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Algorithms V software industrial air exhaust

                 

DISPER: 1 indoor air quality solutions 2 environmental science and health 3 air emission monitoring 4 environmental assessment 5 industry air pollution pollution in our atmosphere 7 vehicles air pollution 8 gas dispersion modeling 9 indoor air quality measurement 10 acid rain and air pollution 11 industrial air exhaust 12 air pollution effects 13 acid rain pollution 14 air quality monitoring 15 air pollution model

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Stability Parameter

For stable situations, the stability parameter, s, is calculated:

s=g[(dT/dz)/Ta]         (16)

As a default approximation, for stability class E (or 5) dT/dz is taken as 0.020 K/m, and for class F (or 6), dT/dz is taken as 0.035 K/m.

Stable - Crossover Between Momentum and Buoyancy

For cases with stack gas temperature greater than or equal to ambient temperature, it must be determined whether the plume rise is dominated by momentum or buoyancy. The (DT)c  is determined and solving for DT, as follows:

(DT)c=0.019582 Ts vs s1/2      (17)

If the difference between DT exceeds or equals (DT)c, plume rise is assumed to be buoyancy dominated, otherwise plume rise is assumed to be momentum dominated.

Stable - Buoyancy Rise

For situations where DT exceeds (DT)c as determined above, buoyancy is assumed to dominate. The distance xf is determined by

xf=2.0715 us s-1/2        (18)

The plume height, he, is determined by

he=hs+2.6 [Fb/(uss)]1/3         (19)

Stable - Momentum Rise

Where the stack gas temperature is less than or equal to the ambient air temperature, the assumption is made that the plume rise is dominated by momentum. Then,

he=hs+1.5[Fm/(uss1/2)]1/3       (20)

The equation for unstable-neutral momentum rise is also evaluated. The lower result of these two equations is used as the resulting plume height.

 

 

industrial air exhaust

Industrial air exhaust: With this application you will be able to import images and pictures (previously saved BMP files) to evaluate industrial pollution, air pollution from cars,  and pollution from diversal sources.