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Development of Evaluation Techniques for Electrochemical Energy Storage Systems: Final Report

Description: The development of standardized techniques for the comparative evaluation of electric vehicle battery technologies is summarized. The methodology considers both the traditional measures of battery performance (energy density, energy storage costs, and cycle life) and the equally important usage related battery characteristics (probability of technical success, operating and maintenance parameters, and safety/environmental impact). This comparative rationale is supplemented by the ability to gen… more
Date: March 15, 1980
Creator: Gaines, Lewis H. & Nazimek, Kenneth
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal storage applications workshop. Volume 1. Plenary session analysis

Description: On February 14 and 15, 1978, a workshop on solar power development and thermal and thermochemical energy storage technology was held at Golden, Colorado. These proceedings contain the record of this workshop. They are divided into two volumes. Volume I presents an analysis and condensation of information discussed in round-table plenary sessions.
Date: February 15, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of line focus solar central power systems. Volume II. Systems evaluation

Description: An evaluation was completed to ascertain the applicability of line focus technologies to electrical power applications and to compare their performance and cost potential with point focus central receiver power systems. It was concluded that although the high temperature line focus (SRI) and fixed mirror line focus (GA) concepts duplicate the heat source characteristics and power conversion technology of the central receiver concepts these configurations do not offer a sufficient improvement in… more
Date: March 15, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix B: trade-off studies. Volume II. Appendices. [SPEC-78]

Description: These appendices to the Near Term Hybrid Vehicle Trade-off Studies reports present data on the SPEC-78 computer model for simulating vehicle performance, fuel economy, and exhaust emissions; propulsion system alternatives; lead-acid and sodium-sulfur batteries; and production cost estimates. (LCL)
Date: June 15, 1979
Creator: Traversi, M. & Piccolo, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of voltage control in utility interactive dispersed storage and generation systems

Description: When a small generator is connected to the distribution system, the voltage at the point of interconnection is determined largely by the system and not the generator. This report examines the effect on the generator, on the load voltage and on the distribution system of a number of different voltage control strategies in the generator. Synchronous generators with three kinds of exciter control are considered, as well as induction generators and dc/ac inverters, with and without capacitor compen… more
Date: March 15, 1983
Creator: Kirkham, H. & Das, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Oxygen electrodes for energy conversion and storage. Annual report, 1 October 1977-30 September 1978

Description: Research on the development of high performance, long life O/sub 2/ cathodes for both alkaline and acid electrolytes for a spectrum of applications including industrial electrolysis, fuel cells, and metal-air batteries is described. Oxygen electrocatalysts studied include platinum, silver, underpotential deposited layers and alloy metal layers on noble metal substrates, intercalated graphite, transition metal macrocyclic complexes, and transition metal oxides. Research on gas fed electrodes is … more
Date: January 15, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of line focus solar central power systems. Volume I. Executive summary

Description: An evaluation was completed to ascertain the applicability of line focus technologies to electrical power applications and to compare their performance and cost potential with point focus central receiver power systems. It was concluded that although the high temperature line focus (SRI) and fixed mirror line focus (GA) concepts duplicate the heat source characteristics and power conversion technology of the central receiver concepts these configurations do not offer a sufficient improvement in… more
Date: March 15, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Response of variable impedance stripline to pulse excitation

Description: We describe a simple method to predict the transient response of variable impedance stripline to pulse excitation. The method uses a finite difference based, quasi-static impedance formulation to calculate the reflection coefficient at each point along the direction of pulse propagation and the subsequent short pulse behavior of a variable impedance structure. A Fortran computer program is written to determine the quasi-static impedance. Excellent agreement of better than 1% between the finite … more
Date: December 15, 1984
Creator: McWright, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal energy storage market-oriented background paper

Description: Thermal energy storage (TES) technologies and their applications are discussed. The markets and commercialization status and potential are explored. ERDA TES program plans are presented. It is concluded that the only TES systems ready for immediate commercialization are storage water heating and space heating charged with off-peak electricity. All that is needed for commercialization to occur is the introduction of appropriate split electricity rates or load management contracts. In the near-te… more
Date: June 15, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a practical photochemical energy storage system. Quarterly report

Description: A study of a series of copper(I) compounds which contain a strongly absorbing chromophore (e.g., CuBr(PPh/sub 3/)-(2,2'-bipyridine)) for use as sensitizers in photochemical energy storage systems is described. The generally low sensitization efficiencies of these compounds preclude their use as sensitizers in a practical photochemical energy storage system. Nevertheless, some interesting mechanistic information has emerged from this study, the full details of which are being written for publica… more
Date: September 15, 1978
Creator: Hautala, R.R. & Kutal, C.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase-one experiment test plan solar photovoltaic/thermal residential experiment

