3Morimasa ICHIDA, Takashi ORIMOTO, Tsuyoshi TANAKA, behavior of pulverized coal ash and physical property of dripping slag under high pulverized coal injection operation[J]. ISIJ International, 2001,41(4) :325-332.
4Wei-Mon Yan, Kuan-Tzong Lee, Natual convection heat transfer in a vertical square duct with radiation effects[C].proceeding of the ASME, Heat Transfer Division ASME I ,1999.