7Tsumura To shikazu, Okazaki Hirofumi,Dernjatin Pauli,et al. Reducing the minimum load and NOx emissions for lignite fired boiler by applying a stable flame concept [J]. Applied Energy, 2003,74(3/4) :415-424.
8Boysan F,Swithenbank J. A fundamental mathematical modeling approach to cyclone design [J ].Trans IChemE, 1982,60(4):222-230.