Consequence analysis for adoption of PRIME: An advanced building downwash model
- ENSR Corp., Acton, MA (United States)
PRIME (Plume Rise Model Enhancements) is an advanced module that includes formulations involving plume rise and flow around building obstacles. This long-neglected, but important area of modeling applications can often lead to the highest short-term ground-level concentrations. The new PRIME model accounts for the stack/building geometry much better than the existing Industrial Source Complex (ISC) model algorithm in that it internally accounts for the plume rise and trajectory around building obstacles. It is a technique (as installed in the current ISCST3 model) that is being proposed for adoption as a preferred modeling procedure by the US EPA at the 7th EPA Modeling Conference, to be held in 1998. One element of reviewing new model submittals is an analysis of the consequence of replacing the existing model (in this case, the ISCST3 algorithm) with the new model, ISC-PRIME. The analysis described in this paper consists of a series of typical emission scenarios that cover the spectrum of expected applications. A year of meteorological data has been applied with the existing and proposed techniques to obtain a set of predicted concentrations for the two models on a grid of receptors for each scenario modeled. The results of this analysis are reviewed to determine the expected regulatory impact of the adoption of the new ISC-PRIME model.
- OSTI ID:
- 362019
- Report Number(s):
- CONF-980632--
- Country of Publication:
- United States
- Language:
- English
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