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http://dx.doi.org/10.3795/KSME-B.2010.34.11.957

Modeling of Damage Caused to Injectors Used in Pulverized-Coal-Oxygen-Combustion Furnace  

Gwak, Min-Cheol (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Kwon, Ki-Woong (POSCO R&D Center)
Lee, Sang-Ho (POSCO R&D Center)
Yoh, Jai-Ick (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.11, 2010 , pp. 957-964 More about this Journal
Abstract
The deflagration-to-detonation transition (DDT) causes a strong pressure wave that can adversely affect surrounding structures. The pressure generated by multiple detonative pulses is strong enough to cause metal surface erosion and chipping of the edges of bulk structures. In this study, we investigate the damage caused by the DDT phenomenon and perform hydrocode simulations to evaluate the structural damage caused to a metallic pulverized-coal injector used in a pulverized-coal-oxygen combustion furnace. The experimental conditions are selected in order to accurately model the damage caused to metal injectors that are exposed to multiple DDT pulses.
Keywords
Oxy-Fuel Combustion; DDT; Detonation; Hydrocode;
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