83 research outputs found

    Thermal conductance of two dimensional constrictions Interim report

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    Thermal resistance of heat flow through two dimensional symmetrical, and eccentric constriction

    Application of remote sensing for prediction and detection of thermal pollution, phase 2

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    The development of a predictive mathematical model for thermal pollution in connection with remote sensing measurements was continued. A rigid-lid model has been developed and its application to far-field study has been completed. The velocity and temperature fields have been computed for different atmospheric conditions and for different boundary currents produced by tidal effects. In connection with the theoretical work, six experimental studies of the two sites in question (Biscayne Bay site and Hutchinson Island site) have been carried out. The temperature fields obtained during the tests at the Biscayne Bay site have been compared with the predictions of the rigid-lid model and these results are encouraging. The rigid-lid model is also being applied to near-field study. Preliminary results for a simple case have been obtained and execution of more realistic cases has been initiated. The development of a free-surface model also been initiated. The governing equations have been formulated and the computer programs have been written

    Oscillations in two-component two-phase flow Final report, volume I

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    Stability of oscillations in air and water two component two-phase flo

    Feasibility of remote sensing for detecting thermal pollution. Part 1: Feasibility study. Part 2: Implementation plan

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    A feasibility study for the development of a three-dimensional generalized, predictive, analytical model involving remote sensing, in-situ measurements, and an active system to remotely measure turbidity is presented. An implementation plan for the development of the three-dimensional model and for the application of remote sensing of temperature and turbidity measurements is outlined

    Boling flow instability semiannual status report

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    Boiling flow instabilities - inlet pressure drop versus overall density ratio relationship

    Flow oscillations in forced convection boiling Final report, volume II

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    Stability of Freon-11 and water flow oscillations in forced convection boilin

    Thermal conductance of two dimensional eccentric constrictions Interim report

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    Thermal conductance analysis on heat flow through two dimensional eccentric constriction

    Hydrogen Production By Solar Beam

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    Various methods of water-splitting with use of solar energy are reviewed and compared to each other. Direct thermal method has the highest efficiency, but the difficulty is the heat-resisting materials. Thermochemical method is promising if the corrosion-resisting materials are found. Electrolytic method is traditional, but the hybrid system combined with thermochemical and/or photochemical reactions are valuable and believed to be actualizing in the earist stage. Photolysis and biochemical methods are most environmental, but they are of low efficiency at present stage. Actually working system of so-called Yokohama Mark5 is introduced, too

    Environmental Impact of Hydrogen Technologies

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