scholarly journals Study of diesel operation using diesel fuel and methyl fluid

2020 ◽  
Vol 1515 ◽  
pp. 042052
Author(s):  
A A Anfilatov ◽  
A N Chuvashev
Keyword(s):  
Diesel Fuel ◽  
Diesel Operation

Investigations on Low Heat Rejection Diesel Engine With Crude Jatropha Oil as an Alternate Fuel

2002 ◽  
Author(s):  
M. V. S. Murali Krishna ◽  
C. M. Vara Prasad ◽  
Tandur Rajashekar ◽  
Supriya Tiwari ◽  
T. Sujani
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Injection Pressure ◽  
High Viscosity ◽  
Injection Timing ◽  
Jatropha Oil ◽  
Heat Rejection ◽  
Reduction Of Nox ◽  
Conventional Diesel Fuel ◽  
Diesel Operation

Jatropha oil, a non-edible vegetable oil shows a greater potential for replacing conventional diesel fuel quite effectively, as its properties are compatible to that of diesel fuel. But low volatility and high viscosity of jatropha oil call for hot combustion chamber, which is provided by a low heat rejection diesel engine with threaded air gap piston and liner with superni-90 inserts. The performance of the engine with jatropha oil is obtained with different versions of the engine such as conventional engine and insulated engine at normal and preheat condition of the oil, with varying injection pressure and timing and compared to the engine with pure diesel operation at recommended injection pressure and timing. Increase of thermal efficiency of 18% and reduction of NOx levels by 5% are observed at optimized injection timing and at higher injection pressure with insulated engine at preheat condition of jatropha oil in comparison with pure diesel operation on conventional engine.

scholarly journals Development of a Generic Dual Fuel ECU for Common Rail Diesel Engine Control

2021 ◽  
Author(s):  
◽  
Luke James Frogley
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Common Rail ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Operation

<p>Rising costs of diesel fuel has led to an increased interest in dual fuel diesel engine conversion, which can offset diesel consumption though the simultaneous combustion of a secondary gaseous fuel. This system offers benefits both environmentally and financially in an increasingly energy-conscious society. Dual fuel engine conversions have previously been fitted to mechanical injection systems, requiring physical modification of the fuel pump. The aim of this work is to develop a novel electronic dual fuel control system that may be installed on any modern diesel engine using common rail fuel injection with solenoid injector valves, eliminating the need for mechanical modification of the diesel fuel system.  The dual fuel electronic control unit developed replaces up to 90 percent of the diesel fuel required with cleaner-burning and cheaper compressed natural gas, providing the same power output with lower greenhouse gas emissions than pure diesel. The dual fuel system developed controls the flow of diesel, gas, air, and engine timing to ensure combustion is optimised to maintain a specific torque at a given speed and demand. During controlled experimental analysis, the dual fuel system exceeded the target substitution rate of 90 precent, with a peak diesel substitution achieved of 97 percent, whilst maintaining the same torque performance of the engine under diesel operation.</p>

scholarly journals Methodological basis for the conversion of transport diesel engines of transport diesel engines to gas-diesel operation

2021 ◽  
Vol 134 (1) ◽  
pp. 68-78
Author(s):  
G.B. Varlamov ◽  
◽  
S.A. Glazyrin ◽  
P.A. Barabash ◽  
V.G. Petrenko ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Diesel Engines ◽  
Environmental Safety ◽  
Compressed Natural Gas ◽  
Average Temperature ◽  
Advantages And Disadvantages ◽  
Motor Fuels ◽  
Diesel Cycle ◽  
Gas Fuel ◽  
Diesel Operation

The expediency of the search, development and use of alternative environmentally friendly motor fuels is scientifically substantiated, the main of which is the use of gas fuel, which is much more efficient than diesel fuel in terms of overall environmental safety. The relevance of the research carried out and the developments proposed in this article will make it possible to realize the fundamental complex advantages of the ecological and operational nature of the use of the gas-diesel cycle of the ICE operation. This is in line with the Paris Protocol on a climate to reduce greenhouse gas emissions to keep the global average temperature rising. The paper describes the main features and methods of converting diesel engines to their compressed natural gas power supply. The advantages and disadvantages of all methods of implementing the gas-diesel cycle on existing diesel installations of low and high power are analyzed in detail. The main operations and changes in operating parameters for each method of implementing the gas-diesel cycle on operating diesel engines are also described. The use of a mixed quantitative and qualitative control of the supply of compressed gas and diesel fuel for various loads of a diesel engine operating on a gas-diesel cycle has been scientifically substantiated. The systematization is carried out and the comparative characteristics of liquid and gas motor fuels, which can be used for the implementation of the gas-diesel cycle in diesel engines, are presented in tabular form, general conclusions are described.

