Biodiesel production through hydrodynamic cavitation and performance testing

Pal, Amit; Verma, Ashish; Kachhwaha, Surendra Singh; Maji, S.

doi:10.1016/j.renene.2009.08.027

Cited by 137 publications

(41 citation statements)

References 16 publications

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“…For example, Gumus and Kasifoglu [40] found that the brake specific energy consumption (BSEC) for B100 was higher than that of diesel by 4.8%, due to a lower heating value (about 7.4%) and higher viscosity. Some works have also reported [41][42][43][44] decrease in fuel consumption when biodiesel and its blends were used as a fuel, in comparison to diesel. For instance, Ulusoy et al [41] observed that the fuel consumption of frying oil biodiesel was 2.43% less than that of diesel on a 4-cylinder, 4-stroke 46kW diesel engine under similar operating conditions.…”

Section: Brake Specific Fuel Consumptionmentioning

confidence: 99%

Combustion and performance characteristics of CI (compression ignition) engine running with biodiesel

Tesfa

Mishra

Zhang

et al. 2013

Energy

144

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Biodiesel is one of the alternative fuels which is renewable and environmentally friendly and can be used in diesel engines with little or no modifications. In the present study, experimental investigations were carried out on the effects of biodiesel types, biodiesel fraction and physical properties on the combustion and performance characteristics of a compression ignition (CI) engine. The experimental work was conducted on a four-cylinder, four -stroke, direct injection (DI) and turbocharged diesel engine by using biodiesel of waste oil, rapeseed oil and corn oil and normal diesel. Based on the measured parameters, detailed analyses were carried out on cylinder pressure, heat release rate and brake specific fuel consumption (BSFC). It has been seen that the biodiesel types do not result in any significant differences in peak cylinder pressure and BSFC. The results also clearly indicate that the engine running with biodiesel have slightly higher in-cylinder pressure and heat release rate than the engine running with normal diesel. The BSFC for the engine running with neat biodiesel was higher than the engine running with normal diesel by up to 15%. It is also noticed that the physical properties of the biodiesel affects significantly the performance of the engine.

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Section: Brake Specific Fuel Consumptionmentioning

confidence: 99%

Combustion and performance characteristics of CI (compression ignition) engine running with biodiesel

Tesfa

Mishra

Zhang

et al. 2013

Energy

144

View full text Add to dashboard Cite

show abstract

“…Technically speaking, all these effects result in longer delays in fuel ignition (Xue et al, 2011) and change the heat release rate curve, the pressure curve, and the exhaust gas temperature (Utlu and Koçak, 2008;Aydin and Bayindir, 2010;Xue et al, 2011). As a consequence, the brake specific fuel consumption (BSFC) increases (Ramadhas et al, 2004(Ramadhas et al, , 2005Özkan et al, 2005;Haşimoğlu et al, 2008;Altun, 2011), though the smokiness lowers to 50% (Utlu and Koçak, 2008;Qi et al, 2009;Pal et al, 2010;Xue et al, 2011) due to the increased availability of oxygen in the biodiesel, which promotes the combustion process and soot oxidation (Qi et al, 2009;Xue et al, 2011). From a technical point of view, the modifications to engines to be powered by biodiesel are minimal if not absent (Meher et al, 2006;Fazal et al, 2011).…”

mentioning

confidence: 99%

Durability test on an agricultural tractor engine fuelled with pure biodiesel (B100)

