Finding a way through the “misty” evaluation of the flammability and explosivity of kerosene aerosols

El-Zahlanieh, Stephanie; Santos, Idalba Souza Dos; Sivabalan, Shyarinya; Brunello, David; Tribouilloy, Benoît; Vignes, Alexis; Dufaud, Olivier

doi:10.1016/j.fuel.2022.125275

Cited by 10 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spark discharge between these electrodes initiated the ignition, enabling a controlled release of energy within the vessel. In this work, we implemented a siphon-gravity feed spray system, inspired by the work of El-Zahlanieh et al This system consisted of a Venturi tee featuring dual inlets: one connected to a compressed air cylinder to serve as the air inlet and the other linked to a fuel container maintained at room temperature to act as the liquid inlet. The fine-tuning of the aerosol cloud’s flow rate and the distribution of droplet sizes were achieved by adjusting the two nozzles/caps within the spray system, thereby enabling modifications to the initial conditions, as suggested by El-Zahlanieh et al and Wang …”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

“…Using plexiglas ensured the accurate capture of optical signals, contributing to precise measurements and analysis. The PIV experiments closely followed the steps outlined in El-Zahlanieh et al, 28 concerning the utilization of a continuous-wave laser operating at a wavelength of 532 nm, powered by a neodymiumdoped yttrium aluminum garnet (Nd:YAG) system. This laser was instrumental in illuminating dispersed liquid droplets, enabling precise tracking of their movement, a process captured meticulously at a rate of 2000 frames/s using the high-speed camera, specifically the Phantom VEO 410L model.…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

“…This laser was instrumental in illuminating dispersed liquid droplets, enabling precise tracking of their movement, a process captured meticulously at a rate of 2000 frames/s using the high-speed camera, specifically the Phantom VEO 410L model. Subsequent data extraction, analysis, and validation were carried out consistently with the methodologies described in PIVlab version 2.45, as elucidated by El-Zahlanieh et al 28 The second vessel, depicted in Figure 1b, employed a different construction material. A 10 mm-thick stainless steel vessel was utilized to conduct experiments about explosion parameters.…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Study on the Explosion Parameters of n-Decane Aerosol under Saturated Vapor Pressure

Wang,

Liu,

2024

ACS Omega

View full text Add to dashboard Cite

This research aims to conduct a comprehensive investigation and analysis of the effects of particle size and concentration on crucial explosion parameters in n-decane aerosols. Two sets of n-decane aerosols with different concentrations were initially measured, with Sauter mean diameters of 22 and 38 μm, respectively. These measurements served as the foundation for understanding the impact of the particle size on explosion parameters. Subsequently, experiments were performed on n-decane aerosols with various concentrations, utilizing an ignition energy of 40.32 J. The analysis focused on critical explosion parameters including the lower flammability limit, explosion pressure, explosion temperature, and flame propagation delay time. Through thorough examination of the data obtained from these experiments, the research elucidated the relationship between n-decane concentration, particle size, and these explosion parameters.

show abstract

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Study on the Explosion Parameters of n-Decane Aerosol under Saturated Vapor Pressure

Wang,

Liu,

2024

ACS Omega

View full text Add to dashboard Cite

show abstract

“…The ignition and combustion of fuel mist is a complex physicochemical phenomenon [31][32][33]. Contrary to the ignition and combustion of an isolated fuel droplet in an unconfined oxidizing atmosphere [34][35][36], the processes of ignition and combustion of fuel mist depend on the local instantaneous droplet size, liquid vapor concentration, and distance between droplets [37].…”

Section: Introductionmentioning

confidence: 99%

Crankcase Explosions in Marine Diesel Engines: A Computational Study of Unvented and Vented Explosions of Lubricating Oil Mist

Ivanov,

Frolov,

Semenov

et al. 2023

JMSE

View full text Add to dashboard Cite

Accidental crankcase explosions in marine diesel engines are presumably caused by the inflammation of lubricating oil in air followed by flame propagation and pressure buildup. This manuscript deals with the numerical simulation of internal unvented and vented crankcase explosions of lubricating oil mist using the 3D CFD approach for two-phase turbulent reactive flow with finite-rate turbulent/molecular mixing and chemistry. The lubricating oil mist was treated as either monodispersed with a droplet size of 60 μm or polydispersed with a trimodal droplet size distribution (10 μm (10 wt%), 250 μm (10 wt%), and 500 μm (80 wt%)). The mist was partly pre-evaporated with pre-evaporation degrees of 60%, 70%, and 80%. As an example, a typical low-speed two-stroke six-cylinder marine diesel engine was considered. Four possible accidental ignition sites were considered in different linked segments of the crankcase, namely the leakage of hot blow-by gases through the faulty stuffing box, a hot spot on the crankpin bearing, electrostatic discharge in the open space at the A-frame, and a hot spot on the main bearing. Calculations show that the most important parameter affecting the dynamics of crankcase explosion is the pre-evaporation degree of the oil mist, whereas the oil droplet size distribution plays a minor role. The most severe unvented explosion was caused by the hot spot ignition of the oil mist on the main bearing and flame breaking through the windows connecting the crankcase segments. The predicted maximum rate of pressure rise in the crankcase attained 0.6–0.7 bar/s, whereas the apparent turbulent burning velocity attained 7–8 m/s. The rate of heat release attained a value of 13 MW. Explosion venting caused the rate of pressure rise to decrease and become negative. However, vent opening does not lead to an immediate pressure drop in the crankcase: the pressure keeps growing for a certain time and attains a maximum value that can be a factor of 2 higher than the vent opening pressure.

show abstract

Effects of process parameters on preparation of Ti@SiO2 particles during fluidized bed chemical vapor deposition via design of experiments

Liu

Liang

Liu

2022

Chemical Engineering Research and Design

View full text Add to dashboard Cite

Finding a way through the “misty” evaluation of the flammability and explosivity of kerosene aerosols

Cited by 10 publications

References 32 publications

Experimental Study on the Explosion Parameters of n-Decane Aerosol under Saturated Vapor Pressure

Experimental Study on the Explosion Parameters of n-Decane Aerosol under Saturated Vapor Pressure

Crankcase Explosions in Marine Diesel Engines: A Computational Study of Unvented and Vented Explosions of Lubricating Oil Mist

Effects of process parameters on preparation of Ti@SiO2 particles during fluidized bed chemical vapor deposition via design of experiments

Contact Info

Product

Resources

About