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Spark Ignition - Searching for the Optimal Spark Profile

Ängeby, Jakob ; Saha, Anupam LU ; Lundgren, Marcus LU and Björnsson, Ola LU (2022) 9th International Engine Congress p.1-17
Abstract
The impact of different spark designs on the ignition and combustion
stability is studied using a 13-liter CNG fueled heavy duty spark ignited engine
to search for the “optimal” spark design. Experimental results show that robust
ignition can be achieved using a significantly shorter spark duration and lower
energy than expected. A capacitive discharge ignition (CDI) system enabled to
separately control the available spark voltage, current and duration (FlexiSpark®
CDI) was compared to a standard CDI system without spark control and an inductive discharge (IDI) ignition system. Typically, a robust ignition can be provided using only 5% of the spark duration and 17% of the spark energy compared to that required... (More)
The impact of different spark designs on the ignition and combustion
stability is studied using a 13-liter CNG fueled heavy duty spark ignited engine
to search for the “optimal” spark design. Experimental results show that robust
ignition can be achieved using a significantly shorter spark duration and lower
energy than expected. A capacitive discharge ignition (CDI) system enabled to
separately control the available spark voltage, current and duration (FlexiSpark®
CDI) was compared to a standard CDI system without spark control and an inductive discharge (IDI) ignition system. Typically, a robust ignition can be provided using only 5% of the spark duration and 17% of the spark energy compared to that required by an IDI system to accomplish an equivalent ignition and combustion stability. By applying control of the spark, a robust ignition can be provided which is optimized for the fuel, the engine design, the engine operating condition, and the condition of the spark plugs. This offers a potential to significantly reduce the spark-plug wear and the total cost of ownership without compromising engine performance.

The results are especially interesting in the view of Hydrogen fueled SI-ICE, where the required available spark voltage is high, but the required spark energy is low. It is desirable to use a spark design with just enough voltage and power to initiate a sustainable combustion, but with minimal energy not to excessively wear and heat the spark plug electrodes to avoid pre-ignition. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
in press
subject
keywords
spark ignition, Ignitability, Internal combusiton engines, Renewable fuels, CNG, Biogas
host publication
9th International Engine Congress 2022 : Mobilität und Fahrzeugkonzepte von morgen - Mobilität und Fahrzeugkonzepte von morgen
editor
Heintzel, Alexander
pages
18 pages
publisher
Springer
conference name
9th International Engine Congress
conference location
Baden Baden, Germany
conference dates
2022-02-22 - 2022-02-23
ISBN
978-3-658-44739-7
978-3-658-44740-3
DOI
10.1007/978-3-658-44740-3_26
language
English
LU publication?
yes
id
012ffeeb-00a6-48bb-afbf-9d21a8380540
date added to LUP
2022-07-20 13:04:20
date last changed
2024-08-05 10:40:13
@inproceedings{012ffeeb-00a6-48bb-afbf-9d21a8380540,
  abstract     = {{The impact of different spark designs on the ignition and combustion <br/>stability is studied using a 13-liter CNG fueled heavy duty spark ignited engine <br/>to search for the “optimal” spark design. Experimental results show that robust <br/>ignition can be achieved using a significantly shorter spark duration and lower <br/>energy than expected. A capacitive discharge ignition (CDI) system enabled to <br/>separately control the available spark voltage, current and duration (FlexiSpark®<br/>CDI) was compared to a standard CDI system without spark control and an inductive discharge (IDI) ignition system. Typically, a robust ignition can be provided using only 5% of the spark duration and 17% of the spark energy compared to that required by an IDI system to accomplish an equivalent ignition and combustion stability. By applying control of the spark, a robust ignition can be provided which is optimized for the fuel, the engine design, the engine operating condition, and the condition of the spark plugs. This offers a potential to significantly reduce the spark-plug wear and the total cost of ownership without compromising engine performance.<br/><br/>The results are especially interesting in the view of Hydrogen fueled SI-ICE, where the required available spark voltage is high, but the required spark energy is low. It is desirable to use a spark design with just enough voltage and power to initiate a sustainable combustion, but with minimal energy not to excessively wear and heat the spark plug electrodes to avoid pre-ignition.}},
  author       = {{Ängeby, Jakob and Saha, Anupam and Lundgren, Marcus and Björnsson, Ola}},
  booktitle    = {{9th International Engine Congress 2022 : Mobilität und Fahrzeugkonzepte von morgen}},
  editor       = {{Heintzel, Alexander}},
  isbn         = {{978-3-658-44739-7}},
  keywords     = {{spark ignition; Ignitability; Internal combusiton engines; Renewable fuels; CNG; Biogas}},
  language     = {{eng}},
  pages        = {{1--17}},
  publisher    = {{Springer}},
  title        = {{Spark Ignition - Searching for the Optimal Spark Profile}},
  url          = {{https://lup.lub.lu.se/search/files/121709792/Spark_Ignition_Searching_for_the_Optimal_Spark_Profile.pdf}},
  doi          = {{10.1007/978-3-658-44740-3_26}},
  year         = {{2022}},
}