Results 121 to 130 of about 15,258 (170)

Effects of energy deposition schedule on minimum ignition energy in spark ignition of methane/air mixtures

Proceedings of the Combustion Institute, 2002
A two-dimensional numerical analysis with elementary reactions including ion-molecule reactions has been performed to investigate the effect of energy deposition schedule on the minimum ignition energy in the composite spark ignition of methane/air mixtures.
Takao Yuasa, Shinichi Kadota, Mitsuhiro Tsue, Michikata Kono, Hiroshi Nomura, Yasushige Ujiie   +5 more
openaire   +1 more source

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
openaire   +2 more sources

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

Determining Minimum Ignition Energies and Quenching Distances of Difficult-To-Ignite Compounds

Journal of Testing and Evaluation, 2003
Abstract Difficulties experienced using ASTM Method E 582-88 for determination of minimum ignition energies of compounds more difficult to ignite than simple hydrocarbons are described along with remedies for overcoming those difficulties.
N Dean Smith, WA Mitchell, MW Tufts
openaire   +1 more source

Laser ignition of explosives: Effects of laser wavelength on the threshold ignition energy

Journal of Energetic Materials, 1994
Abstract A method, based on a tunable 180 W CW CO2-laser (9–11 μm), for measuring the effect of laser wavelength, and hence optical absorbance coefficient, on the threshold ignition energy of explosives, has been developed. To determine how the laser beam interacts with the high explosives, a theory for the connection between the ignition energy and ...
Henric Östmark, Magnus Carlson, Katrin Ekvall   +2 more
openaire   +1 more source

Investigation of Ignition Energy with Visualization on a Spark Ignited Engine powered by CNG

SAE Technical Paper Series, 2014
<div class="section abstract"><div class="htmlview paragraph">The need for using alternative fuel sources continues to grow as industry looks towards enhancing energy security and lowering emissions levels. In order to capture the potential of these megatrends, this study focuses on the relationship between ignition energy, thermal ...
Nick Polcyn, Ming-Chia Lai, Po-I Lee
openaire   +1 more source

Ignition Characteristics of Micro‐Energy Semiconductor Bridges with Different Ignition Compositions

Propellants, Explosives, Pyrotechnics, 2015
AbstractExperimental research was carried out under the stimulation of 10 μF tantalum capacitor discharge, to obtain the ignition characteristics of micro‐energy semiconductor bridges (SCB) with different ignition compositions. Meanwhile, the critical ignition voltages of different pyrotechnics were tested by the Neyer‐D optimal sensitivity test method.
Nan Yan, Bingliang Bao, Fei Zheng, Chaozhen Li   +3 more
openaire   +1 more source

Laser ignition of explosives: Effects of gas pressure on the threshold ignition energy

Journal of Energetic Materials, 1990
Abstract This paper describes a method for measuring the effect of initial gas pressure and the type of gas on the threshold ignition energy of several high explosives. The method is based on a 300 W CW CO2-laser. An extensive study of these parameters for PETN and RDX is also presented.
H Östmark, R Gräns
openaire   +1 more source

The National Ignition Facility and Laser Fusion Energy

Proceedings of the International Quantum Electronics Conference and Conference on Lasers and Electro-Optics Pacific Rim 2011, 2011
This talk provides an update of the NIC on the National Ignition Facility at the Lawrence Livermore National Laboratory and the roadmap to demonstrate laser fusion as a viable source of baseload carbon-free energy.
openaire   +1 more source

Laser Ignition of an Experimental Cryogenic Reaction and Control Thruster: Ignition Energies

Journal of Propulsion and Power, 2014
An extensive experimental investigation has been conducted to assess the feasibility of implementing laser ignition in a cryogenic reaction and control system and orbital and maneuvering system thrusters. A 400 N experimental thruster, with a single-coaxial injector element, was designed for a steady-state pressure of 2 bar and was tested using two ...
openaire   +2 more sources