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Analysis of LOFT pressurizer spray and surge nozzles to include a 450/sup 0/F step transient
This report presents the analysis of the LOFT pressurizer spray and surge nozzles to include a 450/sup 0/F step thermal transient. Previous analysis performed under subcontract by Basic Technology Incorporated was utilized where applicable. The SAASIII finite element computer program was used to determine stress distributions in the nozzles due to the step transient. Computer results were then incorporated in the necessary additional calculations to ascertain that stress limitations were not exceeded. The results of the analysis indicate that both the spray and surge nozzles will be within stress allowables prescribed by subsubarticle NB-3220 of the 1974 edition of the ASME Boiler and Pressure Vessel Code when subjected to currently known design, normal operating, upset, emergency, and faulted condition loads.
Date:
January 18, 1978
Creator:
Nitzel, M.E.
Object Type:
Report
System:
The UNT Digital Library
Age of substitutability: or what do we do when the mercury runs out
None
Date:
September 18, 1975
Creator:
Goeller, H.E. & Weinberg, A.M.
Object Type:
Article
System:
The UNT Digital Library
Cooperation in the Marine Sciences Through the Intergovernmental Oceanographic Commission
This report discusses international cooperation in marine science through the Intergovernmental Oceanographic Commission (IOC) and the structure and activities of the organization.
Date:
September 18, 1970
Creator:
Price, Nancy C.
Object Type:
Report
System:
The UNT Digital Library
Dissent Within the Military, Past and Present: A Select Bibliography
This report data within the military from the past and present.
Date:
February 18, 1970
Creator:
John Costa
Object Type:
Report
System:
The UNT Digital Library
Congressional Information Processes for Coordinated National Policies
This report discusses congressional information resources and their influence in allowing Congress to address national policy issues well.
Date:
December 18, 1970
Creator:
Beckman, Norman
Object Type:
Report
System:
The UNT Digital Library
NOVA integrated alignment/diagnostic sensors
Under Contract 3772003 to the Lawrence Livermore Laboratory, Aerojet ElectroSystems Company has investigated a number of alignment system design topics for the NOVA and SHIVA upgrade lasers. Prior reports dealt with the Main Beam Alignment System, and with Multipass Amplifier Alignment Concepts. This report, which completes the contract, examines ways in which the Return Beam Diagnostic (RBD) package and Incident Beam Diagnostic (IBD) packages may be reconfigured to a more integrated package. In particular, the report shows that the RBD optics may be directly integrated in the Pointing Focus and Centering (PFC) sensor, and that the IBD optics may use the same basic common configuration as the PFC/RBD package.
Date:
January 18, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Proceedings of the 1977 Isabelle Summer Workshop. [Seventy-four papers]
A report is given of the activities of the 1977 ISABELLE Summer Workshop, held from July 18 to 29, 1977 at the Brookhaven National Laboratory. An abstract was prepared for each of the seventy-four separate presentations for inclusion in DOE Energy Research Abstracts (ERA). (PMA)
Date:
July 18, 1977
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Remote Working Level Monitor. Final report
The Remote Working Level Monitor (RWLM) is an instrument used to remotely monitor the RN-daughter concentrations and the Working Level (WL). It is an ac powered, microprocessor based instrument which multiplexes two independent detector units to a single central processor unit (CPU). The CPU controls the actuation of the detector units and processes and outputs the data received from these remote detector units. The remote detector units are fully automated and require no manual operation once they are set up. They detect and separate the alpha emitters of RaA and RaC' as well as detecting the beta emitters of RaB and RaC. The resultant pulses from these detected radioisotopes are transmitted to the CPU for processing. The programmed microprocessor performs the mathematical manipulations necessary to output accurate Rn-daughter concentrations and the WL. A special subroutine within the program enables the RWLM to run and output a calibration procedure on command. The data resulting from this request can then be processed in a separate program on most computers capable of BASIC programming. The calibration program results in the derivation of coefficients and beta efficiencies which provides calibrated coefficients and beta efficiencies.
