Plasma Ignition System for a Metal Powder Combustion Chamber

2021 ◽  
Author(s):  
Preetom Borah ◽  
Keyword(s):  
Combustion Chamber ◽  
Metal Powder ◽  
Ignition System ◽  
Plasma Ignition ◽  
Powder Combustion

Extending Lean and Exhaust Gas Recirculation-Dilute Operating Limits of a Modern Gasoline Direct-Injection Engine Using a Low-Energy Transient Plasma Ignition System

2016 ◽  
Vol 138 (11) ◽  
Author(s):  
James Sevik ◽  
Thomas Wallner ◽  
Michael Pamminger ◽  
Riccardo Scarcelli ◽  
Dan Singleton ◽  
...  
Keyword(s):  
Direct Injection ◽  
Exhaust Gas Recirculation ◽  
Low Energy ◽  
Gasoline Direct Injection ◽  
Combustion Stability ◽  
Exhaust Gas ◽  
Ignition System ◽  
Plasma Ignition ◽  
Gas Recirculation ◽  
Transient Plasma

The efficiency improvement and emissions reduction potential of lean and exhaust gas recirculation (EGR)-dilute operation of spark-ignition gasoline engines is well understood and documented. However, dilute operation is generally limited by deteriorating combustion stability with increasing inert gas levels. The combustion stability decreases due to reduced mixture flame speeds resulting in significantly increased combustion initiation periods and burn durations. A study was designed and executed to evaluate the potential to extend lean and EGR-dilute limits using a low-energy transient plasma ignition system. The low-energy transient plasma was generated by nanosecond pulses and its performance compared to a conventional transistorized coil ignition (TCI) system operated on an automotive, gasoline direct-injection (GDI) single-cylinder research engine. The experimental assessment was focused on steady-state experiments at the part load condition of 1500 rpm 5.6 bar indicated mean effective pressure (IMEP), where dilution tolerance is particularly critical to improving efficiency and emission performance. Experimental results suggest that the energy delivery process of the low-energy transient plasma ignition system significantly improves part load dilution tolerance by reducing the early flame development period. Statistical analysis of relevant combustion metrics was performed in order to further investigate the effects of the advanced ignition system on combustion stability. Results confirm that at select operating conditions EGR tolerance and lean limit could be improved by as much as 20% (from 22.7 to 27.1% EGR) and nearly 10% (from λ = 1.55 to 1.7) with the low-energy transient plasma ignition system.

Microwave-assisted plasma ignition in a constant volume combustion chamber

2016 ◽  
Vol 167 ◽  
pp. 86-96 ◽  
Author(s):  
Joonsik Hwang ◽  
Choongsik Bae ◽  
Jooyoung Park ◽  
Wonho Choe ◽  
Jeonghwa Cha ◽  
...  
Keyword(s):  
Combustion Chamber ◽  
Constant Volume ◽  
Plasma Ignition ◽  
Microwave Assisted ◽  
Constant Volume Combustion ◽  
Constant Volume Combustion Chamber

scholarly journals Analisa posisi derajat tonjolan magnet (trigger magnet) pada konsumsi bahan bakar

2018 ◽  
Vol 1 (1) ◽  
pp. 42
Author(s):  
Fatkur Rhohman ◽  
Susdi Subandriyo ◽  
Hesti Istiqlaliyah
Keyword(s):  
Combustion Chamber ◽  
Electric Current ◽  
High Voltage ◽  
Rotation Rate ◽  
Combustion Process ◽  
Engine Performance ◽  
Ignition System ◽  
Spark Plug ◽  
Significant Difference ◽  
Independent Variable

In automotive, many various modifications are made to improve engine performance. One that is done is to maximize the combustion that occurs in the combustion chamber. By maximizing the ignition system in the combustion process, it is expected to enlarge sparks from spark plugs. One of the components affecting the combustion process is Magnet, serves to generate electricity that will become a high voltage electric current and allow the occurrence of spark jumps on the spark plug. In this study, the independent variable is the modified tregger magnet which is reversed 0.50, to 9.50 and 90. in general there is no significant difference. Fcount value for result on magnetic trigger type = 3.00 <F (0.05; 2.24) = 3.40 (rejected H0) means reversing the 90 and 9.50 magnetic triggers does not significantly influence. In addition, Fcount for 6000, 7000, 8000 rpm engine yield = 1.00 <F (0.05; 2.24) = 3.40 (Rejected H0) means the engine's rotation rate has no significant effect. So there is no effect of fuel consumption on the modified magnetic trigger, nor at rpm 6000, rpm 7000 and rpm 8000.

Effectiveness of pulse-plasma ignition systems with synchronization of processes in discharge circuits

2020 ◽  
pp. 11-14
Author(s):  
F.A. Gizatullin ◽  
R.M. Salihov
Keyword(s):  
Arc Discharge ◽  
Electric Arc ◽  
Pulse Plasma ◽  
Turbine Engines ◽  
Discharge Process ◽  
Gas Turbine Engines ◽  
Pulsed Plasma ◽  
Ignition System ◽  
Plasma Ignition ◽  
Spark Plug

The results of the development and modeling of pulse-plasma ignition systems (IS) of gas turbine engines with synchronization of processes in the main and auxiliary discharge circuits, which occupy an intermediate position between the pulsed capacitive and plasma IS, in which a long electric arc discharge is implemented, are presented. It is experimentally proven that the flammability of pulsed-plasma IS exceeds the igniting ability of capacitive IS of an oscillatory discharge with equal energies of storage capacitors. Keywords: pulse-plasma ignition system, aperiodic discharge, process synchronization, discharge current, spark plug voltage, flammability, starting characteristic of the igniter. [email protected]

New Design of Ignition System of Gas Turbine

2014 ◽  
Vol 592-594 ◽  
pp. 1662-1666
Author(s):  
Rahul Singh ◽  
Amber Jain ◽  
Harish Kumar
Keyword(s):  
Thermal Analysis ◽  
Combustion Chamber ◽  
Gas Turbine ◽  
Fuel Mixture ◽  
Gas Turbine Engine ◽  
Ignition System ◽  
Turbine Engine ◽  
New Type ◽  
New System

This paper is all about a new type of ignition system for igniting the air-fuel mixture within combustion chamber of a gas turbine engine. In this system there will a separate ignition inside the primary combustion chamber which will be outside the main combustion chamber and responsible for igniting main source of air/fuel mixture inside the combustion chamber. This system is designed to overcome several problems of present ignition system of gas turbine engine and also thermal analysis of this new system has been shown in this paper.

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