REDUCING OF TRANSIENT WARM-UP PERIOD IN AN INTERNAL COMBUSTION ENGINE BY PREHEATING OF ENGINE PARTS

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GHASEMIAN A.; JAZAYERI S.A.

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Journal: THE JOURNAL OF ENGINE RESEARCH Year:2010 | Volume:5 | Issue:17 Page(s): 15-27

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Title

REDUCING OF TRANSIENT WARM-UP PERIOD IN AN INTERNAL COMBUSTION ENGINE BY PREHEATING OF ENGINE PARTS

Author(s)

GHASEMIAN A. | JAZAYERI S.A. | Issue Writer Certificate

Keywords

WARM-UPQ2

LUMPED THERMAL CAPACITANCEQ3

COOLANTQ3

Abstract

The transient period that lasts from engine starting to achieve engine COOLANT to its performance temperature is called WARM-UP. This study tries to decrease the time of WARM-UP period in a spark ignition engine.To achieving to this goal, at first the COOLANT thermal operation should be analyzed. For that, engine divided to seven major parts. These components are piston, cylinder block, cylinder head, engine oil, cylinder block COOLANT, cylinder head COOLANT and radiator COOLANT. Because WARM-UP period is a transient period, one of the transient heat transfer analyze methods should be applied. The method that is used in this study is LUMPED THERMAL CAPACITANCE method. Using heat transfer rules including conduction and convection and ignoring radiation, the thermal equations of mentioned parts are calculated. These equations are nonlinear differential equations that can be arranged in form of a set of differential equations. Because of some complicated nonlinear terms in the differential equations, they can not be solved with analytical methods and so MATLAB software is applied to solve the differential equations set. After solving the differential equations set and finding the temperature changes of major parts, these answers should be validated. To verifying the accuracy of theoretical answers, the answers are compared whit experimental result of engine test that is carried out in IPCO (Irankhodro Powertrain Company). After assuring of the correction and accuracy of theoretical method, some solutions are introduced to reduce the WARM-UP period. The criterion of warmup period is the thermal operation of engine COOLANT. So, after applying these solutions, the temperature changes of COOLANT during WARM-UP period is calculated for each method and at the end, the advantages and deficiencies of each solution are discussed.

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APA: Copy

GHASEMIAN, A., & JAZAYERI, S.A.. (2010). REDUCING OF TRANSIENT WARM-UP PERIOD IN AN INTERNAL COMBUSTION ENGINE BY PREHEATING OF ENGINE PARTS. THE JOURNAL OF ENGINE RESEARCH, 5(17), 15-27. SID. https://sid.ir/paper/135612/en

Vancouver: Copy

GHASEMIAN A., JAZAYERI S.A.. REDUCING OF TRANSIENT WARM-UP PERIOD IN AN INTERNAL COMBUSTION ENGINE BY PREHEATING OF ENGINE PARTS. THE JOURNAL OF ENGINE RESEARCH[Internet]. 2010;5(17):15-27. Available from: https://sid.ir/paper/135612/en

IEEE: Copy

A. GHASEMIAN, and S.A. JAZAYERI, “REDUCING OF TRANSIENT WARM-UP PERIOD IN AN INTERNAL COMBUSTION ENGINE BY PREHEATING OF ENGINE PARTS,” THE JOURNAL OF ENGINE RESEARCH, vol. 5, no. 17, pp. 15–27, 2010, [Online]. Available: https://sid.ir/paper/135612/en

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