Journal of Chemical Engineering & Process Technology
Open Access

CFD validation for forces on immersed tubes in a fluidized bed

International Conference on Chemical Engineering

September 12-14, 2016 Phoenix, USA

Sushil Kumar

BHEL R&D, India

Posters & Accepted Abstracts: J Chem Eng Process Technol

Abstract :

Fluidized beds are widely used chemical processing industries and heat transfer operations for various applications. These beds are loaded with large no of tube bundles in a thermal power plant to have large surface area of heat transfer. The steam is allowed to pass though tubes placed inside and is heated by the fluidized bed material in the fluidization chamber. This work deals with estimation of the force imparted by the bed material on the tube assemblies by computational fluid dynamics (CFD) technique. The gas-solid flow has been simulated by means of a multi-fluid Eulerian model incorporating the kinetic theory for solid particles. The pulsating forces were compared to experimental data performed by Kennedy et. al. A good approximation was observed in force prediction of different tubes. However a minor difference was observed in interval duration of the peak forces. These force patterns observed will help structural designers to design tubes and joints for fluctuating forces inside the bed.

Biography :

Email: sushilkumar@bhelrnd.co.in