Thermodynamic modeling of crude oil preheating furnace

In this paper، a thermodynamic modeling approach is presented for characterizing the behaviors of a crude oil preheat furnace. Convection sections and radiant section are modeled and a simple model for combustion is given، where only a single pass is considered for modeling. Thermal equations are proposed based on mass and energy balance، thermodynamic، heat transfer and also based on semi-empirical relation for the crude oil thermo-physical behaviors. The parameters are defined based on geometrical information، empirical relations and experimental data from real furnace performances. Capability of the developed models in predicting the output oil temperature is validated by a comparison between the obtained results from simulation experiments and the data taken from the real system responses.