Correlating Laboratory Oil Aerosol Coking Rig Tests to Diesel Engine Tests to Understand the Mechanisms Responsible for Turbocharger Compressor Coking

Uy, Dairene; Pranis, George; Morelli, Anthony; Gangopadhyay, Arup; Michlberger, Alexander; Secue, Nicholas; Kinzel, Mike; Adams, T G; Streck, Kevin; Lance, Michael J.; Wereszczak, Andrew A.

doi:10.4271/2017-01-0887

Cited by 3 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… The circumferential and radial distribution uniformity on the shroud side is higher than that on the hub side. The phenomenon is consistent with the realistic deposition in Figures and in Uy's literature . Also, the distribution of concentration in Figure is consistent with the cloud charts in Figure . …”

Section: Resultssupporting

confidence: 90%

“… In Figure , in the direction of channel on the hub side of the diffusor, the contaminant concentration is relatively higher than that of other adjacent areas, as shown in the red arrow direction. The phenomenon is consistent with the realistic deposition in Figure provided by Uy …”

Section: Resultssupporting

confidence: 90%

“…The phenomenon is consistent with the realistic deposition in Figures 4 and 5 in Uy's literature. 50 Also, the distribution of concentration in Figure 11 is consistent with the cloud charts in Figure 9.…”

Section: The Circumferential and Radial Distribution Uniformitysupporting

confidence: 74%

“…In the injection properties, diameter distribution is set as rosin-rammler. Referring to Dairene's literature, 50 one of the peaks of the droplet diameters is between 1 μm and 3 μm. Therefore, the mean diameter is set within this range.…”

Section: Capture Efficiencymentioning

confidence: 99%

See 3 more Smart Citations

Quantitative computational fluid dynamic analyses of oil droplets deposition on vaneless diffusor walls of a centrifugal compressor

Sun

Song

et al. 2019

Energy Science & Engineering

View full text Add to dashboard Cite

In the vehicle turbocharger operating process, the diffusor walls are susceptible to oil droplet deposition. This deposition may cause deterioration in the diffusor flow performance, consequently resulting in the deterioration of compressor performance. In this paper, a three‐dimensional steady computational fluid dynamic (CFD) numerical investigation was performed to study droplet deposition on the walls of a centrifugal compressor diffusor. Firstly, the theoretical basis of oil droplet distribution and formation on the diffusor were presented. On the basis of these, the distribution rules of the capture efficiency and particle concentration for the diffusor were investigated considering six different droplet diameters (0.25 μm, 0.5 μm, 0.75 μm, 1.00 μm, 1.25 μm, 1.5 μm). The results indicate that the particle mass concentration on the hub side increased gradually, and the concentration on the shroud side decreased inversely. Furthermore, the area of high particle mass concentration focused on the small radius area of the hub side or at the downstream of the channel in the direction of the streamline. And the particle mass concentration on the shroud is equally distributed. Finally, the combination of turbulent diffusion and inertial theory was proposed to analyze the mentioned phenomenon, and the droplet deposition mechanisms on the centrifugal compressor diffusor were summarized.

show abstract

Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 90%

Section: The Circumferential and Radial Distribution Uniformitysupporting

confidence: 74%

Section: Capture Efficiencymentioning

confidence: 99%

See 2 more Smart Citations

Quantitative computational fluid dynamic analyses of oil droplets deposition on vaneless diffusor walls of a centrifugal compressor

Sun

Song

et al. 2019

Energy Science & Engineering

View full text Add to dashboard Cite

show abstract

The Flow of Lubricant as a Mist in the Piston Assembly and Crankcase of a Fired Gasoline Engine: The Effect of Viscosity Modifier and the Link to Lubricant Degradation

Dyson,

Priest,

Lee

2024

Tribol Lett

View full text Add to dashboard Cite

Droplet flows, termed misting, are significant lubrication flow mechanisms to, in and around the piston assembly. Therefore, these are important in piston assembly tribology and engine performance. Crankcase lubricant degradation rate has been hypothesised to be influenced by lubricant droplet flows through the piston assembly and crankcase, but not previously confirmed. Lubricant was sampled from the sump, top ring zone (TRZ), and mist and aerosol from the crankcase during an extended run. The physical and chemical degradation of these samples was characterised. Droplet flows were intermediate in degradation and fuel dilution between TRZ and sump. Flows with smaller droplet sizes were more degraded that those with larger droplets. The degradation of polymers was dependent on their molecular architecture.

show abstract

Numerical and experimental study on temperature and heat transfer characteristics in centrifugal compressor diffuser

Wang

Mousa

et al. 2023

Applied Thermal Engineering

View full text Add to dashboard Cite

Correlating Laboratory Oil Aerosol Coking Rig Tests to Diesel Engine Tests to Understand the Mechanisms Responsible for Turbocharger Compressor Coking

Cited by 3 publications

References 8 publications

Quantitative computational fluid dynamic analyses of oil droplets deposition on vaneless diffusor walls of a centrifugal compressor

Quantitative computational fluid dynamic analyses of oil droplets deposition on vaneless diffusor walls of a centrifugal compressor

The Flow of Lubricant as a Mist in the Piston Assembly and Crankcase of a Fired Gasoline Engine: The Effect of Viscosity Modifier and the Link to Lubricant Degradation

Numerical and experimental study on temperature and heat transfer characteristics in centrifugal compressor diffuser

Contact Info

Product

Resources

About