28 research outputs found

    Notkuehlung von chemischen Reaktoren durch Einspeisung von Kuehlfluessigkeiten Abschlussbericht

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    Experimental and theoretical safety engineering studies have been carried out for the direct cooling of exothermic runaway reaction systems by free liquid jet mixing. In a laboratory reactor and in a pilot plant the parameters governing the discontinous jet mixing behaviour have been studied, and different measures of mixing quality have been defined. For a given mixing quality-mixing time function the medium mixture temperature can be calculated by a worst case analysis, and from the corresponding pressure course the latest possible feeding moment can be determined. A sensitivity analysis on the basis of the developed safety strategy using the reaction of ethylene oxide with water as an example illustrates the influence of process parameters on the efficiency of the emergency cooling. (WEN)Available from TIB Hannover: F95B1075+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

    Notkuehlung chemischer Reaktoren durch Direkteinspeisung von nichtverdampfenden Fluessigkeiten Abschlussbericht

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    SIGLEAvailable from TIB Hannover: F98B2047+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

    Druckentlastung in Systemen mit hoeherviskosen Fluessigkeiten Abschlussbericht

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    SIGLEAvailable from TIB Hannover: F96B1438+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

    Einfluss der Waermespeicherfaehigkeit auf den Energieverbrauch ganzer Gebaeude Vorstudie

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    SIGLETIB: AC 8468+MF / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

    Druckentlastung in Systemen mit hoeherviskosen Fluessigkeiten Abschlussbericht

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    The purpose of the research project was to study pressure relief at the dome sid e of vessels in gas releasing and evaporating systems in the upper viscosity range. The viscosity of a liquid exerts an influence on fluid dynamics in the vessel and pressure relief system. Despite the pervasive use of high-range viscous liquids in chemical processes this parameter has hardly been examined until now. The results of the research project are expected to facilitate the design of reliable pressure relief systems for high-range viscous systems. (orig./HS)Ziel des durchgefuehrten Forschungsvorhabens ist die Untersuchung der behaelterdomseitigen Druckentlastung gasentloesender und siedender Systeme mit hoeherviskoser Fluessigkeitsphase. Die Fluessigkeitsviskositaet wirkt sich auf die Fluiddynamik im Behaelter und im Entlastungssytem aus. Obwohl in vielen chemischen Prozessen mit hoeherviskosen Fluessigkeiten umgegangen wird, ist der Einfluss dieses Parameters bislang kaum untersucht worden. Die Ergebnisse dieses Forschungsvorhabens sollen dazu dienen, Entlastungssysteme fuer Systeme mit hoeherviskosen Fluessigkeiten zuverlaessiger auslegen zu koennen. (orig./HS)Available from TIB Hannover: F93B1422+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

    Experimental study and theoretical analysis of signage legibility distances as a function of observation angle

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    Signage systems are widely used in buildings to provide information for wayfinding, thereby assisting in navigation during normal circulation of pedestrians and, more importantly, exiting information during emergencies. An important consideration in determining the effectiveness of signs is establishing the region from which the sign is visible to occupants, the so-called Visibility Catchment Area (VCA). This paper attempts to factor into the determination of the VCA of signs, the observation angle of the observer using both experimental and theoretical analysis

    Temperaturstrahlung von Gas/Feststoff-Gemischen Abschlussbericht

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    TIB: FR 1913 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman
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