96/06317 Advanced technologies for coal quality evaluation for pulverized coal combustion. Prediction of NOx emissions

• Publisher: Elsevier Science
• Year: 1996
• Weight: 197 KB
• Volume: 37
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(97)83714-9

✦ Synopsis

Boiler ash deposits generated during combustion of coal, biomass, black liquor, and energetic materials affect both the net plant efficiency and operating strategy of essentially all boilers. Such deposits decrease convective and radiative heat exchange with boiler heat transfer surfaces. In many cases, even a small amount of ash on a surface decreases local heat transfer rates by factors of three or more. The report relates the chemical and microstructural properties of ash deposits to their physical and transport properties.