축열연소시스템에서의 NOx 저감연구

목차

1. INTRODUCTION

2. NOx FORMATION CHARACTERISTICS IN HIGH TEMPERATURE AIR COMBUSTION

3. NOx REDUCTION MEASURES IN REGENERATIVE COMBUSTION

4. CONCLUDING REMARKS

5. REFERENCES

본문내용

ion-based burners. The key in NOx reduction is thought to be the one which adequately applies the principles to the relatively small hardware, the burner. Some projects for the reduction of NOx emission in regenerative combustion systems based on the above ideas are under way in the authors', laboratory, and the results will be reported in due course.
4. CONCLUDING REMARKS
The NOx emission problem is a major drawback of the regenerative combustion systems to be applied to industries widely. The conventional low NOx measures are estimated insufficient to meet the environmental standards, which requires newer concepts to reduce the NOx emission. The diluted air combustion currently under development is thought to be very promising. It is expected that the combination of low NOx principles with the air dilution concept could achieve the high thermal efficiency and low NOx emission simultaneously. Special concerns are required to the developers and the users to materialize low NOx regenerative burners in the near future.
5. REFERENCES
1) Suzuki, T., Nishimura, M., Nakanishi, R. and Kitamura, R. : Pacific Rim Int'l
Conf. on Environmental Control of Combustion Processes, Maui, Hawaii,
Paper No. 9F(1994)
2) Guo, H., Ju, Y., Maruta, K., Niioka, T. and Sato, J. : The First Asia-Pacific
Conf. on Combustion, Osaka, Japan, p464(1997)
3) Cernansky, N.P. and Sawyer, R.F. : 15th Symp.(Int'l) on combustion,
P1039(1975)
4) Lee, Y.K., Park, H.S. and Cho, K.W. : RIST Report, 8A-027(1988)
5) Lee, Y.K. : RIST Report, 96-P-10-26(1997)
6) A. Catalogues of burner manufacturers (Tokyo Gas Co., NFK, Chugairo,...)
B. Katsuki, M. and Ebisui, K. : The First Asia-Pacific Conf. on Combustion, Osaka, Japan, p294(1997)
Fig. 1 Effect of air temperature on adiabatic flame temperature
Fig. 2 Variation of oxygen concentrations with temperature
Fig. 3 NO production with the temperature variation of combustion chamber
Fig. 4 Schematic diagram of the experimental single-staged regenerative burner
Fig. 5 Variation of NOx emission with air preheat
Fig. 6 Schematic diagram of an air-staged burner
Fig. 7 Schematic diagram of a fuel-staged burner
Fig. 8 Conceptual diagram of a self-recirculation burner

키워드

축열연소시스템,   NOx저감연구