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Show CONCLUSIONS With appropriate burner technology I NOx compliance levels as low as 30 ppm can be achieved on gas firing in most package boiler installations without sacrifice to system capacity I reliability I or efficiency. For low NOx burner technology to be considered successful by end users, it is imperative that burner operation and performance be compatible with overall system design and plant operational restraints. This can only be achieved if actual environmental conditions and operational realities are considered by the burner design team and incorporated into the final product. REFERENCES (1) Londerville, S.; SOURCES AND SOLUTIONS OF BURNER RELATED RUMBUNG PROBLEMS IN BOILERS. A.S:M.E. FACT - Vol. 10, Combustion Modeling and Burner Replacement Strategies. Book No. G00523 - 1990. (2) Facchiano, A.; USE OF COMPUTATIONAL FLUID DYNAMICS MODEUNG TO STUDY FUEL BURNOUT IN A LOW NOx RETROFIT . APPUCATION. Presented at the American Flame Research Committee 1989 Fall International Symposium, Short Hills, N.J.; September 25-27, 1989. (3) Zeldovich, Y.B., Sadovnikov, and FrankKamentski; OXIDATION OF NITROGEN IN COMBUSTION, Academy of Sciences of USSR, 1947. (4) Harker, J.H., THE CALCULATION OF THE TEMPERATURE AND COMPOSITION OF FLAME GASES, Journal of the Institute of Fu~, May 1969. (5) Facchiano, A.; APPUCATIONS OF COMPUTATIONAL FLUID DYNAMICS IN THE DESIGN OF INDUSTRIAL COMBUSTION SYSTEMS, A.S.M.E. FACT - Vol. 10, Combustion Modeling and Burner Replacement Strategies. Book No. GOO523 - 1990. 6 OPERATING NOx LEVELS FOR 2nd GENERATION OAF BURNER: JANUARY ~ - JULY 92 Figure 3 ~EN~PPW' .1 ItNW8T\J (12~) co LEVELS FOR 2nd GENERATION OAF BURNER: JANUARY 92 - JULY 92 Figure 4 50 PPW TO 100 PPU (<4~) |