597 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Power Generation"  
Results: 1 - 24 next
open access

Power excitation by the use of a rf wiggler

Description: It is well-known that there are difficulties to obtain rf power sources of significant amount for frequencies larger than 3 GHz. Yet, rf sources in the centimeter/millimeter wavelength range would be very useful to drive, for example, high-gradient accelerating linacs for electron-positron linear colliders. We would like to propose an alternative method to produce such radiation. It makes use of a short electron bunch traveling along the axis of a waveguide which is at the same time excited by … more
Date: January 1, 1992
Creator: Ruggiero, Alessandro G.
Partner: UNT Libraries Government Documents Department
open access

Mirror hybrid reactor studies

Description: The hybrid reactor studies are reviewed. The optimization of the point design and work on a reference design are described. The status of the nuclear analysis of fast spectrum blankets, systems studies for fissile fuel producing hybrid reactor, and the mechanical design of the machine are reviewed. (MHR)
Date: January 19, 1978
Creator: Bender, D.J.
Partner: UNT Libraries Government Documents Department
open access

Dry hot rock systems

Description: No Description Available.
Date: January 1, 1975
Creator: Smith, M. C.
Partner: UNT Libraries Government Documents Department
open access

Uncertainty in the power distribution for a fast reactor burnup cycle

Description: Demonstration that advanced reactor designs satisfy safety and performance goals requires the analysis of uncertainties in calculated reactor characteristics. Two of the important performance characteristics of advanced liquid metal reactors (LMR) are the burnup reactivity swing and the local power peaking factor. Previous work reported a study of the uncertainty in the burnup reactivity swing attributable to nuclear data uncertainties for a typical advanced LMR design. The results are reported… more
Date: January 1, 1989
Creator: Downar, D.J.; Khalil, H. (Purdue Univ., Lafayette, IN (USA) & Argonne National Lab., IL (USA))
Partner: UNT Libraries Government Documents Department
open access

Potential energy savings in commercial/residential communities based on integrated systems design

Description: Integrated Community Energy Systems (ICES) offer the potential of meeting the total energy requirements of communities in an energy-conserving cost-effective manner. This is accomplished mainly by (1) utilizing waste heat from electrical power generation, (2) using solid waste to help meet thermal and fuel energy demands, (3) using solar and other advanced technologies either in a central plant or dispersed in the community, and (4) developing control and operating strategies along with energy-… more
Date: January 1, 1977
Creator: Holtz, R.E. & Marciniak, T.J.
Partner: UNT Libraries Government Documents Department
open access

Price incentives of industrial cogeneration

Description: One of the strategies of current national energy policy is to promote the combined production of electricity and steam at industrial sites. The impact of relative electricity and fuel prices on the decision to cogenerate is examined here. The strategy of the study is to compare the costs of two firms that are identical except for the way they acquire electricity: one firm purchases electricity while the other cogenerates. Using this framework, the relationship between the elasticity of the pric… more
Date: January 1, 1980
Creator: Maddigan, R.J.
Partner: UNT Libraries Government Documents Department
open access

Conservation and the contributions from advanced energy sources

Description: Even if conservation efforts are very effective, this nation cannot be energy self-sufficient by 1985. This paper discusses the advanced energy sources being developed by ERDA, predicts a contribution of 1 Q (quadrillion Btu) or less in 1985, and estimates perhaps optimistically that these new technologies can contribute as much as 25 Q of our energy needs by 2000 A.D.
Date: January 1, 1977
Creator: Beall, Jr., S. E.
Partner: UNT Libraries Government Documents Department
open access

Technological limitations on nuclear-electric space-power systems

Description: Different types of space power reactors are compared. Information is presented concerning the choice of fluid circuit structural materials; fuel elements, comparison of one-loop, two-loop, and three-loop systems; reliability of mechanical components; reliability of control systems; zero-g problems; and hazards problems.
Date: January 1, 1982
Creator: Fraas, A. P.
Partner: UNT Libraries Government Documents Department
open access

