographic analysis of dynamic events having a duration of several milliseconds. The system has been operated in the range of 2000 to 10,000 frames/second. Synchronization has provided high-speed-motion neutron radiographs for evaluation of the firing cycle of 7.62 mm munition rounds within a steel rifle barrel. The system has also been used to demonstrate the ability to produce neutron radiographic movies of two-phase flow. The equipment uses the Oregon State University TRIGA reactor capable of pulsing to 3000 MW peak power, a neutron beam collimator, a scintillator neutron conversion screen coupled to an image intensifier, and a 16 mm high speed movie camera. The peak neutron flux incident at the object position is approximately 4 x 10/sup 11/ n/cm/sup 2/s with a pulse, full width at half maximum, of 9 ms. Special studies have been performed on the scintillator conversion screens and on the effects of statistical limitations on the image quality. Modulation transfer function analysis has been used to assist in the evaluation of the system performance.
Date: November 20, 1981
Creator: Bossi, R. H.; Robinson, A. H. & Barton, J. P.
Object Type: Article
System: The UNT Digital Library
New England Energy Congress project. Final report, June 1978-July 1980 (open access)

New England Energy Congress project. Final report, June 1978-July 1980

From May 1978 until April 1979, 120 New Englanders volunteered for one of six committees to devise and consider energy policy recommendations for the region's twenty-five Member, six state Congressional delegation. Sponsored by the New England Congressional Caucus and Tufts University, the New England Energy Congress was funded by grants from the Economic Development Administration, US Department of Commerce and the Office of Environment, US Department of Energy. The results of the work of the 120 delegates and nine staff was a 500 page report, Blueprint for Energy Action, containing over 150 policy recommendations to the Congress, Executive agencies, state legislatures and municipalities. The New England Congressional Caucus responded in June 1979 with an Energy Package, including twenty (and ultimately twenty-five) legislative bills and several letters to federal agencies, based on the recommendations of the Energy Congress. Following the release of the report in June 1979, 55 delegates continued their efforts as members of the Implementation Group of the Energy Congress. In July 1980, this group released a volume of Strategy Papers designed to assist in the implementation of Energy Congress recommendations. As a result of this work, a broad array of energy activities were initiated in New England and …
Date: November 20, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Livermore flow cytometer (open access)

Livermore flow cytometer

A stable, easy to operate, flow cytometer was built for routine use by research personnel in a biology laboratory. A 5 watt argon-ion laser excites the fluorescent dyes in cells flowing through a quartz flow chamber. A f/0.95 TV camera lens collects the fluorescent and scattered light and directs it through color separation filters and a beam splitter onto two photomultiplier tubes. Two 3-axis positioners are used to align the focused laser beam and the flow chamber with the light collection optics. All of the components, except the laser, are mounted on a rigid aluminum plate. Standard electronics modules are used. A coefficient of variation of about 1% can be obtained with fluorescent microspheres.
Date: November 19, 1981
Creator: Peters, D.C.; Dean, P.N. & Pinkel, D.
Object Type: Report
System: The UNT Digital Library
Proceedings of the twenty-third WANTO meeting: a workshop to discuss policies and practices used to assure quality NDE operations (open access)

Proceedings of the twenty-third WANTO meeting: a workshop to discuss policies and practices used to assure quality NDE operations

Ten papers were presented at the meeting. A separate abstract was prepared for each paper. (LCL)
Date: November 19, 1981
Creator: Baxter, G.R. (comp.)
Object Type: Article
System: The UNT Digital Library
Increasing the Life of Cutting Fluids Used in the LLNL Machine Shop (open access)

Increasing the Life of Cutting Fluids Used in the LLNL Machine Shop

The objective of this study was to extend the working life of cutting fluids used in metal machining operations at LLNL. The characteristics of the fluids in nine different machines were studied. The pH, bacteria level, percent coolant concentrate, percent tramp oil, and total undissolved solids were monitored on a week-to-week basis for 6 weeks. During this time, the criteria and procedures used for changing the cutting fluids in the machines were also observed. Although the study is incomplete, the following recommendations were made. Cutting fluids should be diluted with deionized water and the concentration of the cutting fluid should be monitored regularly with a refractometer. A bactericide should be added to the cutting fluid. The machines should have a thorough initial cleaning and machine oil leaks should be eliminated. Only one cutting fluid should be used throughout the shop. Methods for removing metal particles from used cutting oils should be investigated. (LCL)
Date: November 18, 1981
Creator: Cadena, C. A.; da Roza, R. A.; Johnson, J. S. & Szidon, R. D.
Object Type: Report
System: The UNT Digital Library
Mirror Fusion Test Facility status (open access)

