Experimental Characterization of Helium Dispersion in a -Scale Two-Car Residential Garage (NIST TN 1694) - Softcover

Nist

 
9781496168696: Experimental Characterization of Helium Dispersion in a -Scale Two-Car Residential Garage (NIST TN 1694)
Softcover
ISBN 10: 1496168690 ISBN 13: 9781496168696
Verlag: CreateSpace Independent Publishing Platform, 2014

Inhaltsangabe

A series of experiments are described in which helium was released at constant rates into a 1.5 m 1.5 m 0.75 m enclosure designed as a -scale model of a two car garage. The purpose was to provide reference data sets for testing and validating computational fluid dynamics (CFD) models and to experimentally characterize the effects of a number of variables on the mixing behavior within an enclosure and the exchange of helium with the surroundings. Helium was used as a surrogate for hydrogen, and the total volume released was scaled as the amount that could be released by a typical hydrogen-fueled automobile with a full fuel tank. Temporal profiles of helium were measured at seven vertical locations within the enclosure during and following one hour and four hour releases. Idealized vents in one wall sized to provide air exchange rates typical of actual garages were used. The effects of vent size, number, and location were investigated using three different vent combinations. The dependence on leak location was considered by releasing helium from three different points within the enclosure. A number of tabulated quantitative measures are used to characterize the experiments. The complete experimental measurement results for each condition are available on the internet as described in Appendix A (http://www.nist.gov/el/fire_protection/buildings/upload/HeliumDispersionDataSets.zip.)

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Verlag
CreateSpace Independent Publishing Platform
Erscheinungsdatum
2014
Sprache
Englisch
ISBN 10 
1496168690
ISBN 13 
9781496168696
Einband
Taschenbuch
Anzahl der Seiten
90
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