Experimental Research on Diesel Engine Friction and Wear Based on Ferrographic Analysis

2015 ◽  
Vol 778 ◽  
pp. 195-198 ◽  
Author(s):  
Hai Bing Xiao
Keyword(s):  
Diesel Engine ◽  
Wear Mechanism ◽  
Friction And Wear ◽  
Test Bench ◽  
Particle Morphology ◽  
Wear Particle ◽  
Engine Test Bench ◽  
Experimental Scheme ◽  
Wear Monitoring ◽  
Engine Friction

This paper deals with the study of diesel engine friction and wear. The friction and wear mechanism of diesel engine was studied and the wear factors of diesel engine friction and wear was analyzed. According to the diesel engine test bench, diesel engine experimental scheme of oil testing was designed during running-in stage. Studies have shown that wear particle morphology of diesel engine from ferrographic analysis can reflect the degree of wear and wear mechanism during running-in stage, wear particle changed during running-in stage. Ferrographic monitoring is an effective method for diesel engine friction and wear monitoring.

scholarly journals Assessment of an electrical coolant pump on a heavy-duty diesel engine

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Markus Kiesenhofer
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Carbon Dioxide Emissions ◽  
Test Bench ◽  
Engine Test ◽  
The European Union ◽  
Engine Test Bench ◽  
Commercial Vehicles ◽  
Coolant Pump ◽  
Vehicle Class

AbstractHybridization of the drive train in commercial vehicles is a key solution toward meeting the strict future requirements to reduce carbon dioxide emissions within the European Union. In order to decrease fleet consumption a large number of different hybrid systems are already available in series in the passenger car sector. Due to the cheap and powerful 48 volt hybrid components and the lower hazard potential compared to high voltage, future commercial vehicles could also benefit from the 48V technology and contribute to lower fleet fuel consumption. Therefore, a complete 48V mild hybrid system was built on the diesel engine test bench as part of a research project. This paper highlights the utilization of a powerful 48V-motor to propel the coolant pump on a diesel engine of the 13-L commercial vehicle class. Three different drive variants of the coolant pump were implemented and measured on the diesel engine test bench. MATLAB®/Simulink®-simulations were conducted to assess the possible fuel savings in three different driving cycles. This paper provides a summary and interpretation of the measurement and simulation results. The simulation studies predict a decrease of fuel consumption of up to 0.94%. Furthermore, the additional advantages of electrified coolant pumps based on 48V are discussed.

scholarly journals Investigation of diesel engine for low exhaust emissions with different combustion chambers

2015 ◽  
Vol 19 (6) ◽  
pp. 2013-2024 ◽  
Author(s):  
Pundlik Ghodke ◽  
Jiwak Suryawanshi
Keyword(s):  
Diesel Engine ◽  
Combustion Chamber ◽  
Compression Ratio ◽  
Test Bench ◽  
Low Cost ◽  
Engine Test ◽  
Engine Test Bench ◽  
Combustion Chambers ◽  
Full Load ◽  
Base Engine

Upcoming stringent Euro-6 emission regulations for passenger vehicle better fuel economy, low cost are the key challenges for engine development. In this paper, 2.2L, multi cylinder diesel engine have been tested for four different piston bowls designed for compression ratio of CR 15.5 to improve in cylinder performance and reduce emissions. These combustion chambers were verified in CFD at two full load points. 14 mode points have been derived using vehicle model run in AVL CRUISE software as per NEDC cycle based on time weightage factor. Base engine with compression ratio CR16.5 for full load performance and 14-mode points on Engine test bench was taken as reference for comparison. The bowl with flat face on bottom corner has shown reduction 25% and 12 % NOx emissions at 1500 and 3750 rpm full load points at same level of Soot emissions. Three piston bowls were tested for full load performance and 14 mode points on engine test bench and combustion chamber ?C? has shown improvement in thermal efficiency by 0.8%. Combinations of cooled EGR and combustion chamber ?C? with geometrical changes in engine have reduced exhaust NOx, soot and CO emissions by 22%, 9 % and 64 % as compared to base engine at 14 mode points on engine test bench.

scholarly journals Implementation of a 3.5 kW resistive load bank for a single-cylinder diesel engine test bench

