Performance and NOx emissions of a diesel engine fueled with biodiesel-diesel-water nanoemulsions

Koc, A. Bulent; Abdullah, Mokhtar

doi:10.1016/j.fuproc.2012.09.039

Cited by 150 publications

(59 citation statements)

References 28 publications

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“…It can also be due to the fuel spray angle 18° (see Figure 10) which indicates finer droplet size resulting in better combustion. These results agree with Fahd et al [45] and Koc and Abdullah [46] in the power reduction in the emulsified water fuel due to the lower heating value.…”

Section: Cs-e20supporting

confidence: 92%

“…Figure 11 shows that the exhaust gas temperature of CS-E20 and CS-ME20 is lower than that of CS-B100 by 24.5% and 9.6% respectively. The decrease in the exhaust gas temperature of the emulsion fuels is due to the lower heating value and the water content, which absorbed some heat in the combustion process [45,46]. The reduction in the exhaust gas temperature significantly reduces the NO x emission from the emulsion fuels which dropped by 71.9% and 60.4% for CS-E20 and CS-ME20 respectively.…”

Section: Engine Testmentioning

confidence: 99%

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Biofuels from the Fresh Water Microalgae Chlorella vulgaris (FWM-CV) for Diesel Engines

2014

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This work aims to investigate biofuels for diesel engines produced on a lab-scale from the fresh water microalgae Chlorella vulgaris (FWM-CV). The impact of growing conditions on the properties of biodiesel produced from FWM-CV was evaluated. The properties of FWM-CV biodiesel were found to be within the ASTM standards for biodiesel. Due to the limited amount of biodiesel produced on the lab-scale, the biomass of dry cells of FWM-CV was used to yield emulsified water fuel. The preparation of emulsion fuel with and without FWM-CV cells was conducted using ultrasound to overcome the problems of large size microalgae colonies and to form homogenized emulsions. The emulsified water fuels, prepared using ultrasound, were found to be stable and the size of FWM-CV colonies were effectively reduced to pass through the engine nozzle safely. Engine tests at 3670 rpm were conducted using three fuels: cottonseed biodiesel CS-B100, emulsified cottonseed biodiesel water fuel, water and emulsifier (CS-E20) and emulsified water containing FWM-CV cells CS-ME20. The results showed that the brake specific fuel consumption (BSFC) was increased by about 41% when the engine was fueled with emulsified water fuels compared to CS-B100. The engine power, exhaust gas OPEN ACCESSEnergies 2014, 7 1830 temperature, NO x and CO 2 were significantly lower than that produced by CS-B100. The CS-ME20 produced higher power than CS-E20 due to the heating value improvement as a result of adding FWM-CV cells to the fuel.

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Section: Cs-e20supporting

confidence: 92%

Section: Engine Testmentioning

confidence: 99%

Biofuels from the Fresh Water Microalgae Chlorella vulgaris (FWM-CV) for Diesel Engines

2014

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“…It is observed that the NO X emission from palm oil biodiesel is higher than diesel at all loads. Higher inbuilt oxygen in the palm oil biodiesel and pentanol blends promotes combustion and raises the temperature during combustion (Koc et al, 2013;Choi et al, 2015). NO X emission reduces with increase in pentanol conducted by Atmanli (2016a) and Yuvarajan and Masuswamy (2017).…”

Section: Oxides Of Nitrogen Emission (No X )mentioning

confidence: 99%

Emissions Analysis on Diesel Engine Fueled With Palm Oil Biodiesel and Pentanol Blends

Radhakrishnan¹

2017

JOPR

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EMISSIONS ANALYSIS ON DIESEL ENGINE FUELED WITH PALM OIL BIODIESEL AND PENTANOL BLENDS ITRODUCTIONEscalating environmental issues coupled with depletion in petroleum resources have paved the way for global efforts to search for eco-friendly fuels (Amirnordin et al., 2013). Automobiles are widely acknowledged as the major source of greenhouse gas emissions. Diesel engines play a significant role in the power and automobile sectors of industry largely because of its durability and economy. However, diesel engines emit higher emissions when fueled with diesel.A lower emission alternative is needed to lessen the demerits of fossil fuel (Harmiwati and Rahmad, 2015). Biodiesel is made up of long chain alkyl esters produced by reacting lipids with alcohols (Lam et al., 2011). Biodiesel can be deployed in diesel engines without any modification. It can also be blended with petroleum diesel. In spite of its many advantages, the major drawbacks of biodiesel concern higher NO X emissions, viscosity and density and lower calorific value (Jaat et al., 2014). Many studies have proven that by appending higher alcohols to biodiesel much of the drawbacks are reduced (Karabektas et al., 2009; Murcak et al., 2013;Wang et al., 2015). Higher alcohols such as butanol, hexanol and pentanol are incorporated in biodiesel as an oxygenated additive (Rakopoulos et al., 2010). Blending, fumigation, emulsion and dual fuel injection are the existing techniques to append alcohols to fuel. Alcohols can be blended to liquid fuel in the range of 10%-30% by volume. Many DOI: https://doi.org/10.21894/jopr.2017DOI: https://doi.org/10.21894/jopr. .2903 JOURNAL OF OIL PALM RESEARCH 29 (3) (SEPTEMBER 2017)

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“…This is shown that the lower biodiesel diesel blends ratio will increase the performance and reduce the fuel consumption. Koc et al (2013) investigated the effects of water concentration in a biodiesel nanoemulsion fuel on engine performance and exhaust emissions of a diesel engine. Biodiesel nanoemulsions containing 5%, 10% and 15% water were used for the engine tests and the results were compared with B5, B20 and certified diesel fuels.…”

Section: Introductionmentioning

confidence: 99%

Brake Torque of a Diesel Engine Fuelled with Biodiesel and Diesel

Shirneshan¹

2013

IJRSE

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Brake torque of a diesel engine was investigated by considering the effects of biodiesel (from waste cooking oil) in fuel mixture (biodiesel and diesel fuel) on this performance characteristic. The experiments were done on a 4 cylinder direct-injection diesel engine. Results showed that by the use of biodiesel brake power decreases up to17%. Also results showed that the increase in engine load appeared to cause an increase in the brake power up to 69%. On the other hand by increasing rpm of the engine brake power increases continuously up to speed 1800 to 2000 rpm and after that drops.

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Performance and NOx emissions of a diesel engine fueled with biodiesel-diesel-water nanoemulsions

Cited by 150 publications

References 28 publications

Biofuels from the Fresh Water Microalgae Chlorella vulgaris (FWM-CV) for Diesel Engines

Biofuels from the Fresh Water Microalgae Chlorella vulgaris (FWM-CV) for Diesel Engines

Emissions Analysis on Diesel Engine Fueled With Palm Oil Biodiesel and Pentanol Blends

Brake Torque of a Diesel Engine Fuelled with Biodiesel and Diesel

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