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BURNER DESIGN CRITERIA FOR NOX CONTROL FROM LOW-BTU GAS COMBUSTION: VOLUME II. ELEVATED FUEL TEMPERATURE
Citation:
Shoffstall, D. AND R. Waibel. BURNER DESIGN CRITERIA FOR NOX CONTROL FROM LOW-BTU GAS COMBUSTION: VOLUME II. ELEVATED FUEL TEMPERATURE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-77/094B.
Description:
The report gives results of a program to provide quantitative data on combustion emissions from high-temperature low-Btu gas. It complements a recently completed EPA project that evaluated emissions resulting from the burning of ambient-temperature low-Btu gas. The experimental results were gathered from a pilot-scale furnace fired with a movable-vane boiler burner at a heat input of 0.66 MW (2.25 million Btu/hr). The gases tested in this program--Winkler oxygen, Koppers-Totzek oxygen, and Wellman-Galusha air--ranged from 5.8 MJ/cu m (156 Btu/cu ft) to 9.9 MJ/cu m (266 Btu/cu ft). Measurements were made of NO emissions, temperatures within the flame, and flame emissivity. A mathematical model was used to predict the efficiencies of the furnace with the various fuels; the model agreed well with the experimental measurements. The NO emissions of the gases tested were ordered by the adiabatic flame temperature.