Tangentially fired boiler
Tangentially fired boiler means a boiler that has coal and air nozzles mounted in each corner of the furnace where the vertical furnace walls meet. Both pulverized coal and air are directed from the furnace corners along a line tangential to a circle lying in a horizontal plane of the furnace.
Source
40 CFR § 76.2
Scoping language
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: