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Photovoltaic engineering services pertinent to solar energy conversion

Description: The application of the compound parabolic concentrator (CPC) for use with solar cells has been investigated. Experiments with state-of-the-art Si cells in a CPC and under solar concentration were performed. A theoretical model for calculating the behavior of Si solar cells with concentration was developed. Detailed calculations of the energy distribution in the CPC were made. Finally a cost effectiveness analysis shows that the CPC system will produce power at very much lower cost than will fla… more
Date: June 1, 1975
Creator: Bell, R O; Ho, J C.T.; Kurth, W & Surek, T
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Laser fusion study. Final report

Description: The following appendices are included: (1) sensor performance calculation techniques, (2) focus sensing, (3) purchased item data, (4) pointing and focusing configuration tradeoff studies, (5) false start centering sensor, (6) RCA application notes on quad delection, (7) elliptical flex pivot analysis, (8) servo mirrors cross coupling, (9) optical misalignment analysis, (10) stress induced birefrigent quarter-wave retarder, (11) data bulletin on incramute damping alloy, (12) the utilization of s… more
Date: June 1, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Finite element and node point generation computer programs used for the design of toroidal field coils in tokamak fusion devices

Description: The structural analysis of toroidal field coils in Tokamak fusion machines can be performed with the finite element method. This technique has been employed for design evaluations of toroidal field coils on the Princeton Large Torus (PLT), the Poloidal Diverter Experiment (PDX), and the Tokamak Fusion Test Reactor (TFTR). The application of the finite element method can be simplified with computer programs that are used to generate the input data for the finite element code. There are three are… more
Date: June 1, 1975
Creator: Smith, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Review and summary of Solar Thermal Conversion Program planning assistance

Description: The Solar Thermal Conversion Program comprises a major part of the national solar energy program which must be continuously reviewed and modified where necessary. Modifications are typically required to reflect technical achievements and uncertainties which arise from within the program or from other technical programs, changes in budgets available for supporting the program as well as internal program funding priorities, changing goals such as through acceleration or stretch-out of the program… more
Date: June 1, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CARBON-13 NMR STUDIES OF LIQUID CRYSTALS

Description: High resolution, proton decoupled {sup 13}C nmr are observed for a series of neat nematic liquid crystals, the p-alkoxyazoxybenzenes, and a smectic-A liquid crystal, diethylazoxydibenzoate in a magnetic field of 23 kG. The (uniaxial) order parameters S = <P{sub 2}(cos{theta})> are found to be about 0.4 and 0.9 for the nematic and smectic-A phase respectively at the clearing points. The order parameter increases with decreasing temperature in the nematic phase but is constant, or nearly so… more
Date: June 1, 1975
Creator: Allison, Stuart
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Decay Properties of p pi- Systems Produced in Neutron Dissociation at Fermilab Energies

Description: The authors have examined the decay distributions of (p{pi}{sup -}) systems produced in the reaction n + p {yields} (p{pi}{sup -}) + p for neutron momenta between 120 GeV/c and 300 GeV/c. Preliminary analysis of decay moments indicates the presence of large helicity-flip amplitudes even for small (p{pi}{sup -}) mass values, and does not support the hypothesis that the helicity non-flip (p{pi}{sup -}) states are produced peripherally in impact parameter. These results are in approximate agreemen… more
Date: June 1, 1975
Creator: Biel, J.; U., /Rochester; Bleser, E. J.; /Fermilab; Duke, D.; Ferbel, T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Pressure-pulse propagation in piping systems. Final report

Description: Experiments were conducted in which well-characterized pulses were generated in water-filled stainless steel piping systems consisting of a straight section of pipe, an open rectangular loop, and a closed rectangular loop. In some of the experiments, the closed loop was fitted with a standoff pipe that was filled with either water or air. The pulse shapes were typical of those expected in the secondary piping system as a result of a sodium-water reaction in a Liquid Metal Fast Breeder Reactor. … more
Date: June 1, 1975
Creator: Cagliostro, D.J.; Wiersma, S.J. & Florence, A.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coordinated exploration program for geothermal sources on the island of Hawaii

