§ 76.2 Definitions.
All terms used in this part shall have the meaning set forth in the Act, in § 72.2 of this chapter, and in this section as follows:
Alternative contemporaneous annual emission limitation means the maximum allowable NOX emission rate (on a lb/mmBtu, annual average basis) assigned to an individual unit in a NOX emissions averaging plan pursuant to § 76.10.
Alternative technology means a control technology for reducing NOX emissions that is outside the scope of the definition of low NOX burner technology. Alternative technology does not include overfire air as applied to wall-fired boilers or separated overfire air as applied to tangentially fired boilers.
Approved clean coal technology demonstration project means a project using funds appropriated under the Department of Energy's “Clean Coal Technology Demonstration Program,” up to a total amount of $2,500,000,000 for commercial demonstration of clean coal technology, or similar projects funded through appropriations for the Environmental Protection Agency. The Federal contribution for a qualifying project shall be at least 20 percent of the total cost of the demonstration project.
Arch-fired boiler means a dry bottom boiler with circular burners, or coal and air pipes, oriented downward and mounted on waterwalls that are at an angle significantly different from the horizontal axis and the vertical axis. This definition shall include only the following units: Holtwood unit 17, Hunlock unit 6, and Sunbury units 1A, 1B, 2A, and 2B. This definition shall exclude dry bottom turbo fired boilers.
Cell burner boiler means a wall-fired boiler that utilizes two or three circular burners combined into a single vertically oriented assembly that results in a compact, intense flame. Any low NOX retrofit of a cell burner boiler that reuses the existing cell burner, close-coupled wall opening configuration would not change the designation of the unit as a cell burner boiler.