scholarly journals Determination of optimal control of a vessel diesel engine during non-stationary traffic regimes

2021 ◽  
Vol 6 (2 (114)) ◽  
pp. 136-146
Author(s):  
Anatolii Usov ◽  
Mykola Slobodianiuk ◽  
Mark Nikolskyi
Keyword(s):  
Optimal Control ◽  
High Pressure ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Average Velocity ◽  
Dynamic Programming Method ◽  
Control Law ◽  
Fuel System ◽  
Fuel Savings ◽  
The Law

The high pressure fuel system is the fundamental system that forms the indicator of the minimum fuel consumption per unit of the vessel's path. The calculation of the optimal control of the vessel complex with the main diesel engine is performed according to the criterion of the minimum fuel consumption per unit path at a given average velocity of the vessel. The propulsion of a vessel with a main diesel engine is described by equations. The equations contain a significant number of parameters, the reduction of which is performed by introducing dimensionless quantities, followed by bringing the equations into dimensionless forms. This made it possible to present a solution to the optimal control law for the main vessel diesel engine as part of the vessel complex. Optimal control of the vessel complex under stormy navigation conditions has been investigated. The calculations of the control law of the vessel complex, which ensure the movement of the vessel with the maximum average velocity in conditions of stormy navigation, are presented. It is determined that the established law of control of the vessel complex ensures the minimum fuel consumption per mile at a given average velocity of its movement. The influence of a high-pressure fuel system on the optimal control of a vessel diesel engine has been investigated. Thus, the calculated studies indicate that for all values of the parameters of the vessel complex according to the law of control of the fuel system Ф=а+b∙C2(τ), they give fuel savings up to 6% per unit of way in comparison with the law of control of the vessel complex Ф=а+b∙(c1(τ)/c2(τ)). The obtained ratios during modeling and optimal control of the main diesel engine of the vessel complex allow using the dynamic programming method to analyze the fuel consumption per unit path with optimal control compared to the corresponding constant control

scholarly journals Optimization of parameters for diesel shaft speed control system

2019 ◽  
Vol 140 ◽  
pp. 10003
Author(s):  
Vladimir Markov ◽  
Victor Furman ◽  
Sergey Plakhov ◽  
Bowen Sa
Keyword(s):  
High Pressure ◽  
Control System ◽  
Diesel Engine ◽  
High Speed ◽  
Experimental Studies ◽  
Pi Control ◽  
Control Law ◽  
Acceleration Process ◽  
Natural Oscillations ◽  
Fuel Supply

This work presents a fuel supply electronic control system (model ESUVT.01) developed by Dizelavtomatika (Saratov) for the D50 (6 CHN 31.8/33) locomotive diesel engine manufactured by Penzadieselmash. In this system, the fuel supply process is controlled by a high-speed electro-hydraulic valve installed in the high-pressure line of the fuel system. A set of electrically controlled high pressure fuel pumps (mode 4ETN.03) with electro-hydraulic valves for the diesel was manufactured. This system can also control the engine speed. It was noted that the best quality indicators of the speed regulating process are provided by the PID control law. It was shown that for a diesel with high inertia, it is advisable to use the PI control law. Experimental studies were conducted to assess the influence of structure and parameters of this control system on the dynamic qualities of this diesel engine. The object of bench testing was a 1-PDG4D-type diesel-generator from the above-mentioned diesel engine and MPT-84/39 traction generator. The dependences of the duration of the transient process, the overspeed and the period of natural oscillations of the regulated parameter on the PI controller parameters were obtained. The necessity of optimizing the coefficients of proportional (P) and integral (I) components of the PI control law was confirmed. A method for optimizing the coefficients of proportional and integral components of the PI control law was proposed. The optimized coefficients for the transient acceleration process of the diesel engine according to the locomotive characteristic were obtained.

