GenSet ASTM Standards & Literature Review Nick Johnson NBEL

Outline  ASTM D a  STM for Insolubles in Used Lubricating Oil  ASTM D  STM for Diesel Fuel diluent in Used Diesel Engine Oils by Gas Chromatography  ASTM D  STM for Evaluation of Diesel Engine Oils in T-8 Diesel Engine  Literature Review  Published Reports of Similar Tests  Specific Gravity of ULSD for Genset Test  Nitrogen Generators

ASTM D a  Pentane and Toluene Insolubes in Lubricating Oils via Centrifuge  Heat Sample to 60  5  C and agitate  Strain through 150 um Sieve  Centrifuge Sample 20 mins, 100 mL sample size  Calculate percentage insolubles using following equation: % = 10(B-A)  A = mass of empty dried centrifuge tube  B = mass of dried insolubles and centrifuge tube

ASTM D  Determines amount of Diesel Fuel in Engine Lubricant Sample via GC  Uses 1 uL of sample for packed column  Measures against Calibrated Samples  Determines % mass of diesel fuel using following equation C s = (R s ) x (C 2 -C 1 ) / (R 2 -R 1 )

ASTM D  Test Standard known as Mack - T8 for Turbocharged Diesels  Test Lubricating oil every 25 h  Checks for changes in viscosity, consumed oil, and soot levels  Engine levels not run at constant load  Start up and tear down procedure may be helpful when switching from sample to sample

Literature Review for Soot Levels in Lubricating Oil  “Effect of diesel soot on lubricant oil viscosity” George, S et. al… WVU ME Dept 2006  Measured variation of viscosity based on percentage of soot in lubricating oil  Test samples conducted on Wells-Brookfield viscometer at 40  C and 90  C  Used various oils and soot was actually scraped off inner exhaust manifold and added to oil  Soot levels predetermined and set into 3 various categories

Literature Review for Soot Levels in Lubricating Oil  “Simultaneous estimation of soot and diesel contamination in engine oil using electrochemical impedance spectroscopy” Ulrich, C et. al… Linkoping University, Sweden 2006  Uses Electrical Impedance and Multivariate data analysis to measure levels of soot and diesel in lubricating oil  Predetermined amounts of soot and diesel were added to an oil sample and then measured using the Electrical Impedance spectrometer  Diesel levels were found to be measured at low frequencies while soot levels were measured at higher frequiences  Used a development process for onboard monitoring of engine oil

Specific Gravity Measurement of ULSD

Nitrogen Generators  Contacted two companies  PerkinElmer has Nitrogen generator specific for OES-ICP  Contacted left message for our product specialist  Maxigas Nitrogen Generators  Contacted and they are putting together an economic analysis comparison to our N 2 tanks we are currently using  We need UHP Nitrogen i.e % so can’t buy a typical generator ~ increased cost

Air Generators  Contacted a few companies - Parker Balston, Clain Industrial  Waiting for reply and quotes  Generators able to produce extremely high purity, but limited to 150 psi  Compressors able to produce high pressures but would need an inline filter to able to produce high purity needed and would have to be gas driven

Thank You Questions???