2020 ◽  
Vol 25 (4) ◽  
pp. 598-505
Author(s):  
Jorge Eliécer Duarte Forero ◽  
Miguel Celis Quintero ◽  
Gabriel Hernandez Acosta
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engines ◽  
Test Bench ◽  
Thermal Design ◽  
Power Measurement ◽  
Resistive Load ◽  
Engine Test ◽  
Engine Test Bench ◽  
Element Analysis ◽  
Single Cylinder

This article presents the implementation of a 3.5 kW resistive load bank applied to a four-stroke single-cylinder diesel engine test bench that operates with an alternator.   With this experimental test bench, it is possible to perform mechanical, thermodynamic, and polluting emissions studies in compression-ignited or induced internal combustion engines.   Applying the quantitative research methodology, the design of the electric charging system is carried out. Power control circuits and safety elements are designed for the load back. CAD software is used to design the structure and casing considering anthropometric measurements. Also, finite element analysis (FEA) is incorporated to verify the structural and thermal design criteria.   he implementation of an electrical and instrumentation acceleration system for sensing power and torque in low-displacement engines showed a measurement error of less than 1%. Similarly, the FEA allowed to quantify the maximum efforts and guarantee a safety factor above 5.   With the characterization of the implemented sensors, a correlation coefficient of up to 99.97% was achieved. The power measurement displayed an error lower than 3%, which leads to a high characterization capacity of any thermal machine with equal power or less than the designed one.

Experimental Study of a Diesel Engine Performance Running on Waste Vegetable Oil Biodiesel Blend

2012 ◽  
Vol 134 (3) ◽  
Author(s):  
Boubahri Chokri ◽  
Ennetta Ridha ◽  
Said Rachid ◽  
Bessrour Jamel
Keyword(s):  
Diesel Engine ◽  
Chemical Process ◽  
Test Bench ◽  
Engine Performance ◽  
Engine Test Bench ◽  
Frying Oils ◽  
Waste Vegetable Oil ◽  
Environmental Friendly ◽  
Waste Oils ◽  
Biodiesel Blend

The main purpose of this research is to study the effect of various blends of an environmental friendly alternative fuel “methyl ester” on the performance of a heavy diesel engine. The biodiesel was obtained from a chemical process: the transesterification of waste oils (frying oils). Tests were conducted on an engine test bench in accordance to DIN 2020 standards. Results obtained demonstrate that the biodiesel gives very interesting ecological advantages but engine performance was reduced slightly comparatively to those obtained with a pure diesel fuel. We have noted about 5% decrease in power and torque and about 2% in Nox emission for every 10% of biodiesel blend added comparatively to pure diesel. However, the use of biodiesel has slightly increased specific fuel consumption (about 6% for every 10% of biodiesel blend added).

REAL-TIME NONLINEAR INDIVIDUAL CYLINDER AIR FUEL RATIO OBSERVER ON A DIESEL ENGINE TEST BENCH

2005 ◽  
Vol 38 (1) ◽  
pp. 194-199 ◽  
Author(s):  
Jonathan Chauvin ◽  
Philippe Moulin ◽  
Gilles Corde ◽  
Nicolas Petit ◽  
Pierre Rouchon
Keyword(s):  
Diesel Engine ◽  
Real Time ◽  
Test Bench ◽  
Engine Test ◽  
Engine Test Bench ◽  
Fuel Ratio

Study on the Effects of Coal Base Fuels on Diesel Engine Performance

2014 ◽  
Vol 1070-1072 ◽  
pp. 1840-1843
Author(s):  
Xu Dong Wang ◽  
Chun Hua Xiong ◽  
Chang Bo Lu ◽  
Feng Wang ◽  
Gang Wang ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Consumption Rate ◽  
Test Bench ◽  
Engine Performance ◽  
Volume Ratio ◽  
Physicochemical Characteristics ◽  
Exhaust Emission ◽  
Engine Test Bench ◽  
Power Performance ◽  
Fuel Consumption Rate

This paper addresses the physicochemical characteristics of petroleum based diesel, coal based diesel and blended diesel (volume ratio of petroleum based diesel and coal based diesel 1:1), the power performance, fuel economy and exhaust emission with the three kinds of fuel were investigated on an engine test bench. The results show that: without any change in the diesel engine, when the engine fueled with coal based diesel power slightly upgraded, fuel consumption rate change little, exhaust smoke decrease obviously compared with using petroleum based diesel, that means coal based diesel is a kind of low-pollution alternative fuel for diesel engine.

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