Date:
November 18, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Review of experiments
A study was made to examine the effects which raising the ISA from 200 x 200 GeV to 400 x 400 GeV would have on the ''canonical'' experiments. These were ''canonical'' in the sense that they span the full range of foreseeable physics and have served as topics in previous Summer Studies and Workshops which resulted in quite explicit hardware designs and experimental goals. The study results indicate that all of the ''canonical'' experiments survive. Some are actually improved, some are unaffected, and some require changes which are suggested. In general, the 90/sup 0/ experiments are relatively unaffected. The single arm small angle spectrometer, the wide aperture (FATS-WASP) spectrometer and the Coulomb interference experiment have the largest number of modifications suggested. No uniqueness to these solutions are claimed, and there may be more desirable radical approaches. It is, however, felt that the 400 x 400 GeV ISA not only permits the work on conceptual experiments from previous Summer Studies to be taken over entirely, but indicates areas of improvement in many of them. Specifics of the individual experiments are discussed.
Date:
August 18, 1977
Creator:
Chang, C.; Yodh, G.; Cutts, D.; Lanou, R.; Engels, E.; Kramer, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Thermoelastic analysis of waste-container sleeve. Technical memorandum report RSI-0008
None
Date:
January 18, 1974
Creator:
Gnirk, P. F.; Callahan, G. D. & Hovland, H.
Object Type:
Report
System:
The UNT Digital Library
Office of Waste Isolation progress report, October 1977
Technical projects, facility projects, planning and analysis, and regulatory affairs are reported for OWI's portion of the National Waste Terminal Storage program. (DLC)
Date:
November 18, 1977
Creator:
Asher, J.M. & Rhines, R.C. (eds.)
Object Type:
Report
System:
The UNT Digital Library
District Heating and Cooling Systems for Communities Through Power Plant Retrofit and Distribution Network, City of Piqua, Ohio: Volume 1 [Executive Summary]
The goal of the Piqua, Ohio District Heating and Cooling Demonstration Project is to demonstrate the feasibility and efficiency of using cogenerated thermal energy from the City's Municipal Power Plant to provide residential, commercial and industrial space heating and cooling and satisfy other community energy needs as appropriate. Progress in four tasks within this project is reported. These tasks include: development of team work plan resource allocation; identification of thermal energy source market; analysis of energy market; and planning of power plant retrofits. (LCL)
Date:
September 18, 1979
Creator:
Piqua (Ohio)
Object Type:
Report
System:
The UNT Digital Library
Uranium production in thorium/denatured uranium fueled PWRs
Uranium-232 buildup in a thorium/denatured uranium fueled pressurized water reactor, PWR(Th), was studied using a modified version of the spectrum-dependent zero dimensional depletion code, LEOPARD. The generic Combustion Engineering System 80 reactor design was selected as the reactor model for the calculations. Reactors fueled with either enriched natural uranium and self-generated recycled uranium or uranium from a thorium breeder and self-generated recycled uranium were considered. For enriched natural uranium, concentrations of /sup 232/U varied from about 135 ppM (/sup 232/U/U weight basis) in the zeroth generation to about 260 ppM (/sup 232/U/U weight basis) at the end of the fifth generation. For the case in which thorium breeder fuel (with its relatively high /sup 232/U concentration) was used as reactor makeup fuel, concentrations of /sup 232/U varied from 441 ppM (/sup 232/U/U weight basis) at discharge from the first generation to about 512 ppM (/sup 232/U/U weight basis) at the end of the fifth generation. Concentrations in freshly fabricated fuel for this later case were 20 to 35% higher than the discharge concentration. These concentrations are low when compared to those of other thorium fueled reactor types (HTGR and MSBR) because of the relatively high /sup 238/U concentration added to …
Date:
October 18, 1977
Creator:
Arthur, W.B.
Object Type:
Report
System:
The UNT Digital Library
Fast optical shutters for Nova, a high power fusion laser
Preliminary design and performance test results for fast optical shutters intended for use in the Nova high power fusion laser system are briefly described. Both an opening shutter to protect the pellet target from amplified spontaneous emission (ASE), and a closing shutter to protect the laser from light reflected back from the target are discussed. Faraday rotators, synchronized by a 400 Hz oscillator, provide an opening shutter mechanism with an opening time of approximately 10 ..mu..s. A plasma closing shutter, employing electrical sublimation of a foil, provide a shutter closing time of 70 ns +- 20 ns. Energy for foil sublimation is provided by discharge of a 42 J capacitor bank. Implementation of these shutter techniques in the Nova system is anticipated to improve laser output power and efficiency. (RME)
Date:
October 18, 1977
Creator:
Bradley, L. P.; Gagnon, W. L. & Carder, B. M.
