Comparison of phenomenological and fundamental modelling approaches for predicting fluidized bed reactor performance

► Phenomenological 1D and fundamental 2D modelling approaches are compared. ► A wide range of operating conditions under bubbling fluidization was investigated. ► The 1D model was found to be very sensitive to various closure laws. ► The best performing closure laws performed well against the fundamental model. ► The 1D model response to changes in particle size requires further study.