Some implications for mirror research of the coupling between fusion economics and fusion physics

Description: The thesis is made that physics understanding and innovation represent two of the most important ingredients of any program to develop fusion power. In this context the coupling between these and the econmics of yet-to-be realized fusion power plants is explored. The coupling is two-way: realistic evaluations of the economic (and environmental) requirements for fusion power systems can influence the physics objectives of present-day fusion research programs; physics understanding and innovative… more
Date: January 1, 1980
Creator: Post, Richard F.
Partner: UNT Libraries Government Documents Department
open access

Screening method for wind energy conversion systems

Description: A screening method is presented for evaluating wind energy conversion systems (WECS) logically and consistently. It is a set of procedures supported by a data base for large conventional WECS. The procedures are flexible enough to accommodate concepts lacking cost and engineering detail, as is the case with many innovative wind energy conversion systems (IWECS). The method uses both value indicators and simplified cost estimating procedures. Value indicators are selected ratios of engineering p… more
Date: March 1, 1980
Creator: McConnell, R.D.
Partner: UNT Libraries Government Documents Department
open access

Economic implications of fusion-fission energy systems

Description: The principal conclusions that can be made based on the estimated costs reported in this paper are twofold. First, hybrid reactors operating symbiotically with conventional fission reactors are a potentially attractive supply alternative. Estimated hybrid energy system costs are slightly greater than estimated costs of the most attractive alternatives. However, given the technological, economic, and institutional uncertainties associated with future energy supply, differences of such magnitude … more
Date: April 1, 1979
Creator: Deonigi, D.E. & Schulte, S.C.
Partner: UNT Libraries Government Documents Department
open access

Factors influencing electric utility expansion. Volume II

Description: This report, Vol. 2, submitted by the General Electric Co., identifies factors that should be considered in planning interconnected systems and discusses how these factors relate to one another. The objective is to identify all the factors and classify them by their use and importance in arriving at a decision. Chapter 2 discusses the utility system and its system behavior characteristics, emphasizing behavior that affects the planning of the bulk-power generation and transmission system. Chapt… more
Date: January 1, 1977
Creator: Masud, E.
Partner: UNT Libraries Government Documents Department
open access

Decision analysis: a tool to guide the R and D selection of alternative energy sources

Description: The array of alternative energy sources which are vying for the federal government's R and D dollar is formidable when compared to the politically acceptable amount which can be used to fund the research. To guide how these funds should be dispersed, a rational, defensible procedure is needed which can repeatedly be applied as new technologies and new information become available. The procedure advanced in this paper is a decision analysis technique known as multi attribute decision analysis (M… more
Date: May 1, 1980
Creator: Kriz, T.
Partner: UNT Libraries Government Documents Department
open access

Potential minimum cost of electricity of superconducting coil tokamak power reactors

Description: The potential minimum cost of electricity (COE) for superconducting tokamak power reactors is estimated by increasing the physics (confinement, beta limit, bootstrap current fraction) and technology (neutral beam energy, toroidal field (TF) coil allowable stresses, divertor heat flux, superconducting coil critical field, critical temperature, and quench temperature rise) constraints far beyond those assumed for ITER until the point of diminishing returns is reached. A version of the TETRA syste… more
Date: January 1, 1989
Creator: Reid, R.L. & Peng, Y-K. M.
Partner: UNT Libraries Government Documents Department
open access

Accelerator technology for Los Alamos nuclear-waste-transmutation and energy-production concepts

Description: Powerful proton linacs are being studied at Los Alamos as drivers for high-flux neutron sources that can transmute long-lived fission products and actinides in defense nuclear waste, and also as drivers of advanced fission-energy systems that could generate electric power with no long-term waste legacy. A transmuter fed by an 800-MeV, 140-mA cw conventional copper linac could destroy the accumulated {sup 99}Tc and {sup 129}I at the DOE's Hanford site within 30 years. A high-efficiency 1200-MeV,… more
Date: January 1, 1991
Creator: Lawrence, G. P.; Jameson, R. A. & Schriber, S. O.
Partner: UNT Libraries Government Documents Department
open access

