Size an afterburner and specify the flow rate of methane needed to control 8000 cfm of air from a paint-drying oven. The oven exhaust gases are available at 250 degrees F. Assume that the design temperature and residence time have been established as 1300 degrees F and 0.6 seconds, respectively. The type of burner used in the process requires outside air at a mass ratio of 12:1 (air to fuel gas).