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A METHOD FOR PROVIDING MORE EQUAL HEAT FLUX DISTRIBUTION ABOUT AN EXTERIOR CIRCUMFERENTIAL SURFACE REGION OF A PROCESS TUBE WITHIN A FIRED PROCESS VESSEL
A METHOD FOR PROVIDING MORE EQUAL HEAT FLUX DISTRIBUTION ABOUT AN EXTERIOR CIRCUMFERENTIAL SURFACE REGION OF A PROCESS TUBE WITHIN A FIRED PROCESS VESSEL
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机译:一种在过程容器内过程管的外部圆周表面区域上提供更多等量热流分布的方法
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摘要
Process tubes (14) of a fired process heater (12) are provided with a more equal heat flux distribution about an exterior circumferential surface region thereof. More specifically, according to the present invention, there is provided on at least one circumferential segment of the exterior circumferential surface region of the process tube (14), a coating (22) of a material having a selected thermal emissivity and/or the thermal conductivity which is different from the thermal emissivity and/or thermal conductivity of another circumferential segment of the exterior circumferential surface region of the process tube (14). In such a manner, a more equal heat flux distribution about an entirety,of the exterior circumferential surface region of the process tube (14) as compared to the heat flux distribution thereabout in the absence of the coating (22).
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