Research on the Multi-Parameters Matching Control of the Cooling System for the Diesel Engine on the Numerical Simulation Technology

2012 ◽  
Vol 433-440 ◽  
pp. 2670-2679
Author(s):  
Zuo Yu Sun ◽  
Xiang Rong Li ◽  
Liang Ping Guo ◽  
Xue Yan Zhang
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Internal Combustion Engines ◽  
Cooling System ◽  
Engine Performance ◽  
Control Parameters ◽  
Engine Efficiency ◽  
Future Emission ◽  
Engine System ◽  
Relationship Of

For the growing importance of future emission restrictions and the expanding requirement for a better fuel economy, the internal combustion engines are forced to be improved for the high strengthening direction. However, the heat loads of the engine is increasing according to the increasing of engine speed and power density, hence, the cooling system is faced to more challenge. For the cooling system is one of the key system which has more effect on the engine efficiency, fuel economy, and exhaust heats; optimize the matching control cooling system becomes one of the key technology to improve the engine performance. In this paper, several overall schemes of the cooling system are analyzed and discussed, and then one design scheme is determined to the optimal for the current diesel engine. A whole engine system is established by the software GT-Power, and the cooling system in the engine system is established by GT-Cool based on the above optimal scheme. During the simulation, the influence on the heat dissipating capability brought by the control parameters, injection advance angle, power, and torque are investigated. At last, the requirement of the heat released under full conditions is analyzed, and the relationship of the fuel consumption and the control parameters is investigated.

Research on the Multi-Parameters Matching Control of the Cooling System for the Diesel Engine on the Numerical Simulation Technology

2011 ◽  
Vol 383-390 ◽  
pp. 1423-1430
Author(s):  
Zuo Yu Sun ◽  
Xiang Rong Li ◽  
Liang Ping Guo ◽  
Xue Yan Zhang
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Internal Combustion Engines ◽  
Cooling System ◽  
Engine Performance ◽  
Control Parameters ◽  
Engine Efficiency ◽  
Future Emission ◽  
Engine System ◽  
Relationship Of

For the growing importance of future emission restrictions and the expanding requirement for a better fuel economy, the internal combustion engines are forced to be improved for the high strengthening direction. However, the heat loads of the engine is increasing according to the increasing of engine speed and power density, hence, the cooling system is faced to more challenge. For the cooling system is one of the key system which has more effect on the engine efficiency, fuel economy, and exhaust heats; optimize the matching control cooling system becomes one of the key technology to improve the engine performance. In this paper, several overall schemes of the cooling system are analyzed and discussed, and then one design scheme is determined to the optimal for the current diesel engine. A whole engine system is established by the software GT-Power, and the cooling system in the engine system is established by GT-Cool based on the above optimal scheme. During the simulation, the influence on the heat dissipating capability brought by the control parameters, injection advance angle, power, and torque are investigated. At last, the requirement of the heat released under full conditions is analyzed, and the relationship of the fuel consumption and the control parameters is investigated.

Experimental Study of the Effects of Thermal Coating and Oxygenated Additives on Diesel Engine Performance and Pollutant Emissions

2008 ◽  
Author(s):  
P. Ramu ◽  
C. G. Saravanan
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engines ◽  
Cooling System ◽  
Engine Performance ◽  
Plasma Coating ◽  
Nox Emission ◽  
Pollutant Emissions ◽  
Exhaust Emission ◽  
Fuel Additive ◽  
Oxygenated Additives

In internal combustion engines, approximately one third of the total fuel input energy was converted into useful work and two-third has loss through exhaust gas and cooling system. Recently research has been focused on the reduction of diesel emitted pollutants due to strict emission regulations. In this study, the effect of ceramic coating to cylinder head, valves and piston crown on diesel engine performance and exhaust emission is examined. Ceramic layers were made by ZrO2-Al2O3 by using plasma coating method thickness to about 200 microns. The ceramic coated diesel engine was tested in a single cylinder, four stroke and water cooled DI diesel engine. Second part of the investigation was carried out with the fuel additive di iso propyl ether with thermal barrier coated diesel engine. The results indicate that there is reduction in fuel consumption, NOx emission and slightly increases the thermal efficiency of the engine. The combined effect of coating and fuel additive has significantly reduced the NOx emission.

