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Small power systems study. Volume. Study results. Technical summary report

Description: The Division of Solar Technology of the Department of Energy is currently examining the market potential of a number of dispersed solar energy systems, including the small (less than or equal to 10 MW/sub e/) solar thermal power system. Small fossil-fueled generating units in the United States utility system, (i.e., investor-owned, municipal, and cooperatives) have a current capacity of approximately 8000 MW/sub e/ or about 1.5 percent of the total US electrical capacity, and provide a large potential market for small solar thermal power systems. The Small Power Systems Study has as its objective the determination of conditions under which small (less than or equal to 10 MW/sub e/) solar thermal power units can provide cost-effective electrical power to a variety of users. Potential users, in addition to the utility systems; include Department of Defense installations and applications, remote mining and/or lumbering operations, and other industrial power systems with and without cogeneration. The first year's results on the Small Power Systems Study are summarized. The data base used and the breakeven cost analysis are discussed. Information on both small (less than or equal to 10 MW/sub e/) generating units and the utility systems using them is presented as well as data on fossil fuel costs, solar plant costs, and solar insolation values. The results of a survey of Department of Defense (DOD) worldwide electrical generating capacity at its military bases and on a potential DOD application are presented. Information on a potential small solar power system experiment in the interior of Alaska is given, and a limited amount of information on a remote application which would provide power or a large open pit copper mine is presented. Volume II of this Technical Summary Report contains an inventory, by state, of the small (less than or equal to 10 MW/sub e/) …
Date: May 31, 1978
Creator: Sitney, L.R.
Partner: UNT Libraries Government Documents Department
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Phase 2 of the Array Automated Assembly Task for the Low Cost Solar Array Project. Quarterly report 5, October 1-December 31, 1978

Description: Various top contact metal systems have been studied. Only Ti-Pd-Cu approaches baseline (Ti-Pd-Ag) quality, but this system shows a lack of long-term stability. Aluminum back surface field structures have been fabricated and thicknesses of p/sup +/ material of up to 7.0 microns have been achieved with open circuit voltages of 0.59V. A general purpose ultrasonic welder has been purchased and tests using various metal foils are under way. During fabrication of the demonstration module, several cells became cracked. Due to redundancy of interconnections, the module was not open circuited but the efficiency was reduced to 8.8%. The broken cell was interconnected with a strap across the back and the efficiency was increased to 11.5%. A cost analysis (SAMICS) was made using a process sequence developed during Phase 1 of this contract. The results indicate a selling price of $0.56/watt peak (in 1986 with 1975 dollars).
Date: January 31, 1979
Creator: Campbell, R. B.; Page, D. J.; Rai-Choudhury, P.; Seman, E. J.; Hanes, M. H.; Rohatgi, A. et al.
Partner: UNT Libraries Government Documents Department
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Simulation and design of solar thermal processes

Description: Research on simulation using TRNSYS and FCHART methods is described including systems analysis, user services, design procedures, and model validation. (MHR)
Date: October 31, 1979
Partner: UNT Libraries Government Documents Department
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Fixed-bed gasification research using US coals. Volume 2. Gasification of Jetson bituminous coal

Description: A single-staged, fixed-bed Wellman-Galusha gasifier coupled with a hot, raw gas combustion system and scrubber has been used to gasify numerous coals from throughout the United States. The gasification test program is organized as a cooperative effort by private industrial participants and governmental agencies. The consortium of participants is organized under the Mining and Industrial Fuel Gas (MIFGa) Group. This report describes the gasification testing of Jetson bituminous coal. This Western Kentucky coal was gasified during an initial 8-day and subsequent 5-day period. Material flows and compositions are reported along with material and energy balances. Operational experience is also described. 4 refs., 24 figs., 17 tabs.
Date: March 31, 1985
Creator: Thimsen, D.; Maurer, R. E.; Pooler, A. R.; Pui, D.; Liu, B. & Kittelson, D.
Partner: UNT Libraries Government Documents Department
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Baseline Gas Turbine Development Program. Twenty-First Quarterly Progress Report

Description: Progress is reported for a program whose goals are to demonstrate an experimental upgraded gas turbine-powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine-powered, compact-size American automobile. Activity during this twenty-first program quarter has continued to emphasize development towards correcting a power deficiency in the upgraded engine. Efforts are also being directed towards reducing fuel usage through improved heat recovery and towards improving the mechanical reliability and control of the engine.
Date: January 31, 1978
Partner: UNT Libraries Government Documents Department
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Rapid pressure swing absorption cleanup of post-shift reactor synthesis gas

