Ignition chamber

R. A. Gottlieb, Mitochondria ignition chamber for apoptosis, Mol Genet Metab 68, 227-231 (1999). 

Oxygen concentration has also been found to have a pronounced effect on ignition temperature. Mason and Wheeler,78 using an electrically heated quartz tube as an ignition chamber and the dynamic flow method found that the ignition temperature of pentane in oxygen was lowered from 548° C. to 4/6° C. by increasing the pentane concentration from 1.50 per cent to 7.65 per cent. 

The chapter contains the results of theoretical and experimental investigations of control of the deflagration-to-detonation transition (DDT) processes in hydrocarbon-air gaseous mixtures relative to propulsion applications. The influence of geometrical characteristics of the ignition chambers and flow turbulization on the onset of detonation and the influence of temperature and fuel concentration in the unburned mixture are discussed. 

Acetylene was used as a source of illumination beginning in the early 1900s. In one type of acetylene lamp, water was allowed to drop on a solid chunk of calcium carbide at a controlled rate. The acetylene produced then passed into an ignition chamber, where it burned with a brilliant white light. Acetylene lamps were... 

The diesel engine takes in and compresses the air. The fuel is injected into the cylinder in atomized form at the end of the compression stroke and is vaporized in the air. Ignition begins by auto-ignition in one or several zones in the combustion chamber where the conditions of temperature, pressure and concentration combine to enable combustion to start. 

Fig. 7. Schematic drawing of a HaIs arc furnace. A, ground B, ignition electrode C, beU-shaped cathode D, insulator E, turbulence chamber F, ground ...

Direct-Flame Incinerators. In direct-flame incineration, the waste gases are heated in a fuel-fired refractory-lined chamber to the autoignition temperature where oxidation occurs with or without a visible flame. A fuel flame aids mixing and ignition. Excess oxygen is required, because incomplete oxidation produces aldehydes, organic acids, carbon monoxide, carbon soot, and other undesirable materials. 

The traveling-grate furnace requires less labor, increases the output per unit of grate area, and produces more uniform product than the WetheriU. furnaces. The traveling grate is an endless chain of cast-iron bars, driven by sprockets, which traverses a firebrick chamber. Anthracite briquettes are fed to a depth of ca 15 cm. After ignition by the previous charge, the coal briquettes are covered by 15—16.5 cm of ore/coal briquettes. The latter are dried with waste heat from the furnace. Zinc vapor evolves and bums in a combustion chamber and the spent clinker faUs into containers for removal (24,25). 

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