Fugitive emissions occur when volatile materials are processed through equipment components such as fittings, seals, piping connectors, valve and other items where leaks and/or seepage may occur at connections. The EPA has published guidance for managing different approaches to calculating fugitive emissions for a chemical or petrochemical facility https://www3.epa.gov/ttnchie1/efdocs/equiplks.pdf.
In Emission Master software, fugitive emission calculations have been integrated at the process modeling level and from the fugitive components that have been defined for each major equipment component in the Equipment Database. The Fugitive Component database stores fugitive leak factors as described for standard SOCMI and/or Petroleum fittings. Additionally, fugitive factors can be entered based on sampling measurements.
Calculating fugitive emissions in Emission Master
When the fugitive option has been turned on, Emission Master will calculate fugitive emissions in addition to the normal point source emissions. The following video has been created to help illustration this feature. Fugitive calculations and reporting.
Emission Master has been expanded to calculate fugitive emissions and has been integrated as part of the normal process modeling. A new Fugitive Components database has been added for assigning components to equipment systems. When a process model is prepared in Emission Master, the associated fugitive emissions are calculated and take into account the (1) process composition, (2) time cycle and (3) fugitive components for each major equipment item in the process.