Evaluation of lubricating-oil performance and emissions with lubricant formulations using ZDDP as the selected additive in GDI engines: a simultaneous study of VOCs and soot in oil

2021 ◽  
Author(s):  
Yoonkyung Kang
Keyword(s):  
Lubricating Oil ◽  
Performance And Emissions ◽  
Oil Performance ◽  
Simultaneous Study ◽  
Gdi Engines

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

Lubricating Oil Performance Assessment Using Signed Digraph and Matrix Approach

2005 ◽  
Author(s):  
B. C. Sharma ◽  
O. P. Gandhi
Keyword(s):  
Performance Assessment ◽  
Performance Index ◽  
Residual Life ◽  
Lubricating Oil ◽  
Matrix Approach ◽  
Performance Function ◽  
New Approach ◽  
Signed Digraph ◽  
Oil Performance ◽  
Digraph And Matrix Approach

In this paper, a new approach for lubricating oil performance is assessed as an index by considering its pertinent properties and their interaction, modeled in terms of lubricating oil performance signed digraph (LOPSD). Its equivalent matrix is defined to obtain lubricating oil performance function. Numerical value of the function is called lubricating oil performance index (LOPI) and is a measure of lubricating oil performance and its residual life at a given time. This is obtained by substituting results of the identified oil tests.

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.

scholarly journals INVESTIGATIONS ON CERAMIC COATED DIESEL ENGINE WITH BRASS PISTON MATERIAL

2014 ◽  
Vol 44 (1) ◽  
pp. 10-17
Author(s):  
S. Sunit Kumar Reddy ◽  
V. Pandurangadu
Keyword(s):  
Energy Demand ◽  
Elevated Temperatures ◽  
Environmental Concern ◽  
Combustion Efficiency ◽  
Lubricating Oil ◽  
Emission Characteristics ◽  
Combustion Chambers ◽  
Oil Deterioration ◽  
Performance And Emissions ◽  
Alternate Fuels

With the enormous energy demand and environmental concern the interest on the alternate fuels tothe diesel engines has been increased. Among all the fuels alcohols have received a considerable attentionbecause these are bio-based, renewable and are oxygenated. But due to its properties they require higheroperating temperatures in the combustion chambers. Hence in the present work a ceramic coated insulatedengine is developed by incorporating an air gap between piston skirt and crown for the study of alcoholsperformance and emission characteristics. The combustion efficiency depends on the mixture strength, pistonmaterial and turbulence in the chamber. So, in this work an attempt is made with brass piston and brass insertwith nine and twelve grooves. Among all the pistons tested the brass insert with nine grooves is best in terms ofengine performance and emissions. With the elevated temperatures the main problems faced are drop involumetric efficiency and lubricating oil deterioration and can be avoided with turbo compounding system andnew lubricants.DOI: http://dx.doi.org/10.3329/jme.v44i1.19492

Performance, emissions and wear characteristics of an indirect injection diesel engine using coconut oil blended fuel

2001 ◽  
Vol 215 (3) ◽  
pp. 393-404 ◽  
Author(s):  
H. H. Masjuki ◽  
M. A. Kalam ◽  
M. A. Maleque ◽  
A. Kubo ◽  
T. Nonaka
Keyword(s):  
Diesel Engine ◽  
Coconut Oil ◽  
Water Concentration ◽  
Lubricating Oil ◽  
Base Number ◽  
Wear Characteristics ◽  
Oil Blends ◽  
Performance And Emissions ◽  
Blended Fuel ◽  
Lubrication Characteristics

Dynamometer tests have been carried out to evaluate the performance, emissions and wear characteristics of an indirect injection diesel engine when fuelled by 10, 20, 30, 40 and 50 per cent blends of ordinary coconut oil (COCO) with ordinary diesel fuel (OD). The test was conducted for 100 h using each of the test fuels to monitor the effect of COCO blends on the wear and lubricating oil performance. OD fuel was also used for comparison purposes. The operating performance of the engine and the emission characteristics of exhaust gases were compared. The effect of blended fuel on the engin's wear and lubrication characteristics in terms of wear metal (Fe), water concentration, oxidation, viscosity, total base number and additive depletion was analysed. The performance and emissions characteristics results showed that 10-30 per cent coconut oil blends produced slightly higher performance in terms of brake power than OD. All the COCO blends produced lower exhaust emissions including polycyclic aromatic hydrocarbons and particulate matter. The wear and lubrication oil characteristics results showed that COCO blends up to 30 per cent produced similar results to OD. This programme will give useful information for further research and development in the future if COCO is used as an alternative to OD.

The Study of Temperature Distribution on A Cylinder of Suzuki 250gsx Engine Fueled with Gasoline Blends Using Finite Element Analysis

2014 ◽  
Vol 7 (2) ◽  
pp. 154-147
Author(s):  
Lutfi Y. Zeidan ◽  
Mohammed KH. Abbass ◽  
Ali Z. Asker
Keyword(s):  
Finite Element Analysis ◽  
Temperature Distribution ◽  
Thermal Load ◽  
Geometric Model ◽  
Temperature Fields ◽  
Lubricating Oil ◽  
Element Analysis ◽  
Engine Operation ◽  
Oil Performance ◽  
Si Engines

The alcohol–gasoline blend fuels nowadays are increasingly used instead  of gasoline in automobiles. In the present study, the temperature distribution within the cylinder of Suzuki 250Gsx motor was studied, taking in account the use of gasoline, E10-gasoline and E20-gasoline blends as a fuel, separately. The temperature fields are calculated  using ANSYS 11 software. The geometric model and dimensions of the cylinder was established using Solid work 2003 program then imported by ANSYS11. After applying the boundary conditions and taking the assumptions in account, the results illustrated that the  interchange of gasoline by E10-gasoline and or E20-gasoline blends has a variety of thermal  load on the cylinder. Where the temperature distributed decreasingly towards the axial and radial directions. In addition, the engine becomes colder as the ethanol percentage in the fuel been 20%. This may provide supporting information for new designs for using E10-gasoline  and or E20-gasoline blends on SI engines so that not to effect the engine operation and  lubricating oil performance

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