Determination of Ammonia Evaporation Rates for MOPORI Project Model

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The paper is aimed to provide key input for an analysis forming part of industrial process risk assessment and management in a selected enterprise. The analysis is a feature of the Complex model for industrial process risk assessment and management developed in the APVV 0043-10 project. As part of the evaluation of model application, a risk assessment is undertaken in selected enterprises. This risk assessment also involves modelling of a hazardous substance (ammonia water) spillage. To be able to predict the amount of ammonia released and its distribution in time, the evaporation rate must be known. This paper describes laboratory-scale experimental determination of the evaporation rate of ammonia from ammonia water provided by the enterprise for which the risk assessment is being undertaken. The results of the experiment show the dependence of the evaporation rate on the ambient temperature and solution concentration and may be applied directly in a toxic cloud movement model.

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458-462

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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