A New Spray Mixing Model of Quasi-Dimensional Model for Diesel Engine Working Process

In order to simplify the model of diesel engine working process in Hardware-In-the-Loop simulation system and improve its real time operating performance, a quasi-dimensional model of diesel engine working process based on a new phase divided spray mixing model was formulated and developed. The software MATLAB/Simulink was utilized to simulate the diesel engine working process. The good agreement between experimental results and calculated results indicates that the quasi-dimensional model of diesel engine working process is reliable for predicting power, fuel consumption and emissions of diesel engine. It is concluded that the quasi-dimensional model of diesel engine working process was greatly simplified and the real time operating performance of simulation system was obviously improved by using this phase divided spray mixing model.

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Numerical Study on the Quasi-Dimensional Model of Diesel Engine for Performance Optimization

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.354-355.541 ◽

2011 ◽

Vol 354-355 ◽

pp. 541-547

Author(s):

Kun Peng Qi ◽

Huo Lei Chen ◽

Wu Qiang Long ◽

Hong Gu

Keyword(s):

Diesel Engine ◽

Performance Optimization ◽

Numerical Study ◽

Engine Performance ◽

Computational Time ◽

Test Design ◽

Dimensional Model ◽

Working Process ◽

Orthogonal Test Design ◽

Average Computational Time

In this paper, a phase-divided spray mixing model is proposed and the quasi-dimensional model of diesel engine working process is developed. The software MATLAB/Simulink is utilized to build the quasi-dimensional model of diesel engine working process, and the performance for diesel engine is simulated. The simulation results agree with experimental data quite well which indicates that the simplified quasi-dimensional model has high precision for predicting diesel engine performance. By utilization of this simulation model, the average computational time for one diesel engine working process is 36 s, which presents good real time operating performance of the model. On the basis of the principle of orthogonal test design, the performance of diesel engine was optimized by use of the quasi-dimensional model.

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Simulation of quasi-dimensional model for diesel engine working process

Journal of Central South University of Technology ◽

10.1007/s11771-010-0569-2 ◽

2010 ◽

Vol 17 (4) ◽

pp. 868-872 ◽

Cited By ~ 2

Author(s):

Kun-peng Qi ◽

Li-yan Feng ◽

Xian-yin Leng ◽

Jiang-ping Tian ◽

Wu-qiang Long

Keyword(s):

Diesel Engine ◽

Dimensional Model ◽

Working Process

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Modeling a fuel injector for a two-stroke diesel engine

Combustion Engines ◽

10.19206/ce-2017-325 ◽

2017 ◽

Vol 170 (3) ◽

pp. 147-153

Author(s):

Rafał SOCHACZEWSKI ◽

Zbigniew CZYŻ ◽

Ksenia SIADKOWSKA

Keyword(s):

Diesel Engine ◽

Combustion Chamber ◽

Fuel Injection ◽

Maximum Load ◽

Fuel Injector ◽

Dimensional Model ◽

Flow Area ◽

Fuel Mass ◽

One Dimensional ◽

Injector Nozzle

This paper discusses the modeling of a fuel injector to be applied in a two-stroke diesel engine. A one-dimensional model of a diesel injector was modeled in the AVL Hydsim. The research assumption is that the combustion chamber will be supplied with one or two spray injectors with a defined number of nozzle holes. The diameter of the nozzle holes was calculated for the defined options to provide a correct fuel amount for idling and the maximum load. There was examined the fuel mass per injection and efficient flow area. The studies enabled us to optimize the injector nozzle, given the option of fuel injection into the combustion chamber to be followed.

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