Emissions Monitoring Data Acquisition and Reporting

Emissions Monitoring performed to document compliance or for process optimization is an important function. Accurate understanding and reporting of emissions has a direct effect on a company's bottom line. Dynamic exchange of data values and data quality between the emissions monitoring and the process monitoring systems is necessary. Today's CEMS analyzers include advanced diagnostic and operational information that can be digitally communicated to the control system where it can be used to manage emissions, minimize system downtime, and maximize profits.

The digital data acquisition systems (DAS) pioneered by DR DAS in its Envidas Ultimate data acquisition and control software support this dynamic exchange process. Analyzer data and diagnostics are available to process control and data historian systems via built in OPC and Modbus servers as well as ODBC connections. Process data can be acquired by Envidas Ultimate via OPC and Modbus clients.

The Envidas Ultimate software supports CEMS system operations and maintenance, calibrations and data reduction meeting 40 CFR Part 60 and Part 75 data reduction requirements. It easily exchanges data with independent audit systems. And to keep compliance and maintenance personnel fully informed of system status alerts, are transmitted to any smart device and data is accessible via an embedded web interface.

A reliable emissions data acquisition system must not lose data. For the Envidas Ultimate the hardware platform is typically and industrial CPU with redundant hot swap drives for local data storage of years of data. Every minute the collected data can be copied to a separate database located on a data management and reporting system located at the same facility, on corporate servers or virtual servers on the DR DAS Cloud. To support compliance reporting DR DAS offers the SiteView Data Analysis and Reporting Software (DARS). Configurable to support any calculation or statistic based on the data collected from Ultimate fully meets Part 60 data reduction and reporting requirements. Data substitution is also supported. Users can build their own dynamic HMI interfaces for data display.

A typical CEMS implementation will use an instance of Envidas Ultimate to control and acquire data from one or more CEMS. Ultimate fully supports all functions the facility staff has for operations and maintenance of the CEMS. The SiteView software then connects to the Ultimate system's SQL server database to move raw data to the SiteView database and then perform all needed data analysis, calculations, editing and reporting functions. When the SiteView DARS function is centrally hosted on the DR DAS Cloud or corporate infrastructure the Ultimate system can push out the data every minute eliminating, IT concerns with routine remote access to systems inside the facility firewall.

Key features of an emissions monitoring system:

  • accurate and relevant data structures, including calibration
  • understandably organized archival data storage
  • data collection and transmission with federal compliance compatibility
  • built-in redundancy (backup capabilities) for system operational reliability
  • flexibility in regard to local network structure
  • open design for accommodation of industrial systems/devices