From:	Jeff Clark
Sent:	Friday, March 11, 2005 1:08 PM
To:	Andy Broff (E-mail); Bill Larch (E-mail); Bob Campbell (E-mail); Brad Carter (E-mail); Cathy Devlin (E-mail); Greg Shank (E-mail); Jeff Clark (E-mail); Jim Gutzwiller (E-mail); Jim Matasic (E-mail); Jim Moritz (E-mail); Jim Rutherford (E-mail); Jim Wells (E-mail); John Haegelin (E-mail); Jose Gutierrez (E-mail); Keith Selby (E-mail); Ken Goshorn (E-mail); Mark Cooper (E-mail); Michael Minotti (E-mail); Pat Fetterman (E-mail); Riccardo Conti (E-mail); Ron Buck (E-mail); Scott Richards (E-mail); Steve Kennedy (E-mail); Tom Franklin (E-mail); Wim Van Dam (E-mail)
Cc:	John Zalar; Frank Farber
Subject:	T-12 Minutes of March 11 2005
NOTE: THE WEB FILES HAVE BEEN UPDATED WITH LAB A CO2 INTAKE AND EXHAUST DATA NOW SHOWING ON THE GRAPHS.

ftp://ftp.astmtmc.cmu.edu/refdata/diesel/t12/data/

Attendance - Jeff Clark, Mark Cooper, Scott Richards, Andy Broff, Bob Campbell, Riccardo Conti, Ron Buck, Greg Shank, Jim Matasic, Jim Moritz, John Haegelin, Jim Gutzwiller, Ken Goshorn, Jose Gutierrez, Joe Franklin

Membership - no changes

Minutes - March 4 minutes approved as issued.

Updates at Labs
SwRI - run in progress (220 hours) should finish on Monday.
XOM - run in progress, expected finish after next week's meeting. Stage 1 went well, no nickel in the oil. EGR coolant started at 100 deg C and finished at 55. This run is with new egr coolers.
PE - made it through stage 1 with cleaned coolers.
LZ and Afton - no news.

Greg stessed it was extremely important for the reference test reported data to be sent to the TMC.

Operational Data Review
Phase 1 Tailpipe Temperature and Intake Manifold Pressure - Riccardo was curious about tests that showed high tailpipe temp and low inman pressure and tests that showed vice versa. It was commented that timing and CO2 levels may play a part. Riccardo requested that timing was added to operational summary data and he will set up a template for reporting data. Bob commented that there could be turbo effects in play as well.

Oil Sump Temp - this test was run early on and SwRI believes they have fixed the problem. It was also noted that this was an exploratory test on split hardware. The current test at SwRI is running about 128 deg C in stage 2. Some concern was expressed that the labs are running slight different sump temps (one lab at 128, three at 130, and one at 132). It was mentioned that oil temp (both sump and gallery) is sensitive to oil gallery thermocouple insertion depth. Scott stated another cell was running at 131 sump temp. ACTION ITEM - labs are to confirm proper sump and gallery t/c.

Blowby - Riccardo is seeing a mix of oil and water in the blowby and it is plugging the meter. He believes it is a reading affect, crankcase pressure is not being affected.

Oil Gallery Pressure - concern was expressed over lab to lab variability. It was noted that one of oils was not 820-2 (run F 3). It was speculated that old and new blocks may play a part, but this doesn't really explain the spread. It was also noted that the matrix will be run with only the new style blocks. Bearing clearances have also changed with the new blocks. Lots and lots of discussion took place. This will be discussed further next week.

CO2 Intake and Exhaust - After some discussion, it was decided that these specs be nailed down by the end of next Thursday's meeting. Scott will propose some new numbers; everyoned was urged to examine the data. Jeff will tabulate mean/s/x/i values of the data.

Next Meeting - in Paulsboro, NJ at ExxonMobil. 8:00am Eastern. Thursday, March 2005.

Regards,

Jeff Clark
Staff Engineer
ASTM Test Monitoring Center
6555 Penn Avenue
Pittsburgh, PA 15206
412-365-1032
412-848-8843 (cell)
jac@astmtmc.cmu.edu