Calculation of Radiant Section Temperatures in Fired Process Heaters

Hassan Al-Haj Ibrahim^1, and M. Mourhaf Al-Qassimi¹

¹Department of Chemical Engineering, Al-Baath University, Homs, Syria

Cite this paper:
Hassan Al-Haj Ibrahim and M. Mourhaf Al-Qassimi. Calculation of Radiant Section Temperatures in Fired Process Heaters. Chemical Engineering and Science. 2013; 1(4):55-61. doi: 10.12691/ces-1-4-2

Abstract

Flame and effective gas temperatures are key variables that need to be accurately determined before analysis of heat transfer in the radiant section of fired heaters can be meaningfully undertaken. To facilitate the calculation of these temperatures, appropriate equations were derived using two Computer Matlab programmes specially written for the purpose. A third programme was also written for the solution of the derived equations using the Newton-Raphson method. The whole calculation procedure was illustrated by an example worked out for an actual process heater used in a crude oil topping unit.

Keywords:
effective gas temperature flame temperature radiation section fired heater tubular heater

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