Object Type:
Article
System:
The UNT Digital Library
25 megajoule energy storage and delivery system for the Shiva laser
A 25 megajoule, 20 kV capacitive energy storage and delivery system has been built and tested for Shiva--a 20 arm, 10 kJ, 20 TW neodymium glass fusion research laser. This system supplies over 3.5 megamperes to xenon flashlamps for optical pumping of the laser amplifier. About 15% of the energy is used to establish magnetic fields within Faraday rotator glass. A digital based control and diagnostics scheme is employed through the entire pulse power system. This scheme utilizes a distributed digital data bus that addresses every element through two levels of optical isolation. The interfacing of low level digital circuitry to a pulse power environment is discussed, as well as the design and performance of the total system. Cost and manufacturing details are important in a project of this size. The projected cost goal of 27 cents/joule, installed and operating, has been met. The general approach to the design, transient analysis, manufacture, and activation of this large power conditioning system is also discussed.
Date:
October 18, 1977
Creator:
Gagnon, W.L.; Rupert, P. R.; Berkbigler, L.; Carder, B. M.; Gritton, D. G.; Holloway, R. W. et al.
Object Type:
Article
System:
The UNT Digital Library
Brillouin scatter in laser-produced plasmas
The absorption of intense laser light is found to be reduced when targets are irradiated by 1.06 ..mu..m light with long pulse widths (150-400 psec) and large focal spots (100-250 ..mu..m). Estimates of Brillouin scatter which account for the finite heat capacity of the underdense plasma predict this reduction. Spectra of the back reflected light show red shifts indicative of Brillouin scattering.
Date:
July 18, 1977
Creator:
Phillion, D.W.; Kruer, W.L. & Rupert, V.C.
Object Type:
Article
System:
The UNT Digital Library
Report of Working Group on Accelerator Problems
There are many experimental elementary particle objectives which are uniquely achievable with polarized proton beams. These objectives require both higher beam energies and intensities than are presently available. The polarized ion source working group concluded that it looks quite practical to produce polarized H sources with output currents of several mA. The significance of this is best demonstrated by the fact that the ZGS operates at its space charge limit using a 6 mA H/sup -/ impolarized ion source and charge exchanger injection. Thus, polarized H/sup -/ ions offer the possibility of operating high energy synchrotrons at their ''normal'' intensity. With interesting physics to be done and the high probability of adequate intensities for both fixed target and colliding beam machines, the question to be answered is whether or not it is possible to accelerate polarized protons and/or deuterons to energies above the presently available 12 GeV/c of the ZGS and to store beams in a colliding beam machine such as the ISR or ISABELLE. This question was considered by the accelerator physics working group, and the conclusions reached are discussed.
Date:
October 18, 1977
Creator:
Cho, Y.; Montague, B. W.; Kubischta, W.; Turrin, A.; Courant, E. D. & Ratner, L.
Object Type:
Article
System:
The UNT Digital Library
District Heating and Cooling Systems for Communities Through Power Plant Retrofit and Distribution Network, City of Piqua, Ohio: Volume 2 [Full Report]
The feasibility analysis and evaluation of the Piqua, Ohio District Heating and Cooling Demonstration program is being conducted by the Piqua Municipal Power Co., the Piqua Law Dept., the Public Works Dept., a firm of economic analysts, and the Georgia Tech Engineering Dept. This volume contains information on the organization and composition of the demonstration team; characterization of the Piqua community; and the technical, environmental, institutional; financial, and economic assessments of the project. (LCL)
Date:
September 18, 1979
Creator:
Piqua (Ohio)
Object Type:
Report
System:
The UNT Digital Library
Design and test of a 40-kV, 80-A, 10-msec, neutral-beam power supply series
To meet neutral-beam source requirements, a combination series switch/regulator system has been developed that can provide up to 40-kV at 80A output for 10-ms from the continuously decaying voltage of a charged capacitor bank. The system uses 100% feedback control of a series hard tube regulator. This feedback regulator is able to maintain a 40-kV output level for 100% load variations while the source voltage for the capacitor bank is drained from an initial 55-kV down to as low as 43-kV during a 10-ms pulse. In addition to controlling the output voltage, the series regulator tube also serves the dual role of a disconnect or interrupt switch at the end of each pulse and during the frequent occurrence of a neutral-beam source fault. In the interrupt mode, complete disconnect is achieved in less than 2-..mu..s after first observance of a fault condition; recovery times to normal operation of less than 10-..mu..s after fault clearance can be attained if desired.
