Computational study of non-reactive swirling flow in tangentially-fired configuration gasifier

This paper presents a computational study of swirling flow in a tangentially-fired air blown entrained flow Mitsubishi Heavy Industries gasifier in a non-reactive environment. Flow fields are obtained by using the Reynolds-averaged Navier Stokes turbulence model. Shear-stress transport k-omega model is used for the modelling the effect of turbulence. Variation in length of the internal recirculation zone with the swirl number for tangentially injected flow is reported. It is observed that for the MHI gasifier the length of the internal recirculation zone in a non-reactive environment increases upon increasing the swirl number at the inlet of the gasifier. (C) 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the 2nd International Conference on Advances in Mechanical Engineering and Nanotechnology.