scholarly journals Improving The Economic And Environmental Performance Of Engines Through The Use Of Alternative Fuels

2021 ◽  
Vol 03 (04) ◽  
pp. 123-129
Author(s):  
Ismatov J.F. ◽  
◽  
Jalilov J.Kh. ◽  
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Engine Performance ◽  
Road Transport ◽  
Raw Material ◽  
Toxic Waste ◽  
Steady Increase ◽  
Hydrogen Energy ◽  
Environmental Friendliness

The rapid depletion of fossil fuels and the steady increase in human energy consumption, leading to environmental pollution, are creating a situation characterized as an energy-environmental degradation. For this reason, extensive research is being conducted to address the problem of reducing the consumption of non-renewable energy sources and pollution of the environment with toxic waste. In such cases, the concept of hydrogen energy, ie the use of hydrogen as a source of energy on a large industrial scale and in road transport, is important. The prospects for the use of hydrogen for automobile engines can be summarized as follows. First of all, environmental friendliness, renewability and unrestricted raw material reserves, as well as unique engine performance; these allow hydrogen to be used without drastic changes to modern engine designs.

scholarly journals A Comparison of Ethanol, Methanol, and Butanol Blending with Gasoline and Its Effect on Engine Performance and Emissions Using Engine Simulation

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1322
Author(s):  
Simeon Iliev
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Gasoline Engine ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Engine Simulation ◽  
Engine Model ◽  
Fuel Blends ◽  
Performance And Emissions ◽  
Blended Fuels

Air pollution, especially in large cities around the world, is associated with serious problems both with people’s health and the environment. Over the past few years, there has been a particularly intensive demand for alternatives to fossil fuels, because when they are burned, substances that pollute the environment are released. In addition to the smoke from fuels burned for heating and harmful emissions that industrial installations release, the exhaust emissions of vehicles create a large share of the fossil fuel pollution. Alternative fuels, known as non-conventional and advanced fuels, are derived from resources other than fossil fuels. Because alcoholic fuels have several physical and propellant properties similar to those of gasoline, they can be considered as one of the alternative fuels. Alcoholic fuels or alcohol-blended fuels may be used in gasoline engines to reduce exhaust emissions. This study aimed to develop a gasoline engine model to predict the influence of different types of alcohol-blended fuels on performance and emissions. For the purpose of this study, the AVL Boost software was used to analyse characteristics of the gasoline engine when operating with different mixtures of ethanol, methanol, butanol, and gasoline (by volume). Results obtained from different fuel blends showed that when alcohol blends were used, brake power decreased and the brake specific fuel consumption increased compared to when using gasoline, and CO and HC concentrations decreased as the fuel blends percentage increased.

Performance and emission characteristics of turbocharged diesel engine fueled with palm biodiesel blends

2018 ◽  
Vol 7 (3) ◽  
pp. 1040
Author(s):  
Byungmo Yang ◽  
M A. Kalam ◽  
Haengmuk Cho
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Engine Performance ◽  
Alternative Fuel ◽  
Performance And Emission ◽  
Crude Oil Prices ◽  
Gas Measurement ◽  
Consumption Rates ◽  
Hc Emissions ◽  
Main Component

The exhaustion of fossil fuels and sharp rise in crude oil prices has led to the development of various alternative fuels. Alternative fuels are a necessity to meet rising energy consumption rates and to ensure eco-friendly growth. Alternative fuels that can be regenerated, are sustainable and have clean burning capacity to help promote an eco-friendly development. Whereas there have been various ideas and technologies relating to biodiesel as an alternative fuel, these tend to be restricted to the distant future insofar as compression-ignition engines are concerned. Biodiesel, produced by reacting triglycerides which are the main component of animal or plant-based fatty acids with methanol, is known to be an eco-friendly alternative fuel that can take the place of conventional petroleum diesel. In the present study, biodiesel (palm oil) was mixed at a certain ratio with commercially sold diesel, then introduced into a TCDI engine which was run at low load conditions for engine performance and exhaust gas measurement. Both engine output and torque were reduced, and fuel consumption increased to make up for the reduction in output. There were slight reductions in NOx and CO2 emissions, but changes in CO and HC emissions were negligible.  