Description: This investigation is concerned with the separation of gas mixtures using a novel concept of rapid pressure swing absorption (RAPSAB) of gas in a stationary absorbent liquid through gas-liquid interfaces immobilized in the pore mouths of hydrophobic microporous membranes. The process is implemented in a module well-packed with hydrophobic microporous hollow fiber membranes. The specific objectives are (1) to fiber membranes. The specific objectives are (1) to develop a theoretical model which will provide guidelines for selecting an efficient RAPSAB process cycle which includes desorption; (2) to demonstrate the concept experimentally with a simple gas mixture (e.g., Co{sub 2}-N{sub 2}) and a simple absorbent liquid such as water, and (3) to extend the concept to reactive absorbent liquids for the separation of CO, Co{sub 2} from the post-shift reactor synthesis gas. A simplified theoretical description of the novel rapid pressure swing absorption process has been developed. The absorption part of the pressure swing absorption cycle has been predicted for CO{sub 2}-N{sub 2}-water system. Numerical simulation of the model is being carried out for different operating conditions for selecting an optimum pressure swing cycle.
Date: October 31, 1991
Creator: Sirkar, K. K.; Majumdar, S. & Bhaumik, S.
Partner: UNT Libraries Government Documents Department
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Hydrogeochemical and stream sediment reconnaissance basic data for Las Cruces quadrangle, New Mexico

Description: Field and laboratory data are presented for 501 water samples and 1817 sediment samples from the Las Cruces Quadrangle, New Mexico. The samples were collected and uranium analysis performed by Los Alamos National Laboratory; multielement analysis and data reporting were performed by the Uranium Resource Evaluation Project at Oak Ridge, Tennessee.
Date: August 31, 1981
Partner: UNT Libraries Government Documents Department
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Fixed-bed gasification research using US coals. Volume 3. Gasification of Rosebud sub-bituminous coal

Description: A single-staged, fixed-bed Wellman-Galusha gasifier coupled with a hot, raw gas combustion system and scrubber has been used to gasify numerous coals from throughout the United States. The gasification test program is organized as a cooperative effort by private industrial participants and governmental agencies. The consortium of participants is organized under the Mining and Industrial Fuel Gas (MIFGa) Group. This report is the third volume in a series of documents prepared by Black, Sivalls and Bryson, Incorporated and describes the gasification of Rosebud subbituminous coal during the time period November 2-20, 1982. Test results and data are presented for the gasification of the coal and the operation of a slipstream tar scrubber to cool the gas and remove condensed tar. 5 refs., 29 figs., 18 tabs.
Date: March 31, 1985
Creator: Thimsen, D.; Maurer, R. E.; Pooler, A. R.; Pui, D.; Liu, B. & Kittelson, D.
Partner: UNT Libraries Government Documents Department
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Federal regulation of the pipeline industry. A summary review. Technical report, Task 2

Description: The principal purposes of this report are to identify the jurisdiction areas of the federal pipeline regulating agencies, and to examine the amenability of the regulatory system to the introduction of energy-conservative new technology into the pipeline industry. The history, scope, and agency structure of state and federal regulation are recounted and some gaps, overlaps, and ambiguities are identified. The only significant inhibitory effects upon technological innovation are found to derive from the FPC and ICC limits upon profit, the 1941 Justice Department consent decree limiting dividends to shipper-owned pipelines, and the income tax rules governing recovery of investment credits and startup losses. Effects of these limits are explored by simulation studies using the Systems, Science and Software pipeline economic model (PEM). Two new concepts of regulation are proposed which would neutralize the inhibitory effect of the present regulatory system and would motivate pipeline operators to conserve energy: one, the use of a national equivalent value in the economic trade-off analyses which justify entry of a technological innovation into the rate base (valuation); and two, a valuation allowance which would reverse the presently often-existing situation and insure that the pipeline operator would realize a greater profit from saving energy than from wasting it.
Date: May 31, 1977
Creator: Banks, W. F.
Partner: UNT Libraries Government Documents Department
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Small power systems study technical summary report. Volume II. Inventory of small generating units in U. S. utility systems

Description: Data identifying small (less than or equal to 10 MW) power units in the United States are tabulated. The data are listed alphabetically by state and are reported sequentially for investor owned utilities, municipal utilities, and electrical cooperatives and other utility systems. For a given utility system, the generating units are divided into steam turbines, diesel generators and gas turbines. The number and size of generating units are listed. A summary tabulation of the number of generating units of each type and total generating capacity by state is presented.
Date: May 31, 1978
Creator: Sitney, L.R.
Partner: UNT Libraries Government Documents Department
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Preparation and evaluation of advanced electro-catalysts for phosphoric acid fuel cells. Eighth quarterly report, October-December 1981. [Platinum]

