Novel measurement techniques for oil consumption and spark plug temperature measurement to support engine components development in terms of wear and in situ monitoring

Tilz, Anton; Rossegger, Bernhard; Vareka, Martin; Higgs, Ansel; Pommerenke, David; Engelmayer, Michael; Wimmer, Andreas

doi:10.1016/j.wear.2023.204730

Cited by 3 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Its design, i.e., the shape of the combustion chamber; the location of the valves; the type of spark plug; and the operating parameters affect the temperatures reached in the cylinder. In practice, many types of spark plug designs are used and adapted to the operating conditions in the combustion chamber of a selected internal combustion engine: standard-with one side electrode; specialized-with several side electrodes; U-super-with a groove in the side electrode; and experimental designs with specially shaped insulators [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of the Spark Plug on Exhaust Gas Composition

et al. 2023

View full text Add to dashboard Cite

This paper analyses the influence of the type of electrode in a spark plug on exhaust gas emission. The objects of the research were the following vehicles of different years of production: the Volkswagen Beetle 1300, the Honda Nighthawk 650, the BMW e46 318i, the Hyundai i10, and the Audi A4 B6. The vehicles were powered by petrol and LPG. Spark plugs were selected for the vehicles, with different kinds of construction for the main electrodes and different numbers of poles but with similar heat values. A comparative analysis of the composition of the exhaust gas mixture was performed, depending on the set of spark plugs used. The amount of CO, HC, CO2, and O2 emissions was analysed. The results were compared with the applicable exhaust gas emission standards. Both in the case of E5 95 petrol and LPG gas, lower exhaust gas emissions were observed when iridium spark plugs were used.

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of the Spark Plug on Exhaust Gas Composition

et al. 2023

View full text Add to dashboard Cite

show abstract

Influence of initial electric arc root position on electric arc behavior with spark plugs in large lean burn spark ignited gas engines

Tilz,

Kiesling,

Pirker

et al. 2024

International Journal of Engine Research

View full text Add to dashboard Cite

Increasing efficiency while reducing emissions leads to high mean effective pressures, high compression ratios and increasingly lean operation for spark ignited large gas engines. Despite these boundary conditions, gas engines must be operated between knocking and misfiring at low cycle-to-cycle fluctuations. The excess air ratio and the ignition process of the lean mixture greatly influence the stability of the combustion process. To enable sufficiently low cycle-to-cycle fluctuation of the combustion process despite the ever increasing excess air ratio levels, it is necessary to understand and investigate the sub-areas of the engine process, for example, ignition, flow condition and mixture formation. This paper focuses on one sub-area of conventional spark ignition, the influence of the electric arc root position on the origin and stretching of the electric arc, because electric arc behavior is considered important in the subsequent combustion process. The results show that electric arc roots on the downstream end of the electrodes tend to enable a longer electric arc length at the first electric arc short circuit (i.e. the first abrupt shortening of the electric arc during its spark duration) than electric arcs with electric arc roots on the upstream ends of the electrodes.

show abstract

Towards Robust Hydrogen Combustion: Precise Lube Oil Consumption Measurement as an Enabler for Tackling Pre-Ignition

Rossegger,

Grabner,

Gschiel

et al. 2024

SAE Technical Paper Series

View full text Add to dashboard Cite

<div class="section abstract"><div class="htmlview paragraph">The use of carbon-free fuels, such as ammonia or hydrogen, or at least carbon neutral fuels, such as green methane or methanol is one of the most important paths in the development of low-carbon internal combustion engines (ICE). Especially for large, heavy-duty engines, this is a promising route, as replacing them with battery electric or fuel cell drives poses even greater challenges, at least for the time being. For some applications or areas of the world, small ICEs for trucks, passenger cars or off-road vehicles, operated with alternative fuels will still remain the means of choice. One of the biggest challenges in the development of hydrogen combustion engines is achieving high compression ratios and mean effective pressures due to combustion anomalies, caused by the low ignition delay and broad flammability limit of hydrogen. Oil droplets are considered to be one of the main triggers for pre-ignition and knocking. This paper will give a brief introduction, showing the results of studies on the contribution of oil droplets to combustion anomalies. In this study, oil droplets were artificially injected into the intake manifold in order to trigger pre-ignition. As the correlation between these two phenomena was clearly seen, the second part of the paper will focus on the measurement of oil consumption, which is an important way to combat combustion anomalies. To this end, three innovative measurement technologies were compared. The first method is based on the balance of carbon entering and leaving the combustion chamber. The second method is based on the use of deuterium, which is added to the engine oil as a tracer. The third method is based on measuring the unburnt portion of hydrocarbons with a time-of-flight mass spectrometer (TOF-MS). All methods provide very similar qualitative results. The deuterium and the carbon method show very good quantitative congruence as well and are therefore considered to be very precise and. The respective advantages and disadvantages are shown in the discussion chapter.</div><div class="htmlview paragraph">Additionally, measurement data will show the influence of the hydrogen production (green vs. grey) on its isotopic ratio. This can be a measure for classifying hydrogen without knowing the exact source.</div></div>

show abstract

Novel measurement techniques for oil consumption and spark plug temperature measurement to support engine components development in terms of wear and in situ monitoring

Cited by 3 publications

References 15 publications

Analysis of the Influence of the Spark Plug on Exhaust Gas Composition

Analysis of the Influence of the Spark Plug on Exhaust Gas Composition

Influence of initial electric arc root position on electric arc behavior with spark plugs in large lean burn spark ignited gas engines

Towards Robust Hydrogen Combustion: Precise Lube Oil Consumption Measurement as an Enabler for Tackling Pre-Ignition

Contact Info

Product

Resources

About