Dynamics analyses of space power systems using the salt code

Description: The dynamic behavior of large space power systems has been identified as a significant technical issue. To date several analyses of reactor kinetics have been reported in the literature, but there have been few (if any) studies of the dynamic response of the entire space power system. The problem is complex and required analytical methods are not generally available. Furthermore, given the conceptual state of current MMW space power systems designs, dynamic models of components are not generall… more
Date: January 1, 1989
Creator: Geyer, H.K.; Bhattacharyya, S.K.; Hanan, N.A.; Livingston, J.M. (Argonne National Lab., IL (USA) & Westinghouse Electric Corp., Pittsburgh, PA (USA))
Partner: UNT Libraries Government Documents Department
open access

Thermal energy storage for cogeneration applications

Description: Cogeneration is playing an increasingly important role in providing energy efficient power generation and thermal energy for space heating and industrial process heat applications. However, the range of applications for cogeneration could be further increased if the generation of electricity could be coupled from the generation of process heat. Thermal energy storage (TES) can decouple power generation from the production of process heat, allowing the production of dispatchable power while full… more
Date: April 1, 1992
Creator: Drost, M.K. & Antoniak, Z.I.
Partner: UNT Libraries Government Documents Department
open access

Perspective on photovoltaic amorphous silicon

Description: Amorphous silicon is a thin film option that has the potential for a cost-effective product for large-scale utility photovoltaics application. The initial efficiencies for single-junction and multijunction amorphous silicon cells and modules have increased significantly over the past 10 years. The emphasis of research and development has changed to stabilized efficiency, especially that of multijunction modules. NREL has measured 6.3%--7.2% stabilized amorphous silicon module efficiencies for U… more
Date: May 1, 1992
Creator: Luft, W.; Stafford, B. & von Roedern, B.
Partner: UNT Libraries Government Documents Department
open access

Tritium and neutron measurements of a solid state cell

Description: A solid state cold fusion'' cell was constructed to test for non-equilibrium fusion in a solid. The stimulus for the design was the hypothesis that the electrochemical surface layer in the Pons- Fleischmann cell could be replaced with a metal-insulator- semiconductor (MIS) barrier. Cells were constructed of alternating layers of palladium and silicon powders pressed into a ceramic form and exposed to deuterium gas at 110 psia resulting in a D/Pd ratio of 0.7. Pulses of current were passed throu… more
Date: January 1, 1989
Creator: Claytor, T. N.; Seeger, P. A.; Rohwer, R. K.; Tuggle, D. G. & Doty, W. R.
Partner: UNT Libraries Government Documents Department
open access

Reliability problems in power-generation systems

Description: Some widely publicized incidents have called attention to the problems of reliability, safety, and dependability of power-generation systems, increasing public pressure for additional safety guarantees in power systems. The tendency has been to demand guarantees to zero-risk, an attitude which both augments and is augmented by the slow-growth ethic that has become familiar through the 1970s. It is the suggestion of this discussion paper that, regardless of the merits of different political posi… more
Date: January 1, 1980
Creator: Bryson, M.C. (ed.)
Partner: UNT Libraries Government Documents Department
open access

Third international symposium on alcohol fuels technology

Description: At the opening of the Symposium, Dr. Sharrah, Senior Vice President of Continental Oil Company, addressed the attendees, and his remarks are included in this volume. The Symposium was concluded by workshops which addressed specific topics. The topical titles are as follows: alcohol uses; production; environment and safety; and socio-economic. The workshops reflected a growing confidence among the attendees that the alcohols from coal, remote natural gas and biomass do offer alternatives to petr… more
Date: April 1980
Partner: UNT Libraries Government Documents Department
Back to Top of Screen