Computation Modelling for Fine Particle Flow in Horizontal Slurry Pipelines

Abstract

The coal based thermal power plant in India faces the problem of dumping of coal ash. The coal ash produced by thermal plant is transported to dumping site through slurry pipeline. The flow of fine particles at higher flow velocity in slurry pipeline is a matter of curiosity. The transportation of coal ash slurry at higher flow velocity leads to high pressure drop and requires large pumping power which ultimately affects the economy of transportation. In this study, Computational modeling using ANSYS FLUENT 17 is done for flow of Bi modal slurry of Silica sand and Fly Ash (90:10) in horizontal pipeline at flow velocity 1.78 m/s and 2.67 m/s for solid concentration 8.77% by volume. The modeling outcomes are validated with the experimental results. It is observed that the fine particles of Fly Ash in Coarser Silica sand uniformly distribute the particles and reduce the sedimentation effect. The modeling results fairly satisfy the experimental outcomes from pilot plant test loop.

Keywords: bi-modal slurry, CFD modelling, fine particles, flow velocity, pressure drop

Cite this Article

Kanwar Pal Singh, Arvind Kumar, Deo Raj Kaushal. Computation Modelling for Fine Particle Flow in Horizontal Slurry Pipelines. Research & Reviews: Journal of Physics. 2019; 8(1): 1–6p.