Various strategies for reducing Noxemissions of biodiesel fuel used in conventional diesel engines: A review

Fossil fuel consumption provides a negative impact on the human health and environment in parallel with the decreased availability of this valuable natural resource for the future generations to use as a source of chemical energy for all applications in energy, power, and propulsion. The diesel fuel consumption in the transport sector is higher than the gasoline in most developing countries for reasons of cost and economy. Biodiesel fuel offers a good replacement for diesel fuel in compression ignition (CI) diesel engines. Earlier investigations by the authors revealed that a blend of 70% amla seed oil biodiesel and 30% eucalyptus oil (AB70EU30) is the favorable alternative renewable fuel blend that can be used as a fuel in diesel engines. With any fuel, air/fuel mixing and mixture preparation impact efficiency, emissions, and performance in CI engines. Minor adjustments in engine parameters to improve air/fuel mixing and combustion are deployable approaches to achieve good performance with alternative fuel blends in CI engines. This paper provides the role of a minor modification to engine parameters (compression ratio, injection timing, and injection pressure) on improved performance using the above mixture of binary fuel blends (AB70EU30). The results showed that the use of AB70EU30 in modified engine resulted in higher brake thermal efficiency and lower brake specific fuel consumption compared to normal diesel for improved combustion that also resulted in very low tailpipe emissions.

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THE DEVICES FOR THE TRANSPORT DIESEL ENGINES CONSTRUCTIVE ADAPTATION FOR THEIR OPERATION BY BIODIESEL FUEL

Bulletin Samara State Agricultural Academy ◽

10.12737/18679 ◽

2016 ◽

Vol 1 (2) ◽

pp. 34-40 ◽

Cited By ~ 1

Author(s):

Хохлова ◽

Ekaterina Khokhlova ◽

Уханов ◽

Denis Ukhanov ◽

Уханов ◽

...

Keyword(s):

Diesel Fuel ◽

Diesel Engines ◽

Carbon Oxide ◽

Partial Replacement ◽

Biodiesel Fuel ◽

Capital Investments ◽

Mixed Fuel ◽

Camelina Oil ◽

Speed Mode ◽

Biological Component

The research is devoted to possibility of mineral diesel fuel with mixed biodiesel fuel partial replacement, which contains the vegetable oil as a biological component (such as: rapeseed, camelina, radish, mustard, colza, soybean, etc.). Constructive versions of bi-fuel supply system and mixers for diesel engines adaptation for their operation by biodiesel fuel are offered. The advantages of the developed bi-fuel systems and mixers are: universality in relation to different types of diesel engines; polyfuelness; availability of components; competitiveness; possibility of production in the plant conditions, no requirement of big capital investments, the small term of payback. The application of the offered system by the diesel-powered machinery provides the necessary percentage ratio of mixed fuel components depending on the load-speed mode without its essential constructive changes. The using of the mixed biodiesel fuel containing for example 50% of mineral fuel and 50% of camelina oil allows to save 50% of petroleum diesel fuel, to reduce smoke of the exaust gases by 17-20%, to reduce the content of carbon oxide by 35-40% in comparison with the work of the diesel engine on mineral diesel fuel, by insignificant decreasing of the effective power (no more than 6%) and by some increasing of specific fuel consumption of mixed fuel (to 14%).

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POSSIBILITIES OF USING CAMELINA SATIVA OIL FOR PRODUCING BIODIESEL FUEL

Transport ◽

10.3846/16484142.2012.664827 ◽

2012 ◽

Vol 27 (1) ◽

pp. 60-66 ◽

Cited By ~ 21

Author(s):

Ernestas Zaleckas ◽

Violeta Makarevičienė ◽

Eglė Sendžikienė

Keyword(s):

Diesel Engines ◽

Methyl Esters ◽

Oxidation Stability ◽

Quality Parameters ◽

Camelina Sativa ◽

Biodiesel Fuel ◽

Optimal Dosage ◽

The European Union ◽

Oilseed Crops ◽

Alternative Feedstocks

Biofuels for diesel engines are produced mainly from rapeseed oil in Lithuania and the Member States of the European Union. In order to minimise an adverse impact of biodiesel fuel on the food sector, it is necessary to look for alternative feedstocks for producing biodiesel fuel including the potential utilisation of the new kinds of oilseed crops and various fatty waste. Camelina (Camelina sativa) could be one of the kinds of such oilseed crops, and therefore the physical and chemical parameters of Camelina sativa oil and biodiesel fuel produced from this oil were determined and the conformity of quality parameters with the requirements of biofuel standard was evaluated. It was found that fatty acid methyl esters made from Camelina sativa oil had a high iodine value (164.6÷169.6 g I2 / 100 g oil), and therefore could be used as fuel for diesel engines only in the mixtures with methyl esters produced from animal fat or used for frying oil. It has been established that similar mixtures can contain 50÷60% of Camelina sativa oil methyl esters. The possibilities of increasing oxidation stability as well as improving the cold flow properties of ester mixtures were investigated. The most effective antioxidant – Ionol (optimal dosage of 500 ppm) and the most efficient depressants Wintron XC-30 (optimal dosage – 1500 ppm) and Infineum R-442 (optimal dosage – 1200 ppm) were selected.

