- Plume rise is the height that a plume of smoke or other pollutants rises above its point of emission. The height of the plume is calculated using the Gaussian air pollutant dispersion equation, which requires the input of H, the pollutant plume's centerline height above ground level. H is the sum of Hs, the actual physical height of the pollutant plume's emission source point, plus Δ H, the plume rise due to the plume's buoyancy1. Other equations, such as the Holland stack rise equation and the Briggs equation, can also be used to calculate plume rise23.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The Gaussian air pollutant dispersion equation (discussed above) requires the input of H which is the pollutant plume's centerline height above ground level—and H is the sum of Hs (the actual physical height of the pollutant plume's emission source point) plus Δ H (the plume rise due to the plume's buoyancy).en.wikipedia.org/wiki/Atmospheric_dispersion_mod…The Holland stack rise equation is: v d / AT AH = I 1.5 + 2.68 X 10 p T s Where: AP = the rise of the plume above the stack (meters) v = stack gas velocity (m/sec) d = the inside stack diameter (meters) u = wind speed (m/sec) p = atmospheric pressure (mb) Tg = stack gas temperature (OK) AT = as in equation (1) and 2.68 X 10~3 is a constant having units of (m-1 mb~l). 14nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9100OX8…The plume rise relationships are as follows: (68) where x f = downwind distance of final plume rise (m) x* = distance at which atmospheric turbulence begins to dominate entrainment.mepas.pnnl.gov/mepas/formulations/air/4.0/4_11.ht…
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4.11 Plume Rise - PNNL
The plume rise equations used for unstable and stable atmospheric conditions are summarized below. For additional details of the plume rise formulation, the reader is referred to the detailed description of the plume rise formulations by Petersen et al. (1984).
Gaussian “Point” Source Plume Model: Pollutant concentration as a function of downwind position (x,y,z) Mass emission rate “Effective” stack height, including rise of the hot plume near the …
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Plume Rise - APSI
Various models dealing with plume rise from fires are available in the literature. For instance Manins (1985) considered plumes from fires from thermonuclear explosions (direct bomb fires, …
A comparison of plume rise algorithms to stack plume …
Plume rise parameterizations calculate the rise of pollutant plumes due to effluent buoyancy and exit momentum. Some form of these parameterizations is used by most air quality models.
SI:406 - Effective Stack Height/Plume Rise - US EPA
The general equation states that the plume rise is equal to the buoyancy flux, F, to the 1/3 power, times the downward distance, to the 2/3 power, divided by the wind speed measured …
The integral plume rise model of Schatzmann (1979) allows a numerical solution of the equations of the conservation of mass, momentum, concentration and thermal energy.
Three plume rise formulas are compared in their ability to model the final rise of hot, buoyant plumes from tall stacks. The model proposed by Briggs (1969), later modified by revisions in …
BLP/ BUOYLINE Formulation. The buoyance flux for ∗ BLP: g is gravity, L is the length ∗ of the source, − ) Wm is the width of the source, w is the vertical exit velocity of the vent, Ts is the …
Plume rise in different atmospheres: a practical scheme and some ...
Dec 1, 1994 · In routine dispersion models plume rise is generally calculated with a simple analytical plume rise formula without any information about the vertical structure of the …
One other factor that needs to be considered in practice is the plume rise (∆h). This is the path or trajectory of the plume centre-line after it leaves the source. Its course depends upon …
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