Relative Change in SI Engine’s Emission and Performance Parameters Using New Locally Made Octane Enhancer

In this study, a new gasoline Octane enhancer was made in Al-Doura refinery in Baghdad andwas used with the Iraqi pool gasoline. The main objective of this study was to find an Octanebooster to the low Octane Gasoline produced by Al-Doura refinery that does adversely affect itschemical, physical or combustion properties. This additive was then added to gasoline indifferent percentages (2.5% till 15% Vol) and the blend’s properties e.g. calorific value, density,Octane number (RON and MON), gum content, sulfur content were measured. These blendswere then tested against the performance of the original pool gasoline using previously calibratedand tested software. The relative change in the engine performance was then observed andcompared. It was found that the octane number of gasoline significantly improved after additionof the additive, its gum content decreased, its calorific value decreased while the sulfur contentwas slightly increased. No major change in the engine performance was noticed except for thedecrease in peak cylinder temperature and the sulfur dioxide and nitrogen oxides level at 2.5%then increased with additives.

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.592-594.1559 ◽

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.

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Study on Emission and Performance of Diesel Engine Using Castor Biodiesel

Journal of Chemistry ◽

10.1155/2014/451526 ◽

2014 ◽

Vol 2014 ◽

pp. 1-8 ◽

Cited By ~ 24

Author(s):

Md. Saiful Islam ◽

Abu Saleh Ahmed ◽

Aminul Islam ◽

Sidek Abdul Aziz ◽

Low Chyi Xian ◽

...

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Performance Test ◽

Engine Performance ◽

Specific Fuel Consumption ◽

Smoke Emission ◽

Suitable Alternative ◽

Biodiesel Blend ◽

And Performance ◽

Emission And Performance

This paper presents the result of investigations carried out in studying the emission and performance of diesel engine using the castor biodiesel and its blend with diesel from 0% to 40% by volume. The acid-based catalyzed transesterification system was used to produce castor biodiesel and the highest yield of 82.5% was obtained under the optimized condition. The FTIR spectrum of castor biodiesel indicates the presence of C=O and C–O functional groups, which is due to the ester compound in biodiesel. The smoke emission test revealed that B40 (biodiesel blend with 40% biodiesel and 60% diesel) had the least black smoke compared to the conventional diesel. Diesel engine performance test indicated that the specific fuel consumption of biodiesel blend was increased sufficiently when the blending ratio was optimized. Thus, the reduction in exhaust emissions and reduction in brake-specific fuel consumption made the blends of caster seed oil (B20) a suitable alternative fuel for diesel and could help in controlling air pollution.

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Performance and Exhaust Gas Emission of Biodiesel Fuel with Palm Oil Based Additive in Direct Injection Compression Ignition Engine

International Journal of Automotive and Mechanical Engineering ◽

10.15282/ijame.16.1.2019.7.0469 ◽

2019 ◽

Vol 16 (1) ◽

pp. 6173-6187

Author(s):

C. B. How ◽

N. M. Taib ◽

M. R. A. Mansor

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Palm Oil ◽

Direct Injection ◽

Engine Performance ◽

Compression Ignition ◽

Exhaust Gas Emission ◽

And Performance ◽

Engine Emission ◽

Emission And Performance

Blending biodiesel in the diesel would increase the tendency of having a high viscosity fuel. For this reason, the addition of a small amount of additives into the blends may improve the engine performance and lead to better fuel consumption. The purpose of this paper is to experimentally investigate the performance and emissions generated by various mixtures of biodiesel and diesel with palm oil based additive in the compression ignition direct injection diesel engine of Yanmar TF90. Experiments were also conducted to identify the ideal biodiesel, diesel and the additive mixture that produces the optimum engine emission and performance. The experiment was conducted by using mixtures that consisted of 10%, 20% and 30% of biodiesel with and without the additives. From the results of the experiments, PB10 with 0.8 ml additives produced the highest braking power and lowest fuel consumption as compared to the diesel and the rest of the biodiesel blends. The presence of biodiesel and additives were found to not only improve the engine performance, but also led to the reduction of carbon emission. Although all the diesel, biodiesel and additive demonstrated low smoke emission with a complete combustion, a slight increase however, was observed in the NOx emission. In conclusion, PB10 is seen as the most ideal blend for diesel engine in terms of providing the most optimum engine emission and performance.

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Influence of multiple pre-injection on engine performance based on exhaust gas control

E3S Web of Conferences ◽

10.1051/e3sconf/202126801011 ◽

2021 ◽

Vol 268 ◽

pp. 01011

Author(s):

Enxing Zhang ◽

Tengteng Li ◽

Zenghui Yin ◽

Guotian Li ◽

Jing Hao ◽

...

Keyword(s):

Fluid Dynamics ◽

Cfd Simulation ◽

Engine Performance ◽

Exhaust Gas ◽

Trade Off ◽

Computational Fluid Dynamics Cfd ◽

Reduce Emissions ◽

And Performance ◽

Coupling Point ◽

Emission And Performance

With the development of the society, the emission laws are increasingly strict, and EGR and multiple pre-injection strategy can effectively reduce emissions. In order to study the influence of EGR rate and pre-injection on the emission and performance of engine, a computational fluid dynamics (CFD) simulation model was established based on GT power. By changing the EGR rate, the number of pre-injection and the amount of pre-injection, the best technology coupling point is explored. The results show that EGR can effectively reduce the generation of NOx, but it will lead to the increase of soot production and the decrease of power; pre-injection can improve the trade-off relationship between NOx and power.

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Effect of Producer Gas from Redgram Stalk and Combustion Chamber Types on the Emission and Performance Characteristics of Diesel Engine

Energies ◽

10.3390/en14185879 ◽

2021 ◽

Vol 14 (18) ◽

pp. 5879

Author(s):

K. M. Akkoli ◽

N. R. Banapurmath ◽

Suresh G ◽

Manzoore Elahi M. Soudagar ◽

T. M. Yunus Khan ◽

...

