Example of piloted ignition
WebJul 22, 2024 · The ignition difficulty, in terms of the minimum heat flux, increases from smoldering ignition to piloted flaming ignition and then to flaming autoignition. The minimum heat flux, ignition temperature, and peak burning flux for flaming autoignition all increase with the sample thickness, while insensitive to the sample diameter.
Example of piloted ignition
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WebIn this work, the effect of seven different sample orientations from 0° to 90° on pilot and non-pilot ignition of PMMA (poly(methyl methacrylate)) exposed to radiation has been … WebSubstituting the piloted ignition temperature instead of the self-ignition temperature allows an estimate to be made of the time to piloted ignition. The calculator below computes time to non-piloted ignition or melting of the 20 fabrics as a function of heat flux. ... For example, Figure 1 shows that it takes approximately 5cal/cm2/sec heat ...
WebSep 1, 2024 · In this work, the piloted ignition of cylindrical wood rods with different diameters (3.2 ~15.9 mm) are conducted under the irradiation up to 50 kW/m2. Three … WebApr 1, 2024 · Dripping ignition of paper with the drip size of 4.6 mg and frequency of 1 Hz (a) failed ignition by six drips (Video S1) and (b) ignition by seven drips of 0.18-mm cardstock paper and the drip ...
WebSep 25, 2024 · Reference values for the auto and pilot ignition temperatures of various fuels are shown in Table 1.1. ... A sample of fuel is exposed to constant heat flux, and the time until ignition is recorded (Valette and Moro 1990). Alternatively, ignitability is expressed as the number of successful ignitions of a given fuel sample subject to a … WebThe physical phenomenon of piloted ignition of a material is described. A number of mathematical models of this phenomenon are presented in order of decreasing …
WebApr 15, 2024 · 4.1.2 Piloted Ignition. Piloted ignition is widely applied in practical scramjets in which utilizing spark ignition only is unable to achieve reliable ignition, for example when the fuel is kerosene. Piloted ignition refers to establishing initial combustion with the help of pilot flame which is formed by igniting chemically active fuels, such ...
Websample orientation on piloted ignition and flame spread onwood (Spearpoint and Quintiere 2001). MATERIALS AND METHODS. The three kinds of wood species: beech, oak and pine used in this study are shown in table 1. The dimensions of the samples were 100 x 100 mm. The thickness of the test specimens was 10 mm. Table 1. Description of the test ... fox sports networks dishWebJul 1, 2015 · In this work, the effect of seven different sample orientations from 0° to 90° on pilot and non-pilot ignition of PMMA (poly(methyl methacrylate)) exposed to radiation has been studied with ... fox sports networks on playstation vueWebsamples was studied and the corresponding piloted ignition tests were made on smaller samples of the same wood. In the vertical sample mode, lateral flame spread and piloted ignition tests were conducted in a radiant panel test apparatus. The results for the two types of wood were qualitatively similar, thus data for only mahogany are presented ... fox sports network schedule tvWebThe most commonly used criteria for piloted ignition are discussed. Correlations used in piloted ignition studies from the past 40–50 years are summarized. Many investigators have been successful in correlating piloted ignition data of wood using a simplified thermal model in combination with a critical surface temperature criterion. black widow in marvelWebpiloted ignition. [ ¦pīl·əd·əd ig′nish·ən] (engineering) The accidental initiation of combustion by means of contact of gaseous material with an external high-energy source, such as a … fox sports networks tv showsWebPiloted ignition Often combustion is initiated in a mixture of fuel and oxidizer by a localized source of energy. This source might be an electric arc (or spark) (moving charged particles in a fluid or a plasma) or a small … fox sports networks tv serviceWebIn this work, the piloted ignition of cylindrical wood rods with different diameters (3.2 ~15.9 mm) are conducted under the irradiation up to 50 kW/m2. Three fuel groups are tested: (I) single vertical rod, (II) single horizontal rod, and (III) horizontal rod bed attached to the ground. ... Figure 5 shows the examples of the piloted ignition ... fox sports networks wikipedia