Performance and emission characteristics of biodiesel-blend in diesel engine: A review (original) (raw)
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Asian Review of Mechanical Engineering, 2014
As a renewable, sustainable and alternative fuel for compression ignition engine, biodiesel instead of diesel has been increasingly fuelled to study its effects on engine performances and emissions in the recent 15 years. Biodiesel is an alternative to petroleum-based fuels derived from vegetable oils, animal fats, and used waste cooking oil including triglycerides. Bio-diesel production is a very modern and technological area for researchers due to the relevance that it is winning everyday because of the increase in the petroleum price and the environmental advantages. Trans esterification is the most common method and leads to monoalkyl esters of vegetable oils and fats, now called bio-diesel when used for fuel purposes. In spite of having some other applications, recently it is being considered as one of the most promising alternative fuels in internal combustion engine. Also on the other hand increasing stringent emission regulation will make the use diesel very difficult in the coming days. Regarding the health and environment there is an alternate of diesel called biodiesel. This review paper collects experimentally investigated records and results of engine performance & emission characteristics of compression engine with biodiesel and compared it with conventional diesel. From the review it is found that the use of biodiesel leads to the substantial reduction in PM, HC and CO emissions accompanying with the imperceptible power loss, the increase in fuel consumption and the increase in NOx emission on conventional diesel engine.
Performance and emission characteristics of a diesel engine fuelled with biodiesel blends
2016
Performance and emission characteristics of diesel engine were reviewed in this work. This study was conducted by revising works that were conceded out using biodiesel prepared from the raw oils of: palm, moringa, Jatropha and diesel fuel. In this review study we consider only 20% of each biodiesel (described as MB 20 , PB 20 , and JB 20 ) was tested in diesel engine, given that open literature indicates the possible use of biodiesel of up to 20% in a diesel engine without any engine modification. All biodiesel fuel samples reduce brake power (BP) and increase brake specific fuel consumption (BSFC) than diesel. Diesel engine emission results indicated that blended fuel reduces the average carbon monoxide (CO) and hydrocarbons (HC) emissions except nitric oxides (NO x ) emissions than diesel fuel. B 20 blend of biodiesel is a suitable source for alternative fuel, with ecological welfares. Among the biodiesel blended fuel, Palm biodiesel showed better performance and minimum emission ...
Jurnal Teknologi
The growing demand of diesel power generators in Iran has led to air pollution. Hence, it is necessary to ascertain the level of performance and emissions of the diesel power generators fueled with biofuels. For the first time, in this study, the effect of biodiesel from waste cooking oil and diesel fuel blends (B0, B20, B50, B80 and B100) on the performance (brake power, brake torque, BSFC, brake thermal efficiency and exhaust gas temperature) and emission characteristics (CO and NOx) of a diesel power generator model CAT3412 was investigated. The experiments were conducted at rated engine speed 1530 rpm and various engine loads (25%, 50%, 75% and 100%). The results of the study showed an increase in brake power, brake torque, BTE and NOx emission and a reduction trend in BSFC and CO emission at higher engine loads for all the biodiesel-diesel blends. In addition, the research results indicated that B20 and B50 fuel blends in terms of performance emission characteristics could be recognized as the potential candidates to be certificated for usage in the diesel power generator.
International Journal of Advanced Research (IJAR), 2019
The ever increase in global energy demand, consumption of depletable fossil fuels, exhaust emissions and global warming, all these led to search about alternative fuels. Biodiesel and its blends with diesel fuel are investigated to solve the problem of depletion of fossil fuels and environmental impact. Biodiesel was produced from waste cooking-oil by transesterification process. Blends of waste cooking-oil biodiesel and diesel oil were prepared in volume percentages of 20, 40, 60, 80 and 100% as B20, B40, B60, B80 and B100. Biodiesel blends have ASTM standards of physical and chemical characterization near to diesel fuel. Diesel engine performance and exhaust emissions were studied experimentally for burning waste cooking-oil blend with diesel fuel. This experimental was applied on a diesel engine at different engine loads from zero to full load. Thermal efficiencies for waste cooking-oil biodiesel blends were lower than diesel oil. Specific fuel consumptions of biodiesel blends were higher than diesel fuel. Higher exhaust gas temperatures were recorded for biodiesel blends compared to diesel oil. CO2 emissions for waste cooking-oil biodiesel blends were higher than diesel oil. CO and HC emissions for biodiesel blends were lower than diesel fuel. NOx emissions for biodiesel blends were higher than diesel fuel.