Keyword(s):

Diesel Engine ◽

Combustion Chamber ◽

Engine Performance ◽

Nozzle Geometry ◽

Producer Gas ◽

Gas Temperature ◽

Combustion Chambers ◽

And Performance ◽

Exhaust Gas Temperature ◽

Emission And Performance

The engine performance has been improved by modifying the combustion chamber shape of the diesel engine for dual-fuel operation with liquid fuel and producer gas (PG). The combined effect of gaseous fuel from redgram stalk and combustion chamber type on the emission and performance of blended-fuel of diesel and HOME biodiesel–PG has been investigated. In this experimental study, four varieties of combustion chambers hemispherical (HCC), low swirl (LSCC), dual swirl (DSCC), and toroidal re-entrant (TRCC) were analyzed comprehensively. The results presented that the TRCC configuration with a given nozzle geometry has 9% improved brake thermal efficiency (BTE) and 10.4% lower exhaust gas temperature (EGT). The smoke, unburnt hydrocarbon (UBHC), and carbon monoxide (CO) decreased by 10–40%, but a 9% increase in nitrogen oxides (NOX) emission levels was observed with TRCC. The delay period and combustion period were decreased by 5% and 7%. The fuel replacement of about 71% for the diesel–PG combination with HCC and 68% for the HOME–PG combination with TRCC was achieved.

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Design of Aero Gas Turbines Using Hydrogen

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.2179468 ◽

2004 ◽

Vol 128 (4) ◽

pp. 754-764 ◽

Cited By ~ 9

Author(s):

Fredrik Haglind ◽

Riti Singh

Keyword(s):

Gas Turbines ◽

Engine Performance ◽

Civil Aviation ◽

Hydrogen Fuel ◽

Oil Resources ◽

And Performance ◽

Aero Engines ◽

Performance Gains ◽

Main Effects ◽

Emission And Performance

Mainly owing to the dwindling fossil oil resources and the environmental concerns of discharging greenhouse gases into the atmosphere, it is essential to find an alternative to kerosene for civil aviation. This paper covers the main effects on aero engines when changing to hydrogen fuel. Particularly, emission and performance issues are discussed, but some design matters are also covered. By simply changing to hydrogen, small engine performance gains may be obtained. The results of the calculations suggest that there is the potential to design a combustion system using hydrogen that produces less NOx emissions than any system using kerosene.

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Experimental investigation on the effect of compression ratio over emission and performance characteristics of the diesel engine using ternary blends

International Journal of Green Energy ◽

10.1080/15435075.2020.1854263 ◽

2020 ◽

Vol 18 (3) ◽

pp. 231-242

Author(s):

Ganesh Vijay More ◽

Yarrapathruni Venkata Hanumantha Rao ◽

Palle Issac Prasad ◽

Boggarapu Nageswara Rao

Keyword(s):

Experimental Investigation ◽

Diesel Engine ◽

Compression Ratio ◽

Performance Characteristics ◽

Ternary Blends ◽

And Performance ◽

Emission And Performance

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Wastes to energy: Improving the poor properties of waste tire pyrolysis oil with waste cooking oil methyl ester and waste fusel alcohol – A detailed assessment on the combustion, emission, and performance characteristics of a CI engine

Energy ◽

10.1016/j.energy.2021.119942 ◽

2021 ◽

Vol 222 ◽

pp. 119942

Author(s):

Ümit Ağbulut ◽

Murat Kadir Yeşilyurt ◽

Suat Sarıdemir

Keyword(s):

Waste Cooking Oil ◽

Pyrolysis Oil ◽

Cooking Oil ◽

The Poor ◽

Fusel Alcohol ◽

Detailed Assessment ◽

Combustion Emission ◽

Ci Engine ◽

And Performance ◽

Emission And Performance

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A Review on the Thermochemical Recycling of Waste Tyres to Oil for Automobile Engine Application

Energies ◽

10.3390/en14133837 ◽

2021 ◽

Vol 14 (13) ◽

pp. 3837

Author(s):

Mohammad I. Jahirul ◽

Farhad M. Hossain ◽

Mohammad G. Rasul ◽

Ashfaque Ahmed Chowdhury

Keyword(s):

Diesel Engine ◽

Engine Performance ◽

Calorific Value ◽

High Viscosity ◽

Combustion Efficiency ◽

Fuel Additive ◽

Pyrolysis Oil ◽

Performance And Emission ◽

Automobile Engines ◽

Direct Use

Utilising pyrolysis as a waste tyre processing technology has various economic and social advantages, along with the fact that it is an effective conversion method. Despite extensive research and a notable likelihood of success, this technology has not yet seen implementation in industrial and commercial settings. In this review, over 100 recent publications are reviewed and summarised to give attention to the current state of global tyre waste management, pyrolysis technology, and plastic waste conversion into liquid fuel. The study also investigated the suitability of pyrolysis oil for use in diesel engines and provided the results on diesel engine performance and emission characteristics. Most studies show that discarded tyres can yield 40–60% liquid oil with a calorific value of more than 40 MJ/kg, indicating that they are appropriate for direct use as boiler and furnace fuel. It has a low cetane index, as well as high viscosity, density, and aromatic content. According to diesel engine performance and emission studies, the power output and combustion efficiency of tyre pyrolysis oil are equivalent to diesel fuel, but engine emissions (NOX, CO, CO, SOX, and HC) are significantly greater in most circumstances. These findings indicate that tyre pyrolysis oil is not suitable for direct use in commercial automobile engines, but it can be utilised as a fuel additive or combined with other fuels.

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