Description: In the development of new and highly efficient porous electrocatalysts, two cooperative phenomena are required. The first is an increase in the electrocatalytic activity of the catalyst particle, and the second is the availability of that electrocatalyst particle for the electrochemical reaction. These two processes interact with each other in such a way that improvements in the electrochemical activity must be coupled with improvements in the availability of the electrocatalyst for reaction. Since cost effective and highly reactive electrocatalysts have been developed under this program, the utilization of the electrocatalyst particles in the porous electrode structures is addressed. Based on the performance of the electrocatalysts in porous electrode structures, it is shown that a large percentage of the electrocatalyst in anode structures is not utilized. This low utilization translates directly and dramatically into a noble metal cost penalty for the fuel cell. Dramatic improvements in the cost effectiveness of the fuel cell will be achieved by improvements in electrocatalyst catalyzation technology and electrode structure technology.
Date: December 31, 1981
Creator: Stonehart, P.; Baris, J.; Hochmuth, J. & Pagliaro, P.
Partner: UNT Libraries Government Documents Department
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Photochemical solar energy conversion utilizing semiconductors localized in membrane-mimetic systems

Description: Extending the frontiers of colloidal photochemistry and colloidal electrochemistry to solar photochemistry research had been the main objective of this research. More specific objectives of this proposal include the examination of semiconductor-particle-mediated photoelectron transfer and photoelectric effects in different membrane mimetic systems. Emphasis had been placed on developing bilayer lipid membranes and Langmuir-Blodgett films as new membrane-mimetic systems, as well as on the characterization and utilization of these systems.
Date: August 31, 1991
Creator: Fendler, J.H.
Partner: UNT Libraries Government Documents Department
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Multiflash feed-and-bleed coupling for the evaporation and crystallization industry. Technical report, January 1-March 31, 1977

Description: The following are discussed: each of the three candidate industries (preserved fruits and vegetables, sugar and confectionary products, and chemicals) and how they were chosen; other industries that might use geothermal brine in their evaporation/crystallization operations; contacts made with people in these industries, and with manufacturers of evaporators and crystallizers; modifications made in the evaporator heat and material balance computer program; and work being done on well/pipeline economics and the information available for this analysis. (MHR)
Date: March 31, 1977
Creator: Basuino, D. J.; Doyle, P. T. & May, S. C.
Partner: UNT Libraries Government Documents Department
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Linear-motor drives for machine tools

Description: Conventional techniques to position moving platforms on precision machines have relied heavily on mechanical drives such as the ball-nut/lead-screw system. Unfortunately, as positioning tolerances become more and more demanding, the cyclic errors-inherent even in precision gear drives-contribute an excessive amount of positioning uncertainty. The linear-motor drive system is one approach to provide a smooth, accurate, vibration-free method for locating a moving platform. Some existing uses of linear motors in industry as well as potential future applications on precision machines are discussed.
Date: December 31, 1979
Creator: Barkman, W.E.
Partner: UNT Libraries Government Documents Department
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K-Ar dating of young volcanic rocks

Description: Potassium-Argon (K-Ar) age dates were determined for forty-two young geologic samples by the Laboratory of Isotope Geochemistry, Department of Geosciences, in the period February 1, 1986 to June 30, 1989. Under the terms of Department of Energy Grant No. FG07-86ID12622, The University of Arizona was to provide state-of-the-art K-Ar age dating services, including sample preparation, analytical procedures, and computations, for forty-two young geologic samples submitted by DOE geothermal researchers. We billed only for forty samples. Age dates were determined for geologic samples from five regions with geothermal potential: the Cascade Mountains (Oregon); the Cascade Mountains (Washington); Ascension Island, South Atlantic Ocean; Cerro Prieto, Mexico; and Las Azufres, Mexico. The ages determined varied from 5.92 m.a. to 0.62 m.a. The integration of K-Ar dates with geologic data and the interpretation in terms of geologic and geothermal significance has been reported separately by the various DOE geothermal researchers. Table 1 presents a detailed listing of all samples dated, general sample location, researcher, researcher's organization, rock type, age, and probable error (1 standard deviation). Additional details regarding the geologic samples may be obtained from the respective geothermal researcher. 1 tab.
Date: January 31, 1991
Creator: Damon, Paul E. & Shafiqullah, Muhammad
Partner: UNT Libraries Government Documents Department
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Parameterization of the bremsstrahlung spectrum

