Comparative Analysis Of Dust Emissions:
Isolated Stockpile Vs Two Nearby Stockpiles
Author(s)
B. Furieri, S. Russeil, J.-L. Harion, J. Santos & M. Milliez
Abstract
The estimation of dust emission of fugitive sources, suchas storage piles of
granular materials on industrial sites, is often carried out by implementing
mathematical models. The widely used USEPA model employs emission factors
which require a detailed knowledge of the fluid flow. The present work is focused
on the investigation of global emissions from oblong stockpiles. Previous studies
dealt with dust emissions quantification and fluid flow analysis concerning isolated
oblong piles. Later work indicated the importance of emissions originating from
the ground region surrounding piles whose contribution can be up to twice that
coming from the pile. In this framework the stockpile oriented 60◦ to the main
wind flow direction has presented the most elevated global dust emission rate.
This paper aims to analyse the influence of a second successive pile on global dust
emissions on industrial sites, on which there is rarely a single isolated pile. Dust
emission rates are assessed by the USEPA model and fluid flow data is predicted by
numerical simulations carried out with the open-sourceCFD code Code Saturne.
The distance between piles is also a parameter analysed in these investigations.
The following configurations have been carried out: (i) one isolated stockpile and
(ii) two parallel stockpiles with the same orientation and two different values
of gap between them. The investigation of the two successive nearby stockpiles
indicates that dust emission from the upstream stockpile is slightly increased
when the piles are more distant. On the contrary, the analysis of the downstream
stockpile shows that, as the distance increases, dust emission will be decreased.
It is also found that the isolated stockpile emits less dust than the upstream or
Keywords
dust emission quantification, USEPA model, CFD, Code_Saturne
Related Book
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