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open access

1/5-scale experiment of a Mark I boiling-water reactor pressure-suppression system under hypothetical LOCA conditions

Description: Experimental results show the sensitivity of hydrodynamically generated vertical loads to changes in the drywell pressurization rate, downcomer submergence, and vent-line loss coefficient. Insignificant effects on peak vertical loads were observed when the vent-line loss was varied. Peak vertical loads can be reduced by adding initial drywell overpressure so that the downcomers are partly cleared of water. Spatial variation of pressure at about the time of vent clearing is seen in comparisons o… more
Date: July 8, 1977
Creator: Pitts, J. H. & McCauley, E. W.
Item Type: Refine your search to only Article
open access

2-MW plasmajet facility thermal tests of concrete. [PWR and BWR]

Description: A test was made in the 2-Megawatt Plasmajet Facility to obtain experimental data relative to the thermal response of concrete to incident heat flux. 14.6 cm diameter by 8.0 cm long concrete cylinders were positioned in a supersonic flow of heated nitrogen from an arc heater. The end of the concrete cylinders impacted by the flow were subjected to heat fluxes in the range of 0.13 to 0.35 kW/cm/sup 2/. Measurements included cold wall surface heat flux and pressure distributions, surface and indep… more
Date: July 1, 1977
Creator: Goin, Kenneth L.
Item Type: Refine your search to only Report
open access

450/sup 0/F step transient thermal analysis of the LOFT pressurizer surge and spray line piping

Description: The LOFT pressurizer spray and surge line piping was analyzed for a 450/sup 0/F step change in fluid temperature. This transient was chosen to conservatively represent several pressurizer operating transients that had not previously been analyzed. These include temperature transients resulting from a 300/sup 0/F ..delta..T between pressurizer temperature and cold leg temperature, injection of a cooled (70/sup 0/F) slug of stagnant fluid into the hot (540/sup 0/F) spray line piping, and inflow o… more
Date: July 7, 1977
Creator: Tolan, B.J.
Item Type: Refine your search to only Report
open access

Adsorption Induced Losses in Interfacial Cohesion

Description: A model for interfacial cohesion is developed which describes the loss in the strength of an interface due to the segregation and adsorption of impurities on it. Distinctions are made between interface separations that occur too rapidly for any significant redistribution of adsorbing matter to take place and separations that are slow enough to allow full adsorption equilibrium. Expressions for the total work of complete decohesion are presented for both cases. The results are applied to well-kn… more
Date: July 1, 1977
Creator: Asaro, R. J.
Item Type: Refine your search to only Article
open access

Alfven instability and micromagnetic islands in a plasma with sheared magnetic fields

Description: The normal mode equation for coupled drift and Alfven waves in a finite-..beta.. nonuniform plasma with a sheared magnetic field is solved, in the slab geometry, to investigate the instability of slow Alfven waves. It is shown, that, besides having an appreciable growth rate, the instability also produces microscopic ''tearing'' of the rational surfaces which has important implications for anomalous transport.
Date: July 1, 1977
Creator: Hsu, J.; Kaw, P. & Chen, L.
Item Type: Refine your search to only Report
open access

Alloy evaluation for fossil fuel process plants (liquefaction). Quarterly report, 1 April--30 June 1977

Description: ASTM mechanical property specification verification tests have been conducted on the 2 /sup 1///sub 4/ Cr--1 Mo steel. The base properties have been determined for the steel and calibrations on the thermal expansivity of both the 2 /sup 1///sub 4/ Cr--1 Mo steel and 316 SS for use as loading rings have been completed.
Date: July 15, 1977
Creator: Woods, C. M. & Scott, T. E.
Item Type: Refine your search to only Report
open access

Alloy evaluation for fossil fuel process plants (liquefaction). Quarterly report for April 1--June 30, 1977

