sed do consulting firms Et leggings across the nation tempor.9/98 External Combustion Sources 1.7-1 1.7 Lignite Combustion 1.7.1 General1-5 Coal is a complex combination of organic matter and inorganic ash formed over eons from successive layers of fallen vegetation. Coals are classified by rank according to their progressive alteration in the natural metamorphosis from lignite to anthracite.COMPARISON BETWEEN THE CONVENTIONAL FLUIDIZED BED AND THE LURGI CIRCULATING FLUID BED FOR THE COMBUSTION OF COAL Criterion Conventional (bubbling) fluidized bed Circulating fluidized bed Heat exchange surface Can/so lids contacting Pressure drop Partial load Load following Bed material Combus tion e fficiency Coal crushing Excess air ratio ...Spontaneous combustion of coal is the process of self heating resulting eventually in its ignition without the application of external heat. It is caused by the oxidation of coal. If the rate of dissipation of heat is slow with respect to the evolution of heat by oxidation there willApr 24
Đọc thêm