Week 8 - Simulating Cyclone separator with Discrete Phase Modelling

From the above information, following cases can be analyzed:

CASE-1: To perform an analysis on a given cyclone separator model by varying the particle diameter from 1 μm to 5 μm and calculate the separation efficiency in each case. Discuss the results. [Use both the velocity's as 3m/sec.]

Case-1A: Particle Diameter: 5 μm, Particle & Inlet Flow Velocity: 3m/s.

Case-1B: Particle Diameter: 3 μm, Particle & Inlet Flow Velocity: 3m/s.

Case-1C: Particle Diameter: 1 μm, Particle & Inlet Flow Velocity: 3m/s.

CASE-2:To perform an analysis on a given cyclone separator model by varying the particle velocity from 1 m/sec to 5 m/sec and calculate the separation efficiency and pressure drop in each case. Discuss the results. [Use particle diameter size as 5 μm for all cases & keep flow velocity same as particle velocity]

Case-2A: Particle Diameter: 5 μm, Particle & Inlet Flow Velocity: 1m/s.

Case-2B: Particle Diameter: 5 μm, Particle & Inlet Flow Velocity: 4m/s.

Case-2C: Particle Diameter: 5 μm, Particle & Inlet Flow Velocity: 5m/s.

Few words about any four empirical models used to calculate the cyclone separator efficiency.

Cyclone Seperator: Cyclonic or particle separation is a process used to extract specifically identified particulates from a fluid stream (air, gas or liquid). This cyclone separator design forgoes filters, and instead relies on vortex separation for the operation. These applications vary depending on the fluid from which particles are removed.

• Iozai and Leith Model:

Iozia and Leith (1990) logistic model is a modified version of Barth (1956) model which is developed based on force balance. The model assumes that a particle carried by the
vortex endures the influence of two forces: a centrifugal force, Z, and a flow resistance, W. Core length, zc, and core diameter