Description: Staff members of the Hawaii Institute of Geophysics carried out an exploration program for geothermal sources on the island of Hawaii by using all relevant geophysical and geochemical methods. Infrared scanning aerial surveys followed by reconnaissance-type electrical surveys and ground noise surveys narrowed down the promising area to the east rift of Kilauea. The surveys carried out over the east rift included magnetic, gravity, and electrical surveys by various methods: microearthquake, surv… more
Date: June 1, 1975
Creator: Furumoto, A.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on steam-generator concept development. [LMFBR]

Description: This report presents a summary of the conceptual design work on commercial steam generators by the General Electric Company for the ERDA Steam Generator Development Program. Three conceptual steam generator designs are included and discussed in some detail; the Hockey Stick, the J-Module and the Straigth Tube with Expansion Bellows, all referenced to a 1500 MWe 4 loop commercial LMFBR design. Single and double tube concept development is summarized and the effect of each upon steam generator re… more
Date: June 1, 1975
Creator: Scott, W.B. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Small-leak behavior: summary report on scoping tests. [LMFBR]

Description: A scoping phase has been completed on a study of small steam leaks in Liquid Metal Fast Breeder Reactor steam generators. Methods were developed to fabricate leaks in the size range of 10/sup -10/ to 10/sup -5/ lb/sec H/sub 2/O in 2 1/4 Cr-1 Mo steam generator tubing of prototypic wall thickness (approx. 0.110 inch). A test system was modified to supply flowing superheated steam at 1525 psig to as many as three specimens immersed in flowing sodium. Test results are presented.
Date: June 1, 1975
Creator: Sandusky, D.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Salt dissolution in oil and gas test holes in central Kansas. Part I. Salt beds in the subsurface in Russell, Lincoln, Ellsworth, Barton, and Rice Counties, central Kansas

Description: The Hutchinson Salt Member of the Permian Wellington Formation is described in a five-county study area of 4,000 square miles. Most of the 22,200 oil and gas test holes in the study area were drilled with fresh water, causing dissolution of the salt during drilling, commonly resulting in borehole enlargement to three times the diameter of the drill bit (some older rotary drilled holes have borehole enlargement up to 10 ft). After drilling ceases, no salt dissolution occurs in oil and gas test h… more
Date: June 1, 1975
Creator: Walters, R. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase 0: goal study for the technical and economic evaluation of the Compound Parabolic Concentrator (CPC) concept applied to solar thermal and photovoltaic collectors. Final report

Description: This report presents the results of a quick, six-week technical and economic evaluation of the compound parabolic concentrator (CPC) solar collector. The purpose of this effort was to provide an initial phase of a goals study that is directed toward recommending relative priorities for development of the compound parabolic concentrator concept. The findings of this study are of a very preliminary nature. Conclusions based on study findings at this depth should be considered preliminary and subj… more
Date: June 1, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improved techniques for the analysis of experiments with polarized targets. [1 to 2 GeV/c, polarization]

Description: An experiment was performed at the Bevatron to measure the polarization in the reaction ..pi../sup -/p ..-->.. ..pi../sup 0/n from a polarized target, at beam momenta between 1 and 2 GeV/c. Concentration is placed on the original aspects of our analysis, in particular: the geometrical reconstruction of the elastic events; the use of the high analyzing power of the reaction studied to probe the polarization of the target in magnitude and distribution; a study of the statistical estimation of the… more
Date: June 1, 1975
Creator: Barrelet, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low Cost High Performance Generator Technology Program. Volume 2. Design Study

Description: The systems studies directed towards up-rating the performance of an RTG using selenide thermoelectrics and a heat source with improved safety are reported. The resulting generator design, designated LCHPG, exhibits conversion efficiency of greater than 10 percent, a specific power of 3 W/lb., and a cost of $6,000/W(e). In the course of system analyses, the significant development activities required to achieve this performance by the 1980 time period are identified.
Date: June 1, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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