Solar cogeneration: Cimarron River station, Central Telephone and Utilities-Western Power (open access)

Solar cogeneration: Cimarron River station, Central Telephone and Utilities-Western Power

The site-specific conceptual design progress is described for a solar central receiver cogeneration facility at a Kansas utility. The process is described which led to the selection of the preferred solar cogeneration facility. The status of the conceptual design is presented. The evaluation of system performance is described. A test program is described that is to determine the magnitude of impact that local environmental factors have on collector system performance and to measure the direct normal insolation at the cogeneration facility site. The system specification is appended. (LEW)
Date: April 1, 1981
Creator: Harder, J. E.
Object Type: Report
System: The UNT Digital Library
Coal-feeder development. Second quarterly technical progress report, January-March 1980 (open access)

Coal-feeder development. Second quarterly technical progress report, January-March 1980

The pilot-scale piston-feeder development is progressing satisfactorily and should proceed as planned. The bench scale testing of components, sub-system and critical areas continued to provide very useful information in support of the development of the complete feeder. The K30M seals and polyurethane scrapers are showing very promising results. The components development facility is being upgraded and testing at the bench scale level should be vigorously perused. The upgrading of the pilot scale feeder and its system will be emphasized during the next quarter to perform feeder capabilities and limitations testing. No progress on the 5.5-in. diameter pilot scale screw feeder has been made because IRRI is waiting decision from METC as to when the feeder can be installed on the 42-in. gas producer.
Date: April 1, 1981
Creator: Mistry, D.K.
Object Type: Report
System: The UNT Digital Library
Ohio State Briefing Book for low-level radioactive waste management (open access)

Ohio State Briefing Book for low-level radioactive waste management

The Ohio State Briefing Book is one of a series of state briefing books on low-level radioactive waste management practices. It has been prepared to assist state and federal agency officials in planning for safe low-level radioactive waste disposal. The report contains a profile of low-level radioactive waste generators in Ohio. The profile is the result of a survey of NRC licensees in Ohio. The briefing book also contains a comprehensive assessment of low-level radioactive waste management issues and concerns as defined by all major interested parties including industry, government, the media, and interest groups. The assessment was developed through personal communications with representatives of interested parties, and through a review of media sources. Lastly, the briefing book provides demographic and socioeconomic data and a discussion of relevant government agencies and activities, all of which may impact waste management practices in Ohio.
Date: April 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Method and apparatus for recovering unstable cores (open access)

Method and apparatus for recovering unstable cores

A method and apparatus suitable for stabilizing hydrocarbon cores are given. Such stabilized cores have not previously been obtainable for laboratory study, and such study is believed to be required before the hydrate reserves can become a utilizable resource. The apparatus can be built using commercially available parts and is very simple and safe to operate.
Date: April 1, 1981
Creator: McGuire, P. L. & Barraclough, B. L.
Object Type: Patent
System: The UNT Digital Library
Neutral beamline with improved ion-energy recovery (open access)

Neutral beamline with improved ion-energy recovery

A neutral beamline employing direct energy recovery of unneutralized residual ions is provided which enhances the energy recovery of the full energy ion component of the beam exiting the neutralizer cell, and thus improves the overall neutral beamline efficiency. The unneutralized full energy ions exiting the neutralizer are deflected from the beam path and the electrons in the cell are blocked by a magnetic field applied transverse to the beam direction in the neutralizer exit region. The ions which are generated at essentially ground potential and accelerated through the neutralizer cell by a negative acceleration voltage are collected at ground potential. A neutralizer cell exit end region is provided which allows the magnetic and electric fields acting on the exiting ions to be loosely coupled.
Date: April 13, 1981
Creator: Kim, J.
Object Type: Patent
System: The UNT Digital Library
Radioactive hot-cell access-hole decontamination machine (open access)

