Recursos de colección

DSpace at MIT (104.280 recursos)

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1. Reports

Mostrando recursos 1 - 20 de 384

  1. Steam generator tube rupture study

    Free, Scott Thomas; Schor, Andrei L.
    This report describes our investigation of steam generator behavior during a postulated tube rupture accident. Our study was performed using the steam generator, thermal-hydraulic analysis code THERMIT-UTSG. The purpose of our work was to provide an independent assessment of the Los Alamos National Laboratory system code TRAC-PF1 with respect to steam generator tube rupture analysis. Results of our work are presented and compared with previous TRAC-PF1 results. There are substantial differences in the results of the two codes. These discrepancies are discussed and deficiencies in both codes are noted. Our results lead us to believe that further investigation and code...

  2. Final report on Canadian-U.S. natural gas trade

  3. Economic predictions for heat mining : a review and analysis of hot dry rock (HDR) geothermal energy technology

    Tester, Jefferson W.; Herzog, Howard J.
    The main objectives of this study were first, to review and analyze several economic assessments of Hot Dry Rock (HDR) geothermal energy systems, and second, to reformulate an economic model for HDR with revised cost components.

  4. Modelling energy-economy interactions in small developing countries : a case study of Sri Lanka

    Blitzer, Charles R.; Eckaus, Richard S.
    This report is addressed at modelling energy-economy interactions in small developing countries, those with populations less than 20 million or so and where neither the industrial or energy sectors are dominant. The overall objectives of the research were to learn more about how energy-economy interactions can be usefully modelled for policy purposes, to compare the pros and cons of alternative methods which have been used previously, and to test the feasibility of utilizing simple general equilibrium models by constructing an illustrative model for Sri Lanka.

  5. Final report to the National Science Foundation of the project on cartel behavior and exhaustible resource supply : a case study of the world oil market.

    NSF Grant no.

  6. Numerical simulation of fish larvae entrainment at the Millstone Nuclear Power Station

    Dimou, Nadia K.

  7. Flue gas desulfurization : cost and functional analysis of large-scale and proven plants

    Tilly, Jean
    Flue Gas Desulfurization is a method of controlling the emission of sulfurs, which causes the acid rain. The following study is based on 26 utilities which burn coal, have a generating capacity of at least 50 Megawatts (MW) and whose Flue Gas Desulfurization devices have been operating for at least 5 years. An analysis is made of the capital and annual costs of these systems using a comparison of four main processes: lime, limestone, dual alkali and sodium carbonate scrubbing. The functional analysis, based on operability, allows a readjustment of the annual costs and a determination of the main reasons...

  8. Appliance purchase and usage adaptation to a permanent time of day electricity rate schedule

    Hausman, Jerry A.; Trimble, John L.

  9. Sinterable ceramic powders from laser heated gas phase reactions and rapidly solidified ceramic materials : annual report.

    Haggerty, John Scarseth
    CO[subscript 2] lasers have been employed to heat reactant gases to synthesize Si, Si[subscript 3] N[subscript 4] and SiC powders. The powders are small, uniform in size, nonagglomerated, highly pure and of controlled crystallinity; all parameters considered ideal for fabrication of defect-free ceramic parts. The unique and uniform time-temperature histories achievable with laser heating permit these important characteristics to be realized.

  10. Natural gas pipelines after field price decontrol : a study of risk, return and regulation

    Carpenter, Paul R.
    This is a study of a regulated industry undergoing rapid change. For the first time in its history, following the partial decontrol of field prices in 1978, natural gas is being priced at a level which places it in direct competition with competing fuels, chiefly oil. This change is placing considerable stress on the established institutional relationships in the gas industry and is the source of what has been and will continue to be a protracted public policy debate on the subject. It is the chief purpose of this study to interpret the effect of this change on the gas...

  11. Users manual for the LIMIT code : b hydrogen analysis in reactor containments Vincent P. Manno, Michael W. Golay.

    Manno, V.; Golay, M.
    The LIMIT code is a new containment analysis code capable of simulating hydrogen transport events. The BEACON [1] code served as the foundation upon which LIMIT is built. The analytical aspects of LIMIT's features are documented in the work of Manno and Golay [2]. This document is the code users manual. It is assumed that the user also possesses the original BEACON code manual since both documents are required for code utilization.

