Influence of varying timing angle on performance of an SI engine: An experimental and numerical study

Kakaee, A. H.; Zareei, J.

doi:10.22061/jcarme.2013.51

Document Type : Research Paper

Authors

A. H. Kakaee ¹
J. Zareei ²

¹ Department of Automotive Engineering, Iran University of Science and Technology, Iran

² Engineering Center for Technical Drawing, Sharif University of Technology, Iran

https://doi.org/10.22061/jcarme.2013.51

Abstract

Engine performance depends on two main factors of engine speed and ignition time. Ignition timing can affect engine life, fuel economy and engine power. In this paper, to study engine performance of Peugeot 206 TU3A with comparison ratio of 10.5:1 and displacement of 1361CC in MATLAB software, a two-zone burned/unburned model with the fuel burning rate described by aWiebe function was used for modeling in-cylinder combustion. For studying this issue, thermodynamic models such as Woshni, Isentropic, etc. were used. Then, the experiments were carried out to validate the calculated data. The objective of the present work was to examine effect of ignition timing on the performance of an SI engine. For achieving this goal, at the speed of 3400 rpm, ignition timing was changed in the range of 41 degrees before the top dead centre to 10 degrees after TDC. By changing the ignition timing, the results of some characteristics such as power, torque, indicatory pressure, exhaust emission and efficiency were obtained and compared. The results demonstrated that optimal power and torque and the maximum efficiency were achieved at 31 degrees before the top dead centre and engine performance was improved by changing timing angle. It was also indicated that the maximum thermal efficiency could be accomplished while peak pressure occurred between 5 and 15 degrees of ATDC. The amounts of O₂, CO₂ and CO were almost constant but HC increased with increase of ignition timing.

Keywords

20.1001.1.22287922.2013.2.2.4.9

Main Subjects

Thermodynamics and Cumbustion

References

[1] M. Gölcu, Y. Sekmen and M. Sahir Salman “Artificial neural-network based modeling of variable valve-timing in a spark-ignition engine”, Applied Energy., Vol. 81, pp. 187-197, (2005).

[2] S. H. Chan and J. Zhu, “Modeling of engine in-cylinder thermodynamics under high values of ignition retard,” International Journal of Thermal Sciences., Vol. 40, No. 1, pp. 94-103, (2001).

[3] S. Soylu and J. Van Gerpen, “Development of empirically based burning rate sub-models for a natural gas engine,” Energy Conversion and Management, Vol. 45, No. 4, pp. 467-481, (2004).

[4] P. Willard and W., Engineering Fundamentals of the Internal Combustion Engine, 2^ed ed., Prentice Hall., (2003).

[5] R. Colin Ferguson and T. Kirkpatrik Allan, Internal Combustion Engines Applied Thermosciences, John Wiley & Sons, Ins, (2001).

[6] C. D. Rakopoulos, “Inﬂuence of ambient temperature and humidity on the performance and emissions of nitric oxide and smoke of high speed Diesel engines in the Athens/Greece region”, Energy Convers Manage, Vol. 31, pp. 447-458, (1991).

[7] D. A. Kouremenos, C. D. Rakopoulos and D. T. Hountalas. “Computer simulation with experimental validation of the exhaust nitric oxide and soot emissions in divided chamber Diesel engines”, In Proceedings of the ASME-WA meeting ., Vol. 10, No. 1. San Francisco, CA: AES;. pp. 15-28, (1989).

[8] H. Hiroyasu, T. Kadota and M. Arai, “Development and Use of a Spray Combustion Modeling to Predict Diesel Engine Efficiency and Pollutant Emissions: Part 2 Computational Procedure and Parametric Study”, Bulletin of JSME, Vol. 26, No.214, pp. 576-583, (1983).

[9] G. H. Abd Alla, H. A Soliman, O. A. Badr and M. F. Abd Rabbo “Effect of injection timing o the performance of a dual fuel engine”, Journal of Energy conversion and management, Vol. 43, pp. 269- 277, (2002).

[10] Y. Zhenzhong, W. Jianqin, F. Zhuoyi and L. Jinding “An investigation of optimum control of ignition timing and injection system in an in-cylinder injection type hydrogen fuelled engine”, International Journal of Hydrogen Energy, Vol. 27, pp. 213-217, (2002).

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Journal of Computational & Applied Research in Mechanical Engineering (JCARME)

Influence of varying timing angle on performance of an SI engine: An experimental and numerical study

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Volume 2, Issue 2 - Serial Number 2
June 2013
Pages 33-43

Influence of varying timing angle on performance of an SI engine: An experimental and numerical study

References

References

Send comment about this article

Volume 2, Issue 2 - Serial Number 2June 2013Pages 33-43

Volume 2, Issue 2 - Serial Number 2
June 2013
Pages 33-43