Engine Performance and Emission Products of Pure Diesel and Multi-Feedstock Blended Biodiesel

2014 ◽  
Author(s):  
Kosgei Belion ◽  
Patrick F. Mensah ◽  
Stephen Akwaboa ◽  
Eyassu Woldesenbet ◽  
Michael Stubblefield ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engines ◽  
Renewable Energy Sources ◽  
Direct Injection ◽  
Engine Performance ◽  
Combustion Products ◽  
Performance And Emission ◽  
Engine Efficiency ◽  
Petroleum Resources ◽  
Carbon Dioxide Co2

Due to the ever-reducing conventional petroleum resources, considerable research on renewable energy sources such as biodiesel as a possible “greener” substitute fuel for internal combustion engines is needed. This study aims to compare the engine performance and emission results of various blends of pure diesel and a multi-feedstock (MFS) biodiesel when used in a naturally aspirated air-cooled, single-cylinder direct injection diesel engine. The engine was coupled to a dynamometer for torque measurement and output data transmitted to a PC for post-processing and displayed using customized programs in the computer. Engine combustion products — Nitrogen Oxide emissions (NOx), Hydrocarbons (HCs), Carbon monoxide (CO) and Carbon dioxide (CO2) — were measured and are presented alongside performance properties including brake-specific fuel consumption (BSFC), engine efficiency, torque and power. The experimental results show that, relative to diesel, biodiesel had approximately 3–24% decrease in torque, 4–11% decrease in power, 11–32% increase in BSFC and 8–29% general reduction in engine efficiency. However, biodiesel reduced the emissions of CO (1.5–6%), CO2 (13–34%) and unburned HCs (3–25%), while NOx emissions were increased significantly (12–48%). These results indicate that smaller percentages of biodiesel (20% or less) could be blended with pure diesel and used in a diesel engine, without any engine modifications, as an alternative and environmentally friendly fuel and without significantly compromising engine performance.

scholarly journals Virtual Calibration Method for Diesel Engine by Software in The Loop Techniques

2019 ◽  
Vol 16 (3) ◽  
pp. 6940-6957
Author(s):  
M. C. Cameretti ◽  
E. Landolfi ◽  
T. Tesone ◽  
A. Caraceni
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Engine Performance ◽  
Control Unit ◽  
Calibration Method ◽  
Pollutant Emissions ◽  
Engine Control ◽  
Start Of Injection ◽  
Definition Of ◽  
Valid Solution

The calibration of the engine control unit is increased for the development of the whole automotive system. The aim is to calibrate the electronic engine control to match the decreasing emission requirements and increasing fuel economy demands. The reduction of the number of tests on vehicles represents one of the most important requirements for increasing efficiency of the engine calibration process. However, the definition of the design of experiment is not straightforward because the data is not known beforehand, so it is difficult to process and analyse this data to achieve a globally valid model. To reduce time effort and costs the virtual calibration can be a valid solution. This procedure is called software in the loop (SIL) calibration able to develop a process to systematically identify the optimal balance of engine performance, emissions and fuel economy. In this work, a virtual calibration methodology is presented by using a two-stage model to get minimum exhaust emissions of a diesel engine. The data used are from a GT-Power model of a 3L supercharged diesel engine. The model is able to calculate the engine emissions for different engine parameters (such as the start of injection, EGR fraction and rail pressure) and from optimisation process, new injection start maps that reduce pollutant emissions are created.

Diesel engine performance at the intake of the hydrogen&air mixture

2021 ◽  
pp. 119-126
Author(s):  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Internal Combustion Engines ◽  
Fuel Efficiency ◽  
Experimental Studies ◽  
Motor Fuel ◽  
Engine Performance ◽  
Calorific Value ◽  
Hydrocarbon Emissions ◽  
The Difference

