Internal Combustion Engineering Division, Department of Mechanical Engineering, College of Engineering, Guindy, Anna University, Chennai, Tamil Nadu, India, 600 025.
* Corresponding Author
NomenclatureV
Fluid velocity (m/s)
DhHydraulic diameter (m)
AArea of collecting fields (m2)
KFace permeability (m/s)
KlossEmpirical loss coefficient
ITurbulence intensity
kTurbulence energy
ReReynolds number
PPerimeter of collecting plates (m)
Cr1Linear resistance coefficient (kg/m3 s)
Cr2Quadratic resistance coefficient (kg/m4)
Greek SymbolsρFluid density (Kg/m3)
βPorosity %
γKinematic viscosity (m2/s)
ɛRate of dissipation of turbulence energy
An attempt has been made to predict the effects of various parameters like flow patterns, velocity, pressure loss and turbulence on the performance of electrostatic precipitator (ESP) using both experimental and computational fluid dynamics (CFD) methods. The simulation of flow inside an ESP is done with the help of CFX software, using a standard k-∈ model. The experimental results indicate that, turbulence play a vital role for the inlet conditions of an ESP involving gas distribution (GD) screens. It play also indicate that, by maintaining an average uniform velocity of 0.78m/s inside the ESP, the collection efficiency can be increased and homogenous turbulence can be achieved by modifying the GD screens in an ESP. The cross over studies show that, average velocity inside the ESP is less than 2 m/s confirming to ICAC EP-7 standards even in case of failures. The results of the computational predictions are also in good agreement with experimentally observed results.
Electrostatic precipitator, Gas Distribution screens, CFD