Radioactive hot-cell access-hole decontamination machine

A radioactive hot cell access hole decontamination machine is disclosed. A mobile housing has an opening large enough to encircle the access hole and has a shielding door, with a door opening and closing mechanism, for uncovering and covering the opening. The housing contains a shaft which has an apparatus for rotating the shaft and a device for independently translating the shaft from the housing through the opening and access hole into the hot cell chamber. A properly sized cylindrical pig containing wire brushes and cloth or other disks, with an arrangement for releasably attaching it to the end of the shaft, circumferentially cleans the access hole wall of radioactive contamination and thereafter detaches from the shaft to fall into the hot cell chamber.
Date: April 6, 1981
Creator: unknown
Object Type: Patent
System: The UNT Digital Library
Compressor surge counter (open access)

Compressor surge counter

A surge counter for a rotating compressor is provided which detects surging by monitoring the vibration signal from an accelerometer mounted on the shaft bearing of the compressor. The circuit detects a rapid increase in the amplitude envelope of the vibration signal, e.g., 4 dB or greater in less than one second, which is associated with a surge onset and increments a counter. The circuit is rendered nonresponsive for a period of about 5 seconds following the detection which corresponds to the duration of the surge condition. This prevents multiple registration of counts during the surge period due to rapid swings in vibration amplitude during the period.
Date: April 13, 1981
Creator: Castleberry, K.N.
Object Type: Patent
System: The UNT Digital Library
Infiltration measurements in audit and retrofit programs (open access)

Infiltration measurements in audit and retrofit programs

A model that relates fan pressurization measurements to infiltration values during the heating season is the basis for infiltration estimates in several different audit programs. The model is described and validation results are presented. The model is used in three different audit strategies. The first is an energy audit to determine economically optimal retrofits for residential buildings, based on actual, on-site measurments of key indices of the house. Measurements are analyzed on a microprocessor and retrofit combinations compatible with minimum life-cycle cost and occupant preferences are determined. The second uses graphical techniques to make infiltration calculations while the third is a non-instrumented walk-through audit that was developed as a standard reference in the Residential Conservation Service Program.
Date: April 1, 1981
Creator: Grimsrud, D. T.; Sonderegger, R. C. & Sherman, M. H.
Object Type: Article
System: The UNT Digital Library
TCLUST1: A Computer Program for Analysis of Intersubassembly Heat Transfer in an LMFBR (open access)

TCLUST1: A Computer Program for Analysis of Intersubassembly Heat Transfer in an LMFBR

The TCLUST1 computer program was developed to study the transient thermal behavior of a subassembly of a liquid-metal fast breeder reactor (LMFBR) that is thermally coupled to its six neighboring subassemblies. Each of the seven subassemblies may be either a reflector subassembly, which contains a single solid hexagonal rod, or a pin-bundle subassembly. The TCLUST1 analytical model was developed based on conservation of energy, and the temperature distribution in the subassembly was obtained using the successive over-relaxation (SOR) technique. Measured temperatures obtained from a natural-convection flow test performed in EBR-II compare well with those predicted by TCLUST1. Appendixes describe the code input and go through a sample program.
Date: April 1981
Creator: Chang, L. K. & Feldman, E. E.
Object Type: Report
System: The UNT Digital Library
Application of microfabrication technology to thermionic energy conversion. Final report, 1 April 1979-31 March 1981 (open access)

Application of microfabrication technology to thermionic energy conversion. Final report, 1 April 1979-31 March 1981

