日本財団 図書館


7.CONCLUSION

 

The results of experiments and calculations bring about the following conclusions.

(1) The ignition timing control by the multiple sparks from a single source and/or the multi-flame ignition from dual sources can successfully be applied to the practical use. The experimental results indicate a possibility to reduce NOx emission without appreciable sacrifice of fuel economy. The cycle simulation also supports the trend.

(2) A multi-zone model for the burnt gas predicts a considerable difference in the maximum temperature distribution in the burnt space. This evidence indicates that the multi-zone model should be taken into consideration for a precise estimation of NOx emission in the cycle.

 

REFERENCES

 

[1] Nakamura,N.,et al,"Multipoint Spark Ignition for Lean Combustion",Trans. SAEJ33(1986),pp 18-23

[2] Ono,S.,"A Study on the Active Control of Early Stage Combustion in Engine Cylinder", Trans. SAEJ27-3(1996,pp 18-23

[3] Ono,S.,"A Study on the Active Control of Early Stage Combustion in Engine Cylinder" Trans. SAEJ27-3(1996,pp 18-23

[4] Ono,S.,Hirayama,Y.,and Yang,X.,"A Simulation of the Gas Engine Cycle with a Controlled Heat Release in the Combustion Chamber", The Memories of the Faculty of Engineering Kyushu University, Vol.58,No.3(1998),pp 147-161

[5] Izumi,S.,et al,"Matching of Exhaust Turbochargers to Two-cycle Diesel Engines", Proc. of the Diesel and Gas Engine Power Conference of ASME68-DGP-9(1968),pp 1-9

[6] Ishida, H.,et al,"Development of Engine Cycle Analysis for Various Kind of Fuel and Working Gas" ,Proc., of JSME920-17-B(1992),pp429-431

[7] Jante,A.,"Das Wiebe-Brengesettz,ein Forshritt in der Kreisprozesse von Verbrennungsmotoren", Kraftfarhrzeugtechnik(1960-9),pp340-346

[8] Sitkei,G,"Kraftstoffaufbereitung und Verbrennung bei Dieselmotoren",Springer Verlag(1964),pp 157

[9] Ikegami,M.,Shioji,M.,and Koike,M.,"A Stochastic Approach to Model the Combustion Process in Direct Injection Diesel Engine",Proc. Of 20th Symposium on Combustion /The Combustion Institute(1984),pp217-224

[10] Aoyagi,Y.,Matsui,Y.,Kamimoto,T, and Matsuoka,S.,Trans. JS ME,47-413(B)(1981),pp 195-204

[11] Hatakeyama,T,"Predicting Nitric Oxide Formation in Direct Injection Diesel Engine",Technical Report of Mitsubishi Heavy lndustries, 12-3(1975),pp341-351

[12] Morel,T,and Keriber, R.,"Heat Radiation in D.I.Diesel Engine",SAE paper No.860445(1986)

[13] Ishida,M.,Chen,Z.L.,Ueki,H.,and Sakaguchi,D., "Combustion Analysis by Two-Zone Model in a DI Diesel Engine", Proc. of International Symposium COMODIA(1994),pp1-6

[14] Hiroyasu,H.,Arai,M., and Nishida, K., "Development and Use of Spray Combustion Modeling to Predict Diesel Engine Efficiency and Pollutant Emissions", Trans. JSME,48-432(B)(1982),pp820-826

[15] Mizutani,Y,"Combustion Engineering"(1995),pp59-75, Morikita-shuppan

 

 

 

BACK   CONTENTS   NEXT

 






日本財団図書館は、日本財団が運営しています。

  • 日本財団 THE NIPPON FOUNDATION