Mirror Fusion Test Facility status

A review of the MFTF physics and project status is given. (MOW)
Date: November 18, 1981
Creator: Fowler, T.K. & Thomassen, K.I.
Object Type: Report
System: The UNT Digital Library
Geothermal-retrofit study for the National Orange Show Facilities in San Bernardino, California (open access)

Geothermal-retrofit study for the National Orange Show Facilities in San Bernardino, California

The cost and feasibility of retrofitting the National Orange Show Facilities to use geothermal heat instead of natural gas for heating are determined. Because of the limited usage of the smaller facilities the study was limited to the conversion of the six major buildings: Domed, Hobby, Citrus, Auditorium, Restaurant and Commercial. A major problem is that most of the buildings are used on a very limited basis. This drastically reduced the amount of savings that could be used to amortize the retrofit cost. Another problem is that the buildings are spread over a large area and so the below grade piping costs were high. Finally, all of the buildings except for the Auditorium have direct gas fired heaters that would require all new terminal heating systems. In order to limit the retrofit cost, the retrofit system was designed to handle less than the peak load. This seemed appropriate because the facility might not even be in operation when a peak load condition occurred. Also, the existing systems could be used to supplement the geothermal system if necessary. The calculated and design peak loads are summarized.
Date: November 17, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Internal Technical Report, Safety Analysis Report 5 MW(e) Raft River Research and Development Plant (open access)

Internal Technical Report, Safety Analysis Report 5 MW(e) Raft River Research and Development Plant

The Raft River Geothermal Site is located in Southern Idaho's Raft River Valley, southwest of Malta, Idaho, in Cassia County. EG and G idaho, Inc., is the DOE's prime contractor for development of the Raft River geothermal field. Contract work has been progressing for several years towards creating a fully integrated utilization of geothermal water. Developmental progress has resulted in the drilling of seven major DOE wells. Four are producing geothermal water from reservoir temperatures measured to approximately 149 C (approximately 300 F). Closed-in well head pressures range from 69 to 102 kPa (100 to 175 psi). Two wells are scheduled for geothermal cold 60 C (140 F) water reinjection. The prime development effort is for a power plant designed to generate electricity using the heat from the geothermal hot water. The plant is designated as the ''5 MW(e) Raft River Research and Development Plant'' project. General site management assigned to EG and G has resulted in planning and development of many parts of the 5 MW program. Support and development activities have included: (1) engineering design, procurement, and construction support; (2) fluid supply and injection facilities, their study, and control; (3) development and installation of transfer piping systems for …
Date: November 17, 1981
Creator: Brown, E.S.; Homer, G.B.; Shaber, C.R. & Thurow, T.L.
Object Type: Report
System: The UNT Digital Library
Inertial-confinement-fusion targets (open access)

Inertial-confinement-fusion targets

Inertial confinement fusion (ICF) targets are made as simple flat discs, as hollow shells or as complicated multilayer structures. Many techniques have been devised for producing the targets. Glass and metal shells are made by using drop and bubble techniques. Solid hydrogen shells are also produced by adapting old methods to the solution of modern problems. Some of these techniques, problems and solutions are discussed. In addition, the applications of many of the techniques to fabrication of ICF targets is presented.
Date: November 16, 1981
Creator: Hendricks, C.D.
Object Type: Article
System: The UNT Digital Library
Projections of transport scaling laws for small toroidal reactors (open access)

Projections of transport scaling laws for small toroidal reactors

Transport in present day Spheromaks is dominated by impurity radiation. Fortunately, this is largely from oxygen and carbon, not metal vapor from the walls of the vessel on plasma guns and it is expected this loss can be eliminated by improved technique. The formation and gross MHD stability properties of these plasmas are quite well understood and so the reactor predictions depend on estimates of the energy loss rates from the plasma. In the absence of significant experimental data one is driven to consider other related devices. Tokamaks show classical ion transport, scaling with 1/B/sup 2/, but anomalous electron transport which is very insensitive to magnetic field, the well known Alcator scaling. The scaling of the Spheromak to a reactor size still produces favorable Q values with these pessimistic results. The reactor is small, with power output in the 10 to 50 MW range, but this could be deployed as a multiple unit power station, with good reliability due to the duplication, or as a small power unit for a ship or remote site. It also makes an attractive test reactor for the near term.
Date: November 16, 1981
Creator: McNamara, B.
Object Type: Article
System: The UNT Digital Library