Field Test of a Cooper LSVB-20GDT Engine Operating on Biodiesel

2009 ◽  
Author(s):  
Greg Beshouri ◽  
Henry Lam
Keyword(s):  
Diesel Fuel ◽  
Fuel Injection ◽  
Engine Performance ◽  
Engine Emissions ◽  
Single Cylinder ◽  
Energy Center ◽  
The Difference ◽  
Engine Testing ◽  
The Impact ◽  
Diesel Operation

NRG Energy Center Paxton LLC (NRG-ECP) operates two Cooper LSVB-20GDT gas-diesel engines at a combined heat and power facility in Harrisburg, PA. NRG-ECP commissioned Advanced Engine Technologies Corporation (AETC) to conduct a literature review on the impacts of operating these engines on Biodiesel. Based on the somewhat favorable results of the review, NRG-ECP with support from AETC performed single cylinder and then full engine testing on one engine to assess the impact of Biodiesel operation on engine performance, emissions and operability as an alternative to full diesel operation. The results showed the engine exhibited no major differences in combustion performance or engine operability when running on Biodiesel in comparison to standard diesel fuel. During single cylinder testing the switch between diesel and Biodiesel was virtually undetectable. In the full engine Biodiesel test the unit started, idled, synchronized and loaded identical to diesel fuel. From a combustion perspective, the differences in Biodiesel vs. diesel operation are primarily attributable to the difference in air/fuel ratio due to the different fuel compositions. Fuel injection performance did not appear to change significantly or impact engine emissions.

scholarly journals THE EFFECT OF THE BIOFUEL PROPERTIES ON THE AUTOIGNITION DELAY IN A DIESE ENGINE

2014 ◽  
Vol 46 (1) ◽  
pp. 51-65
Author(s):  
Marius Mažeika ◽  
Gvidonas Labeckas ◽  
Oleg Klyus ◽  
Irena Kanapkienė
Keyword(s):  
Diesel Fuel ◽  
Cetane Number ◽  
Chemical Properties ◽  
Test Results ◽  
Start Of Injection ◽  
Biodiesel Blend ◽  
Physical And Chemical ◽  
Autoignition Delay ◽  
Diesel Operation ◽  
And Chemical Properties

The article presents the test results of a four-stroke, four-cylinder, naturally aspirated, DI 60 kW diesel engine operating on diesel fuel (DF) and its 5 vol% (E5), 10 vol% (E10), and 15 vol% (E15) blends with anhydrous (99.8%) ethanol (E). An additional ethanol–diesel–biodiesel blend E15B was prepared by adding the 15 vol% of ethanol and 5 vol% of biodiesel (B) to diesel fuel (80 vol%). The purpose of the research was to examine the influence of the ethanol and RME addition to diesel fuel on the start of injection and autoignition delay. The widely differing physical and chemical properties of the biofuel blends along with engine load and speed modes were taken into account to provide sound analysis of the experimental test results. Studies showed that the density of biofuel blends E5, E10, E15 and E15B was 0.33%, 0.65%, 0.95% and 0.56% lower at the temperature of 40 °C than the corresponding value (0.828 kg/m3) of diesel fuel. Kinematic viscosity of biofuel blends E5, E10, E15 and E15B also decreased by 7.8%, 11.0%, 13.0% and 10.8% at the temperature of 40 °C and the cetane number was 3%, 9%, 14% and 12% lower, respectively, compared to commercial diesel fuel. The use of biofuel blends E15 and E15B the autoignition delay increased by 4.4% and 9.5% compared to normal diesel operation at full pe = 0.67 MPa (100%) load and 1400 rpm speed at which maximum torque occurs.

scholarly journals Procedure for Haul Truck On-Board LNG Fuel Systems Performance Evaluation

2019 ◽  
Vol 105 ◽  
pp. 03019 ◽  
Author(s):  
Georgiy Dubov ◽  
Dmitriy Trukhmanov ◽  
Iliya Kuznetsov ◽  
Sergey Nokhrin ◽  
Aleksey Sergel
Keyword(s):  
Natural Gas ◽  
Diesel Fuel ◽  
Motor Fuel ◽  
Liquefied Natural Gas ◽  
Time To Failure ◽  
Fuel Gas ◽  
Lng Fuel ◽  
Haul Truck ◽  
High Payload ◽  
Diesel Operation

