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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

Preliminary evaluation of two-element optical concentrators for use in solar photovoltaic systems

Description: The objective of this program was: to evaluate for photovoltaic applications the use of the compound parabolic concentrator design as a field collector--in conjunction with a primary focusing concentrator. The primary focusing concentrator may be a parabolic reflector, an array of Fresnel mirrors, a Fresnel lens, or some other type; Select several candidate configurations of such compound systems (focusing concentrators/CPC field collectors); Perform an analytic evaluation of the technical perf… more
Date: June 30, 1975
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

Functional Design Criteria Additional High-Level Waste Storage Facilities

Description: Six one-million-gallon double shell waste storage tanks will be constructed for safe and reliable containment and storage of high-level radioactive wastes. The design and safety features of these tanks are discussed including: architecture; structure; primary and secondary tanks; reinforced concrete tank; tank dome penetrations; processing and transfer facilities; piping; auxiliary equipment; pumps; slurry distributors; and ventilation. (DC)
Date: June 30, 1975
Creator: Tanaka, K. H.
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
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