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Potential Application of Biofuel Fuel on the Marine Diesel Engines in Vietnam

European Journal of Engineering Research and Science ◽

10.24018/ejers.2019.4.8.1471 ◽

2019 ◽

Vol 4 (8) ◽

pp. 85-89

Author(s):

Minh Thai Vu ◽

Huu Cuong Le

Keyword(s):

Diesel Engines ◽

New Technology ◽

Road Transport ◽

Development Trend ◽

Biodiesel Fuel ◽

Transportation Sector ◽

The World ◽

Marine Diesel ◽

New Type ◽

The Development Trend

Energy in the transportation sector has become a hot issue all over the world because it can affect the energy security of nations. Finding a new type of energy to replace fossil energy is a top concern of many countries, including biofuels. Over the past two decades, there have been many studies on the use of biodiesel and its mix for diesel engines, the results are very positive. In Vietnam, there have also been studies on the use of biodiesel and its mixes on road transport vehicles. However, in the field of waterway transport, there has not been any specific research. Through a comprehensive synthesis of the application situation and research directions in the world, as well as the ability to produce biodiesel in Vietnam, the article wishes to create a premise to develop more research to find develop new technology solutions to apply clean fuels, especially biofuels on the domestic fleet, in line with the development trend of the world on the use of biodiesel fuel.

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Biodiesel: An eco-friendly alternate fuel for the future: A review

Thermal Science ◽

10.2298/tsci0903185s ◽

2009 ◽

Vol 13 (3) ◽

pp. 185-199 ◽

Cited By ~ 10

Author(s):

Lakshmanan Singaram

Keyword(s):

Diesel Fuel ◽

Diesel Engines ◽

Comprehensive Analysis ◽

Biodiesel Fuel ◽

Alternate Fuel ◽

The World ◽

Alternate Forms ◽

Alternate Source ◽

Natural Foods ◽

Fuel Costs

In today's society, researchers around the world are searching for ways to develop alternate forms of fuel. With the ever-rising fuel costs, developing alternate energy is a top priority. Biodiesel was developed to combat the high gas and oil prices. It is especially made for use in diesel cars and trucks. Biodiesel can be made from all natural foods that can produce oil. Oils such as vegetable, canola, peanut, rapeseed, palm, and olive oil can be used as bio diesel fuel. Virtually all oils that are used in the kitchens everyday can fuel automobiles. Biodiesel fuel is better for the environment because it burns cleaner and does not pollute the atmosphere. It is non-toxic and biodegradable, making it the perfect fuel. Many car manufacturers are realizing that the bio diesel automobile is becoming more popular, and are jumping on the bandwagon, by developing their own version of a biodiesel vehicle. They realize that the need for these vehicles will increase, and predict that they will be ready for the onslaught. Diesel engines have superior fuel efficiencies, and hence they are predominantly used in commercial transportation and agricultural machinery. Due to the shortage of diesel fuel and its increasing costs, a need for an alternate source of fuel for diesel engines is imminent. This paper investigates the suitability of biodiesels as such an alternative with particular reference to automobiles. It reviews techniques used to produce biodiesel and provides a comprehensive analysis of the benefits of using biodiesel over other fuels.

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119 Performance and Emission Characteristics of Diesel Engines fuelled with Biodiesel Fuel Produced by Non-catalytic Alcoholisis

The Proceedings of Conference of Kansai Branch ◽

10.1299/jsmekansai.2006.81._1-25_ ◽

2006 ◽

Vol 2006.81 (0) ◽

pp. _1-25_

Author(s):

Takeo Aoki ◽

Kiyoshi Kawasaki ◽

Koji Yamane

Keyword(s):

Diesel Engines ◽

Biodiesel Fuel ◽

Emission Characteristics ◽

Performance And Emission

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Combustion Analysis and Study on Smoke and NOX Emissions of Diesel and Biodiesel Fueled CI Engines With Ethanol Blends

ASME 2011 Internal Combustion Engine Division Fall Technical Conference ◽

10.1115/icef2011-60011 ◽

2011 ◽

Author(s):

Masoud Iranmanesh

Keyword(s):

Particulate Matter ◽

Diesel Engines ◽

Substantial Reduction ◽

Cetane Number ◽

Biodiesel Fuel ◽

Nox Emissions ◽

Ethanol Addition ◽

Ignition Quality ◽

Reduction Of Nox ◽

Ci Engines

Diesel engines suffer from high amount of soot, particulate matter and nitrogen oxides emissions in spite of their advantages such as high thermal efficiency, low CO and HC emissions. The use of Biodiesel in conventional diesel engines results in a substantial reduction of HC, CO and PM. Its higher cetane number improves the ignition quality. However it suffers from cold starting problems and increased NOx emissions when compared with diesel fuel. Reduction of NOx emissions and particulate matter simultaneously is quite difficult due to the Soot/NOx trade off. In this investigation, tests were conducted on a single cylinder DI diesel engine fueled with neat diesel and biodiesel as baseline fuel and addition of 5 to 20% ethanol on a volume basis in steps of 5 vol.% as a bio-resource supplementary oxygenated fuel to analyze the combustion and emissions characteristics. The results have shown a simultaneous reduction of NOx and smoke emissions in comparison with baseline fuels. A global overview of the results has shown that the 15% ethanol addition to diesel and biodiesel fuel produce the lowest smoke opacity. Meanwhile the lowest amount of NOX emissions belongs to the 10% and 15% ethanol addition to diesel and biodiesel respectively.

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