Alternatives in Air Emission Modeling for Characterization of Processes and Process Changes

摘要

As Facilities prepare for the requirements of Title V of the Clean Air Act and as personnel exposure limits (PELs) under OSHA continue to decrease, effective means of modeling process air emissions become increasingly important. To date the focus of air modeling has been to establish the effects of process emissions after they leave the plant or on the effect of exposures to employees over various time intervals assuming particular concentrations. Most current techniques are not readily useable to assess emissions of potential process changes, primariliy because of the general need to supply empirical concentration data for the various modeling techniques.. This paper will examine the strengths and weaknesses of various modeling techniques used for estimating process emissions Building on this information a model will be developed to predict process emissions which does not rely on empirical data and would thus be of use in process design.