The first-year effort emphasized study of the kind of microstructures that could improve the performance of thermionic converters. Two ideas considered to have a fair chance of success emerged from this study: (1) use of a very closely spaced diode to eliminate the space-charge limitation of electron flow from emitter to collector, cesium vapor being used to control the work function of the emitter; and (2) use of field emission electrons, injected into a relatively large diode gap from microcathodes built into the collector, to produce ions to neutralize the space charge. The gas in the diode gap would be a mixture of cesium (to control the emitter work function) and xenon to optimize the ionization. A number of schemes were attempted to build closely spaced diodes with spacing in the 1 to 5 ..mu..m range, which overcame the problems of lateral differential expansion, surface irregularities on the electrodes, and heat loss down the pillars holding the gap spacing. Theoretical studies on using field emitter electrons to produce the space charge neutralizing ions showed that this approach was feasible. However, the program was terminated before any experimental work could be initiated in this area.
Date: April 1, 1981
Creator: Brodie, I.; Shepherd, C. & Spindt, C.A.
Object Type: Report
System: The UNT Digital Library
Preliminary assessment of Fort Hood solar cogeneration plant performance (open access)

Preliminary assessment of Fort Hood solar cogeneration plant performance

An analysis has been performed to enable a preliminary assessment of the performance that can be expected of a solar thermal cogeneration system designed to serve a selected group of buildings at Fort Hood, Texas. A central receiver system utilizing a molten salts mixture as the receiver coolant, heat transfer fluid, and storage medium is assumed. The system is to supply a large share of the space heating, air conditioning, domestic hot water, and electricity needs of a 20-building Troop Housing Complex. Principal energy loads are graphed and tabulated, and the principal electric parasitic loads are tabulated and the methodology by which they are estimated is reviewed. The plant model and the performance calculations are discussed. Annual energy displacement results are given. (LEW)
Date: April 1, 1981
Creator: Ator, J.
Object Type: Report
System: The UNT Digital Library
Airborne gamma-ray spectrometer and magnetometer survey: Ukiah quadrangle, California (open access)

Airborne gamma-ray spectrometer and magnetometer survey: Ukiah quadrangle, California

Volume II contains the flight path, radiometric multi-parameter stacked profiles, magnetic and ancillary parameter stacked profiles, histograms, and anomaly maps for the Ukiah Quadrangle in California.
Date: April 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Conceptual design of a solar cogeneration facility at Pioneer Mill Co. , Ltd (open access)

Conceptual design of a solar cogeneration facility at Pioneer Mill Co. , Ltd

Results are reported of a conceptual design study of the retrofit of a solar central receiver system to an existing cogeneration facility at a Hawaii raw sugar factory. Background information on the site, the existing facility, and the project organization is given. Then the results are presented o the work to select the site specific configuration, including the working fluid, receiver concept, heliostat field site, and the determination of the solar facility size and of the role of thermal storage. The system selected would use water-steam as its working fluid in a twin-cavity receiver collecting sunlight from 41,420 m/sup 2/ of heliostat mirrors. The lates version of the system specification is appended, as are descriptions of work to measure site insolation and a site insolation mathematical model and interface data for the local utility. (LEW)
Date: April 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Static reactive power compensators for high-voltage power systems. Final report (open access)

Static reactive power compensators for high-voltage power systems. Final report

A study conducted to summarize the role of static reactive power compensators for high voltage power system applications is described. This information should be useful to the utility system planning engineer in applying static var systems (SVS) to high voltage as (HVAC) systems. The static var system is defined as a form of reactive power compensator. The general need for reactive power compensation in HVAC systems is discussed, and the static var system is compared to other devices utilized to provide reactive power compensation. Examples are presented of applying SVS for specific functions, such as the prevention of voltage collapse. The operating principles of commercially available SVS's are discussed in detail. The perormance and active power loss characteristics of SVS types are compared.
Date: April 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Power recovery system for coal-liquefaction process. [Patent application] (open access)

Power recovery system for coal-liquefaction process. [Patent application]

Method and apparatus for minimizing energy required to inject reactant such as coal-oil slurry into a reaction vessel, using high pressure effluent from the latter to displace the reactant from a containment vessel into the reaction vessel with assistance of low pressure pump. Effluent is degassed in the containment vessel, and a heel of the degassed effluent is maintained between incoming effluent and reactant in the containment vessel.
Date: April 24, 1981
Creator: Horton, J. R.
Object Type: Patent
System: The UNT Digital Library
Equipment for drilling miniature holes (open access)

