Results 271 to 280 of about 1,030,130 (311)
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Influence of grammage on heat release rate of polypropylene fabrics
Journal of Fire Sciences, 2017The flammability of nine polypropylene fabrics or sheets has been tested using cone calorimeter at various heat fluxes (25, 35, 50, and 75 kW/m2) in order to assess the relevance of this fire test for thermally thin materials. The chosen procedure uses a grid and allows maintaining a constant exposed surface during the test, except for the lightest ...
Nicolas Hernandez +2 more
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The effects of specimen edge conditions on heat release rate
Fire and Materials, 1993AbstractWhen bench‐scale specimens are tested for heat release rate, it is generally of interest that the behavior of the specimen simulate, as much as is possible, that of a real‐scale product performing in a real fire. A number of issues have been raised recently by workers trying to understand the optimal conditions of specimen preparation and ...
Vytenis Babrauskas +2 more
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Methods for predicting the rate of heat release of gas engines
MTZ worldwide, 2003Energy-efficient gas engines are used as stationary power units in block heating and power stations. The differing composition of natural gas according to the region as well as the addition of propane/butane cause great variations in the resistance to knocking.
Klaus Zeilinger, Günter Zitzler
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A simplified characterization of upholstered furniture heat release rates
Fire Safety Journal, 1986The technology for measuring uphostered furniture heat release rates was established with the development of the furniture calorimeter. Analysis of a large number of tests in the furniture calorimeter has now demonstrated that for most specimens a good approximation to the rate of heat release as a function of time may take the form of a triangle ...
Vytenis Babrauskas, W.Douglas Walton
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An Analysis of Furniture Heat Release Rates by the Nordtest
1999This report analyses the small to full-scale prediction of the combustion behaviour of a series of Nordtest furniture specimens. This prediction analysis is based on Model I from the Combustion Behaviour of Upholstered Furniture (CBUF) study. The Nordtest furniture specimens ranged from 1 to 3 seaters and used two different types of foam and fabrics ...
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The Problem of Predicting Rate of Heat Release in Diesel Engines
Proceedings of the Institution of Mechanical Engineers, Conference Proceedings, 1969Two simple models for the rate of heat release in diesel engines are described. The factors taken into account in the models are rate of entrainment of air into the fuel sprays, the rate of turbulent mixing of fuel and air within the spray, and the chemical kinetics of burning.
H. C. Grigg, M. H. Syed
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Heat-release rates accompanying the nonisothermaloxidation of organic compounds
Symposium (International) on Combustion, 1973Heat-release rates in propane oxidation have been evaluated by direct measurements ofself-heating of the reactants in a well-stirred reactor. By using a very fine thermocouple (1.25×10−3 cm diam) with suitably rapid response, the temperature excess has been followed through slow reaction and oscillatory cool flames. Nonisothermal characteristics under
J.F. Griffiths, P.G. Felton, P. Gray
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Specimen heat fluxes for bench‐scale heat release rate testing
Fire and Materials, 1995AbstractWhen a specimen is testd for its heat release rate (HRR) behaviour using a bench‐scale such as ISO 5660 or equivalent, one very important test condition is not pre‐standaridized and must be set: the heat flux to be imposed on the specimen by the heater.
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Heat Release Rates of Lumber and Wood Products
1983Heat release rates (HRRs) were determined for twelve wood products on each of three similar HRR calorimeters. Linear regression treatment of these data showed reasonable correlation among the three instruments. The data showed that HRR decreases with increasing moisture content and increases with increased external radiant flux.
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