The Influence of Lubricating Oil Age on Oil Quality and Emissions from IDI Passenger Car Diesels

Author(s):  
Gordon E. Andrews ◽  
Suhair M. Abdelhalim ◽  
Hu Li
2001 ◽  
Author(s):  
Gordon E. Andrews ◽  
Jie Xu ◽  
M. H. Jones ◽  
J. Hall ◽  
A. A. Rahman ◽  
...  

Energies ◽  
2013 ◽  
Vol 6 (6) ◽  
pp. 2819-2839 ◽  
Author(s):  
Hans-Joachim Naegele ◽  
Bernd Thomas ◽  
Christine Schrade ◽  
Andreas Lemmer ◽  
Hans Oechsner ◽  
...  

2011 ◽  
Vol 317-319 ◽  
pp. 2079-2084
Author(s):  
Rang Shu Xu ◽  
Xiao Wen Chen ◽  
Jian Ming Yang ◽  
Zhi Wei Dong ◽  
Min Li Bai

The composition and principles of the digital measuring system was investigated on the basis of digital oil measuring method. Fly attitude-oil quality - measuring height data tables were generated by using UG software calculation of oil quantity characteristics. Then the oil surface angle under different fly attitude and overload was calculated through coordinate transformation method. Finally the amount of oil was calculated by three-dimensional liner interpolation method. Meanwhile, the free surface movement of lubricating oil tank under different overload was simulated through VOF numerical model. The results showed that using UG software to build model and generate fly attitude-oil quantity-measuring height data tables is accurate and useful. The VOF model method is a complement to digital measurement, which can track the phase interface of continuum, analyze the movement of oil qualitatively and calculate the dead volume of digital method.


2001 ◽  
Author(s):  
Gordon E. Andrews ◽  
Hu Li ◽  
M. H. Jones ◽  
J. Hall ◽  
A. A. Rahman ◽  
...  

2012 ◽  
Vol 201-202 ◽  
pp. 139-142
Author(s):  
Yong Sheng Zhang ◽  
Yu Jing Jia ◽  
Guang Zhen Cheng

The objective is to provide a method about equipment condition monitoring and fault diagnosis. The method could indicate equipment operating parameters, working conditions and specific status. We used CDMS system monitoring mine hoist key parts of the vibration velocity, introduces the vibration sensor reasonable decorate, in the time domain analysis of speed amplitude values, in frequency domain speed spectrum analysis, according to the monitoring signal analysis processing results, give the diagnostic conclusions that the gear of second shaft have uniform force, and a little corrosion, peel and eccentric, puts forward that we should strengthen vibration monitoring about the second shaft of speed reducer, Observe reducer wear trend using the iron spectral analysis, Supervise lubricating oil quality, change oil when necessary.


Author(s):  
Andres Bustillo ◽  
Alberto Villar ◽  
Eneko Gorritxategi ◽  
Susana Ferreiro ◽  
Juan J. Rodríguez

1989 ◽  
Vol 43 (1) ◽  
pp. 55-60 ◽  
Author(s):  
A. D. Stuart ◽  
S. M. Trotman ◽  
K. J. Doolan ◽  
P. M. Fredericks

Used lubricating oils have been examined by a number of spectroscopic techniques to assess whether it might be possible to improve turn-around time for laboratory analyses or to develop a simple oil quality sensor which could be used in a service workshop. Investigation shows that the development of an oil quality sensor based on discrete wavenumber measurements in the mid-infrared region would not be warranted, but heptane-insolubles can be estimated from a single measurement in the near-infrared region, and this could form the basis of a simple sensor. Considerable information about the quality of a used oil is available through a thorough examination of its mid-infrared spectrum. Use of the computer program CIRCOM, which employs factor analysis followed by multiple linear regression, allowed useful correlations to be obtained for n-heptane—insolubles level and viscosity and total base number of the oil sample. This supplements and extends the previously described methods for obtaining information such as fuel and water levels by IR analysis.


2018 ◽  
Vol 154 ◽  
pp. 01018
Author(s):  
Riyanto ◽  
Tri Astuti Agussetianingrum ◽  
Dwi Putri Juliantydjawi

The effect of treatment with activated carbon to the metal content in the reuse of lubricating oil waste has been done. Waste lubricating oil has treatment using 1-butanol and KOH as a solvent and coagulant. The research studies of the effect of activated carbon to the metals are Pb, Cr, Ca, Mg and Fe in lubrication oil waste after treatment. Waste lubricating oil treatment by the adsorption method using activated carbon with various weight are 0,5; 1,0; and 1,5 g. The metal concentrate was analysis after and before treatment using Atomic Adsorption Spectrophotometer (AAS). The analysis result shown the best weight of activated carbon for decreased of metals contains in lubricating oil waste is 1.5 g. Metal concentration of Pb, Cr, Ca, Mg and Fe in lubricating oil waste before treatment are 181.0002, 10.7198, 1019.0220, 325.8788 and 365.1329 mg/L (ppm), respectively. Metal concentration of Pb, Cr, Ca, Mg and Fe in lubricating oil waste after treatment are 47.5670, not detection, 2.6871, 44.3251 and 222.043 mg/L (ppm), respectively. Base on ASTM D5185 standard shown the Ca, Mg and Cr metals concentration according to the new lubricating oil quality standard. Pb and Fe metals concentration after process are still above the new lubricating oil quality standard. As a conclusion is activated carbon is a good material for treatment of waste lubricating oil, especially to reduce metal concentrations.


Author(s):  
Michael Seibert ◽  
Terry DuBois ◽  
Richard Scenna ◽  
Tony Thampan

Testing was performed on commercially available 1 kW spark ignition generators that were modified to operate on JP-8 and other heavy fuels. This approach is motivated by the US Military mandate that only one fuel, JP-8, be taken to the battlefield, and the increased electrical demands at the squad and platoon level. Small units require a portable power source that can meet their energy demands, particularly battery charging. While diesel engines can operate on JP-8, their weight limits their mobility at the platoon level. Spark ignition engines have better power density at the 1 kW level, but must be modified to burn logistically available fuel. Multiple approaches have been pursued to enable these engines to operate on JP-8. In the present study, the longer term effects of three approaches are examined and compared to an unmodified spark ignition generator operating on gasoline. These approaches include A) chemically altering the fuel as it flows to the engine to create a higher octane mixture, B) modifying the carburetor and using ether starter fluid to preheat the cylinder, and C) electrically heating the cylinder while modifying the fuel system for direct injection. The different generators were characterized by oil sampling at 15 hour intervals. Oil testing included flash point, viscosity, wear elements, and additives. Oil quality and emissions vary with load. Different approaches to conversion perform better at different loads. It was determined that multiple start-stop cycles with no load resulted in fuel dilution of the lubricating oil in several of the modified engines. Response varied with some of the modified engines maintaining low fuel dilution similar to the gasoline fueled engine while others indicated 15–20% fuel in the oil. During operation at full load, the modified JP-8 burning generators showed 3–5% fuel dilution in the oil while the unmodified gasoline generator was less than 1%. These experiments illustrate the challenges in developing portable, reliable JP-8 burning power sources. While further research and development is needed in each approach, it was shown that converted spark ignition engines are a promising path to portable logistic power. Oil analysis was shown to identify future research and development efforts to improve this technology.


2000 ◽  
Author(s):  
Gordon E. Andrews ◽  
Hu Li ◽  
M. H. Jones ◽  
J. Hall ◽  
A. A. Rahman ◽  
...  

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