A nonlinear dynamic model is developed in this study to simulate the overall performance of a naturally aspirated, single cylinder, four-stroke, direct injection diesel engine under cold start and fully warmed-up conditions. The model considers the filling and emptying processes of the cylinder, blowby, intake, and exhaust manifolds. A single zone combustion model is implemented and the heat transfer in the cylinder, intake, and exhaust manifolds are accounted for. Moreover, the derivations include the dynamics of the crank-slider mechanism and employ an empirical model to estimate the instantaneous frictional losses in different engine components. The formulation is coded in modular form whereby each module, which represents a single process in the engine, is introduced as a single block in an overall Simulink engine model. The numerical accuracy of the Simulink model is verified by comparing its results to those generated by integrating the engine formulation using IMSL stiff integration routines. The engine model is validated by the close match between the predicted and measured cylinder gas pressure and engine instantaneous speed under motoring, steady-state, and transient cold start operating conditions.
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January 2001
Technical Papers
Simulation of a Single Cylinder Diesel Engine Under Cold Start Conditions Using Simulink
H.-Q. Liu, Graduate Research Assistant,
H.-Q. Liu, Graduate Research Assistant
Mechanical Engineering Department, Wayne State University, Detroit, MI 48202
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N. G. Chalhoub, Associate Professor,
N. G. Chalhoub, Associate Professor
Mechanical Engineering Department, Wayne State University, Detroit, MI 48202
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N. Henein, Professor
N. Henein, Professor
Mechanical Engineering Department, Wayne State University, Detroit, MI 48202
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H.-Q. Liu, Graduate Research Assistant
Mechanical Engineering Department, Wayne State University, Detroit, MI 48202
N. G. Chalhoub, Associate Professor
Mechanical Engineering Department, Wayne State University, Detroit, MI 48202
N. Henein, Professor
Mechanical Engineering Department, Wayne State University, Detroit, MI 48202
Contributed by the Internal Combustion Engine Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division February 19, 1997; final revision received by the ASME Headquarters February 23, 2000. Technical Editor: D. Assanis.
J. Eng. Gas Turbines Power. Jan 2001, 123(1): 117-124 (8 pages)
Published Online: February 23, 2000
Article history
Received:
February 19, 1997
Revised:
February 23, 2000
Citation
Liu, H., Chalhoub, N. G., and Henein, N. (February 23, 2000). "Simulation of a Single Cylinder Diesel Engine Under Cold Start Conditions Using Simulink ." ASME. J. Eng. Gas Turbines Power. January 2001; 123(1): 117–124. https://doi.org/10.1115/1.1290148
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