12 research outputs found

    Raman anemometry, a method for component-selective velocity measurements of particles in a flow

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    An anemometer for the measurement of the velocity of particles of different substances in a flow, separate and apart from that of the flow itself, is described. The substances are distinguished by Raman scattering. The velocity is obtained by relating the autocorrelated scattering signal to the known laser beam profile

    A Raman anemometer for component-selective velocity measurements of particles in a flow

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    An anemometer for the measurement of the velocity of particles of different components in a flow, separate and apart from that of the flow itself, is described. As a component-selective mechanism Raman scattering is used. The velocity is measured by relating the autocorrelated scattering signal to the known laser beam profile

    Clean and efficient energy conversion processes (CECON-project) : final report

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    The objectives of the work programme reported are the development and testing of two optimised energy conversion processes, both consisting of a radiant surface gas burner and a ceramic heat exchanger. The first sub-objective of the programme is related to industrial heating, drying and curing processes requiring low and medium heat fluxes. The second sub-objective concerned the development of a compact low cost heat exchanger capable of achieving high levels of heat recovery (up to 60%) which could be easily installed on industrial processes. The objective of the project was the development of a gas powered radiant surface burner with internal recuperation, that has a high efficiency and low emission. This clean and efficient energy conversion process is a combination of two units: a radiant surface gas burner (first sub-objective) and a ceramic heat exchanger (second sub-objective) to preheat the combustion air by the flue gas.

    Study of the thermohydraulics of CO2 discharge from a high pressure reservoir

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    An experimental test set up has been constructed to carry out controlled CO2 release experiments from a high pressure vessel. The test set up is made up of a 500l stainless steel vessel where CO2 can be introduced up to high pressures and where controlled releases can be conducted. The work objective is to get experimental data that help to understand the thermo-hydraulic behavior of CO2 when discharged from a pressurized vessel and to further improve and validate existing and newly developed release and dispersion models. The aim is to get better insight into the fluid behavior in the vessel as well as in the discharged jet, and to understand the relation between the thermodynamic regime inside the high pressure medium and the mass release rate and jet zone characteristics during the release process.In this experimental work, the impact of varying the release orifice diameter and the initial vessel pressure on the CO2 discharge will be examined and analyzed, and the different thermodynamic regimes inside and outside the high pressure medium will be described and interpreted. © 2013 Elsevier Ltd

    Supersonic Phenomena

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    ოთარ დადიანი

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    ოთარ დადიანი - მუჹნი დადიანის ძმა, 1924 წელს áƒ«áƒ›áƒáƒĄáƒ—áƒáƒœ ერთად მონაწილეობდა აჯანყებაჹ
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