scholarly journals The Importance of Alternative Drive Vehicles in Road Transport in Poland and the European Union

2021 ◽  
Vol 12 (1) ◽  
pp. 67-77
Author(s):  
Damian Frej ◽  
Paweł Grabski ◽  
Emilia Szumska
Keyword(s):  
European Union ◽  
Electric Vehicles ◽  
Alternative Fuels ◽  
Renewable Energy Sources ◽  
Road Transport ◽  
Energy Sources ◽  
The European Union ◽  
Passenger Cars ◽  
Alternative Drive ◽  
European Union Countries

Abstract The development of electromobility in Poland and the whole world is an inevitable process. Every year, electric vehicles and vehicles powered by renewable fuels become more and more popular. It should be noted that the development of infrastructure for electric vehicles and the pursued environmental policy with the related subsidies for the purchase of electric vehicles are an important aspect encouraging the purchase of this type of vehicle. The article presents a comparison of the popularity of vehicles powered by renewable energy sources in Poland and other European Union countries, as well as the characteristics of the most common alternative fuels. Its main objective is to specify the importance of passenger cars with alternative drive sources across the selected EU countries.

scholarly journals Renewable Green hydrogen energy impact on sustainability performance

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Asem Alzoubi
Keyword(s):  
Fossil Fuels ◽  
Energy Use ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
First Century ◽  
Hydrogen Energy ◽  
Energy Infrastructure ◽  
Energy Impact ◽  
Energy Demands ◽  
The Many

In today's world, the major source of energy is fossil fuels, which are nonrenewable and cannot be used once exhausted. At the start of the twenty-first century, main challenges with current energy infrastructure throughout the world were a finite supply of fossil fuels, ever-increasing energy use, and the growing environmental impact of greenhouse gas emissions. Fossil fuel energy is economical due to existing infrastructure, but it has significant downsides and has a severe impact on the environment. As a result, renewable energy sources are being investigated as potential contenders to supply the bulk of energy demands. Hydrogen is the least harmful to the environment of these fuels. Hydrogen is a clean, long-lasting fuel with the potential that is the source of future global energy. It may potentially be used to replace current fossil-fuel-based energy infrastructure. This is seen as a solution to the above-mentioned challenges, such as global warming and environmental degradation. It is impossible to overestimate the relevance of environmental and economic factors in the development of hydrogen infrastructure. This article discusses the many aspects of hydrogen, including as manufacturing, storage, and applications, with a focus on the environment and the economy.

Experimental Investigation of Four Stroke Diesel Engine Performance Using Neem Oil and Neem Oil with Hydrogen as a Fuel

2014 ◽  
Vol 592-594 ◽  
pp. 1559-1563
Author(s):  
Thangaraju Rajasekaran ◽  
K. Duraisamy ◽  
K.R. Arvindd ◽  
D. Thamilarasu ◽  
Venkatachalam Chandraprabu ◽  
...  
Keyword(s):  
Energy Demand ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Driving Forces ◽  
Environmental Concern ◽  
Engine Performance ◽  
Calorific Value ◽  
Neem Oil ◽  
Combustion Properties ◽  
Ci Engines

Depletion of fossil fuels, unaffordability of conventional fuels (petrol, diesel) and atmospheric pollution lead researchers to develop alternative fuels. Fuels derived from renewable biological resources used in diesel engines are known as biodiesel. Biodiesel is environmental friendly liquid fuel similar to petrol and diesel in combustion properties. Increasing environmental concern, diminishing petroleum reserves and agriculture based economy of our country are the driving forces to promote biodiesel as an alternate fuel. Hydrogen seems to be viable fuel to meet sustainable energy demand with minimum environmental impact. Hydrogen has high calorific value and clean burning characteristics which makes it effective fuel for future. It was found that hydrogen usage reduce emissions such as CO2and HC. India is one of the largest producers of neem oil and its seed contains 30% oil content. It is an untapped source in India, so the neem oil usage will be a best option. The investigation made on pure neem oil and neem oil with hydrogen addition at different flow rate (2 lpm & 4 lpm) in CI engines. The result shows that, brake thermal efficiency of neem oil with 4 lpm hydrogen was increased to 7.98% compare to pure neem oil at 4 Nm torque and fuel consumption of neem oil with 4 lpm hydrogen was decreased to 13.49% compared to pure neem oil at 4 Nm torque.

