Grate-fired boilers are commonly used to burn biomass/wastes for heat and power production. In spite of the recent breakthrough in integration of advanced secondary air systems in grate boilers, grate-firing technology needs to be advanced for higher efficiency and lower emissions. In this paper, innovative staging of combustion air and recycled flue gas in a 13 MW waste wood-fired grate boiler is comprehensively studied based on a numerical model that has been previously validated.
View Article and Find Full Text PDFIn our study we examined the patients with extraarticular fractures in five years period: from 1984 to 1987. Most of them were treated operatively (76%). The good results highly correlated with the early timing of operation, the best results are seen in cases, which are operated urgently or in the first week after injury.
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