Bluff-Body Stabilized Glow Plug Ignition of a Methanol-Fueled IDI Diesel Engine

Neame, Ghabi R.; Wallace, James S.

doi:10.4271/930935

Cited by 4 publications

(1 citation statement)

References 1 publication

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“…Neame and Wallace [60] studied extending the range of operation of a particular glow plug/fuel injection nozzle geometry by placing the glow plug in the wake of a bluff body. They found that addition of the bluff body weakened the NO x emissions of the methanol fueled engine at a small penalty in fuel consumption and enhanced CO and unburned hydrocarbon emissions.…”

Section: The Application Of Glow Plugs In Natural Gas Engines Methanol Engines and Hydrogen Enginesmentioning

confidence: 99%

Problems with glow plug – a review

Woźniak¹,

Ozuna²,

Siczek³

2021

Combustion Engines

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Despite the development of hybrid and electric vehicles, a many-million population of cars with combustion engines, and particularly CI engines occurs on the roads. Also, many stationary CI engines are still utilized. Despite their improved technologies and characteristics the modern CI engines negatively affect an environment due to cold starting problems. Below 0 °C, engine starts are problematic due to the decreased battery performance and the spray characteristics, the increased ignition delay time, and the engine oil viscosity. Therefore, various glow plugs are applied to facilitate this process. Types, features, and applications of glow plugs in various engines have been discussed in the paper. One case of failure of glow plug has been presented in the article, including the cause of it.

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Section: The Application Of Glow Plugs In Natural Gas Engines Methanol Engines and Hydrogen Enginesmentioning

confidence: 99%

Problems with glow plug – a review

Woźniak¹,

Ozuna²,

Siczek³

2021

Combustion Engines

View full text Add to dashboard Cite

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Transient Behavior of Glow Plugs in Direct-Injection Natural Gas Engines

Cheng

Wallace

2012

Journal of Engineering for Gas Turbines and Power

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Glow plugs are a possible ignition source for direct injected natural gas engines. This ignition assistance application is much different than the cold start assist function for which most glow plugs have been designed. In the cold start application, the glow plug is simply heating the air in the cylinder. In the cycle-by-cycle ignition assist application, the glow plug needs to achieve high surface temperatures at specific times in the engine cycle to provide a localized source of ignition. Whereas a simple lumped heat capacitance model is a satisfactory representation of the glow plug for the air heating situation, a much more complex situation exists for hot surface ignition. Simple measurements and theoretical analysis show that the thickness of the heat penetration layer is small within the time scale of the ignition preparation period (1–2 ms). The experiments and analysis were used to develop a discretized representation of the glow plug domain. A simplified heat transfer model, incorporating both convection and radiation losses, was developed for the discretized representation to compute heat transfer to and from the surrounding gas. A scheme for coupling the glow plug model to the surrounding gas computational domain in the KIVA-3V engine simulation code was also developed. The glow plug model successfully simulates the natural gas ignition process for a direct-injection natural gas engine. As well, it can provide detailed information on the local glow plug surface temperature distribution, which can aid in the design of more reliable glow plugs.

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Study of Assisted Compression Ignition in a Direct Injected Natural Gas Engine

Gogolev

Wallace

2017

Journal of Engineering for Gas Turbines and Power

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Natural gas direct injection (DI) and glow plug ignition assist technologies were implemented in a single-cylinder, compression-ignition optical research engine. Initial experiments studied the effects of injector and glow plug shield geometry on ignition quality. Injector and shield geometric effects were found to be significant, with only two of 20 tested geometric combinations resulting in reproducible ignition. Of the two successful combinations, the combination with 0 deg injector angle and 60 deg shield angle was found to result in shorter ignition delay and was selected for further testing. Further experiments explored the effects of the overall equivalence ratio (controlled by injection duration) and intake pressure on ignition delay and combustion performance. Ignition delay was measured to be in the range of 1.6–2.0 ms. Equivalence ratio was found to have little to no effect on the ignition delay. Higher intake pressure was shown to increase ignition delay due to the effect of swirl momentum on fuel jet development, air entrainment, and jet deflection away from optimal contact with the glow plug ignition source. Analysis of combustion was carried out by examination of the rate of heat release (ROHR) profiles. ROHR profiles were consistent with two distinct modes of combustion: premixed mode at all test conditions, and a mixing-controlled mode that only appeared at higher equivalence ratios following premixed combustion.

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Bluff-Body Stabilized Glow Plug Ignition of a Methanol-Fueled IDI Diesel Engine

Cited by 4 publications

References 1 publication

Problems with glow plug – a review

Problems with glow plug – a review

Transient Behavior of Glow Plugs in Direct-Injection Natural Gas Engines

Study of Assisted Compression Ignition in a Direct Injected Natural Gas Engine

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