From:	Jeff Clark
Sent:	Wednesday, February 02, 2005 12:24 PM
To:	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 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)
Subject:	T-12 Meeting Minutes of Feb. 2 2005
Mack T-12 Task Force Teleconference
February 02, 2005

Minutes

Roll Call - Jim Gutzwiller, Bob Campbell, Jim Moritz, John Haegelin, Tom Franklin, Scott Richards, Jose Gutierrez, Riccardo Conti, Wim van Dam, Mark Cooper, Andy Broff, Ron Buck, Jeff Clark, Greg Shank, Jim Matasic

Changes to Membership - none.

Approval of 01/27 Meeting Minutes - approved as issued.

Update on Shake-Down/Testing at each Laboratory 

 LZ - currently trying to run Phase II, but cannot get Intake and Exhaust CO2 in spec at the same time. Jim was also having problem with the engine coolant sensor causing the engine to de-rate. Other labs have seen this. Jim used a resistor to override it. Mack was asked to check the ECM algorithms to make sure this wasn’t a problem. Phase I IMP about 265 kPa.

PE - Jim Moritz distributed his op data with two coolers and 100 deg C water to the egr coolers. The water was also being pre-heated to 90 deg C. The coolers still fouled at about 47 hours. The coolant temp was dropped to 90, control was gained again for a period of time. As control began to struggle again, coolant temp was dropped to 80 degrees. Control was temporarily regained. As control started to struggle, Jim dropped to 50 deg C, which proved to be too much. He raised coolant temp back 60 deg C and held there. From 71 to 88 hours, control was maintained.

Afton - no update given.

XOM - ran 25 hours IMT of 90 dec C and the engine ran fine. Some fine-tuning of the venturi was necessary. IMP was about 290 kPa for Phase I. (three coolers and 80 deg C egr coolant). 

SR - ran IMT of 90 deg C and the engine ran fine. There experience was similar to XOM’s.  

SR and XOM are to submit op data logs for the runs with 90 deg C IMT.

Final Configuration - No. of EGR Coolers,  IMT, Process Water Temp.
Motion: Two Egr coolers and Phase I IMT of 90 deg. C (Campbell, Conti). Motion passed unanimously.

Specification: Phase I and Phase II egr pre-venturi temp min 104 deg; egr cooler process water temp can float to achieve this.

Guideline: keep the Modine out temp above 30 deg C,

The upcoming tests are to start with new egr coolers.

Oil consumption will also be calculated (separately) from 25 to 100 hours.

Warm-up Procedure - Jim Matasic distributed his method of warming up after last week’s conference call. By consensus, the group to adopt this method of warming-up:
At the conclusion of step three, when the torque stabilizes, begin opening the venturi and control the vgt as necessary to get to test conditions by the conclusion of the warm-up.

Template for Operational Data - Jeff has received op data from three labs. The data will be organized and posted on the TMC web site by Friday.

Hardware Update - there are no external parts issues currently delaying work at the labs.

EGR Cooler Cleaning Procedure - on hold for now.

Next TelCon/Meeting - Friday 2/11 at 10:00 am EST. This call will conclude at 11:00 at the latest to make way for a C13 call.

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