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        COMBINED EXPERIMENTAL AND MODELING METHODOLOGY FOR INTAKE LINE EVALUATION IN TURBOCHARGED DIESEL ENGINES

        A. J. TORREGROSA,J. GALINDO,C. GUARDIOLA,O. VARNIER 한국자동차공학회 2011 International journal of automotive technology Vol.12 No.3

        This paper presents a methodology for diesel engine intake line analysis that combines specific element tests and modeling. The purpose of this methodology is to determine the impact of intake lines, or newly designed intake elements, on the volumetric efficiency of internal combustion engines while avoiding expensive on-engine tests. For this research, the intake system is divided into several elements which are individually characterized using flow and impulse test rigs. Next, individual systems are modeled using a one-dimensional code. Finally, these component models are coordinated to provide an evaluation of the volumetric efficiency. Intake lines coming from two turbocharged diesel engines are used to illustrate the method. The model is validated by comparing the model results with the actual system performance evaluated in engine test cells. Discussions of the feasibility of the technique and on the impact of element model inaccuracies on the overall system model are provided.

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