PROCESSES IN FUEL SYSTEM OF DIESEL ENGINE AT SPEEDING UP OF THE HIGH PRESSURE FUEL PUMP

2014 ◽  
pp. 50-53 ◽  
Author(s):  
V. M. Slavutskij ◽  
E. A. Salykin ◽  
V. I. Lipilin ◽  
A. A. Skorobogatov
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Fuel System ◽  
Fuel Pump

The Influence of Injection Timing on Emissions Characteristics of a DI Diesel Engine Fuelled with Pistacia Chinensis Bunge Seed Biodiesel

2013 ◽  
Vol 634-638 ◽  
pp. 846-851
Author(s):  
Bin Xu ◽  
Li Luo ◽  
Jian Wu ◽  
Zhi Hao Ma
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Fuel Injection ◽  
High Load ◽  
Common Rail ◽  
Injection Timing ◽  
Brake Specific Fuel Consumption ◽  
Di Diesel Engine ◽  
Co Emission

The effect of various fuel injection advance angles on the emissions of an electronically controlled, high pressure, common rail, turbocharged GW4D20 diesel engine fuelled with different pistacia chinensis bunge seed biodiesel/diesel blends has been experimentally investigated. The results indicate that brake specific fuel consumption reduces with the increasing of fuel injection advance angle, and the BSFC of blends is higher than diesel. At 25% load, CO and THC are significantly reduced compared with higher load. The CO emission increases with the increment of fuel injection advance angle. At 75% load, the CO of B10 is lowest, B20 highest. At the same speed, NOx increases with increment of fuel injection advance angle for diesel and biodiesel blends dramatically. However, NOx of blends and diesel are deteriorated at high load, but there are no obvious differences among them.

Impacts of Continuously Regenerating Trap Technology on the Regulated Gas Emissions for a China-V Diesel Engine

2014 ◽  
Vol 488-489 ◽  
pp. 1031-1038
Author(s):  
Di Ming Lou ◽  
Shu Zhang ◽  
Jian Guang Cui
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Fuel Efficiency ◽  
Common Rail ◽  
Treatment System ◽  
Brake Specific Fuel Consumption ◽  
Test Results ◽  
Gas Emissions ◽  
Engine Emission

In this paper, the effects of continuously regenerating trap (CRT) after-treatment system on performance, fuel efficiency and regulated gas emissions from a turbocharged electronically controlled high pressure common rail diesel engine that meets China-V regulation have been investigated. The test results revealed that: the power and torque of diesel engine after the installation of CRT after-treatment system declines slightly, which is limited to 2%, and the rise in brake specific fuel consumption is around 2%. At the same time, the emission of CO decreased significantly by 86% to 94%, NOx also reduced slightly by 8% to 12%. However, the emission of HC dropped at part loads and rose at full load modes since the original engine emission is already quite low.

An experimentally comparison of effect of jet fuel (F-34) and F-54 fuel on fuel system components wear and fuel consumption of internal combustion diesel engine

2021 ◽  
Author(s):  
Şenol Durmuşoğlu ◽  
ERGİN KOSA
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Jet Fuel ◽  
Fuel System ◽  
System Components ◽  
The Military ◽  
And Storage ◽  
Engine Power

To logistically maintain a fuel supply is a certain issue for the military. NATO prefers single fuel concept to cancel out troubles in fuel transport and storage. To overcome this problem, kerosene-based F-34 jet fuel used in aviation has been chosen as a single fuel for a land-based vehicle in this research. In the study, feasibility of using F-34 jet fuel in a diesel engine has been investigated and the performance of the jet fuel has been compared with a conventional F-54 diesel fuel. The engine parameters of M52 such as power and torque character for both F-34 jet fuel and F-54 diesel fuel has been achieved. Also, the experiments on diesel engine including fuel consumption measurements under certain engine speeds and torques has been done for both fuels. Moreover, wear on fuel pumps of Magirus Unimog and M.A.N truck has been measured during long term tests operating with F-34 and F-54 fuels, respectively. It is observed that there is no certain difference in engine power and torque character between using F-34 and F-54 fuel.

COMPRESSIBILITY OF DIESEL FUEL IN HIGH PRESSURE PIPELINES ENGINE OF AUTOMOBILE

2015 ◽  
Vol 2 (1) ◽  
pp. 116-120 ◽  
Author(s):  
Данилов ◽  
Igor Danilov ◽  
Марусин ◽  
Aleksandr Marusin ◽  
Марусин ◽  
...  
Keyword(s):  
Mathematical Model ◽  
High Pressure ◽  
Diesel Engine ◽  
Differential Equations ◽  
Diesel Fuel ◽  
Dynamic Viscosity ◽  
Fuel System ◽  
Linear Differential ◽  
Compressibility Factors ◽  
The Mathematical Model

According to the mathematical model in the form of non-linear differential equations investigated the influence of compressibility factors and dynamic viscosity of diesel fuel by changing the pressure in the fuel system of a diesel engine with output.

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