Atmospheric Dispersion Model Design Calculator

Atmospheric Dispersion Equation Formulas Calculator
Air Pollution Control - Stacks

Solving for plume rise.

Inputs:

Conversions:

effective stack height (H)	=	0		=	0	meter
physical stack height (h_physical)	=	0		=	0	meter

Solution:

plume rise (Δh)

HAS NOT BEEN CALCULATED

Other Units:

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Gaussian plume dispersion model developed by Pasquill

	plume contaminant concentration at a point in space
	plume contaminant concentration at ground level
	contaminant concentration at ground level along the plume centerline
	contaminant concentration at ground level along the plume centerline when the emission source is at ground level

wind speed at elevation from known wind speed and elevation

effective stack height

plume rise for superadiabatic conditions

plume rise for neutral stability conditions

plume rise for subadiabatic conditions

Where

C	=	downwind concentration
Q	=	pollution source emission rate
u	=	average wind speed
σ_y	=	y direction plume standard deviation
σ_z	=	z direction plume standard deviation
x	=	position in the x direction or downwind direction
y	=	position in the y direction
z	=	position in the z direction
H	=	effective stack height

References - Books:

1) P. Aarne Vesilind, J. Jeffrey Peirce and Ruth F. Weiner. 1994. Environmental Engineering. Butterworth Heinemann. 3rd ed.