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Showing 1 to 13 of 13 for “"Ignition Energy"”.
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The Effects of Increased Ignition Energy on Cold Start Hydrocarbon Emissions
A study on the effects of increased ignition energy on cold start hydrocarbon emissions was conducted. The tests were conducted on a single cylinder ASTM-CFR engine. The engine was outfitted with EFI, exhaust analyzers, and temperature probes. The engine was also modified to produce cold start …
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NO<sub>x</sub> reduction for natural gas engines with increased ignition energy and plasma jet ignitors
… specific fuel consumption were calculated. The energy for the ignitors was provided by a variable high energy ignition system, and each ignitor was supplied with 0.00, 0.08, 0.32, 0.72 and 1.28 Joules of energy in addition to that provided by the standard ignition coil. To differentiate between …
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Quenching of particle-gas combustible mixtures using the electric particulate suspension (EPS) method
… using this concept.</p> <p>The range of ignition tests with EPS was significantly broadened to richer powder mixtures in microgravity. The nominal aluminum concentrations were corrected to the actual suspension aluminum concentrations using the excess field intensity concept. Some …
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Numerical investigation of turbulent combustion regimes on localized forced ignition using stratified combustible mixture
Localized forced ignition of turbulent stratified mixtures has been numerically analyzed based on three- dimensional Direct Numerical Simulations (DNS) for different values of Karlovitz number (Ka) corresponding to different turbulent combustion regimes. The initial values of turbulent fluctuations …
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Biomassa para geração de energia: eucalipto, cana-energia e bagaço de cana-de-açúcar
… residue (bagasse) that is used for electric energy production. In order to evaluate the potential the biomass of sugarcane-energy in power generation were analyzed four plant samples: cane-energy bagasse, sugarcane bagasse, cane-energy straw and eucalyptus, checking behaviors endothermic, …
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Reducing emissions of a large bore two stroke cycle engine using a natural gas and hydrogen mixture
… of fuel and air. Hydrogen also has very low ignition energy, which translates into easier combustion. This paper presents test results of using hydrogen as a fuel additive for a large bore, two stroke cycle, single cylinder, natural gas fueled Ajax engine in a test laboratory. The engine was …
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Ignition mechanism in nanocomposites thermites
… several recent efforts aimed at understanding ignition mechanisms of nanocomposite reactive materials. Although significant progress has been made, ignition mechanisms remain elusive. At the same time, a robust ignition model is required to incorporate these materials in practical energetic …
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Study of the heating and ignition of metal powder by electrostatic discharge
… the processes that lead to ESD stimulated ignition events in metal powders. Several metals were studied: Mg, Al, and Ti. A commercially available ESD test device was adapted for the present experiments. The ESD current and voltage were measured using inductance coils; the data were used to …
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Custom engineered nanomaterials for energetics and energy applications
… of nanomaterials used for several energetics and energy applications are addressed. The main challenge of this effort is to design and prepare nanomaterials which have significant improvements associated with combustion dynamics, reaction rates, sensitivity, biocidal effectiveness, moisture …
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Modeling of Alpha Partcle Transport in Tokamak Fusion Plasma
Made available in DSpace on 2017-07-06T18:48:18Z (GMT). No. of bitstreams: 3 Guo_Junpeng_MS.pdf: 25987715 bytes, checksum: 296996a70c4c4d6579f08b182a176d17 (MD5) Guo_Junpeng_MS_ABS.pdf: 522085 bytes, checksum: f7bdaa354105284ed4536628d79a8858 (MD5) license.txt: 4813 bytes, checksum: …
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Evaluation of hot surface ignition device performance with high-pressure kerosene fuel sprays
… feasible propulsion systems, compression ignition (CI) engines present many advantages for light-duty vehicle operation. In particular, CI engines remain an optimal choice for unmanned aerial vehicles (UAVs) designed to operate at moderate flight speeds. However, one of the primary …