The prospects of using hydrogen as a motor fuel are noted. The problems that arise when converting a diesel engine to run on hydrogen are considered. The features of the organization of the working process of enginesrunning on hydrogen are analyzed. A method of supplying a hydrogenair mixture to a diesel engine is investigated. To supply hydrogen to the engine cylinders, it is proposed to use the Leader4M installation developed by TechnoHill Club LLC (Moscow). Experimental studies of a stationary diesel engine of the D245.12 S type with the supply of hydrogen at the inlet obtained at this installation are carried out. At the maximum power mode, the supply of hydrogen from this installation to the inlet of the diesel engine under study was 0.9 % by weight (taking into account the difference in the calorific value of oil diesel fuel and hydrogen). Such a supply of hydrogen in the specified mode made it possible to increase the fuel efficiency of the diesel engine and reduce the smoke content of exhaust gases, carbon monoxide and unburned hydrocarbon emissions. Keywords internal combustion engines; diesel engine; diesel fuel; hydrogen; hydrogenair mixture; fuel efficiency; exhaust gas toxicity indicators

THE STUDY OF THE EFFECT OF INTAKE VALVE TIMING ON ENGINE USING CYLINDER DEACTIVATION TECHNIQUE VIA SIMULATION

2015 ◽  
Vol 77 (8) ◽  
Author(s):  
S. F. Zainal Abidin ◽  
M. F. Muhamad Said ◽  
Z. Abdul Latiff ◽  
I. Zahari ◽  
M. Said
Keyword(s):  
Fuel Consumption ◽  
Internal Combustion Engines ◽  
Gasoline Engine ◽  
Engine Performance ◽  
Intake Valve ◽  
Cylinder Deactivation ◽  
Part Load ◽  
Engine Model ◽  
Engine Efficiency ◽  
Load Conditions

There are many technologies that being developed to increase the efficiency of internal combustion engines as well as reducing their fuel consumption.  In this paper, the main area of focus is on cylinder deactivation (CDA) technology. CDA is mostly being applied on multi cylinders engines. CDA has the advantage to improve fuel consumption by reducing pumping losses at part load engine conditions. Here, the application of CDA on 1.6L four cylinders gasoline engine is studied. One-dimensional (1D) engine modeling work is performed to investigate the effect of intake valve strategy on engine performance with CDA. 1D engine model is constructed based on the 1.6L actual engine geometries. The model is simulated at various engine speeds at full load conditions. The simulated results show that the constructed model is well correlated to measured data. This correlated model is then used to investigate the CDA application at part load conditions. Also, the effects on the in-cylinder combustion as well as pumping losses are presented. The study shows that the effect of intake valve strategy is very significant on engine performance. Pumping losses is found to be reduced, thus improve fuel consumption and engine efficiency.

Ceramics for Transportation Engines—Siren or Solution

1989 ◽  
Vol 42 (3) ◽  
pp. 53-69 ◽  
Author(s):  
Phillip S. Myers
Keyword(s):  
Fuel Economy ◽  
Molecular Level ◽  
Engine Performance ◽  
Volumetric Efficiency ◽  
New Materials ◽  
Heat Rejection ◽  
Properties Of Materials ◽  
Relationship Of ◽  
The Relationship

The major challenges facing transportation engines—shrinking resources, preserving the environment, and competition—are reviewed and the promise of new materials, specifically ceramics, in helping to meet these challenges is discussed. As a background for understanding the properties of materials, the structure of materials (first at the subatomic level, then the molecular level, and finally at the mircostructure level) is reviewed. The relationship of this structure to properties of ceramics judged to be of importance to engines is then presented. The effect of these properties on engine performance such as volumetric efficiency, fuel economy, heat rejection, inertia, friction, wear, fuel tolerance, and packaging are discussed. It is concluded that ceramics have special properties that, for selected applications, are already justifying their use in transportation engines. It is further concluded that these special application uses will continue to grow and precede general use of ceramics for in-cylinder insulation aimed at improving fuel economy.

