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Show / _________ (11)' r'^U. /.... V ( x_y (10)- M = k { D ; ID, The relation of Figure 7 was plotted by the newly defined lm in Figure 9. It is clear that the normalization by equation (10)' is validated from this result. The coefficient of equation (10)' was k=0.34 and m=3.08. 6. CONCLUSION Numerical simulation was conducted for the simplified model incinerator to evaluate the mixing performance. In the range of jet mixing region, the unmixedness defined as variance of the jet tracer concentration across the incinerator can be represented by the correlation equation. The equation including the effect of density provides general relationship for multi cross jet mixing having four nozzles. REFERENCES 1. Chang. K. R. and Sangmin. C. (1997). Design consideration for cross jet air mixing municipal solid waste incinerators'. Int. J. Energy Res., 21. 695-706 2. Chang. K. R. and Sangmin, C. (1996). '3-dimentional simulation of air mixing in the M S W incinerators.', Combust. Sci. and Tech., Vol. 119, pp. 155-170 3. Sroka, L. M. and Forney, L. J. (1989). Fluid mixing with a pipeline tee: theory and experiment.', AIChE Journal, Vol.35. No.3 406-414 4. Monclova, L. A. and Forney, L. J. (1995). Numerical simulation of a pipeline tee mixer, Ind. Eng. Chem. Res.. 34, 1488-1493 5. Takeya, R., Nakamura, T.. Yamada, Y., Sameshima, R., Aso, T. and Yamada. Y.. (1997). 'Natural gas reburning for the reduction of hazardous emissins from M SW incinerators', Fourth International Conference on Technologies and Combustion for Clean Environment. Vol.1, pp.5.2. |