Mixed Culture Microalgae-Based Coconut Biodiesel as Fuel to Improve DI CI Engine Performance, Emission Characteristics

2018 ◽  
Vol 877 ◽  
pp. 347-353
Author(s):  
Katam Ganesh Babu ◽  
A. Veeresh Babu ◽  
K. Madhu Murthy ◽  
M. Kiran Kumar
Keyword(s):  
Mixed Culture ◽  
Diesel Fuel ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Engine Performance ◽  
Biodiesel Fuel ◽  
Emission Characteristics ◽  
Fuel Demand ◽  
Ci Engine ◽  
Alternative Sources

The depleting Fossil fuels reserves are caused to look into new Renewable energy sources to fulfill Diesel fuel demand in developing countries such as India. Increasing urbanization is lead to the search for new alternative sources like biodiesel. In India demand of diesel fuel in Industry and Transportation sector. To resolve all the above problems, researchers, scientists were produced biodiesel from first, second and third generation biodiesel sources. Among all the sources Algae was the most Oil rich sources. The byproducts in algae to biodiesel conversion process are most valuable than other. In the present work author tried to work in a new approach, i.e. the mixed culture algae particles are emulsified in pure Coconut biodiesel fuel by using TritonX-100 as a surfactant to prepare an emulsified fuel. This fuel sample was applied to DI CI engine to improve performance, emission characteristics. The experimental results were shown that there is the improvement in diesel engine performance; emission characteristics especially break thermal efficiency and NOx emission reduction than diesel fuel due to its clean combustion.

scholarly journals Optimization of biogas composition in experimental studies

2019 ◽  
Vol 112 ◽  
pp. 02007 ◽  
Author(s):  
Radostin Dimitrov ◽  
Zdravko Ivanov ◽  
Penka Zlateva ◽  
Veselin Mihaylov
Keyword(s):  
Methane Concentration ◽  
Combustion Engine ◽  
Renewable Energy Sources ◽  
Experimental Studies ◽  
Engine Performance ◽  
Raw Material ◽  
Maximum Efficiency ◽  
Gas Generator ◽  
Harmful Emissions ◽  
Main Components

The article is focused on the potential and application of biogas, as an alternative fuel from Renewable Energy Sources, for use mainly in gas-generator stations. Biogas fuel is basically a mixture of methane and carbon dioxide. Its composition depends on the type of raw material used for its production. Methane concentration in biogas is between 50÷80%. To be possible engine to work with maximum efficiency with different biogas fuels, it is necessary to modify specific adjustment parameters depending on the concentration of methane in the mixture. This requires the creation of a biogas simulation system for different concentrations of the main components. The aim is to investigate and determine the optimum and permissible biofuel blend concentrations and their impact on engine performance and fuel consumption. Biogas can be used as a fuel to produce electricity, heat or steam or as fuel for internal combustion engine, and its use will help to reduce harmful emissions into the atmosphere.

scholarly journals Turning Waste Cooking Oils into Biofuels—Valorization Technologies: A Review

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 116
Author(s):  
Lucas Nascimento ◽  
André Ribeiro ◽  
Ana Ferreira ◽  
Nádia Valério ◽  
Vânia Pinheiro ◽  
...  
Keyword(s):  
Global Warming ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Agricultural Waste ◽  
Raw Material ◽  
Sustainable Society ◽  
Economic Perspective ◽  
Advantages And Disadvantages ◽  
Waste Cooking Oils ◽  
Cooking Oils