Evaluation of Biodiesel Blends in a Single-Cylinder Medium-Speed Diesel Engine

2005 ◽  
Author(s):  
Fan Su ◽  
Malcolm Payne ◽  
Manuel Vazquez ◽  
Peter Eggleton ◽  
Alex Vincent
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Engine Performance ◽  
Injection Pressure ◽  
Frying Oil ◽  
Nox Emissions ◽  
Biodiesel Blends ◽  
Single Cylinder ◽  
Additional Information ◽  
Medium Speed

Biodiesel blends were prepared by mixing low sulphur #2 diesel and biodiesel of two origins (canola and frying oil) at two different concentrations (5% and 20%). They were tested in a single-cylinder four-stroke medium-speed diesel engine under three engine modes representing idle, about 50% power and full load conditions. Engine performance and emissions data obtained with the blends were compared to that of engine running with the #2 diesel. Results indicated that the 5% blends could maintain engine power and fuel economy. Frying oil based B5 provided more significant reductions on CO, THC and PM emissions and increments on NOx emissions as compared with that of the canola B5 fuel. The 20% blends reduce engine CO, PM and smoke emissions, but increase NOx emissions by up to approximately 8%. Engine cylinder pressure and injection pressure data was also collected to provide additional information for evaluation of fuel economy and emissions benefits of using the blends.

The Effects of Injection Parameters on the Performance of Common Rail Light Duty Engine Fueled with Palm Oil Biodiesel

2013 ◽  
Vol 465-466 ◽  
pp. 322-326 ◽  
Author(s):  
M. Adlan Abdullah ◽  
Farid Nasir Ani ◽  
Masjuki Hassan
Keyword(s):  
Diesel Engine ◽  
Palm Oil ◽  
Fuel Economy ◽  
Fuel Injection ◽  
Control Strategies ◽  
Engine Performance ◽  
Common Rail ◽  
Injection Timing ◽  
Injection Duration ◽  
Injection Parameters

It is in the interest of proponents of biodiesel to increase the utilization of the renewable fuel. The similarities of the methyl ester properties to diesel fuel and its miscibility proved to be an attractive advantage. It is however generally accepted that there are some performance and emissions deficit when a diesel engine is operated with biodiesel. There are research efforts to improve the diesel engine design to optimize the combustion with biodiesel. Since the common rail engines operates on flexible injection strategies, there exist an opportunity to improve engine performance and offset the fuel economy deficit by means of optimizing the engine control strategies. This approach may prove to be more practical and easily implemented. This study investigated the effects of the fuel injection parameters - rail pressure, injection duration and injection timing - on a common rail passenger car engine in terms of the fuel economy. Palm oil based biodiesel up to 30% blend in diesel was used in this study. The end of injection, (EOI), was found to be the most important parameter for affecting fuel consumption and thermal efficiency.

Impact of military JP-8 fuel on heavy-duty diesel engine performance and emissions

2007 ◽  
Vol 221 (8) ◽  
pp. 957-970 ◽  
Author(s):  
G Fernandes ◽  
J Fuschetto ◽  
Z Filipi ◽  
D Assanis ◽  
H McKee
Keyword(s):  
Particulate Matter ◽  
Diesel Engine ◽  
Fuel Economy ◽  
Engine Performance ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Performance And Emissions ◽  
Heavy Duty Diesel ◽  
Engine Performance And Emissions ◽  
The Impact

Investigating the impact of jet fuel on diesel engine performance and emissions is very important for military vehicles, due to the US Army Single Fuel Forward Policy mandating that deployed vehicles must refuel with aviation fuel JP-8. There is a known torque and fuel economy penalty associated with the operation of a diesel engine with JP-8 fuel, due to its lower density and viscosity. On the other hand, a few experimental studies have suggested that kerosene-based fuels have the potential for lowering exhaust emissions, especially particulate matter, compared to diesel fuel #2 (DF-2). However, studies so far have typically focused on quantifying the effects of simply replacing the regular DF-2 with JP-8, rather than fully investigating the reasons behind the observed differences. This research evaluates the effect of using JP-8 fuel in a heavy-duty diesel engine on fuel injection, combustion, performance, and emissions, and subsequently utilizes the obtained insight to propose changes to the engine calibration to mitigate the impact of the trade-offs. Experiments were carried out on a Detroit Diesel Corporation (DDC) S60 engine outfitted with exhaust gas recirculation (EGR). The results indicate that torque and fuel economy of diesel fuel can be matched, without smoke or NO x penalty, by increasing the duration of injection to compensate for the lower fuel density. The lower cetane number of JP-8 caused an increased ignition delay and increased premixed combustion, and their cumulative effect led to relatively unchanged combustion phasing. Under almost all conditions, JP-8 led to lower NO x and particulate matter (PM) emissions and shifted the NO x-PM trade-off favourably.

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