Equipment for drilling miniature holes

Miniature holes are produced on 16 different types of mechanical drilling equipment. Each equipment type has significant advantages for a specific type of part. The basic capabilities vary greatly between equipment types. Some produce very precise holes and others produce very high volumes of commercial tolerance holes. At the present time machines are available for mechanicaly drilling up to 100,000 miniature holes per hour. Lasers currently are drilling as many as 15,000,000 ultra-miniature holes per hour.
Date: April 1, 1981
Creator: Gillespie, L K
Object Type: Article
System: The UNT Digital Library
Coal gasification apparatus. [Patent application] (open access)

Coal gasification apparatus. [Patent application]

Coal hydrogenation vessel has hydrogen heating passages extending vertically through its wall and opening into its interior.
Date: April 24, 1981
Creator: Nagy, C.K.
Object Type: Patent
System: The UNT Digital Library
Air separation by the Moltox process (open access)

Air separation by the Moltox process

The report describes results of a development program on a new and energy saving process for air separation. The Moltox process involves reversibly reacting oxygen in air with a recirculating salt solution, such that oxygen is extracted without depressurizing the remaining nitrogen. Energy savings of approximately 50% are indicated for this process compared to conventional cryogenic air separation. The development program consisted of design, construction, and operation of a 6 liter/minute pilot plant; optimization of the process flowsheet through computer modelling; investigation of engineering aspects of the process including corrosion, safety, and NO/sub x/ generation; and an economic comparison to conventional cryogenic practice. All objectives were satisfactorily achieved except for continuous operation of the pilot plant, and the modifications necessary to achieve that have been identified. Economically the Moltox process shows a substantial advantage over large scale cryogenic plants which are powered by fuel vice electricity.
Date: April 1, 1981
Creator: Erickson, D. C.
Object Type: Report
System: The UNT Digital Library
Improved method of preparing composite superconducting wire (open access)

Improved method of preparing composite superconducting wire

An improved method of preparing composite multifilament superconducting wire of Nb/sub 3/Sn in a copper matrix which eliminates the necessity of coating the drawn wire with tin is described. A generalized cylindrical billet of an alloy of copper containing at least 15 weight percent niobium, present in the copper as discrete, randomly distributed and oriented dendritic-shaped particles, is provided with at least one longitudinal opening which is filled with tin to form a composite drawing rod. The drawing rod is then drawn to form a ductile composite multifilament wire containing a filament of tin. The ductile wire containing the tin can then be wound into magnet coils or other devices before heating to diffuse the tin through the wire to react with the niobium forming Nb/sub 3/Sn. Also described is an improved method for making large billets of the copper-niobium alloy by consumable-arc casting.
Date: April 24, 1981
Creator: Verhoeven, J. D.; Gibson, E. D.; Finnemore, D. K.; Ostenson, J. E.; Schmidt, F. A. & Owen, C. V.
Object Type: Patent
System: The UNT Digital Library
Electromagnetic velocity gauge: use of multiple gauges, time response, and flow perturbations (open access)

Electromagnetic velocity gauge: use of multiple gauges, time response, and flow perturbations

We have developed an in-situ electromagnetic velocity (EMV) gauge system for use in multiple-gauge studies of initiating and detonating explosives. We have also investigated the risetime of the gauge and the manner in which it perturbs a reactive flow. We report on the special precautions that are necessary in multiple gauge experiments to reduce lead spreading, simplify target fabrication problems and minimize cross talk through the conducting explosive. Agreement between measured stress records and calculations from multiple velocity gauge data give us confidence that our velocity gauges are recording properly. We have used laser velocity interferometry to measure the gauge risetime in polymethyl methacrylate (PMMA). To resolve the difference in the two methods, we have examined hydrodynamic and material rate effects. In addition, we considered the effects of shock tilt, electronic response and magntic diffusion on the gauge's response time.
Date: April 8, 1981
Creator: Erickson, L. M.; Johnson, C. B.; Parker, N. L.; Vantine, H. C.; Weingart, R. C. & Lee, R. S.
Object Type: Article
System: The UNT Digital Library
Airborne gamma-ray spectrometer and magnetometer survey, Medford Quadrangle Oregon. Final report (open access)

