Development of a General Purpose Thermal-Hydraulic Software and its Application to Fuel Injection Systems

Kolade, Babajide; Boghosian, Michael; Reddy, P. Dwarakanadha; Gallagher, Shawn M.

doi:10.4271/2003-01-0702

Cited by 15 publications

(7 citation statements)

References 6 publications

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“…The model was implemented in a commercial simulation software named GT-Suite, in the GT-Fuel submodule. It is capable of calculating problems in different disciplines of physics, i. e. electromechanical, thermal, fluid-dynamical and mechanical simulations [25].…”

Section: Simulation Modelmentioning

confidence: 99%

A model based new method for injection rate determination

Vass

Zöldy

2021

THERM SCI

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This paper presents a detailed model of a Common Rail Diesel injector and its validation using injection rate measurement. A new method is described for injector nozzle flowrate determination using simulation and measurement tools. The injector model contains fluid dynamic, mechanic and electro-magnetic systems, describing all-important internal processes and also includes the injection rate meter model. Injection rate measurements were made using the W. Bosch method, based on recording the pressure traces in a length of fuel during injections. Comparing the results of the simulated injection rate meter, simulated injector orifice flow and injection rate measurements, the simulated and measured injection rates showed good conformity. In addition to this, the difference between nozzle flow rate and the measured flow rate is pointed out in different operating points, proving, that the results of a Bosch type injection rate measurements cannot be directly used for model validation. However, combining injector, injection rate meter simulation and measurement data, the accurate nozzle flow rate can be determined, and the model validated.

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Section: Simulation Modelmentioning

confidence: 99%

A model based new method for injection rate determination

Vass

Zöldy

2021

THERM SCI

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“…It is capable of calculating problems in different disciplines of physics, i.e. it is capable of electromechanical, thermal, fluiddynamical and mechanical simulations [24].…”

Section: Injector Modelmentioning

confidence: 99%

Detailed Model of a Common Rail Injector

Vass

Zöldy

2019

Acta Universitatis Sapientiae, Electrical and Mechanical Engineering

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This work is about the validation of a Common Rail (CR) injector model. The model describes injector internal behavior in a detailed way, validation is done using dosage measurements and needle lift traces. The model contains fluid dynamic, mechanic and electro-magnetic parts describing all important internal processes. To compare the modelling results against measurement data, three test cases were chosen on a medium duty test engine to represent a wide range of operation points. Dosage measurements were done by averaging the injected mass of 1500 injections, each measurement repeated three times. Needle displacement was measured using an injector equipped with a needle lift sensor in the same operating points. The results of the simulated injector and the measured values showed good conformity both in needle displacement and injected fuel mass, so the model can be a basis for further injector and combustion analyses.

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“…The shortening of the optimum solutions obtainment time can be achieved by the formulated of mathematical models of injection subsystems of feed system and calculation of the parameters of interest in the numerical simulation methods. Many simulations of the diesel engine fuel injection subsystem are carried out in order to find the optimum fuel injection parameters [9]. The characteristics and the finite difference method have been applied to solve the governing equations.…”

Section: State Of Knowledge In the Scope Of The Modeling Of The Fuel mentioning

confidence: 99%

Modelling of the fuel injection of medium speed marine diesel engines

Monieta

2017

Combustion Engines

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The article presents the stages of fuel injection modeling of the four-stroke marine diesel engines as a set of functional blocks the of the fuel waves flow. The elaborated model includes the values of changing pressures in the combustion chamber and the course of changes of the pressure in spaces of the injection pump, injection pipe and the injector. Linear and local losses, as well as the conditions for the functioning were taken into account in stages of the fuel flow. The influence of different values of the engine load on the pressure course of the in individual spaces of injection apparatus and in the engine cylinder during the working cycle depending on the crank angle of rotation of the crankshaft have been simulated. The mathematical relationships were selected and the structural and experimental data are used, allowing the calculation of the parameters of interest for the simulated process.

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Development of a General Purpose Thermal-Hydraulic Software and its Application to Fuel Injection Systems

Cited by 15 publications

References 6 publications

A model based new method for injection rate determination

A model based new method for injection rate determination

Detailed Model of a Common Rail Injector

Modelling of the fuel injection of medium speed marine diesel engines

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