Turbine Emissions Analysis Tool Software

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What is the Turbine Emissions Analysis Tool?

As part of the Combustion Turbine Initiative, EPA’s Clean Air Markets Division (CAMD) has developed a software tool that State and local agencies can use to view and evaluate quarterly Part 75 combustion turbine NO_x emissions data in terms of the 40 CFR Part 60, Subpart GG NSPS limits and State permit limits expressed as ppmv NO_x with an O₂ correction, lb/mmBtu or lbs/hr.

What does the Turbine Emissions Analysis Tool do?

The software provides an easy-to-use tool for State and local agencies to compare Part 75 CEMS emission data provided in the quarterly Emission Data Report (EDR) to NSPS and State permit limits:

Imports and evaluates up to two quarterly EDRs at a time for a single unit;
Supports analysis of standards expressed in parts per million (ppm), corrected to a specific percent oxygen, pound per million Btu, or pounds per hour for units measuring NO_x and O₂ on a dry basis;
Allows the user to enter various averaging times (up to 24 hours) that can apply to an individual unit and perform calculations based on that specified averaging time;
Allows the user to enter a default value for ISO corrections and an optional fuel nitrogen allowance if desired;
Supports the analysis of multiple fuel-based emission limits;
Flags hours with NO_x emissions over the NSPS or State permit limits, monitors downtime hours (based on Part 75 missing data reporting) and operating hours with data problems that prevented emission calculations;
Prints a report or exports summary and hourly analysis results in an electronic format; and
Stores the EDR evaluation and input parameters.

What type of computer is needed to operate the Turbine Emissions Analysis Tool?

The turbine software is designed to run under Windows 98, Windows 2000, Windows NT or Windows XP. The software uses Microsoft .NET, and you will need the .NET Framework installed on your computer, as well as Internet Explorer, version 5.01 or newer. The requirements for .NET and the turbine software are summarized below:

Intel Pentium-class computer, 90 Mhz or higher, with Windows 98, NT 4.0, 2000, ME or XP operating system.
At least 32 megabytes of RAM (96 megabytes or higher recommended)
Hard disk space required to install .NET: 150 MB
Hard disk space required for .NET: 110 MB
Microsoft Internet Explorer 5.01 or later
Microsoft Windows Installer 2.0 or later

What types of combustion turbines can be reviewed with the Turbine Emissions Analysis Tool?

The software can evaluate Part 75 combustion turbine units that measure NO_x or O₂ on a dry basis. The software cannot evaluate units that measure NO_x or O₂ on a wet basis, or use a CO₂ diluent monitor (the Part 75 EDR does not provide the data necessary to convert CO₂ or wet basis measurements to the dry basis of the NSPS limit). The software also cannot evaluate units that share monitoring locations (complex stacks).