  12. The Commonwealth Electric Open Planning Project : final report

    Andrews, Clinton J.
    This report describes the development, application and results of an Open Planning Process performed by the M.I.T. Energy Laboratory's Analysis Group for Regional Electricity Alternatives (AGREA) for, and with the support and close cooperation of the Commonwealth Electric Company (COM/Elec).

  13. Adsorption of inorganic contaminants in ponded effluents from coal-fired power plants

    Dzombak, David A.; Morel, Franȯis
    The objectives of this study were [1] to conduct some experimental tests of the surface precipitation adsorption model, and [2] to work on the development of a simple yet widely applicable approach to modelling adsorption of inorganic ions on oxide surfaces. The latter represents the first portion of our continuing effort to develop a data base for adsorption of inorganic contaminants in oxide suspensions.

  14. Fundamental aspects of coal-water fuel droplet combustion and secondary atomization of coal-water mixtures. Volume II, final report

    Beř, J. M.; Sarofim, Adel F.
    This Final Report is issued in two volumes, covering research into the combustion of Coal Water Fuels (CWF). Two separate but related tasks are discussed; Volume I contains results obtained under Task 1 - Fundamental aspects of Coal-Water Fuel Droplet Combustion in which the experiments were carried out in Laminar Flow Reactors. The present report, Volume II, covers experiments under Task 2 - "Secondary Atomization of Coal-Water Mixtures".

  15. Continued development of nodal methods for reactor analysis

    Henry, Allan F.; Dias, Antonio Fernando Vilhena; Francis, Winston H. G.; Parlos, Alexander George; Tanker, Ediz; Tanker, Zeynep
    Sponsored by Consolidated Edison Company of New York, Northeast Utilities Service Company, Pacific Gas & Electric Company, PSE&G Research Corporation.

  16. Fundamental aspects of coal-water fuel droplet combustion and secondary atomization of coal-water mixtures. Volume I, final report

    Sarofim, Adel F.; Beř, J. M.
    This Final Report is issued in two volumes, covering research into the combustion of coal-water fuels (CWF). Two separate but related tasks are discussed; the present report, Volume I, contains results obtained under Task 1 - "Fundamental Aspects of Coal- Water Fuel Droplet Combustion." Volume II describes the work of Task 2 - "Secondary Atomization of Coal Water Mixtures," which included experimental measurements in a Spray Test Facility and in the 1-3 MWth Combustion Research Facility.

  17. An investigation of the numerical treatment of condensation

    Sasson, Joseph; Schor, Andrei L.
    The simulation of complete condensation continues to challenge the numerical methods currently used for multi-phase flow modeling; especially at low pressures, the change of phase process from a two-phase mixture to liquid leads to severe pressure field perturbations and often failure of the calculations. During condensation, the local void fraction and pressure decrease rapidly; at the time of complete condensation, the strong nonlinearities of the equations at the phase-change point lead to convergence difficulties and/or unacceptably large mass or energy errors.

  18. Thermohydraulic analysis of U-tube steam generators

    da Silva, Hugo Cardoso
    Recent trends in plant safety analysis reveal a need for benchmark analytical representations of the steam generators to aid in the improvement of system codes and of fast codes for operator assistance. A model for such applications should exhibit four characteristics. First, it should be capable of representing the entire unit. Second, it should be based on detailed physical models, supplemented by well-tested empirical correlations and utilize a reliable numerical method, while still allowing for the assessment of potentially simplifying assumptions. Third, it should be validated. Fourth, it should provide a basic framework for expansion to severe transient (accident) analysis.

  19. Continued development of the QUANDRY code

    Henry, Allan F.
    Sponsored by Consloidated Edison Company of New York, Northeast Utilities Service Company, Pacific Gas & Electric Company, and PSE&G Research Corporation under the MIT Energy Laboratory Electric Utility Program.

  20. Seasonalepisodic control of acid deposition

    Fay, James A.; Golomb, D.
    This report contains the climatological, technical and economic factors for episodic and seasonal control of emissions in existing power plants. Analyzing a large data set of acid deposition for the years 1982-85, we find that the bulk of acid deposition comes down in a few precipitation episodes per year, mostly concentrated in the summer months. However, the episodes do not occur over wide areas, and are difficult to predict. About 75% of the annual acid deposition occurs during the summer half-year, April through September. Therefore, it would be effective to reduce acid precursor emissions, SO[subscript x] and NO[subscript x], during...

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