In search of a more sustainable society, humanity has been looking to reduce the environmental impacts caused by its various activities. The energy sector corresponds to one of the most impactful activities since most energies produced come from fossil fuels, such as oil and coal, which are finite resources. Moreover, their inherent processes to convert energy into electricity emit various pollutants, which are responsible for global warming, eutrophication, and acidification of soil and marine environments. Biofuels are one of the alternatives to fossil fuels, and the raw material used for their production includes vegetable oils, wood and agricultural waste, municipal waste, and waste cooking oils (WCOs). The conventional route for WCO valorization is the production of biodiesel, which, as all recovery technologies, presents advantages and disadvantages that must be explored from a technical and economic perspective. Despite its successful use in the production of biodiesel, it should be noticed that there are other approaches to use WCO. Among them, thermochemical technologies can be applied to produce alternative fuels through cracking or hydrocracking, pyrolysis, and gasification processes. For each technology, the best conditions were identified, and finally, projects and companies that work with this type of technology and use WCO were identified.

scholarly journals Trends in Scientific Literature on Energy Return Ratio of Renewable Energy Sources for Supporting Policymakers

2020 ◽  
Vol 10 (2) ◽  
pp. 21 ◽  
Author(s):  
Roberto Leonardo Rana ◽  
Mariarosaria Lombardi ◽  
Pasquale Giungato ◽  
Caterina Tricase
Keyword(s):  
Renewable Energy ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Ghg Emissions ◽  
Energy Sources ◽  
Economic Systems ◽  
Solar Photovoltaic ◽  
Academic Literature

The scarcity of fossil fuels and their environmental impact as greenhouse gas (GHG) emissions, have prompted governments around the world to both develop research and foster the use of renewable energy sources (RES), such as biomass, wind, and solar. Therefore, although these efforts represent potential solutions for fossil fuel shortages and GHG emission reduction, some doubts have emerged recently regarding their energy efficiency. Indeed, it is very useful to assess their energy gain, which means quantifying and comparing the amount of energy consumed to produce alternative fuels. In this context, the aim of this paper is to analyze the trend of the academic literature of studies concerning the indices of the energy return ratio (ERR), such as energy return on energy invested (EROEI), considering biomass, wind and solar energy. This could be useful for institutions and to public organizations in order to redefine their political vision for realizing sustainable socio-economic systems in line with the transition from fossil fuels to renewable energies. Results showed that biomass seems to be more expensive and less efficient than the equivalent fossil-based energy, whereas solar photovoltaic (PV) and wind energy have reached mature and advanced levels of technology.

scholarly journals Optimization of Engine Performance through different piston shapes by Taguchi Method

2020 ◽  
Vol 9 (3) ◽  
pp. 333-337 ◽  
Keyword(s):  
Combustion Chamber ◽  
Energy Demand ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Combustion Process ◽  
Engine Performance ◽  
Mixing Rate ◽  
Time Duration ◽  
Compression Ignition Engine ◽  
Air Mixing

The world’s energy demand has increased drastically in the past and is likely to increase even more in the upcoming years. The fossil fuels are non-renewable energy, depleted at fast rate and this fact intensifies the need to look for alternative fuels to meet our day to day energy needs in all power sectors. The consumption rate of energy has increased tremendously and it necessitates increased supply of energy in all forms. The conventional energy resources like diesel, petroleum, gas and coal will soon be depleted. Hence there is a dire requirement to generate alternative sources of the fuel. Biodiesel is one of the best alternative and renewable fuel. It is oxygenate, Sulphur free and biodegradable. Oxygen content in biodiesel helps to improve the efficiency of the engine. Combustion chamber in compression ignition engine is one of the most important roles to enhance the fuel – air mixing rate (swirl) in short possible time. The turbulence is guided by the shape of the combustion chamber. The air swirl is created in combustion chamber, when the fuel air mixing rate increases. Hence the time duration of air fuel mixing rate decreases. The overall duration of the combustion process to shorten as swirl has leads to increases mechanical efficiency. In this work, in which biodiesel is prepared by transesterification process and engine performance is optimized by different parameters such as Piston shape, Load and Blend ratio and analyzed by Analysis of Variance.

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