Date:
October 18, 1977
Creator:
North, G.G.
Object Type:
Article
System:
The UNT Digital Library
Performance evaluation of in-service, elevated temperature industrial insulation
A purchaser of industrial insulation is concerned with many factors which bear on the type of insulation selected. One of the most important factors, undoubtedly, is the thermal conductivity. The thermal conductivity is a measure of the ability of an insulation to conduct heat. The lower this value the better the insulation appears to the buyer. In the past it was generally assumed that the conductivity during the life of the insulation could be taken as a fixed property so long as external influences such as moisture or physical damage do not occur. Due to the dramatic increase in the cost and availability of energy in recent years, investigation of the validity of this long-standing assumption is in order. The purpose of this study was to determine whether deterioration of industrial insulation does occur and, if so, attempt to identify the reasons. In order to accomplish this, it was necessary to first develop methods by which the conductivity could be determined in the field. Once this was accomplished, a field test program was implemented. It was determined from this program that there was a significant difference between the conductivity values obtained and those which were expected from manufacturer's data. However, …
Date:
December 18, 1978
Creator:
Martin, D. J.
Object Type:
Report
System:
The UNT Digital Library
Goals study for technical development and economic evaluation of the compound parabolic concentrator concept for solar energy collector applications
The Argonne National Laboratories, contracted with Arthur D. Little, Inc. (ADL), to perform a 6 week goal study for the purpose of evaluating the technical applicability and the economic viability of the compound parabolic concentrator (CPC) concept for all solar energy applications except large central power plants. During this period, we studied the use of CPC units in a large number of residential, industrial, and commercial applications. The predicted performance of CPC augmented solar collectors was compared with other available solar collectors. Application of the CPC to on-site power generation using solar Rankine power generation techniques was studied in detail. Techniques and costs for fabricating CPC collectors were studied. Collectors with insulation and with full-surface reflectors were studied along with the use of CPC augmentation for evacuated receivers with selective surfaces. Manufacturing costs are compared with those reported by others. A qualitative comparison was made between the various classes of solar collectors that are either presently available or are expected to become available in the near future. Comparative energy costs for various collectors are discussed based upon the predicted performance and the estimated costs for manufacture. The problems of introducing the CPC, or other advanced technology type of solar collectors, …
Date:
July 18, 1975
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
ORINC: a one-dimensional implicit approach to the inverse heat conduction problem. [PWR]
The report develops an implicit solution technique to determine both the transient surface temperature and the transient surface heat flux of electrically heated rods given the power input and an ''indicated'' internal temperature during a simulated loss-of-coolant accident. A digital computer program ORINC (ORNL Inverse Code) is developed which solves a one-dimensional, transient, lumped parameter, implicit formulation of the conduction equation at each bundle thermocouple position in the Thermal-Hydraulic Test Facility (THTF).
Date:
October 18, 1977
Creator:
Ott, L. J. & Hedrick, R. A.
Object Type:
Report
System:
The UNT Digital Library
Structure of solid surfaces and of adsorbates by low-energy electron diffraction
LEED theory has developed to the point where the diffraction beam intensities can be computed using the locations of the surface atoms as the only adjustable parameters. The position of atoms in many clean monatomic solid surfaces and the surface structures of ordered monolayers of adsorbed atoms have been determined this way. Surface crystallography studies are now extended to small hydrocarbon molecules that are adsorbed on metal surfaces. These studies are reviewed. (GHT)
Date:
October 18, 1977
Creator:
Somorjai, G.A.
Object Type:
Article
System:
The UNT Digital Library
Effects of flow on density profiles in laser irradiated plasmas
When the plasma outflow velocity relative to the critical surface is supersonic, compressional density profiles can form in the critical region. These compressions involve dissipative processes like those in collisionless shocks; associated plasma instabilities and reflected ions may inhibit energy transport and enhance laser light absorption.
Date:
October 18, 1977
Creator:
Max, C.E. & McKee, C.F.
Object Type:
Article
System:
The UNT Digital Library