AirWare
air quality assessment & management
Reference and User Manual
AirWare   On-line Reference Manual
  Release Level 7.0
  Revision Level beta
  Release Date 2015 03

Last modified on:   Saturday, 18-Jul-15 10:56 CEST

Point Sources

Point sources represent raised (and usually industrial) stacks and the associated boilers. There are three closely related OBJECT CLASSES:

  1. Boilers and Stacks that can be linked to an industrial plant, and can have (optional) time-series of emission data, the latter in reference to the EU Large Combustion Plant Directive (> 50 MW) ; these time series can be edrived from CEMS (continuous monitoring) or PEMS (simulation) based dynamic emissions;
  2. Small Stacks, that basically correspond to the boilers/stack class with similar list of atributes,but have a single average emission value for each pollutant substance. Depending on the sector or activity they represent, thay may also have an associated temporal pattern.
  3. Industrial plants that can combine several emission point sources (and area sources for fugitive emissions) with individual locations in a single object with a common geometry (polygon).

Like all other OBJECT CLASSES, ranking selector and associated data analysis tools are availble for the members of the CLASS.

The detailed data structure and corresponding Data Base Representation depends on the set of Descriptors that the OBJECT specific HTML TEMPLATE includes.

Please note that the list of attributes is open, and can be extended "dynamically" by the user by adding a new attribute (and corresponding Descriptor definition) to the (html format) TEMPLATE and KnowledgeBase, respectively.

Point sources or stacks/boilers (together with area sources) can optionally be grouped into

    industrial plants representing industrial installation with multiple emission points, that also hold administrative data such as street address, contact person, ISIC classification, start of operations, etc.
    Industrial plants also are the source object for permitting support tools

Generic data

All point sources are OBJECTs and have the standard OBJECT META DATA associated that include:

    Name, short description, owner, creation and last modification date; Georeference: symbolic and (type specific, reference point at the base of the stack);
    Hypertext description (with import function); Type specific: Stack height, inner diameter
    Industry classification (ISIC) Boiler type, power rating, primary fuel, average fuel consumption.
    Source specific temporal scaling factors (for month, day, hour) a TABLE of substance specific average (default) emission values;
    optional one or more Substance (or parameter) specific temporal scaling factors; optional time series of Emission values (for boilers and stacks), includes flue gas temperature and velocity), and optinal related parameters such as flue gas volume or fuel consumption, with a generic time series import function.

    Other optional attributes (open list of Descriptor-Value pairs that can be configured with the KB editor and the OBJECT TEMPLATEs). Examples are operating hours, start time and stop time of operations.

Industrial Plants:

    Name
    Location: Province
    Location: Community
    Category (symbolic)applicable terminology defined in the knowledge base
    ISIC CodeRevision 3.1
    Start of operation [year]
    Number of stacks.
    Power Rating [MW]
    Volumetric flow, sum over all boilers/stacks [Nm3/s]
    Mass flow, sum over boilers [kg/h]at NTP, normal temperature and presssure
    Emissions, sum over boilers[g/s]CO, NO, SO2, VOC
    NO/NO2 ratio, average
    GIS coordinates current MapSet projection, UTM or Lat/Long
    Link button: Contactleads to a separate address DB entry for owner/operator
    Link button: Profilepop-up window with hypertext and images
    Link button: documentsselector listing and search for text documents (PDF)
     
Boilers and Stacks:

    Name
    Stack height [m]
    Stack diameter [m]
    Exit temperature [Degree Celsius]
    Exit velocity [m/s]
    Turbine type [steam, gas, n/a, ...]
    Year of construction
    Fuel type [gas, heavy oil, ...]
    Fuel consumption [kg/year]average consumption
    Emission Data [g/s]NOx, NO,NO2, SO2, PM10, PM2.5, CO,VOC
    NO/NO2 ratio
    GIS coordinates current MapSet projection, UTM or Lat/Long
    Link button: Emission temporal pattern select or define and link a pattern
    Link button: Profilepop-up window with hypertext and images
    Link button: documentsselector listing and search for text documents (PDF)
    Optional: emission time series
     
Small Stacks:

    Name
    Province
    Community
    Category (Hotel, Block heating, Hospital, Industrial Boiler...
    ISIC Code
    Year of constructionbegin of operations
    Source size (symbolic)very small, small, medium, large,very large
    Fuel type [gas, light oil ...]
    Fuel consumption [kg/year]used for optional emission estimates
    Stack diameter [m]top value
    Exit temperature [Degree Celsius]
    Exit velocity [m/s]
    Emission Data [g/s] NOx, NO,NO2, SO2, PM10, PM2.5, CO,VOC
    NO/NO2 ratio
    GIS coordinates current MapSet projection, UTM or Lat/Long
    Link button: Contactleads to a separate address DB entry for owner/operator


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