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  • 1
    Publication Date: 1974-06-01
    Print ISSN: 0017-9310
    Electronic ISSN: 1879-2189
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Elsevier
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Fire technology 34 (1998), S. 266-279 
    ISSN: 1572-8099
    Keywords: environmental effects ; emissions ; accident statistics ; smoke hazards ; particles ; PAH ; hydrocarbons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract The amount of various pollutants per year emitted into the atmosphere from fires in Sweden is estimated. The pollutants considered in detail are CO2, CO, HCN, NOx, SO2, HCl, unburned hydrocarbons, and particulate matter. The emission of N2O, aromatic hydrocarbons, dioxins, and heavy metals, is discussed qualititavely. The estimate is based on the number of fires in buildings and vehicles in Sweden a typical year. Emissions from wildfires have not been included. The results indicate that the amount of combustible material consumed by fire each year is approximately 12 kton, although it should be noted that during certain years, industrial fires may inflate this number. The emission of particulate matter and unburned hydrocarbons is approximately equivalent to that expected from the combustion of 2 Mton of solid fuel in a combustion plant, corresponding to energy production of approximately 15 TWh, which is of the same order of magnitude as that expected from heavy transport in Sweden each year. The emission of the other species studied is negligible relative to other sources. Measurements of species that have not been studied in detail (such as dioxins) under realistic conditions are necessary for determining the amount of these species emitted per year.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Fire technology 33 (1997), S. 336-355 
    ISSN: 1572-8099
    Keywords: foam concentrate ; proportioning equipment ; viscosity ; non-Newtonian ; rheology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Notes: Abstract A method to describe and measure the flow characteristics of non-Newtonian foam concentrates is presented. Comparative test with the cone and plate viscometer and flow tests in pipes show that it is possible to determine the so-called rheological constants that fit an empirical model, called the Herschel-Bulkley model, in order to define the viscosity characteristics. The correlation between pressure drop calculations based on viscosity data from cone and plate measurements and actual measured pressure drops in the pipes was very good. Flow tests through orifices showed that test results with non-Newtonian liquids differ from tests with water, especially by a lower loss coefficient. Similar flow tests through various components showed a difference between non-Newtonian liquids and water but, in this case, the loss coefficient was higher. Pressure drop calculations for practical applications based on data obtained from the cone and plate viscometer indicate the need for viscosity and flow characteristics for foam concentrates.
    Type of Medium: Electronic Resource
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