Description: Objectives, rationale, and method of a one-year experiment using a residential photovoltaic/thermal power system are presented. Data will be both archived and processed to investigate: (1) series heat pump system performance, and (2) electric utility impacts. A parallel heat pump system will be investigated in a subsequent experiment.
Date: March 15, 1979
Creator: Kern, E.C. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-explosive-driven delay line pulse generator

Description: The inclusion of a delay line circuit into the design of a high-explosive-driven generator shortens the time constant of the output pulse. After a brief review of generator concepts and previously described pulse-shortening methods, a geometry is presented which incorporates delay line circuit techcniques into a coil generator. The circuit constants are adjusted to match the velocity of the generated electromagnetic wave to the detonation velocity of the high explosive. The proposed generator c… more
Date: November 15, 1982
Creator: Shearer, J.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Advanced subsystems development. Second semi-annual progress report, April 1--October 1, 1978

Description: The concept design for a small (less than 10 MWe) solar thermal electric generating plant was completed using projected 1985 technology. The systems requirements were defined and specified. The components, including an engineering prototype for one 15 kWe module of the generating plant, were conceptually designed. Significant features of the small solar thermal power plant were identified as the following: (1) 15-kWe Stirling-cycle engine/alternator with constant power output; (2) 10-meter poin… more
Date: November 15, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Battery charger and state of charge indicator. Final report

Description: The battery charger has a full-wave rectifier in series with a transformer isolated 20 kHz dc-dc converter with high frequency switches which are programmed to actively shape the input ac line current to be a mirror image of the ac line voltage. The power circuit is capable of operating at 2 kW peak and 1 kW average power. The BC/SCI has two major subsystems: (1) the battery charger power electronics with its controls; and (2) a microcomputer subsystem which is used to acquire battery terminal … more
Date: April 15, 1984
Creator: Latos, T.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High repetition rate burst-mode spark gap

Description: Results are presented on the design and testing of a pressurized gas blown spark gap switch capable of high repetition rates in a burst mode of operation. The switch parameters which have been achieved are as follows: 220-kV, 42-kA, a five pulse burst at 1-kHz, 12-ns risetime, 2-ns jitter at a pulse width of 50-ns.
Date: June 15, 1978
Creator: Faltens, A.; Reginato, L.; Hester, R.; Chesterman, A.; Cook, E.; Yokota, T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development of a practical photochemical energy storage system. Annual report, June 15, 1976--June 14, 1977. [Interconversion between norbornadiene and quadricyclene for thermochemical heat storage]

Description: Significant progress toward the development of a solar energy storage system based on the norbornadiene-quadricyclene interconversion has been achieved during the past year. New sensitizers and catalysts have been discovered and conditions found where single cycles of the photosensitization step and the catalytic reversion step appear to be quantitative. Both sensitizers and catalysts have been successfully incorporated onto insoluble polymeric supports. The long term stability of these compone… more
Date: March 15, 1977
Creator: Hautala, R.R. & Kutal, C.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a practical photochemical energy storage system. Quarterly report

Description: The emphasis of work during this past quarter has been on improvement of the performance of immobilized photosensitizers. Prolonged use of Polymer N in the recycling prototype has resulted in gradual deterioration of the behavior of this photosensitizer. Furthermore the opacity of the beads results in an inherent 20% loss in efficiency apparently through light reflection. In an attempt to improve the characteristics with respect to these points considerable effort was devoted in the synthetic g… more
Date: March 15, 1977
Creator: Hautala, R.R. & Kutal, C.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Techno-economic projections for advanced small solar thermal electric power plants to years 1990--2000

Description: Advanced technologies applicable to solar thermal electric power systems in the 1990--2000 time-frame are delineated for power applications that fulfill a wide spectrum of small power needs with primary emphasis on power ratings <10 MWe. Techno-economic projections of power system characteristics (energy and capital costs as a function of capacity factor) are made based on development of identified promising technologies. The key characteristic of advanced technology systems is an efficient low… more
Date: November 15, 1978
Creator: Fujita, T.; Manvi, R.; Roschke, E.J.; El Gabalawi, N.; Herrera, G.; Kuo, T.J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy conservation in citrus processing. Technical progress report No. 2, April 1, 1980-February 28, 1981

Description: Systems that reduce energy usage and are economically viable in the citrus fruit processing industry are identified. The preliminary results of Phase I are presented. Alternative systems to be considered are classified and denoted as central, modular, integrated, and combined. Progress is reported on the central and modular systems. (MCW)
Date: March 15, 1981
Creator: Leo, M. A.; Lari, R. I.; Moore, N. R.; Broussard, M. R. & Gyamfi, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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