scholarly journals Influence of Maintenance Intervals on Performance and Emissions of a 192 kWel Biogas Gas Otto CHP Unit and Results of Lubricating Oil Quality Tests—Outcome from a Continuous Two-Year Measuring Campaign

Energies ◽  
2013 ◽  
Vol 6 (6) ◽  
pp. 2819-2839 ◽  
Author(s):  
Hans-Joachim Naegele ◽  
Bernd Thomas ◽  
Christine Schrade ◽  
Andreas Lemmer ◽  
Hans Oechsner ◽  
...  
Keyword(s):  
Oil Quality ◽  
Lubricating Oil ◽  
Performance And Emissions ◽  
Measuring Campaign

Research on a Scheme of Real-Time Measuring of Lubrication Oil Quantity in an Aero-Engine Tank

2011 ◽  
Vol 317-319 ◽  
pp. 2079-2084
Author(s):  
Rang Shu Xu ◽  
Xiao Wen Chen ◽  
Jian Ming Yang ◽  
Zhi Wei Dong ◽  
Min Li Bai
Keyword(s):  
Interpolation Method ◽  
Oil Quality ◽  
Phase Interface ◽  
Measuring System ◽  
Dead Volume ◽  
Lubricating Oil ◽  
Digital Measurement ◽  
Vof Model ◽  
Data Tables ◽  
Height Data

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.

scholarly journals Improvements in Lubricating Oil Quality by an On Line Oil Recycler for a Refuse Truck Using in Service Testing

2001 ◽  
Author(s):  
Gordon E. Andrews ◽  
Hu Li ◽  
M. H. Jones ◽  
J. Hall ◽  
A. A. Rahman ◽  
...  
Keyword(s):  
Oil Quality ◽  
Lubricating Oil ◽  
Service Testing ◽  
On Line

Wear, Performance and Emissions of a Two-Stroke Engine Running on Palm Oil Methyl Ester Blended Lubricant

1996 ◽  
Vol 210 (4) ◽  
pp. 213-219 ◽  
Author(s):  
H H Masjuki ◽  
M A Maleque
Keyword(s):  
Methyl Ester ◽  
Palm Oil ◽  
Gasoline Engine ◽  
Engine Performance ◽  
Lubricating Oil ◽  
Wear Behaviour ◽  
Exhaust Gas ◽  
Piston Rings ◽  
Gasoline Engines ◽  
Performance And Emissions

Results of study on wear of piston rings, engine performance and exhaust gas emissions of palm oil methyl ester (POME) as a lubricating oil additive in a two-stroke gasoline engine test are presented. Piston ring wear behaviour was monitored as a function of running time. The power output and brake specific fuel consumption of the engine were measured at different speeds. Varnish/lacquer and carbon deposit on the spark plug electrode, cylinder and piston heads as well as exhaust gas (CO2, CO and O2) emission were measured. For comparison purposes, two types of commercial lubricating oils, viz. oil A and oil B were used. The wear resistance of piston rings with POME blending lubrication was found to be greater than the pure commercial oil lubrication. Other results indicate that the POME acts as an additive which improves the engine performance and exhaust emissions of two-stroke gasoline engines.

scholarly journals Engine Performance and Emissions Analysis in a Cold, Intermediate and Hot Start Diesel Engine

2020 ◽  
Vol 10 (11) ◽  
pp. 3839 ◽  
Author(s):  
Faisal Lodi ◽  
Ali Zare ◽  
Priyanka Arora ◽  
Svetlana Stevanovic ◽  
Mohammad Jafari ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Cold Start ◽  
Lubricating Oil ◽  
Coolant Temperature ◽  
Effective Pressure ◽  
Warm Up ◽  
Hot Start ◽  
Depth Analysis ◽  
Performance And Emissions ◽  
The Impact

Presented in this paper is an in-depth analysis of the impact of engine start during various stages of engine warm up (cold, intermediate, and hot start stages) on the performance and emissions of a heavy-duty diesel engine. The experiments were performed at constant engine speeds of 1500 and 2000 rpm on a custom designed drive cycle. The intermediate start stage was found to be longer than the cold start stage. The oil warm up lagged the coolant warm up by approximately 10 °C. During the cold start stage, as the coolant temperature increased from ~25 to 60 °C, the brake specific fuel consumption (BSFC) decreased by approximately 2% to 10%. In the intermediate start stage, as the coolant temperature reached 70 °C and the injection retarded, the indicated mean effective pressure (IMEP) and the brake mean effective pressure (BMEP) decreased by approximately 2% to 3%, while the friction mean effective pressure (FMEP) decreased by approximately 60%. In this stage, the NOx emissions decreased by approximately 25% to 45%, while the HC emissions increased by approximately 12% to 18%. The normalised FMEP showed that higher energy losses at lower loads were most likely contributing to the heating of the lubricating oil.

Oil Quality with Oil Age in an IDI Diesel Passenger Car Using an On Line Lubricating Oil Recycler Under Real World Driving

2001 ◽  
Author(s):  
Gordon E. Andrews ◽  
Jie Xu ◽  
M. H. Jones ◽  
J. Hall ◽  
A. A. Rahman ◽  
...  
Keyword(s):  
Real World ◽  
Oil Quality ◽  
Lubricating Oil ◽  
Passenger Car ◽  
On Line

State Analysis of Mine Hoist

2012 ◽  
Vol 201-202 ◽  
pp. 139-142
Author(s):  
Yong Sheng Zhang ◽  
Yu Jing Jia ◽  
Guang Zhen Cheng
Keyword(s):  
Oil Quality ◽  
Time Domain Analysis ◽  
Vibration Sensor ◽  
Vibration Monitoring ◽  
Lubricating Oil ◽  
Vibration Velocity ◽  
Quality Change ◽  
Speed Reducer ◽  
The Time Domain ◽  
Mine Hoist

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.

Using Ensembles of Regression Trees to Monitor Lubricating Oil Quality

2011 ◽  
pp. 199-206 ◽  
Author(s):  
Andres Bustillo ◽  
Alberto Villar ◽  
Eneko Gorritxategi ◽  
Susana Ferreiro ◽  
Juan J. Rodríguez
Keyword(s):  
Oil Quality ◽  
Regression Trees ◽  
Lubricating Oil

Spectroscopic Measurement of Used Lubricating Oil Quality

1989 ◽  
Vol 43 (1) ◽  
pp. 55-60 ◽  
Author(s):  
A. D. Stuart ◽  
S. M. Trotman ◽  
K. J. Doolan ◽  
P. M. Fredericks
Keyword(s):  
Near Infrared ◽  
Oil Quality ◽  
Infrared Region ◽  
Water Levels ◽  
Lubricating Oil ◽  
Base Number ◽  
Spectroscopic Techniques ◽  
Mid Infrared ◽  
Used Oil ◽  
Total Base

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.

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