Potential Applications of High Temperature Air Combustion Technology to Other Systems - High Temperature Air Combustion: From Energy Conservation to Pollution Reduction - page 358

increase of oxygen essentially makes a negligible change to the overall equivalence
ratio of the fuel/air mixture. In spite of the benefits, however, the combination of
oxygen-enriched oxidant and high temperature air results in harmful effects, such
as intense oxidation on the inside of piping walls and very high temperatures. In
addition, thermal dissociation of the gas also occurs at very high temperatures. These
issues prevent using pure oxygen as the oxidant in the high temperature air com-
bustion technology for other potential applications.

6.11 SUMMARY

Potential applications of HiTAC are envisioned to be much greater than originally
sought at the onset of the program. Specifically in the application area of thermal
destruction and energy utilization of solid wastes and low grade coals, promising
outcomes have emerged from the fundamental and related laboratory-scale studies.
During the past few years, the high temperature air combustion technology has been
demonstrated, for most part, to effectively transform solid waste to clean energy as
discussed in this chapter. Many of the applications cited here have been focused on
the potential development of this technology for specific applications. However, to
develop these applications fully, further interdisciplinary engineering work must be
done to promote the proof of concept for a specific application prior to providing
demonstration via bench-scale and pilot-scale experiments. In recent years, there
has been a growing social demand for energy saving, reduction of pollutants emis-
sion, and prevention of global warming and the recurrence of the energy problem.
In this aspect the HiTAC project has demonstrated excellent results on the enhanced
performance of many kinds of industrial furnaces and boilers within the High
Performance Industrial Furnace Development Project. In the future, it is expected
that further international efforts will continue to develop other technological appli-
cations beyond those given in this chapter.

REFERENCES

1. A. K. Gupta. Proc. of the Forum on High Performance Industrial Furnaces and Boiler

paper S2-5, pp. 66-1 to 66-18, Science Hall, Tokyo, March 8-9, 1999.

2. A. K. Gupta. J. Energy Resource Technol., ASME, 118:187-192, September 1996.

3. A. K. Gupta. Flameless Combustion Workshop: Application to Gas Turbine Engines .

ALSTOM Power Technology, Baden, Switzerland, April 2, 2001.

4. T. Kiga, R. Hanaoka, M. Nakamura, H. Kosaka, T. Iwahashi, K. Yoshikawa, M. Sakai,

K. Muramatsu, and S. Mochida. 37th AIAA Aerospace Sciences Meeting, Reno NV ,
number 0730 in 99. AIAA, January 11-14, 1999.

5. K. Yoshikawa. Proc. 2nd International Seminar on High Temperature Combustion in

Industrial Furnaces , pp. 1-22, Stockholm, Sweden, January 17-18, 2000. Jernkon-
toret- KTH.

6. A. K. Gupta. “ Incineration of Plastics ,” Polymers and the Environment . Academic

Press, New York, 2002.

7. M. Sigaki. Waste Incineration Technology . 2nd edition, Ohm Company, Ltd., 1998.