Course Content (Syllabus)
Introduction, main pollutant categories, sources, impacts, formation of primary and secondary particles, pollution control and techniques.
Particle dynamics, sizes, equivalent diameter stokes, aerodynamic, mobility. Motion in a fluid under different Kn numbers, particle drag, Cunningham correction, motion under a force field (gravitational, electrostatic), terminal velocity.
Statistical size distributions, normal, log-normal, bimodal, mean value, median value, standard deviation, variation, calculations with field data. First semester project.
Particle emission control
Emission control technologies: inertial collectors, centrifugal separators, electrostatic precipitators, filters, water scrubbers. Operation principles, types, industrial applications, sizes. Efficiency calculations, size and pressured drop of cyclones, bag filters and electrostatic precipitators. Calculating size and pressure drop of cyclones, bag filters, electrostatic precipitators. Impact of particle chemistry on efficiency. Second semester project.
Gaseous pollutants emission control
Absorption: Thermodynamics, Henry’s law, Raoult’s law, mass transfer rate. Absorption columns, types, technologies, characteristics, bed materials, absorbents and absorbates. Calculation of column height based on number of transfer units, minimum diameter for flooding, pressure drop.
Adsorption: Thermodynamics, Langmuire isotherms, rate of adsorption/desorption. Adsorbers, fixed bed, fluidized bed systems, adsorbent and adsorbates, adsorbing zones, calculation of size and pressure drop.
NOX emission control: combustion control, exhaust gas recirculation, catalytic converters, light-off temperature, SCR technology.
Third semester project.