1 / 16

Batch S Rings in the Mack T-11

Batch S Rings in the Mack T-11. Presented to Mack Surveillance Panel Teleconference 23 April 2010 Jim Rutherford. Bottom Line.

dorie
Download Presentation

Batch S Rings in the Mack T-11

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Batch S Rings in the Mack T-11 Presented to Mack Surveillance Panel Teleconference 23 April 2010 Jim Rutherford

  2. Bottom Line • We could make a ICF for soot @ 12 and 15 cSt but it would probably be more than 1% so, since we don’t usually get more than 7.7 soot in a test, no candidate would pass. • We could make various ICF’s for viscosity increase at 3.5, 6.0, and 6.7% soot but they are big (>9 cSt) and it is doubtful that a candidate would pass. • Flipping the axes might make it easier to get a simple number but doesn’t really help and hurts precision. • If we flipped axes, D4485 would need fixing due to tiered limits. • If we started LTMS Version 2, it would probably say we are too far from where we started.

  3. What has happened to Viscosity Increase?

  4. Does Oil Consumption Explain the Change?

  5. A Model of Viscosity Increase at 6.0% Soot

  6. What has happened to MRV?

  7. A Model for MRV

  8. A Model for Viscosity Increase at 6.7% Soot

  9. A Model for Viscosity Increase at 3.5% Soot

  10. The “Best” ICF’s for Viscosity Increase

  11. Other ICF’s

  12. More ICF’s

  13. Maybe we should swap axes for this new test If we are measure viscosity increase near the break, the abscissa has more variability than the ordinate. However, if we are not near break and extrapolating, the reverse could be true. But are we measuring the same thing then?

  14. Current LTMS Industry – Soot at 12 cSt

  15. Industry – Uncorrected Soot at 12 cSt

  16. Industry – Viscosity Increase at 6% Soot

More Related