Comparative Analysis on Performance and Emission Characteristic of Diesel Engine Fueled with Heated Coconut Oil and Diesel Fuel

Today, most of the essential energy needs of humans and production are met by fossil fuels that are expected to be exhausted in the next century. Furthermore, fossil fuels are not renewable and sensitive to the environment. In particular, there is growing concerned about the negative impact of internal combustion engine emissions on climate change and global environmental pollution. Fuel and alcohol-based additives are being considered as good candidates for sustainable alternative fuels used on compression ignition engines. In this review, the different key production pathways and properties of each of the five alcohol additive candidates were discussed. Besides, their effects on the emission characteristics of diesel engines when alcohol additives are added to diesel fuel are also carefully considered. Five candidates including methanol, ethanol, propanol, butanol, and pentanol have been shown to control pollutants from combustion engines while using alcohol-based additives. This is of great significance in the strategy of coping with the threats of pollution and climate change caused by the operation of transport vehicles

Section: Impact Of Alcohol Additives On Emission Characteristicsmentioning

confidence: 98%

A Review on the Role and Impact of Typical Alcohol Additives in Controlling Emissions from Diesel Engines

Chau

et al. 2021

“…It is very important in the study of engine combustion and is especially important in the simulation of combustion (Teraji et al, 2005). For models to study the phenomenon of combustion, it is extremely necessary to fully determine the kineticchemical factors and the reaction of the flame (Fenton, 1998) (Noor et al, 2018). However, due to the complexity and unstable nature of the turbulent motion inside the combustion chamber, most numerical simulation models rely on the laminar burning velocity to describe and explain the turbulent components instead (Ohyagi et al, 2010).…”

Section: Laminar Flame Characteristicsmentioning

confidence: 99%

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

Hoang

Nguyen

Truong

et al. 2021

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.

“…The good news is that many man-made methods can treat plastic waste to convert them into value-added products like waste plastic pyrolysis oil. However, it is difficult for pure waste plastic pyrolysis oil to replace diesel because of its lower thermal efficiency because the high viscosity of WPO leads to poorer evaporation and combustion (Noor et al, 2018). Furthermore, using 100% WPO has increased the number of toxic emissions due to its very high aromatic content.…”

Section: Engine Performancesmentioning

confidence: 99%

Performance and Emission Characteristics of Diesel Engine Using Ether Additives: A Review

Doan

Nguyen

Pham

et al. 2021

Pressure on alternative fuels and strict environmental regulations are driving a strategic shift in the efficient use of renewable biofuels. One of the promising biofuel candidates recently interested by scholars is a biological or organic additive that is added into diesel or biodiesel fuel to improve engine performance and reduce pollutant emissions. With efforts to improve efficiency and combustion quality in cylinders, combustion characteristics, flame structure and emission formation mechanism in compression ignition (CI) engines using blended fuel with organic additives have been studied on the effect of additive properties on the combustion behaviour. In this review, the physicochemical properties of typical organic additives such as ethers compounds and their effects on engine performance and emission characteristics have been discussed and evaluated based on conclusions of recent relevant literature. The results of the analysis revealed the prospect of using ether additives to improve combustion in cylinders and reduce pollutant emissions from CI engines. Obviously, the presence of higher oxygen content, lower viscosity and density, and higher cetane number resulted in a positive change in the combustion dynamics as well as a chain of mechanisms for the formation of pollutant precursors in the cylinder. Therefore, ether additives have a significant contribution to the sustainable energy strategy of the transportation sector in the next period when internal combustion engines still dominate in the competition for energy system choices equipped on vehicles.