PERFORMANCE ANALYSIS OF BIODIESEL BLEND IN DIESEL ENGINE- A REVIEW
With Focus on reducing the Green House Gas emission, the use of biodiesel as an alternative fuel. In this study, the objective is to clarify the diesel-biodiesel blends on combustion, emission and performance characteristics of DI Engine. Keywords- DI Engine, biodiesel, jatropha curcus oil, biodiesel blends.
Applications Characteristics of Different Biodiesel Blends in Modern Vehicles Engines: A Review
Sustainability
Two main aspects of the transportation industry are pollution to the environment and depletion of fossil fuels. In the transportation industry, the pollution to the environment can be reduced with the use of cleaner fuel, such as gas-to-liquid fuel, to reduce the exhaust emissions from engines. However, the depletion of fossil fuels is still significant. Biodiesel is a non-toxic, renewable, and biodegradable fuel that is considered an alternative resource to conventional diesel fuel. Even though biodiesel shows advantages as a renewable source, there are still minor drawbacks while operating in diesel engines. Modern vehicle engines are designed to be powered by conventional diesel fuel or gasoline fuel. In this review, the performance, emissions, combustion, and endurance characteristics of different types of diesel engines with various conditions are assessed with biodiesel and blended fuel as well as the effect of biodiesel on the diesel engines. The results show that biodiesel a...
Biosciences, Biotechnology Research Asia, 2015
In this research, the performance characteristics and exhaust emissions of an air-cooled single-cylinder diesel engine were investigated using different mixtures of biodiesel fuel derived from castor oil. The evaluations were carried out at different engine loads (0, 25, 50, 75 and 100%) and engine constant speed of 1950 rpm. For all of the investigated loads, the generated power by the engine using the different biofuel mixturesincreased.The specific fuel consumptiondecreased for biodiesel blendsin low loads compared to diesel fuel. The lowest emissions of CO pollutant for all of the evaluated mixtures were observed at middle engine loads and the emissions for biodiesel mixtures were lower than those of pure diesel fuel. Emissions of CO 2 for all of the evaluated mixtures were lower than those of pure diesel and the highest decrease (8.5%) was observed for B15 mixture. Compared with pure diesel fuel, the emission of NOx for B5 and B10 mixtures increased insignificantly, whilst the emission decreased for B15 and B20 mixtures. The emissions of unburnedhydrocarbons by the engine decreased by 21% compared to pure diesel engine.
Effect of Biodiesel on the Performance and Emission Characteristics of Diesel Engines
International Journal of Engineering Research and Technology, 2020
Biodiesel has become one of the main sources of renewable energy. Their positive impact on the environment has earned a lot of attention in past few decades. Biodiesel has several effects on emission and performance attributes of a CI engine. This paper deals with those effects of biodiesels derived from various sources like Jatropha, Mahua, Karanja, soybean, palm, waste cooking oil (WCO) and many other edible and nonedible oils. It has been noticed that excessive use of biodiesel will lead to food shortage and therefore blending of biodiesel with conventional diesel has been suggested by various researchers. In blending, biodiesel and petro-diesel is mixed in a proper ratio to give a mixture of diesel-biodiesel. It has been stated that, blending up to 20% has no effect on properties and is same as that of diesel and provides better results. The emissions like CO, UHC and PM, reduced and was significantly lesser than that of diesel but NOx emission was found to have much higher value when compared with diesel. When BSFC and BTE of diesel and biodiesel were compared, it was found that, BTE reduced but BSFC increased with blending. By considering all these factors and from this review, it can be said that biodiesel and its blend with diesel can be used in CI engine without any major tempering when blending is done up to a certain limit.
Egyptian Journal of Chemistry, 2018
I NCREASE of environmental problems and depletion of fossil fuels are the driving forces to promote biodiesel as an alternative fuel in diesel engines. In the present work, biodiesel was prepared by transesterification of waste cooking oil with methanol, its physical and chemical properties were measured and found to be within acceptable limits of standard specifications of regular diesel fuel. Performance and emissions characteristics of a diesel engine running using biodiesel (B100) and its blends with kerosene were then assessed and compared to those using regular diesel (D100). Two biodiesel blends of biodiesel with kerosene have been used in this study containing 25 and 50% by volume kerosene as (K25) and (K50), respectively. The used engine was a direct injection four stroke, four cylinders diesel engine and was run at two engine speeds being 1250 rpm and 900 rpm. The results showed that the composition of the exhaust gases of the engine running at both speeds was better using biodiesel instead of regular diesel and it has been improved further by blending biodiesel with kerosene. With respect to the brake thermal efficiency, it was found that the use of biodiesel instead of regular diesel reduced the thermal efficiency at 1250 rpm while the reverse was true at a lower running speed of 900 rpm. However at both engine speeds, the thermal efficiency can be improved by blending biodiesel with kerosene.