Opposed-flow combustion of pulverized coal

✍ Scribed by Z. Hazanov; Y. Goldman; Y.M. Timnat

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 1010 KB
• Volume: 61
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(85)90158-0

✦ Synopsis

The possibility of achieving higher combustion intensity under conditions of stable burning by opposed-flow combustion is demonstrated in a series of experiments conducted in a furnace, provided for this purpose with an auxiliary combustion chamber. For this purpose measurements of temperature, pressure, gas composition, and velocity were carried out. Particle size distribution, ash, and volatile matter content were measured at the impingement point in order to determine locally the extent of the reaction and devolatilization. The results obtained regarding the burning of pulverized coal for the flow and temperature conditions actually existing in the combustion chamber were also analyzed computationally. The main advantages of the configuration investigated, in which secondary air is supplied in the final stage of the combustion process, are improved mixing of fuel and air and the ability to control the motion of the pulverized coal.