Description: A parameterization is provided for the bremsstrahlung spectrum in the incident electron energy range 10 to 500 keV for all elements, with particular emphasis on the range 20 to 100 keV for Z = 41 to 92. A general accuracy of 20% is achieved, with 50% in the worst cases, in most ranges utilizing simple one variable functions.
Date: August 31, 1981
Creator: Feng, I.J. & Pratt, R.H.
Partner: UNT Libraries Government Documents Department
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Annual technical progress report: reactor safety, Government fiscal year 1978

Description: Progress in LMFBR safety studies on accident debris behavior is reported under the following subtask titles: high-temperature-concentration aerosols, large-scale molten fuel tests, sodium release tests, and risk analysis.
Date: December 31, 1978
Partner: UNT Libraries Government Documents Department
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Real-time multi-dimensional processing hardware designs research activities

Description: In this final report, we summarize some of our results from September 1989 to October 1990. The design, construction, and testing of a four-processor prototype multi-processor (RTP) board using TI TMS320C25 DSP chips has been completed and is reported upon in our separately submitted Final Report on the RADON TRANSFORM COMPUTER'' Project.'' The design of our fully custom CMOS VLSI chip has been completed. The chip has been designed, the layout completed, and the chip is now going through its final pre-fabrication simulations. We are now finishing the extensive detailed final documentation of the R/Bchip. This extensive documentation will be provided to Steve Azevedo when we have submitted the chip for fabrication. The present status of the custom chip design activity is summarized in Section II. Evaluations of the hardware requirements for fast filtering of data for filtered backprojection (item 3) have been completed and are summarized in our separately submitted Final Report on the RADON TRANSFORM COMPUTER'' Project.'' We briefly summarize the new custom CMOS VLSI unified Radon transform/backprojection IC architecture, layout, and simulated performance.
Date: October 31, 1990
Creator: Current, W. (California Univ., Davis, CA (USA). Dept. of Electrical Engineering and Computer Science)
Partner: UNT Libraries Government Documents Department
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Study of Fast Reactor Meltdown Accidents Using Simulant Materials

Description: Report issued by the APDA over studies conducted on reactor meltdown accidents. The studies incorporated the use of simulation materials. Methods and results of the studies are presented and discussed. This report includes tables, illustrations, and photographs.
Date: August 31, 1963
Creator: Huebotter, P. R.
Partner: UNT Libraries Government Documents Department
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Removal of H/sub 2/S from geothermal steam. Semi-annual report, April 1-October 31, 1975

Description: The program objective is to identify and evaluate a technique to remove hydrogen sulfide from geothermal steam before it is used for power generation. The last six months were spent in the literature search, sorbent preparation and evaluation, and construction of an experimental apparatus. Zn0, mentioned in the original proposal as a good candidate for H/sub 2/S adsorption, was verified as such by the literature search and laboratory experiments. However, regeneration of sulfided sorbent proved to be difficult. The interests were, then, switched to formulating sorbents made of mixtures of different kinds of metal oxides. At present, two sorbents were formulated which, when evaluated with a gas adsorption apparatus in the laboratory, possess better H/sub 2/S adsorption-regeneration capabilities than Zn0 or sorbents obtained from catalyst manufacturers. Large-scale gas adsorption equipment for use with simulated geothermal steam has been designed, built and shakedown operation of the equipment is in progress.
Date: October 31, 1975
Creator: Li, C.T.
Partner: UNT Libraries Government Documents Department
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Global Spent Fuel Logistics Systems Study (GSFLS). Volume 3A. GSFLS technical analysis (appendix). Interim report

Description: This report is a part of the interim report documentation for the Global Spent Fuel Logistics System (GSFLS) study. The technical and financial considerations underlying a global spent fuel logistics systems have been studied and are reported. The Pacific Basin is used as a model throughout this report; however the stated methodology and, in many cases, considerations and conclusions are applicable to other global regions. Spent fuel discharge profiles for Pacific Basin Countries were used to determine the technical systems requirements for alternative concepts. Functional analyses and flows were generated to define both system design requirements and logistics parameters. A technology review was made to ascertain the state-of-the-art of relevant GSFLS technical systems. Modular GSFLS facility designs were developed using the information generated from the functional analysis and technology review. The modular facility designs were used as a basis for siting and cost estimates for various GSFLS alternatives. Various GSFLS concepts were analyzed from a financial and economic perspective in order to provide total concepts costs and ascertain financial and economic sensitivities to key GSFLS variations. Results of the study include quantification of GSFLS facility and hardware requirements; drawings of relevant GSFLS facility designs; system cost estimates; financial reports - including user service charges; and comparative analyses of various GSFLS alternatives.
Date: January 31, 1978
Partner: UNT Libraries Government Documents Department
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