Using alternative and renewable liquid fuels to improve the environmental performance of internal combustion engines: key challenges and blending technologies

2014 ◽  
pp. 52-89 ◽  
Author(s):  
R.J. Pearson ◽  
J.W.G. Turner
Keyword(s):  
Environmental Performance ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Liquid Fuels ◽  
Combustion Engines

scholarly journals Future mobility without internal combustion engines and fuels?

2013 ◽  
Vol 155 (4) ◽  
pp. 3-15
Author(s):  
Hans LENZ
Keyword(s):  
Co2 Emissions ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Liquid Fuels ◽  
Infrastructure Investment ◽  
Combustion Engines ◽  
Foreseeable Future ◽  
Electric Motors ◽  
The Future ◽  
To Come

For many decades to come, and in the foreseeable future, internal combustion engines – in many cases with electric motors – will be with us, just like the liquid fuels they require. The importance of crude oil will decline, as these fuels will be increasingly produced on a synthetic basis without CO2 emissions. The answers to the question ”Future Mobility without Internal Combustion Engines and Fuels?“ are “no” in both cases. Purely battery-electric mobility will be applied in the future only in specific areas. Fuel-cell vehicles will hardly be used because of the extreme infrastructure investment costs. In contrast, liquid fuels will ensure the future of mobility. In this scenario, energy such as solar or wind energy will be generated without CO2 emissions.

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

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.

scholarly journals Why we should invest further in the development of internal combustion engines for road applications

2020 ◽  
Vol 75 ◽  
pp. 56 ◽  
Author(s):  
Luka Lešnik ◽  
Breda Kegl ◽  
Eloísa Torres-Jiménez ◽  
Fernando Cruz-Peragón
Keyword(s):  
Electric Vehicles ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Internal Combustion ◽  
High Energy ◽  
Liquid Fuels ◽  
Transport Sector ◽  
Combustion Engines ◽  
Road Transportation ◽  
Battery Capacity

The majority of on-road vehicles today are powered by internal combustion engines, which are, in most cases, burning petroleum-derived liquid fuels mixed with bio-components. The power to weight ratio of internal combustion engines combined with the high energy content of conventional fuels, which can be refilled easily in matter of minutes, makes them ideal for all kinds of road transportation. Since the introduction of EURO emissions norms, the emissions from the Transport sector in the European Union have undergone significant reduction. There are several alternatives to fossil fuels with similar properties, which can replace their usage in the Transport sector. The main focus of research in recent decades has been on biofuels, which can be produced from several sources. The production of biofuels is usually energy more intensive than production of fossil fuels, but their usage can contribute to emission reduction in the Transport sector. In recent years, a lot of effort was also put into promotion of electric vehicles as zero emissions vehicles. This statement should be reconsidered, since the greenhouse impact of electrical vehicles is not negligible. Conversely, in some cases, an electrical vehicle can have an even higher emission impact than modern vehicles with sophisticated internal combustion engines. This is characteristic for countries where the majority of the electricity is produced in coal power plants. With the decrease of greenhouse gas emissions in the Electricity Production sector, and with the increase of battery capacity, the role of electric vehicles in the Transport sector will probably increase. Despite significant research and financial investments in electric vehicles development, the transport sector in near future will be mostly powered by internal combustion engines and petroleum-derived liquid fuels. The amount of pollution from transport sector will be further regulated with stricter emission norms combined with smaller amount of alternative fuel usage.

scholarly journals The effect of the working transitory regimes of the internal combustion engines with gas and liquid fuel supply upon the engine performance

2018 ◽  
Vol XIX (1) ◽  
pp. 535-549
Author(s):  
Moroianu Corneliu
Keyword(s):  
Liquid Fuel ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Internal Combustion ◽  
Liquid Fuels ◽  
Combustion Engines ◽  
Fuel Supply ◽  
Marine Engines ◽  
Working Performance ◽  
Working Parameters

The running of the Diesel marine engines under maximum safe conditions at the best economical and working parameters is one of the main requirements of a good navigation on the Seven Seas. This paper is proposed to present some essential aspects related to the internal combustion engines with gas and liquid fuels supply upon the working performance of the engine.

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