ESTIMATING THE MATHEMATICAL MODELS OF IGNITION DELAY PERIOD FOR A SMALL DIRECT INJECTION DIESEL ENGINE

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CHEGINI GH.; GHOBADIAN B.

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Journal: INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN) Year:2007 | Volume:18 | Issue:3 (SUPPLEMENT OF MECHANIC AND ELECTRICAL ENGINEERING) Page(s): 65-72

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Title

ESTIMATING THE MATHEMATICAL MODELS OF IGNITION DELAY PERIOD FOR A SMALL DIRECT INJECTION DIESEL ENGINE

Author(s)

CHEGINI GH. | GHOBADIAN B. | Issue Writer Certificate

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Abstract

The duration of ignition delay plays an important role in performance, efficiency and the succeeding ignition period of diesel engine. Determining the duration of this period is mostly one of the problems in controlling combustion and engine design. The tests performed under full factorial design of experiments using a small direct injection diesel engine with operating variables; engine speed in 5 levels, engine load torque in 4 levels and fuel injection timing in 5 levels. In this study engine combustion parameters such as; peak cylinder pressure, maximum rate of cylinder pressure rise, maximum acceleration of cylinder pressure, peak rate of heat release, internal cylinder temperature and static and dynamic ignition delay were measured. The most effective parameters on ignition delay were found to be cylinder internal temperature, engine speed and peak rate of heat release, while peak cylinder pressure, maximum rate of cylinder pressure rise, maximum acceleration of cylinder pressure and engine load torque did not reveal any significant effect. Single variable regression analysis indicated that cylinder internal temperature, engine speed, peak rate of heat release and fuel injection timing correlate most with ignition delay. In this research work mathematical models single and multivariable for static and dynamic ignition delay with operating parameters of cylinder internal temperature, engine" speed and peak rate of heat release were estimated. The best model was static ignition delay having a coefficient correlation of (r =0.90) and maximum error of 1.32 ms. Statistical analysis indicated that the model is fully linear and parameters play an effective role individually. This model is extremely a new and its seems that the models presented by the other research hers so far do not predict the ignition delay period as accurate as this model for small direct injection diesel engines.

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APA: Copy

CHEGINI, GH., & GHOBADIAN, B.. (2007). ESTIMATING THE MATHEMATICAL MODELS OF IGNITION DELAY PERIOD FOR A SMALL DIRECT INJECTION DIESEL ENGINE. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), 18(3 (SUPPLEMENT OF MECHANIC AND ELECTRICAL ENGINEERING)), 65-72. SID. https://sid.ir/paper/65643/en

Vancouver: Copy

CHEGINI GH., GHOBADIAN B.. ESTIMATING THE MATHEMATICAL MODELS OF IGNITION DELAY PERIOD FOR A SMALL DIRECT INJECTION DIESEL ENGINE. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)[Internet]. 2007;18(3 (SUPPLEMENT OF MECHANIC AND ELECTRICAL ENGINEERING)):65-72. Available from: https://sid.ir/paper/65643/en

IEEE: Copy

GH. CHEGINI, and B. GHOBADIAN, “ESTIMATING THE MATHEMATICAL MODELS OF IGNITION DELAY PERIOD FOR A SMALL DIRECT INJECTION DIESEL ENGINE,” INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), vol. 18, no. 3 (SUPPLEMENT OF MECHANIC AND ELECTRICAL ENGINEERING), pp. 65–72, 2007, [Online]. Available: https://sid.ir/paper/65643/en

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