DIESEL ENGINE OPERATION IN USE OF FUEL WITH ADDITIVES

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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DIESEL ENGINE OPERATION IN USE OF FUEL WITH ADDITIVES

International Conference on Technics Technologies and Education ◽

10.15547/ictte.01.003 ◽

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 ◽

Fuel Additives ◽

Engine Operation ◽

Factors Affecting ◽

Operating Modes ◽

Positive Effects

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Experimental Studies on the Performance of C.I Engine with Fish Oil Methyl Ester as Fuel for Various Blends of Diesel and LPG

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.787.687 ◽

2015 ◽

Vol 787 ◽

pp. 687-691

Author(s):

Tarigonda Hari Prasad ◽

R. Meenakshi Reddy ◽

P. Mallikarjuna Rao

Keyword(s):

Diesel Engine ◽

Diesel Fuel ◽

Alternative Fuels ◽

Internal Combustion Engines ◽

Fossil Fuels ◽

Research Work ◽

Experimental Studies ◽

Internal Combustion ◽

Combustion Engines ◽

Inlet Manifold

Fossil fuels are exhausting quickly because of incremental utilization rate due to increase population and essential comforts on par with civilization. In this connection, the conventional fuels especially petrol and diesel for internal combustion engines, are getting exhausted at an alarming rate. In order to plan for survival of technology in future it is necessary to plan for alternate fuels. Further, these fossil fuels cause serious environmental problems as they release toxic gases into the atmosphere at high temperatures and concentrations. The predicted global energy consumption is increasing at faster rate. In view of this and many other related issues, these fuels will have to be replaced completely or partially by less harmful alternative, eco-friendly and renewable source fuels for the internal combustion engines. Hence, throughout the world, lot of research work is in progress pertaining to suitability and feasibility of alternative fuels. Biodiesel is one of the promising sources of energy to mitigate both the serious problems of the society viz., depletion of fossil fuels and environmental pollution. In the present work, experiments are carried out on a Single cylinder diesel engine which is commonly used in agricultural sector. Experiments are conducted by fuelling the diesel engine with bio-diesel with LPG through inlet manifold. The engine is properly modified to operate under dual fuel operation using LPG through inlet manifold as fuel along FME as ignition source. The brake thermal efficiency of FME with LPG (2LPM) blend is increased at an average of 5% when compared to the pure diesel fuel. HC emissions of FME with LPG (2LPM) blend are reduced by about at an average of 21% when compared to the pure diesel fuel. CO emissions of FME with LPG (2LPM) blends are reduced at an average of 33.6% when compared to the pure diesel fuel. NOx emissions of FME with LPG (2LPM) blend are reduced at an average of 4.4% when compared to the pure diesel fuel. Smoke opacity of FME with LPG (2LPM) blend is reduced at an average of 10% when compared to the pure diesel fuel.

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

AutoGas Filling Complex + Alternative fuel ◽

10.36652/2073-8323-2021-20-3-119-126 ◽

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

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FEATURES OF THE DIESEL RUNNING BY CAMELINA-MINERAL FUEL IN THE MODE OF INDEPENDENT IDLING

Bulletin Samara State Agricultural Academy ◽

10.12737/17446 ◽

2017 ◽

Vol 2 (3) ◽

pp. 15-19

Author(s):

Александр Уханов ◽

Aleksandr Ukhanov ◽

Денис Уханов ◽

Denis Ukhanov ◽

Евгений Сидоров ◽

...

