Corona Discharge Ingnition for Internal Combustion Engines

2004 ◽  
Author(s):  
Nathan Theiss ◽  
Paul Ronney ◽  
Jian-Bang Liu ◽  
Martin Gundersen
Keyword(s):  
Corona Discharge ◽  
Internal Combustion Engines ◽  
Plasma Discharge ◽  
Combustion Engines ◽  
Ic Engine ◽  
Ignition System ◽  
Bench Tests ◽  
Discharge Ignition ◽  
Engine Knock ◽  
Transient Plasma

The use of Corona (Transient Plasma) discharge as an ignition source alternative to spark ignition (SI) for a Natural Gas fired engine presents an opportunity for increased efficiency and reduced NOx emissions. The multiple ignition sites created by a Corona discharge produce a faster and more complete burn than conventional SI. Bench tests show a faster combustion rise time (∼3×) and higher peak combustion pressures with corona discharge compared to SI. There are challenges encountered in retrofitting a corona discharge ignition system onto an IC engine. Electrode design and placement are critical in preventing arc formation and engine knock.

Spray Evaporative Cooling System Design for Automotive Internal Combustion Engines

2018 ◽  
Author(s):  
Jisjoe T. Jose ◽  
Julian F. Dunne ◽  
Jean-Pierre Pirault ◽  
Christopher A. Long
Keyword(s):  
System Design ◽  
Internal Combustion Engines ◽  
Cooling System ◽  
Evaporative Cooling ◽  
Combustion Engines ◽  
Component Level ◽  
Ic Engine ◽  
Engine Cooling ◽  
Finite Difference Equations ◽  
Evaporative Cooling System

IC engine spray evaporative cooling system design is discussed starting with a review of existing evaporative cooling systems that automotive applications are required to address. A component-level system design is proposed culminating in a simulation model of a PID strategy used to control transient gasside metal temperatures with varying engine load. The model combines a spray evaporation correlation model with 1D finite-difference equations to model the transient heat transfer through a 7 mm thick metal slab which represents the wall of a cylinderhead. Based on the simulation results, the particular changes required of existing engine cooling jacket designs are discussed.

CFD-guided development of a pre-chamber ignition system for internal combustion engines

2021 ◽  
Vol 10 (1) ◽  
pp. 79
Author(s):  
Peng Zhao ◽  
Haiwen Ge ◽  
Siva Parameswaran ◽  
Corbin Freeman ◽  
Jared Endres ◽  
...  
Keyword(s):  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Ignition System

A Study of an Energetically Enhanced Plasma Ignition System for Internal Combustion Engines

2013 ◽  
Vol 41 (12) ◽  
pp. 3223-3232 ◽  
Author(s):  
Bryce C. Thelen ◽  
Daekeun Chun ◽  
Elisa Toulson ◽  
Tonghun Lee
Keyword(s):  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Ignition System ◽  
Plasma Ignition

scholarly journals Advanced Technologies for the Optimization of Internal Combustion Engines

2021 ◽  
Vol 11 (22) ◽  
pp. 10842
Author(s):  
Cinzia Tornatore ◽  
Luca Marchitto
Keyword(s):  
Real Options ◽  
Market Share ◽  
Electric Vehicles ◽  
Entire Range ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Ic Engine ◽  
Advanced Technologies

Even in a scenario where electric vehicles gain market share and the sale of internal combustion engines is gradually reduced, at the present time, there are still no real options that can totally replace the internal combustion (IC) engine over the entire range of its applications [...]

scholarly journals Modelling of the thermal cycle of a gas engine using AVL FIRE Software

2010 ◽  
Vol 141 (2) ◽  
pp. 105-113
Author(s):  
Wojciech TUTAK ◽  
Arkadiusz JAMROZIK
Keyword(s):  
Thermal Cycle ◽  
Internal Combustion Engines ◽  
Combustion Engines ◽  
Control Engineering ◽  
Ic Engine ◽  
Gas Engine ◽  
Combustion Models ◽  
Crank Angle ◽  
Ic Engines ◽  
And Control

Paper presents results of modelling gas engine thermal cycle using AVL FIRE and KIVA 3V software. There are described three combustion models used in software. KIVA and FIRE software are used in Institute of Internal Combustion Engines and Control Engineering for analysis of thermal cycle of IC engines. FIRE software gives many possibilities with many combustion models. All used combustion models are dependent on turbulence of flow field before ignition. Comparison of modelling results of thermal cycle of IC engine is presented in paper. Pressure, temperature, heat release and turbulence parameters variations in function of crank angle as well as spatial distribution of above mentioned quantities at selected crank angles were determined.

scholarly journals Method for Determining Volumetric Efficiency and Its Experimental Validation

2017 ◽  
Vol 5 (1) ◽  
pp. 5-17
Author(s):  
Andrzej Ambrozik ◽  
Dariusz Kurczyński ◽  
Piotr Łagowski
Keyword(s):  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Thermodynamic System ◽  
Volumetric Efficiency ◽  
Experimental Investigations ◽  
Combustion Engines ◽  
Cylinder Pressure ◽  
Operating Cycle ◽  
Ic Engine ◽  
Amount Of Substance

Abstract Modern means of transport are basically powered by piston internal combustion engines. Increasingly rigorous demands are placed on IC engines in order to minimise the detrimental impact they have on the natural environment. That stimulates the development of research on piston internal combustion engines. The research involves experimental and theoretical investigations carried out using computer technologies. While being filled, the cylinder is considered to be an open thermodynamic system, in which non-stationary processes occur. To make calculations of thermodynamic parameters of the engine operating cycle, based on the comparison of cycles, it is necessary to know the mean constant value of cylinder pressure throughout this process. Because of the character of in-cylinder pressure pattern and difficulties in pressure experimental determination, in the present paper, a novel method for the determination of this quantity was presented. In the new approach, the iteration method was used. In the method developed for determining the volumetric efficiency, the following equations were employed: the law of conservation of the amount of substance, the first law of thermodynamics for open system, dependences for changes in the cylinder volume vs. the crankshaft rotation angle, and the state equation. The results of calculations performed with this method were validated by means of experimental investigations carried out for a selected engine at the engine test bench. A satisfactory congruence of computational and experimental results as regards determining the volumetric efficiency was obtained. The method for determining the volumetric efficiency presented in the paper can be used to investigate the processes taking place in the cylinder of an IC engine.

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