Double Weiber Funtion Model
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Direct Injection Diesel Engine Rate of Heat Release
Prediction using Universal Load Correction Factor in Double Wiebe Function for Performance
Simulation
2011-01-2456
Published
04/01/2012
S. Loganathan, R. Murali Manohar and R. Thamaraikannan
Aarupadai Veedu Institute of Technology
R. Dhanasekaran, A. Rameshbabu and V. Krishnamoorthy
Maamallan Institute of Technology
Copyright © 2012 SAE International doi:10.4271/2011-01-2456 ABSTRACT
A proposed modification or an innovation can be analyzed quickly using a computer simulation and cost overrun in setting up an experimental work can be minimized by the optimization of experimental parameters beforehand.
Literature data for performance prediction of direct injection diesel engine operated either with diesel fuels having property variation or with oxygenated diesel blends were found mostly confined to experimental investigations only. In modern research, computer simulation has become a powerful tool for diesel engine performance prediction as it saves time and is also economical in the analysis of modifications. In a finely tuned and warm engine, the thermodynamic models are capable of reproducing cylinder pressure and over all engine performance with acceptable accuracy over a wide range of operating conditions. In this paper, a novel approach of applying the universal load correction factor in double wiebe function model along with a linear late combustion model and the two-zone concept to model diesel combustion has the advantage of rapidly providing apparent rate of heat release, cylinder pressure, mean cylinder temperature and concentration variations also with significantly less computing resource requirement. Any
It may not be reproduced, stored in a retrieval system, distributed or transmitted, in whole or in part, in any form or by any means.
Downloaded from SAE International by Loughborough University, Friday, June 29, 2012 01:25:49 PM
Direct Injection Diesel Engine Rate of Heat Release
Prediction using Universal Load Correction Factor in Double Wiebe Function for Performance
Simulation
2011-01-2456
Published
04/01/2012
S. Loganathan, R. Murali Manohar and R. Thamaraikannan
Aarupadai Veedu Institute of Technology
R. Dhanasekaran, A. Rameshbabu and V. Krishnamoorthy
Maamallan Institute of Technology
Copyright © 2012 SAE International doi:10.4271/2011-01-2456 ABSTRACT
A proposed modification or an innovation can be analyzed quickly using a computer simulation and cost overrun in setting up an experimental work can be minimized by the optimization of experimental parameters beforehand.
Literature data for performance prediction of direct injection diesel engine operated either with diesel fuels having property variation or with oxygenated diesel blends were found mostly confined to experimental investigations only. In modern research, computer simulation has become a powerful tool for diesel engine performance prediction as it saves time and is also economical in the analysis of modifications. In a finely tuned and warm engine, the thermodynamic models are capable of reproducing cylinder pressure and over all engine performance with acceptable accuracy over a wide range of operating conditions. In this paper, a novel approach of applying the universal load correction factor in double wiebe function model along with a linear late combustion model and the two-zone concept to model diesel combustion has the advantage of rapidly providing apparent rate of heat release, cylinder pressure, mean cylinder temperature and concentration variations also with significantly less computing resource requirement. Any
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