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Diesel Fuel ◽

Filling Ratio ◽

Engine Operation ◽

Mixed Fuel ◽

Camelina Oil ◽

Excess Air ◽

Mineral Fuel ◽

Fresh Charge

The mode of independent idling, characterized by an impaired process flow, unproductive fuel consumption and increased emissions of harmful substances into the atmosphere, is the most unfavorable mode of the diesel engine operation. Therefore, the aim of the research is to reveal the peculiarities of the tractor diesel engine operation by the camelina-mineral fuel in the mode of independent idling. Camelina-mineral fuel is a mixture of camelina oil and mineral diesel fuel in certain ratio of these components. To assess the possibility of using the camelina oil as biological component of diesel mixed fuel, an experimental study of the D-243 diesel engine in idling mode was carried out, and the degree of influence of the different ratio of the components of the mixed fuel on its parameters was determined. The researches were carried out with the diesel fuel on the L-0.2-62 mineral fuel and the camelina-mineral fuel with a ratio of the biological and mineral components: 25% RyzhM + 75% DT; 50% RyzhM + 50% DT; 75% RyzhM + 25% DT; 90% RyzhM + 10% DT and 90% RyzhM + 10% DT (US). For the parameters of the diesel, the excess air factor, the filling ratio of the diesel cylinder with fresh charge, the maximum cycle pressure, the hourly fuel consumption, smoke and carbon monoxide content in the exhaust gases are taken. It is established that when the diesel engine works on camelina-mineral fuel mode the minimum sustainable speed of the crankshaft idle speed 800 min-1 the values of maximum cycle pressure (6.3 MPa) and the filling ratio of the cylinders of a diesel engine the fresh charge (0,87) remain unchanged. The coefficient of excess air, increasing in mixed fuel shares of camelina oil to 90%, reduced from 7.187 to 4.619, while fuel consumption increases of 1.1 kg/h 2 kg/h. The best environmental indicators are observed when working on red-and-mineral fuel 50% RyzhM + 50% DT. Handling mixed fuel with ultrasound reduces fuel consumption, smoke and content of carbon oxide in the exhaust gas relative to the mixed fuel not treated with ultrasound.

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DETERMINATION OF COMPLEX FUEL-ECOLOGICAL CRITERION FOR DIESEL WORKING ON WATER-FUEL EMULSION

Internal Combustion Engines ◽

10.20998/0419-8719.2021.2.04 ◽

2021 ◽

pp. 31-37

Author(s):

A.P. Marchenko ◽

I.V. Parsadanov ◽

A.V. Savchenko

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Environmental Performance ◽

Alternative Fuels ◽

Internal Combustion Engines ◽

Internal Combustion ◽

Specific Fuel Consumption ◽

Injection Timing ◽

Boost Pressure ◽

Combustion Engines

Today, internal combustion engines are very common as energy sources in many countries around the world. This makes the tasks related to improving the environmental performance of internal combustion engines relevant. The introduction of alternative fuels in internal combustion engines is an effective way to reduce their negative impact on the environment. One of the most available and widespread alternative fuels for diesels is a water-fuel emulsion. The use of water-fuel emulsion makes it possible to reduce the specific fuel consumption of petroleum origin, as well as to achieve a significant reduction in emissions of harmful substances from diesel exhaust. However, due to differences in the physical properties of traditional diesel fuel and water-fuel emulsion, the course of the processes of mixture formation and combustion in the diesel cylinder changes significantly. This may be due to the emergence of a reserve for further improvement of the diesel engine by selecting the parameters of the diesel engine running on water-fuel emulsion. The study selected the following parameters for variation: compression ratio, boost pressure, duration of the injection process, injection timing. The article considers the influence of these parameters on the Brake-specific fuel consumption of diesel, the specific emission of particulate matter and nitrogen oxides, the maximum pressure in the cylinder. The nature and degree of influence of changes in the parameters of the diesel engine on its performance was determined using mathematical modeling. It should be noted that the influence of each of the parameters selected for variation is quite complex and often ambiguous. That is, when some indicators improve, others may deteriorate somewhat. Therefore, in order to select the most rational parameters of a diesel engine running on a water-fuel emulsion, it is necessary to simultaneously assess the economic and environmental performance of the diesel engine. For this assessment, a method was used to determine a comprehensive fuel and environmental criterion for a diesel engine running on a water-fuel emulsion. Thus, the article shows the potential for comprehensive improvement of environmental and economic performance of the diesel engine by choosing rational parameters.

