Abstract

SILVA, Adrián; BARRANDEGUY, Margarita  and  QUINTANA, Javier. RISKS MODELING TO WORKERS AND THE COMMUNITY FOR RELEASES OF PETROLEUM LIQUID GAS, USING SOFTWARE SLAB VIEW IN LOS ANGELES CITY, CHILE. Cienc Trab. [online]. 2017, vol.19, n.60, pp.183-187. ISSN 0718-2449.  http://dx.doi.org/10.4067/S0718-24492017000300183.

28.

With the SLAB VIEW software, modeling wasperformed to determine quantitatively the risks to workers and the community from acciden tal releases of liquefied petroleum gas, from sources use and storage, within the urban radius of Los Angeles (Chile). 23 sources with a severe risk category class "C" and the 3 very severe risk category class "D" identified with the APELL methodology, applied in the study by Silva et al. (2016), were modeled.

The spatial and temporal behavior of the gas leaking for tanks iden tified with capacities of 2m3, 4m3, 11m3 and 49m3 were evaluated using seasonal averages of meteorological variables considered in a five - year evaluation period. Leakage time variables were used evaluating their behavior in 1, 3 and 5 minutes in order to identify worst-case conditions. As a result it is obtained that the behavior of the cloud depends on the atmospheric stability, being the stable condition where concentrations of interest remain longer reaching greater distances and that the worst scenario for a leak is the low temperatures and the stable atmospheric conditions. As a conclusion, it can be established that in the study area, there are ponds that are potentially dangerous due to deflagration for workers and the com munity, however, exposure times do not generate hazards due to acute exposure.

Keywords : OCCUPATIONAL HAZARDS; GAS LEAKING; DENSE GASES; LPG; SLAB VIEW.

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