Laminar Flame Characteristics of 2,5-Dimethylfuran (DMF) Biofuel: A Comparative Review with Ethanol and Gasoline

2021 ◽  
Vol 11 (1) ◽  
pp. 237-254
Author(s):  
Long Vuong Hoang ◽  
Danh Chan Nguyen ◽  
Thanh Hai Truong ◽  
Huu Cuong Le ◽  
Minh Nhat Nguyen
Keyword(s):  
Environmental Pollution ◽  
Internal Combustion Engines ◽  
Laminar Flame ◽  
Initial Conditions ◽  
Internal Combustion ◽  
Alternative Fuel ◽  
Early Years ◽  
Combustion Engines ◽  
Comparative Review ◽  
Potential Alternative

Since the early years of the 21st century, the whole world has faced two very urgent problems: the depletion of fossil energy sources and climate change due to environmental pollution. Among the solutions sought, 2,5-Dimethylfuran (DMF) emerged as a promising solution. DMF is a 2nd generation biofuel capable of mass production from biomass. There have been many studies confirming that DMF is a potential alternative fuel for traditional fuels (gasoline and diesel) in internal combustion engines, contributing to solving the problem of energy security and environmental pollution. However, in order to apply DMF in practice, more comprehensive studies are needed. Not out of the above trend, this paper analyzes and discusses in detail the characteristics of DMF's combustible laminar flame and its instability under different initial conditions. The evaluation results show that the flame characteristics of DMF are similar to those of gasoline, although the burning rate of DMF is much higher than that of gasoline. This shows that DMF can become a potential alternative fuel in internal combustion engines.

scholarly journals Analysis of thermodynamic parameters in spark ignition VCR engine

2019 ◽  
Vol 294 ◽  
pp. 05001
Author(s):  
Patryk Urbański ◽  
Maciej Bajerlein ◽  
Jerzy Merkisz ◽  
Andrzej Ziółkowski ◽  
Dawid Gallas
Keyword(s):  
Thermodynamic Parameters ◽  
Motion Analysis ◽  
Internal Combustion Engines ◽  
Initial Conditions ◽  
Combustion Process ◽  
Internal Combustion ◽  
3D Models ◽  
Spark Ignition ◽  
Combustion Engines ◽  
Combustion Processes

3D models of Szymkowiak and conventional engines were created in the Solidworks program. During the motion analysis, the characteristics of the piston path were analyzed for the two considered engine units. The imported file with the generated piston routes was used in the AVL Fire program, which simulated combustion processes in the two engines with identical initial conditions. The configurations for two different compression ratios were taken into account. The basic thermodynamic parameters occurring during the combustion process in internal combustion engines were analyzed.

scholarly journals Analysing the Performance of Ammonia Powertrains in the Marine Environment

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7447
Author(s):  
Thomas Buckley Imhoff ◽  
Savvas Gkantonas ◽  
Epaminondas Mastorakos
Keyword(s):  
Marine Environment ◽  
Gas Turbines ◽  
Internal Combustion Engines ◽  
Chemical Engineering ◽  
Feasibility Studies ◽  
Internal Combustion ◽  
Alternative Fuel ◽  
System Level ◽  
Combustion Engines ◽  
Catalytic Material

This study develops system-level models of ammonia-fuelled powertrains that reflect the characteristics of four oceangoing vessels to evaluate the efficacy of ammonia as an alternative fuel in the marine environment. Relying on thermodynamics, heat transfer, and chemical engineering, the models adequately capture the behaviour of internal combustion engines, gas turbines, fuel processing equipment, and exhaust aftertreatment components. The performance of each vessel is evaluated by comparing its maximum range and cargo capacity to a conventional vessel. Results indicate that per unit output power, ammonia-fuelled internal combustion engines are more efficient, require less catalytic material, and have lower auxiliary power requirements than ammonia gas turbines. Most merchant vessels are strong candidates for ammonia fuelling if the operators can overcome capacity losses between 4% and 9%, assuming that the updated vessels retain the same range as a conventional vessel. The study also establishes that naval vessels are less likely to adopt ammonia powertrains without significant redesigns. Ammonia as an alternative fuel in the marine sector is a compelling option if the detailed component design continues to show that the concept is practically feasible. The present data and models can help in such feasibility studies for a range of vessels and propulsion technologies.

PELLETS AS AN ALTERNATIVE ENERGY SOURCE FOR CAR

2016 ◽  
Vol 3 (1) ◽  
pp. 48-52
Author(s):  
Милюкова ◽  
A. Milyukova ◽  
Спиридонов ◽  
V. Spiridonov ◽  
Сиваков ◽  
...  
Keyword(s):  
Energy Source ◽  
Alternative Energy ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Alternative Fuel ◽  
Producer Gas ◽  
Combustion Engines ◽  
Environmental Friendliness ◽  
Electric Cars ◽  
Alternative Energy Source

The article deals with the application of pellets as an alternative fuel for the automotive gasifier. In internal combustion engines as fuel it is possible to use producer gas generated by gasifier operating on wood waste (pellets). Cars running on wood gas (also called gas cars), though losing its elegance in appearance, but very effective in terms of environmental friendliness and can be with electric cars.

Improving Internal Combustion Engines Efficiency by Using a Spring/Damper

2007 ◽  
Author(s):  
Shahriar Khosravi ◽  
Vahid Gholampour
Keyword(s):  
Environmental Pollution ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Engine Efficiency ◽  
Increase Efficiency

Piston engines are widely used in automobiles. Increasing engine efficiency and decreasing environmental pollution which is made by these engines, are always the most important concerns of automobile manufacturers. In this paper a new way to increase efficiency of piston engines and decrease their environmental pollution is proposed. In this method, a spring/damper is used instead of connection rod in the structure of piston in these engines.

Biofuels in Automobiles: Advantages and Disadvantages: A Review

2019 ◽  
Vol 3 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Ashraf Elfasakhany
Keyword(s):  
Water Vapor ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Alternative Fuel ◽  
Combustion Engines ◽  
Promising Alternative ◽  
Advantages And Disadvantages ◽  
Co2 Balance ◽  
Engine Systems ◽  
Engine Power

Background: Biofuels are one of the promising alternative fuel sources for automobiles. The use of biofuels in combustion engines of automobiles showed many advantages and disadvantages. In this study, the advantages and disadvantages of using biofuels in internal combustion engines are reviewed and summarized based on early studies. Biofuels can offer favorable well-towheel CO2 balance in our environment and improve engine power and efficiency. Oxygen contents in biofuels also provide advantages for the fuel combustion. However, biofuels, also showed some disadvantages, like corrosiveness to engine systems and low heating values of biofuels. Boiling temperature, absorption with water, vapor toxicity, and autoignition of biofuels showed advantages for some types and drawbacks for others.

Sign in / Sign up

Export Citation Format

Share Document