Analysis of the Method for Furnace Thermal Calculation with Radiation Intensity Attenuation

AbstractBased on the network method for radiant heat transfer, a radiant space resistance ke R /4F1 was proposed, the radiant heat transfer network diagrams which subjects to the radiation attenuation was given in this paper, this method is helpful to accurately analyze the zero-dimensional radiant heat transfer. Simulation results show that, due to the radiant space resistance kR /4F, the total thermal resistance between the flame and the water wall surface is degraded, radiation attenuation from the flame center to water wall surface should not be ignored. It is also shown that,when the radiation attenuation is involved, the furnace outlet flue gas temperature utilizing the furnace ɛf syn blackness is more accurate than the Soviet Union 1973 calculation standard