Airborne gamma-ray spectrometer and magnetometer survey, Medford Quadrangle Oregon. Final report

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over ten (10) areas over northern California and southwestern Oregon. These include the 2/sup 0/ x 1/sup 0/ NTMS quadrangles of Roseburg, Medford, Weed, Alturas, Redding, Susanville, Ukiah, and Chico along with the 1/sup 0/ x 2/sup 0/ areas of the Coos Bay quadrangle and the Crescent City/Eureka areas combined. This report discusses the results obtained over the Medford, Oregon, map area. Traverse lines were flown in an east-west direction at a line spacing of three miles. Tie lines were flown north-south approximately twelve miles apart. A total of 16,880.5 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 2925 line miles are in this quadrangle. The purpose of this study is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.
Date: April 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Carrier sense data highway system. [Patent for a two-way Data Transmission System] (open access)

Carrier sense data highway system. [Patent for a two-way Data Transmission System]

A data transmission system is disclosed which includes a transmission medium which has a certain propagation delay time over its length. A number of data stations are successively coupled to the transmission medium for communicating with one another. Each of the data stations includes a transmitter for originating signals, each signal beginning with a carrier of a duration which is at least the propagation delay time of the transmission medium. Each data station also includes a receiver which receives other signals from other data stations and inhibits operation of the transmitter at the same data station when a carrier of another signal is received.
Date: April 30, 1981
Creator: Frankel, R.
Object Type: Patent
System: The UNT Digital Library
NATURAL CONVECTION IN PASSIVE SOLAR BUILDINGS: EXPERIMENTS, ANALYSIS AND RESULTS (open access)

NATURAL CONVECTION IN PASSIVE SOLAR BUILDINGS: EXPERIMENTS, ANALYSIS AND RESULTS

Computer programs have been developed to numerically simulate natural convection in two- and three-dimensional room geometries. The programs have been validated using published data from the literature, results from a full-scale experiment performed at the Massachusetts Institute of Technology, and results from a small-scale experiment performed at LBL. One of the computer programs has been used to study the influence of natural convection on the thermal performance of a single zone in a direct-gain passive solar building. It is found that the convective heat transfer coefficients between the air and the enclosure surfaces can be substantially different from the values assumed in the standard building energy analysis methods, and can exhibit significant variations across a given surface. This study implies that the building heating loads calculated by standard building energy analysis methods may have substantial errors as a result of their use of common assumptions regarding the convection processes which occur in an enclosure.
Date: April 1, 1981
Creator: Gadgil, A.; Bauman, F. & Kammerud, R.
Object Type: Article
System: The UNT Digital Library
MT2D: an interactive two-dimensional magnetotelluric and line source modeling program (user's guide and documentation for Rev. 3) (open access)

MT2D: an interactive two-dimensional magnetotelluric and line source modeling program (user's guide and documentation for Rev. 3)

MT2D.REV3 is the latest revision of a 2-dimensional, finite-element, interactive MT-line source modeling program. The original program was a batch-mode program developed by John Stodt. An interactive program was developed based on Stodt's program for a UNIVAC 1108. The program uses linear interpolation of the unknown field over triangular sub-domains of the region where a solution is sought in conjunction with the Galerkin technique to derive a system of linear equations which approximate the governing partial differential equation. The solution of this linear system of equations gives the approximate field values at the nodes of the discretized domain. MT2D has an interactive data management system for data manipulation and display built around the finite-element program.
Date: April 1, 1981
Creator: Nutter, C.
Object Type: Report
System: The UNT Digital Library