High Thermal Release (HTR) Burners
Bloom HTR Burners are similar to the baffle burner. In the small size range, the HTR burner uses a metallic nozzle rather than a ceramic one. The air jets have a high radial velocity component which imparts a high spin to the air. The port block has a dished area. The combination of the high spin and the block configuration produces a flame with a flat profile. The burner is shown schematically in Figure 2. The HTR Burner is inherently low NOx because large amounts of furnace gases are re-circulated into the flame area. Bloom has developed a lower NOx, version of the HTR with no loss of performance.