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Concentration fluctuations in gas releases by industrial accidents

Objective



The overall objective of the CONFLUX project is: to develop new models for the effects of random concentration fluctuations in hazardous gas releases.
The project deals with the near-site dispersion of dangerous (toxic, flammable) and unpleasant (malodorous) gases in the atmosphere. New models will be based on a novel extension of the classic meandering plume model by Gifford (1959) and on the availability of many high-quality field trial datasets that are, until now, unexploited in the context of model construction.

The specific objectives are:

1) to deduce statistical information from existing datasets

2) to predict fluctuations in passive and heavy-gas dispersion
3) to develop models applicable for practical risk assessment
4) to document and validate models in accordance with CEC guidelines.
Although the models will be pre-competitive, their aims and detailed predictions will be determined by consultation throughout the project with users (industry, national and international agencies). In this way, the project will prepare the basis for operational models for risk analysis and monitoring that incorporate concentration fluctuations. The project will emphasize dissemination including an international conference for both researchers and users.

The backgrounds of the two project partners are complementary. The group at Partner 1 are experts on field measurements of concentration fluctuations and the group at Partner 2 are experts on stochastic modelling of these.
This project falls squarely into Area 2.2.1.3 Industrial Safety (pp 29-31 of the Up-dated Work Programe, July 1996).

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

RISOE NATIONAL LABORATORY
Address
399,Frederiksborgvej 399
4000 Roskilde
Denmark

Participants (1)

University of Sheffield
United Kingdom
Address
Hounsfield Road
S3 7RH Sheffield