Description: ASTM mechanical property specification verification tests have been conducted on the 2 /sup 1///sub 4/ Cr-1 Mo steel. The base properties have been determined for the steel and calibrations on the thermal expansivity of both the 2 /sup 1///sub 4/ Cr-1 Mo steel and 316 SS for use as loading rings have been completed.
Date: July 15, 1977
Creator: Woods, C. M. & Scott, T. E.
Item Type: Refine your search to only Report
open access

Analysis of the method of Streeter and Wylie for multidimensional wave propagation

Description: The method of Streeter and Wylie was developed to allow calculation of two- and three-dimensional transients using existing one-dimensional ''water-hammer'' codes for waves in fluid piping networks. The method is analyzed in terms of the effective multidimensional finite-difference scheme it generates. Subject to certain modelling restrictions, the method produces a first-order accurate scheme in the linear-acoustic, constant-properties approximation. Despite the fact that conventional multidim… more
Date: July 1, 1977
Creator: Cole, R.K. Jr.
Item Type: Refine your search to only Report
open access

Annual collection and storage of solar energy for the heating of buildings. Report No. 2. Annual progress report, May 1976--July 1977

Description: A new system for year-round collection and storage of solar heated water for heating of buildings has been designed and constructed at the University of Virginia. The system is composed of an energy storage sub-system which stores hot water in an underground pool and of a solar collector sub-system which acts not only to collect solar energy throughout the year but also to limit the evaporative and convective heat losses from the storage system. The annual collection and storage system began op… more
Date: July 1, 1977
Creator: Beard, J. T.; Iachetta, F. A.; Lilleleht, L. U. & Dickey, J. W.
Item Type: Refine your search to only Report
open access

Annual progress report FY 1977. [Computer calculations of light water reactor dynamics and safety]

Description: Progress is summarized in a project directed toward development of numerical methods suitable for the computer solution of problems in reactor dynamics and safety. Specific areas of research include methods of integration of the time-dependent diffusion equations by finite difference and finite element methods; representation of reactor properties by various homogenization procedures; application of synthesis methods; and development of response matrix techniques.
Date: July 1, 1977
Creator: Hansen, K. F. & Henry, A. F.
Item Type: Refine your search to only Report
open access

Annual Report of the Wind Characteristics Program Element for the Period April 1976 Through June 1977

Description: The Wind Characteristics Program Element (WCPE) is a service element to provide meteorological information to other parts of the Wind Energy Conversion Program. In this role, the WCPE has as its general objective acceleration of the development, commercialization and utilization of reliable and economically viable wind energy conversion systems (WECS). This report discusses the work undertaken in the areas of design and performance evaluation, site selection, and presiting evaluation from April… more
Date: July 1, 1977
Creator: Elderkin, C. E. & Ramsdell, J. V.
Item Type: Refine your search to only Report
open access

Anomalous slowing of a perpendicularly-injected ion beam in both quasilinear and trapping regimes

Description: The anomalous slowing of an ion beam injected perpendicularly to the confining magnetic field of a low ..beta.. plasma is experimentally verified in the nonlinear stages of the excited lower-hybrid instability. Furthermore, a transition of the main nonlinear mechanism from the quasilinear to the particle trapping regime is demonstrated by varying beam parameters.
Date: July 1, 1977
Creator: Yamada, M. & Seiler, S. W.
Item Type: Refine your search to only Report
open access

Appendix to Health and Safety Laboratory environmental quarterly report. [Fallout radionuclides deposited and in surface air at various world sites; /sup 137/Cs and /sup 90/Sr in milk and drinking water in New York City; and stable Pb in surface air]

Description: Tabulated data are presented on the deposition of fallout /sup 89/Sr and /sup 90/Sr at various world land sites through 1976; the ..gamma.. spectra and content of /sup 7/Be, /sup 95/Zr, /sup 137/Cs, /sup 144/Ce, /sup 90/Sr, /sup 210/Pb, /sup 238/Pu, /sup 239/Pu, and stable Pb in samples of surface air collected during 1966 at various world sites; and the content of fallout /sup 137/Cs and /sup 90/Sr in samples of drinking water and milk collected in New York City through 1976. (CH)
Date: July 1, 1977
Creator: Hardy, E. P. Jr.
Item Type: Refine your search to only Report
open access