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Saving in Fuel Consumption of Marine Diesel Engine and Countermeasures for Degrading Future Fuel(Minor Special Issue on the Fuel Economy in Internal Combustion Engines)

Journal of the Society of Mechanical Engineers ◽

10.1299/jsmemag.83.744_1393 ◽

1980 ◽

Vol 83 (744) ◽

pp. 1393-1398

Author(s):

Ken SAEKI

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Fuel Economy ◽

Internal Combustion Engines ◽

Internal Combustion ◽

Marine Diesel Engine ◽

Combustion Engines ◽

Special Issue ◽

Marine Diesel

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Thermal Management Opportunity on Lubricant Oil to Reduce Fuel Consumption and Emissions of a Light-Duty Diesel Engine

E3S Web of Conferences ◽

10.1051/e3sconf/202131207023 ◽

2021 ◽

Vol 312 ◽

pp. 07023

Author(s):

Davide Di Battista ◽

Fabio Fatigati ◽

Marco Di Bartolomeo ◽

Diego Vittorini ◽

Roberto Cipollone

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Thermal Management ◽

Internal Combustion Engines ◽

Thermal Stabilization ◽

Internal Combustion ◽

Combustion Engines ◽

Warm Up ◽

Lubricant Oil ◽

Light Duty

The high viscosity of the lubricant oil in internal combustion engines at cold starts is responsible for poor friction reduction and inadequate thermal stabilization of metallic masses and represents a major bottleneck in the efforts to reduce specific fuel consumption and pollutant emissions. Consequently, the possibility of integrating techniques for proper thermal management of the lubricant oil on internal combustion engines is of utmost importance to both homologation and daily on-road operation. Main options for reducing the warm-up time for the engine lubricant are the upgrade of the engine cooling and lubricating circuits, dedicated heating, different flow management of the oil/coolant heat exchanger, a renewed design of the oil sump or a thermal storage section to increase the oil temperature in the early phases of the warm up. The paper presents a new opportunity, using a hot storage medium to heat up the oil in the early phase of a driving cycle. A certain quantity of hot water, so, is stored in a tank, which can be used to warm up the lubricating oil when the engine is started up. The heating of this service water can be done by using exhaust gas heat, which is always wasted in the atmosphere. The activity is realized on an IVECO 3.0 L light-duty diesel engine, during a transient cycle (NEDC) on a dynamometric test bench. The benefits in terms of both fuel consumption and CO2 emissions reduction. The characterization of the backpressure associated with an eventual additional heat exchangers and the more complex layout of the oil circuit is assessed, as well as the transient effects produced by the faster oil warm-up and oil-coolant interaction on the engine thermal stabilization.

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Concepts for Hydrogen Internal Combustion Engines and Their Implications on the Exhaust Gas Aftertreatment System

Energies ◽

10.3390/en14238166 ◽

2021 ◽

Vol 14 (23) ◽

pp. 8166

Author(s):

Stefan Sterlepper ◽

Marcus Fischer ◽

Johannes Claßen ◽

Verena Huth ◽

Stefan Pischinger

Keyword(s):

Diesel Engine ◽

Internal Combustion Engines ◽

State Of The Art ◽

Internal Combustion ◽

Specific Power ◽

Exhaust Gas ◽

Combustion Engines ◽

Engine Operation ◽

Aftertreatment System ◽

Exhaust Gas Aftertreatment

Hydrogen as carbon-free fuel is a very promising candidate for climate-neutral internal combustion engine operation. In comparison to other renewable fuels, hydrogen does obviously not produce CO2 emissions. In this work, two concepts of hydrogen internal combustion engines (H2-ICEs) are investigated experimentally. One approach is the modification of a state-of-the-art gasoline passenger car engine using hydrogen direct injection. It targets gasoline-like specific power output by mixture enrichment down to stoichiometric operation. Another approach is to use a heavy-duty diesel engine equipped with spark ignition and hydrogen port fuel injection. Here, a diesel-like indicated efficiency is targeted through constant lean-burn operation. The measurement results show that both approaches are applicable. For the gasoline engine-based concept, stoichiometric operation requires a three-way catalyst or a three-way NOX storage catalyst as the primary exhaust gas aftertreatment system. For the diesel engine-based concept, state-of-the-art selective catalytic reduction (SCR) catalysts can be used to reduce the NOx emissions, provided the engine calibration ensures sufficient exhaust gas temperature levels. In conclusion, while H2-ICEs present new challenges for the development of the exhaust gas aftertreatment systems, they are capable to realize zero-impact tailpipe emission operation.