The state-of-the-art of the advantages of using liquefied natural gas as a motor fuel for haul trucks instead of oil motor fuel is considered. It is noted that the energy intensity of the process of rock mass hauling by dual-fuel (gas-diesel) haul trucks is less than that of haul trucks running on diesel only. It is argued that the most promising in relation to heavy-duty mining trucks, is the conversion of diesel engines to gas-diesel operation. The universal integrated procedure for evaluating currently used haul truck on-board cryogenic fuel systems performance is presented. The method of evaluating the “rate of replacement” of diesel fuel with liquefied natural gas, when operating haul trucks equipped with on-board cryogenic fuel systems, is described in detail. The possible sequence of per-cycle, per-ingle-shift and per-day monitoring of the rate of diesel fuel replacement with liquefied natural gas is presented. The method for evaluating the economic efficiency of the operation of high-payload-capacity haul trucks conversed to gas-diesel operation is given, which allows, among other things, determining the actual service life of on-board cryogenic fuel systems and their time to failure.

scholarly journals Development of a Generic Dual Fuel ECU for Common Rail Diesel Engine Control

2021 ◽  
Author(s):  
◽  
Luke James Frogley
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Common Rail ◽  
Dual Fuel ◽  
Fuel System ◽  
Compressed Natural Gas ◽  
Diesel Operation

<p>Rising costs of diesel fuel has led to an increased interest in dual fuel diesel engine conversion, which can offset diesel consumption though the simultaneous combustion of a secondary gaseous fuel. This system offers benefits both environmentally and financially in an increasingly energy-conscious society. Dual fuel engine conversions have previously been fitted to mechanical injection systems, requiring physical modification of the fuel pump. The aim of this work is to develop a novel electronic dual fuel control system that may be installed on any modern diesel engine using common rail fuel injection with solenoid injector valves, eliminating the need for mechanical modification of the diesel fuel system.  The dual fuel electronic control unit developed replaces up to 90 percent of the diesel fuel required with cleaner-burning and cheaper compressed natural gas, providing the same power output with lower greenhouse gas emissions than pure diesel. The dual fuel system developed controls the flow of diesel, gas, air, and engine timing to ensure combustion is optimised to maintain a specific torque at a given speed and demand. During controlled experimental analysis, the dual fuel system exceeded the target substitution rate of 90 precent, with a peak diesel substitution achieved of 97 percent, whilst maintaining the same torque performance of the engine under diesel operation.</p>

Improvement of chemmotological properties of diesel fuel by micro-addition of carbon spheroidal nanoparticles

2020 ◽  
pp. 59-66
Author(s):  
Ie.V. Polunkin ◽  
◽  
V.S. Pilyavsky ◽  
Ya.O. Bereznitsky ◽  
T.M. Kamenieva ◽  
...  
Keyword(s):  
Diesel Fuel

DIESEL ENGINE OPERATION IN USE OF FUEL WITH ADDITIVES

2018 ◽  
pp. 18-24
Author(s):  
Petar Kazakov ◽  
Atanas Iliev ◽  
Emil Marinov
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Internal Combustion Engines ◽  
Experimental Studies ◽  
Combustion Engines ◽  
Engine Operation ◽  
Factors Affecting ◽  
Operating Modes ◽  
Positive Effects

Over the decades, more attention has been paid to emissions from the means of transport and the use of different fuels and combustion fuels for the operation of internal combustion engines than on fuel consumption. This, in turn, enables research into products that are said to reduce fuel consumption. The report summarizes four studies of fuel-related innovation products. The studies covered by this report are conducted with diesel fuel and usually contain diesel fuel and three additives for it. Manufacturers of additives are based on already existing studies showing a 10-30% reduction in fuel consumption. Comparative experimental studies related to the use of commercially available diesel fuel with and without the use of additives have been performed in laboratory conditions. The studies were carried out on a stationary diesel engine СМД-17КН equipped with brake КИ1368В. Repeated results were recorded, but they did not confirm the significant positive effect of additives on specific fuel consumption. In some cases, the factors affecting errors in this type of research on the effectiveness of fuel additives for commercial purposes are considered. The reasons for the positive effects of such use of additives in certain engine operating modes are also clarified.

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