Modelling and simulation of gas solid beds

Energy sector focusses to be able to meet all the requirements of sustainable national development of energy resources and efficient utilization of its diverse sources. Waste-to-energy technologies consist of various methods for extracting energy from waste materials. These methods include thermo-chemical processes such as combustion, gasification, and pyrolysis. These thermo chemical processes are highly endothermic in nature and have high energy consumption.  Fluidised bed exchangers play an important role in the “clean wastes technology” because of its high thermal efficiency, better scalability, better temperature control and high heat transfer surface area. The current project work focusses on understanding the impact of different tube configurations (size and numbers) on the fluidisation behaviour, along with heat transfer mechanisms. Computational fluid dynamics (CFD) modelling-based approach will be used to evaluate the hydrodynamics of the above system.  The results from this study, will be used to develop and establish correlations between tube size, shape, gas flow rates, and particle heat transfer mechanisms.

PhD Thesis underway by Shivani Agnihotri.