use of computers in dispersion modelling of airpollutant

1. AIR POLLUTION DISPERSION AND MODELING USING COMPUTERS By:- KETAN WADODKAR Enroll no. 10519013 Guided by:- U.B. CHITRANSHI

3. Affects visibility and also the aesthetics

4. HOW THEY MOVE / TRANSPORT OF AIR POLLUTANT BASICS

6. BUOYANCY = PLUME RISE

8. Inversion super adiabatic sub adiabatic Dry adiabatic lapse rate = neutral DALR

9. STABILITY AFFECTS PLUME SHAPE / PLUME BEHAVIOR

11. AIR POLLUTION DISPERSION MODELING

15. Emissions Modeling Controls Economics Visualization Effects Pollutant Distributions Meteorological Fields Numerical Routines Atmospheric Chemistry Meteorological Modeling Emissions Inputs Inputs: Population Roads Land Use Industry Meteorology Inputs: Topography Observed Meteorology Solar insolation

23. GAUSSIAN DISPERSION MODEL C(x,y,z) Downwind at (x,y,z) ?  h h H z x y   h = plume rise h = stack height H = effective stack height H = h +  h

30. STACK HEIGHT AND PLUME RISE BY HOLLAND'S EQUATION

32. GAUSSIAN MODEL ACCORDING TO A SOFTWARE NAMED SCREEN3

33. COMPUTER MODEL STRUCTURE INPUT DATA: Operator experience METEROLOGY EMISSIONS RECEPTORS Model Output: Estimates of Concentrations at Receptors Model does calculations

36. STRUCTURE OF BASIC EULERIAN MODEL