scholarly journals Influence of Compression Ratio on High Load Performance and Knock Behavior for Gasoline Port-Fuel Injection, Natural Gas Direct Injection and Blended Operation in a Spark Ignition Engine

2017 ◽  
Author(s):  
Michael Pamminger ◽  
James Sevik ◽  
Riccardo Scarcelli ◽  
Thomas Wallner ◽  
Carrie Hall
Keyword(s):  
Natural Gas ◽  
Compression Ratio ◽  
Fuel Injection ◽  
Direct Injection ◽  
Spark Ignition ◽  
High Load ◽  
Spark Ignition Engine ◽  
Port Fuel Injection

Comparison between gasoline direct injection and compressed natural gas port fuel injection under maximum load condition

Energy ◽  
2020 ◽  
Vol 197 ◽  
pp. 117173 ◽  
Author(s):  
Jeongwoo Lee ◽  
Cheolwoong Park ◽  
Jongwon Bae ◽  
Yongrae Kim ◽  
Sunyoup Lee ◽  
...  
Keyword(s):  
Natural Gas ◽  
Fuel Injection ◽  
Direct Injection ◽  
Load Condition ◽  
Maximum Load ◽  
Gasoline Direct Injection ◽  
Compressed Natural Gas ◽  
Port Fuel Injection

scholarly journals Numerical investigation of natural gas direct injection properties and mixture formation in a spark ignition engine

2014 ◽  
Vol 18 (1) ◽  
pp. 39-52
Author(s):  
Bijan Yadollahi ◽  
Masoud Boroomand
Keyword(s):  
Numerical Model ◽  
Natural Gas ◽  
Internal Combustion Engines ◽  
Gasoline Engine ◽  
Direct Injection ◽  
Spark Ignition ◽  
Computational Effort ◽  
Spark Ignition Engine ◽  
Validity Of Results ◽  
Injection Process

In this study, a numerical model has been developed in AVL FIRE software to perform investigation of Direct Natural Gas Injection into the cylinder of Spark Ignition Internal Combustion Engines. In this regard two main parts have been taken into consideration, aiming to convert an MPFI gasoline engine to direct injection NG engine. In the first part of study multi-dimensional numerical simulation of transient injection process, mixing and flow field have been performed via three different validation cases in order to assure the numerical model validity of results. Adaption of such a modeling was found to be a challenging task because of required computational effort and numerical instabilities. In all cases present results were found to have excellent agreement with experimental and numerical results from literature. In the second part, using the moving mesh capability the validated model has been applied to methane Injection into the cylinder of a Direct Injection engine. Five different piston head shapes along with two injector types have been taken into consideration in investigations. A centrally mounted injector location has been adapted to all cases. The effects of injection parameters, combustion chamber geometry, injector type and engine RPM have been studied on mixing of air-fuel inside cylinder. Based on the results, suitable geometrical configuration for a NG DI Engine has been discussed.

Influence of Injector Location on Part-Load Performance Characteristics of Natural Gas Direct-Injection in a Spark Ignition Engine

2016 ◽  
Vol 9 (4) ◽  
pp. 2262-2271 ◽  
Author(s):  
James Sevik ◽  
Michael Pamminger ◽  
Thomas Wallner ◽  
Riccardo Scarcelli ◽  
Brad Boyer ◽  
...  
Keyword(s):  
Natural Gas ◽  
Direct Injection ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Performance Characteristics ◽  
Part Load

Volumetric Efficiency Investigation with Anhydrous and Hydrous Ethanol on a Port Fuel Injection Spark Ignition Engine

2016 ◽  
Author(s):  
Wanderson Navegantes Rodrigues ◽  
Lucas Ramos Pumputis ◽  
Heder Fernandes ◽  
Igor Cordeiro Trevas ◽  
Venicio Teixeira Nascimento Neto
Keyword(s):  
Fuel Injection ◽  
Spark Ignition ◽  
Volumetric Efficiency ◽  
Spark Ignition Engine ◽  
Port Fuel Injection ◽  
Hydrous Ethanol

Performance, Efficiency and Emissions Assessment of Natural Gas Direct Injection compared to Gasoline and Natural Gas Port-Fuel Injection in an Automotive Engine

2016 ◽  
Vol 9 (2) ◽  
pp. 1130-1142 ◽  
Author(s):  
James Sevik ◽  
Michael Pamminger ◽  
Thomas Wallner ◽  
Riccardo Scarcelli ◽  
Ronald Reese ◽  
...  
Keyword(s):  
Natural Gas ◽  
Fuel Injection ◽  
Direct Injection ◽  
Automotive Engine ◽  
Port Fuel Injection

Numerical analysis of the influence of early fuel injection on charge motion in a direct injection spark ignition engine using scale-resolving simulations

2019 ◽  
Vol 21 (4) ◽  
pp. 664-682
Author(s):  
Martin Theile ◽  
Martin Reißig ◽  
Egon Hassel ◽  
Dominique Thévenin ◽  
Martin Hofer ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Flow Field ◽  
Fuel Injection ◽  
Direct Injection ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Post Processing ◽  
Charge Motion ◽  
Set Up ◽  
Direct Injection Spark Ignition

This work summarizes the numerical analysis of the effect of early fuel injection on the charge motion in a direct injection spark ignition engine concerning cyclic fluctuations of the flow field. The combination of the scale-resolving turbulence model “Scale Adaptive Simulation” and post-processing routines for vortex trajectory visualization allows for a detailed insight into the temporal resolved and cycle-dependent behavior of the charge motion. In the first part, a simplified engine set-up is presented and used as a validation case to ensure correct behavior of the turbulence model and post-processing routines. In the second part, the computational fluid dynamics model of the real engine is introduced. The application of the proposed vortex tracking algorithm is shown, and a short discussion about the transient behavior of the charge motion in this engine set-up is given. The third part describes the analysis of the influence of the fuel injection on the charge motion at different engine speeds from 1000 to 3000 r/min and variations of the intake pressure from 1 to 2 bar. Finally, the impact on different flow field properties at possible ignition timings is discussed. Changes in mean flow field quantities as well as in aerodynamic fluctuations are found as a consequence of fuel injection.

Experimental Study of the Addition of Methane in Biomass Gasification Producer Gas in an Optically Accessible Spark Ignition Engine with Port Fuel Injection

2021 ◽  
Author(s):  
Felipe Solferini de Carvalho ◽  
Alexander Peñaranda Mendoza ◽  
Leila Ribeiro dos Santos ◽  
Enrico Malheiro de Oliveira ◽  
Maycon Ferreira Silva ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fuel Injection ◽  
Biomass Gasification ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Producer Gas ◽  
Port Fuel Injection
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