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Based on the analysis of heat radiation intensity from flame, a new mathematical model ofthe tube-wall temperatmp of heated tubes is developed by taking down-fired, upright-tube cylindricalfurnace for example. The proposed mathematical model can be employed to indicate both the positionand size of the hot spot at fire-facing wall of heated tube of combustion chamber, and is characteristicof simplicity and efficiency If coupled with thermoelectric couple or infrared viewer, the presentedlocation method of combustion hot spot can offer engineers very valuable proposal to keep furnacerunning more safely The same is true for any other type of tubular furnaces.
Based on the analysis of heat radiation intensity from flame, a new mathematical model of the tube-wall temperatmp of heated tubes is developed by taking down-fired, upright-tube cylindrical furnace for example. size of the hot spot at fire-facing wall of heated tube of combustion chamber, and is characteristic of simplicity and efficiency If coupled with thermoelectric couple or infrared viewer, the presented location method of combustion hot spot can offer engineers very valuable proposal to keep furnace run more more safely The same is true for any other type of tubular furnaces.