Bietresato¹,

Friso²

2014

Turk J Agric For

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The performance of a 118-kW tractor fuelled by pure biodiesel was monitored during a long-term field experiment with\ud approximately 800 h of engine function. The objective was to demonstrate that B100, a pure biodiesel fuel, is a viable alternative to\ud traditional diesel oil in terms of long-term mechanical reliability. A bench test on the new engine, performed by attaching a test stand to\ud the power take-off of the tractor, showed an expected reduction in power (–9%) and torque (–7%) and an increase in specific consumption\ud (+13%) when biodiesel was used as a complete substitute to diesel oil. Furthermore, with the same setup, the exhaust gas had a Bosch\ud smoke index equal to 50% of the value for the same engine fuelled with diesel oil. After these initial tests, the tractor was set up for\ud normal field operations, in which both the engine curves and lubricant quality were periodically monitored. These surveys indicated\ud no significant reduction in engine performance; however, the lubricant was consequently diluted and contaminated by biodiesel, which\ud caused the lubricant properties to considerably worsen. However, on the basis of the chemical–physical analysis, reducing the oil\ud change interval from 200 h (manufacturer’s indications for the engine when operating with diesel oil) to 100 h would compensate for\ud this progressive quality decline. At the end of the trials, the engine was disassembled to check the condition of its components; wear\ud and lacquer-like coating phenomena were observed, and their levels were acceptable. The obtained results demonstrated that B100\ud can effectively substitute for diesel oil in a standard compression-ignition engine: the power change is not perceptible during normal\ud operation of a tractor, and no particular problem will arise in the engine during its life if the lubricant is changed every 100 h

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“…Usta [18] also found similar results when using tobacco seed oil in a four-cylinder turbo-charged diesel engine. Furthermore, negligible variation in engine power and torque between biodiesel and petroleum diesel has also been found [19]. More interesting results have been reported by Haşimoğin et al [20] while using waste cooking oil biodiesel in a four-cylinder turbo-charged diesel engine operating between 1100 and 2800 rpm.…”

Section: Engine Performancementioning

confidence: 63%

Performance and Emission Profile of Micro-Algal Biodiesel in Compression Ignition Engine

Eloka‐Eboka

Inambao

2017

JERA

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Abstract. Micro-algae are a large and diverse group of simple typically autotrophic organisms which have the potential to produce greater amounts of non-polar lipids and biomass than most terrestrial biodiesel feedstocks. Having emerged as one of the most promising sources for biodiesel production, they are gaining research interests in the current energy scenario due to their phenomenal growth potential (< 21 days log phase) in addition to relatively high lipids production which are also excellent source of biodiesel. In this study, engine performance and emission profile was performed using biodiesel fuels and blends from micro-algal technology in a compression ignition engine. The technology of micro-algae involved open pond cultivation and the use of photo-bioreactor model BF-115 Bioflo/celli Gen made in the US of 14 litre capacity (200 Lux light intensity) and flowrate of 2.5L/min. The micro-algal species used were Chlorella vulgaris Scenedesmus obliquus, Senechococus spp and Duneliella spp. The biodiesel produced were blended with conventional diesel (AGO) at different proportions. The performance parameters evaluated include: engine power, torque, brake specific fuel consumption (BSFC), smoke opacity, thermal gravimetry, thermal efficiency, exhaust gas temperatures and lubricity while the varying effects of emission pollutants during combustion were also studied. Results showed that viscosity, density and lubricity have significant effects on engine output power and torque than when throttled with AGO which was used as control. Combustion efficiency and emission profile were better than the AGO due to the oxygenated nature of the micro-algal biodiesel which brought about complete combustion. A striking deduction arrived is that oxygen content of the algal biodiesel had direct influence on smoke opacity and emissions in the engine and also thermo-gravimetrically stable for other thermal applications. The engine tests (BSFC, BTE, ThE, MechE, EGT) and overall emissions (CO 2 , CO, VOCs, HC, SOx, NOx) were within acceptable limits and comparable with AGO. The implication of the study is that Micro-algal technology is feasible and can revolutionize development in biodiesel industry.

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Biodiesel production through hydrodynamic cavitation and performance testing

Cited by 137 publications

References 16 publications

Combustion and performance characteristics of CI (compression ignition) engine running with biodiesel

Combustion and performance characteristics of CI (compression ignition) engine running with biodiesel

Durability test on an agricultural tractor engine fuelled with pure biodiesel (B100)

Performance and Emission Profile of Micro-Algal Biodiesel in Compression Ignition Engine

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