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Cordunum pistons increase diesel engine economy and reliability

Acta Innovations ◽

10.32933/actainnovations.33.3 ◽

2019 ◽

pp. 28-37

Author(s):

Andriy Marchenko ◽

Volodymyr Shpakovskyy ◽

Volodymyr Volikov

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Diesel Engines ◽

Internal Combustion Engines ◽

Internal Combustion ◽

Ceramic Coatings ◽

Fuel Combustion ◽

Combustion Engines ◽

Piston Group ◽

Cylinder Piston

Taking into account the oil resources depletion the requirements to fuel consumption of internal combustion engines are now increasing as well as to their reliability and durability. With the continual increase in the number of internal combustion engines in operation, along with the problem of parts of the cylinder piston group wearing out has caused exhaust from such engines to be one of the main source of harmful pollutant emissions in cities. Therefore, environmental requirements have in turn increased dramatically. The engine resource and its efficiency largely depend on the process of fuel combustion in the combustion chamber. Experimental studies aimed to improve the working process on diesel engines by piston insulation have shown an effective decrease in fuel consumption by reducing heat loss and more complete fuel combustion. When oxide ceramic coatings were used on the piston and cylinder head, the maximum power increased and the specific fuel consumption decreased. However ceramic coatings are not widely used due to their peeling. We have developed a technology for the galvanic plasma treatment of pistons, which made it possible to obtain on the pistons surface made of aluminum alloys a ceramic corundum layer with high adhesion to the base metal that does not peel and has electret properties. In 1993, pistons with a corundum surface layer were installed in a shunting diesel locomotive and life-time running tests were conducted. Such pistons increased wear resistance, reduced the wear of cylinder liners, increased the strength of the annular jumpers, and were not prone to burnouts and scuffing. They provided an increase in the resource of the cylinder-piston group of the diesel engine by more than 125 thousand engine hours. The paper provides an analysis of the effect of corundum pistons thermal insulation on significant increasing the, engine power and fuel consumption reduction. Basing on experimental bench studies of a gasoline engine, a tractor diesel engine and long-term operational life tests of diesel engines, an attempt had been made to explain the reasons for the improvement in the engines’ efficiency.

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Development of Methods and Tools for the Internal Combustion Engines Diagnostics

Journal of Computational and Theoretical Nanoscience ◽

10.1166/jctn.2019.8355 ◽

2019 ◽

Vol 16 (11) ◽

pp. 4565-4568

Author(s):

Lenar Ajratovich Galiullin ◽

Ilnar Ajratovich Galiullin

Keyword(s):

Internal Combustion Engines ◽

Combustion Engine ◽

Low Cost ◽

Experimental Studies ◽

Internal Combustion ◽

Combustion Engines ◽

Labor Costs ◽

Operating Modes ◽

High Labor ◽

Electronic Control System

Recently, research in the development of methods and tools for the diagnosis of internal combustion engines is conducted in the direction that determines the use of modern technical and information systems. A significant part of the work associated with the study of internal combustion engines in transitional operating modes. At the same time, it is noted that it is difficult to carry out experimental studies related, as already noted, with the high cost of equipment, its low distribution and high labor costs for conducting experiments, and in some cases with insufficient accuracy of measurement and data processing. High labor costs associated primarily with the need to install the engine in special stands and the use of special sensors. Systems based on the possibilities of self-diagnosis of an internal combustion engine with an electronic control system do not allow obtaining engine characteristics in the whole range of rotational frequencies, i.e., have low information content. Thus, there is a need to develop a system for diagnosing internal combustion engines, which ensures sufficient accuracy and informational content of experimental studies, has low cost and low labor costs, and allows to investigate the engine in various operating modes.

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