Fired Heater Simulation,Modelling and Optimization

Abstract

Mahmoud Adam Hassan Salih, Taj Alasfia M Brakat, Ahmed Abd Alazeem Mohammed

In this study a dynamic model Simulation was carried out using ASPEN HYSY for industrial refinery fired heater, it was found that Increasing the number of the tube rows in convection bank from 2 to 3 allows us to recover approximately 5% of the overall efficiency, the duty furnace has increased from 65.9MW to 68.1MW and the fuel flow has increased from 5597kg/h to 5807kg/h moreover Adding more rows has a reverse return as we start to notice increase on the flue gas temperature. Furthermore, sensitivity analysis was conducted with HYSYS to determine one of the most important parameters that affect the performance of the heater based on the data generated from the simulation. MATLAB code was generated for efficiency calculation and for parameter manipulation. well-stirred model was used for mathematical model calculations and for optimization of furnace operation, the models were validated with ASPEN Exchanger Design and Rating

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