Pod Technologies: Update: 02/2005

Turbine Emissions Analysis Tool Software

As part of the Combustion Turbine Initiative, US EPA Clean Air Markets Division (CAMD) developed a Turbine Emissions Analysis Tool to view and evaluate quarterly Part 75 combustion turbine NOx emissions data in terms of the 40 CFR Part 60, Subpart GG NSPS limits and State permit limits expressed as ppmv NOx with an O2 correction, lb/mmBtu or lbs/hr.

The software provides an easy-to-use tool 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 NOx 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 NOx 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.
• Stores the EDR evaluation and input parameters.

2/22/2005

Part 75 Emissions Monitoring Policy Manual

US EPA Clean Air Markets Division created a new and revised policy page to supplement the Part 75 Emissions Monitoring Policy Manual. Policy questions and answers posted at this location will periodically be incorporated into the searchable and printable policy manual.

2/03/2005