Application of direct peak analysis to energy dispersive x-ray fluorescence spectra

Description: A modified Covell method for direct peak analysis has been applied to energy dispersive x-ray fluorescence spectra. The method is background independent and is well-suited to computerized data reduction. It provides acceptable precision, minimizes errors from instrumental gain shift, and permits peak overlap correction. Peak overlap errors exhibit both positive and negative nodes as a function of peak separation distance, and are corrected using concentration ratios determined from thin, single… more
Date: July 1, 1977
Creator: Nielson, K. K.
Item Type: Refine your search to only Report
open access

Applications of induction linac technology to heavy ion fusion

Description: Evaluation of the application of heavy ion accelerators to ignite d-t pellets in a thermonuclear reactor is discussed. Accelerator design requirements considered include transport-limited current, beam injection conditions, and pulse bunching and focusing characteristics. The desirability of resonant and non-resonant accelerating structures is comparatively examined. The required power system switch tubes are discussed. It is concluded that heavy ion accelerators could offer a promising solutio… more
Date: July 1, 1977
Creator: Faltens, A. & Keefe, D.
Item Type: Refine your search to only Article
open access

Applications of the probability table method to practical problems. [Suitability of ALICE code]

Description: The objective of using the probability table method (PTM) was to use a continuous-energy Monte Carlo code in which the cross sections are given as multigroup constants and yet to account for self-shielding within each group. In order to achieve this objective, the PTM was extended to deterministic methods. The ALICE Monte Carle Neutron Transport Code uses the PTM for all 175 energy groups which span the energy range from thermal to 20 MeV. The TART, ALICE, and MCN codes were used to determine t… more
Date: July 1, 1977
Creator: Plechaty, E. F.; Cullen, D. E. & Levitt, L.
Item Type: Refine your search to only Article
open access

Appraisal study of the geothermal resources of Arizona and adjacent areas in New Mexico and Utah and their value for desalination and other uses

Description: An appraisal investigation of the geothermal resources of a portion of the Lower Colorado River Region of the U.S. Bureau of Reclamation is reported. The study area includes most of Arizona, part of western New Mexico west of the continental divide, and a small part of southwestern Utah. Almost 300 water samples have been collected from the study area and chemically analyzed. These samples include hot wells and springs in addition to nearby nonthermal waters to help establish background chemist… more
Date: July 1, 1977
Creator: Callender, Jonathan F.; Swanberg, Chandler A.; Morgan, Paul; Stoyer, Charles H. & Witcher, James C.
Item Type: Refine your search to only Report
open access

Artificial-Recharge Tests in Upper Black Squirrel Creek Basin, Jimmy Camp Valley, and Fountain Valley, El Paso County, Colorado

Description: Abstract: Nine artificial-recharge pits were excavated in the alluvium in upper Black Squirrel Creek basin, Jimmy Campy Valley, and in the alluvium overlying the Widefield aquifer in Fountain Valley. Each artificial-recharge site was instrumented to measure inflow, stage fluctuations, and water-table fluctuations. Artificial-recharge tests conducted in upper Black Squirrel Creek basin indicated that the average adjusted rates of infiltration for the three sites ranged from 1.6 to 2.4 feet (0.5… more
Date: July 1977
Creator: Emmons, Patrick J.
Item Type: Refine your search to only Report
open access

Automatic duress alarms through physiological response monitoring

Description: Physiological response monitoring under controlled conditions can provide an effective means for passively determining if the wearer is under moderate to severe stresses. By monitoring the heart rate (HR) and galvanic skin response (GSR) of an individual, it is possible to detect in real time the increase in heart rate and GSR levels due to physiological reactions to mental duress. With existing physiological monitoring equipment, however, the work load of the wearer must be well defined since … more
Date: July 1, 1977
Creator: Roehrig, S. C.
Item Type: Refine your search to only Report
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