Results 211 to 220 of about 5,510 (257)

Experimental investigations of the minimum ignition energy and the minimum ignition temperature of inert and combustible dust cloud mixtures

Journal of Hazardous Materials, 2016
The risks associated with dust explosions still exist in industries that either process or handle combustible dust. This explosion risk could be prevented or mitigated by applying the principle of inherent safety (moderation). This is achieved by adding an inert material to a highly combustible material in order to decrease the ignition sensitivity of ...
, Dieter Gabel, Emmanuel Kwasi Addai
exaly   +3 more sources

On the minimum ignition energy (MIE) for propane/air

Journal of Hazardous Materials, 2010
A copy of the standard ASTM spark generator for determination of MIEs of gases and vapours was built and measurements to determine MIE of propane/air at normal atmospheric conditions were performed. However, the ASTM standard does not prescribe any statistical procedure for deriving MIE values from primary test data.
R K, Eckhoff, M, Ngo, W, Olsen
exaly   +3 more sources

Minimum ignition energy for laser spark ignition

Proceedings of the Combustion Institute, 2005
Abstract Combustion ignition by electrical sparks and nonresonant laser sparks is preceded by breakdown, electron heating, relaxation of internal plasma energy, shock wave generation and propagation, and subsonic flows. Measurements and model calculations of these processes (which occur over times of 10 −12 –10 −1  s) in laser sparks show that the ...
exaly   +2 more sources

Minimum ignition energy of mixtures of combustible dusts

Journal of Loss Prevention in the Process Industries, 2015
Abstract Most industrial powder processes handle mixtures of various flammable powders. Consequently, hazard evaluation leads to a reduction of the disaster damage that arises from dust explosions. Determining the minimum ignition energy (MIE) of flammable mixtures is critical for identifying possibility of accidental hazard in industry.
Sepideh Hosseinzadeh, Filip Verplaetsen   +1 more
exaly   +2 more sources

Minimum ignition energies

Fire Technology, 1969
In this, the final part of a two-part report, the authors take a look at the electrical energy required to ignite certain solids in air and in oxygen both at 1 atmosphere and at hyperbaric pressures.
E. L. Litchfield, T. A. Kubala
openaire   +1 more source

Dependence of Minimum Ignition Energy on Ignition Parameters

Combustion Science and Technology, 1990
Abstract Using two mathematical models (one allowing for pressure variations, and the other assuming the pressure to be uniform), the minimum ignition energies of a stoichiometric methane-air mixture are calculated. The effect of the initial pressure wave generated by the spark on minimum ignition energy is studied by comparing the results of the two ...
ABDELKADER FRENDI, MERWIN SIBULKIN
openaire   +1 more source

Calculation of minimum ignition energy of premixed gases

Journal of Hazardous Materials, 2003
The minimum ignition energy of premixed gases has been calculated by using two theoretical expressions and compared with the experimental data. One expression considers the amount of energy that the minimal flame should have, and the other the heat loss from the surface of the minimal flamelet.
Shigeo, Kondo, Akifumi, Takahashi, Kazuaki, Tokuhashi   +2 more
openaire   +2 more sources

Minimum ignition energy of nylon fibres

Journal of Loss Prevention in the Process Industries, 2008
Abstract The aim of this paper is to provide new experimental data on the minimum ignition energy (MIE) of clouds of fibres dispersed in the air. Nylon fibres from an Italian flock manufacturer (diameter between 10 and 27.4 μm, length between 600 and 1800 μm) were collected and tested in a modified Hartmann tube in order to measure the MIE.
MARMO, LUCA, CAVALLERO D.
openaire   +1 more source

Requirements for a minimum ignition energy standard

Process Safety Progress, 2003
AbstractFires and explosions are serious hazards in the process industries. Mitigation methods, such as suppression and venting, can be expensive. Ideally, the best option would be to avoid fire or explosion, which may be accomplished by either removing the explosible fuel/oxidant mixture, or the ignition source.One of the most overlooked and ...
C. James Dahn, Ashok G. Dastidar
openaire   +1 more source

Ignition Probability and Absolute Minimum Ignition Energy in Fuel Sprays

Combustion Science and Technology, 1992
Abstract Ignition in a one dimensional spray by a short duration source is modeled numerically. The probabilistic nature of spray ignition is discussed using a deterministic approach. The ignition source is modeled by a hot gas region of a defined thickness simulating a pilot flame or a low temperature spark source.
S. D. WEHE, N. ASHGRIZ
openaire   +1 more source