Results 261 to 270 of about 1,020,999 (311)

Computing Optimal Heat Release Rates in Combustion Engines

SAE International Journal of Engines, 2015
<div class="section abstract"><div class="htmlview paragraph">The combustion process has a high impact on the engine efficiency, and in the search for efficient engines it is of interest to study the combustion. Optimization and optimal control theory is used to compute the most efficient combustion profiles for single zone model with heat ...
Lars Eriksson, Martin Sivertsson
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Rate of heat release of wood products

Fire Safety Journal, 1991
The importance of energy release rate in a fire is illustrated. Two ways are identified to calculate rate of heat release in compartments fires from wood products: (1) use of detailed mathematical models of wood pyrolysis and combustion, and (2) use of experimental benchscale rate of heat release data.
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Heat release rate calculation in oxygen consumption calorimetry

Applied Thermal Engineering, 2011
Heat release rates of burning combustibles in bench-scale, medium-scale and large-scale experiments are now commonly measured by the oxygen consumption method. As the equations commonly used in the literature might not be appropriate for some conditions, a general equation including mole fractions of six components on nitrogen, oxygen, carbon dioxide ...
W.K. Chow, S.S. Han
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Heat Release Rates

2016
Calculations of fire behavior in buildings are not possible unless the heat release rate of the fire is known. This chapter on heat release rates provides both theoretical and empirical information. The chapter is organized so that theory and basic effects are considered first, then a compendium of product data is provided, which is arranged in ...
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Heat Release Rate of Building Materials

1972
Equipment and procedures for determining rate of heat release versus time for building materials and furnishings are being developed. The object is to obtain data which can be used in the design of rooms and their furnishings that will be safe from catastrophic fires.
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Time delay correction for heat release rate data

Fire Technology, 1978
A numerical scheme is presented to correct heat release rate measurements made with the Ohio State University rate of heat release apparatus for the effects of inherent time delays in the measurement system.
D. D. Evans, L. H. Breden
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Specimen heat fluxes for bench‐scale heat release rate testing

Fire and Materials, 1995
AbstractWhen 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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Inversion for Fire Heat Release Rate Using Transient Heat Flux Data

Volume 1: Aerospace Heat Transfer; Computational Heat Transfer; Education; Environmental Heat Transfer; Fire and Combustion Systems; Gas Turbine Heat Transfer; Heat Transfer in Electronic Equipment; Heat Transfer in Energy Systems, 2017
The heat-release rate (HRR) of a burning item is key to understanding the thermal effects of a fire on its surroundings. It is, perhaps, the most important variable used to characterize a burning fuel packet and is defined as the rate of energy released by the fire. HRR is typically determined using a gas measurement calorimetry method.
Andrew Kurzawski, Ofodike A. Ezekoye
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Heat flux measurements in the OSU rate of heat release apparatus

Fire Safety Journal, 2002
Thermal capacitance (slug) calorimeters were used to measure radiant and flame heat fluxes and the overall heat transfer coefficient at the sample surface in the Ohio State University (OSU) Rate of Heat Release Apparatus specified in FAR 25.853(a-1). The copper plate calorimeters gave radiant heat flux readings which were within 2% of a NIST calibrated,
Robert Filipczak, Richard E. Lyon
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Burning rate of solid wood measured in a heat release rate calorimeter

Fire and Materials, 1992
AbstractBurning rate is a key factor in modeling fire growth and fire endurance of wood structures. This study investigated the burning rate of selected wood materials as determined by heat release, mass, loss and charring rates. Thick samples of redwood, southern pine, red oak and basswood were tested in a heat release rate calorimeter.
Hao C. Tran, Robert H. White
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