Effects of butanol blending and fumigation with Jatropha biodiesel on combustion, performance, and emissions of diesel engine

Gillani, Syed Ehtisham; İkhlaq, Muhammad; Khan, Modassir; Awan, Dawar; Hamza, Abdulhamid

doi:10.1007/s13762-020-02898-4

Cited by 13 publications

(11 citation statements)

References 56 publications

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“…Higher-alcohol-based oxygenated additives like hexanol, octanol and decanol have a less latent heat of evaporation compared to lower-chain alcohols due to the fact that when Jatropha biodiesel was blended with higher alcohols such as heptanol and decanol, it showed a reduction in BSFC compared to the biodiesel blend without oxygenated additives [125]. On the other hand, when Jatropha biodiesel was blended with lower-chain alcohols such as ethanol, butanol and pentanol, it showed an increase in BSFC compared to the biodiesel blend (without oxygenated additives) and diesel [120,122]. This increased BSFC might be caused due to the poor atomization quality of Jatropha in contrast to diesel [140].…”

Section: Effect On Brake-specific Fuel Consumptionmentioning

confidence: 99%

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Performance and Emission Characteristics of Second-Generation Biodiesel with Oxygenated Additives

et al. 2023

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Biofuels are environmental friendly renewable fuels, that can be directly used in a diesel engine. However, a few shortcomings like a higher density, viscosity, a lower calorific value and increase in NOx emissions, has caused researchers to look for fuel additives to improve the physiochemical properties of these fuels and to enhance their performance and reduce harmful emissions. It is for this reason that modern research is focused on blending oxygenated additives such as alcohols and ethers with different generations of biodiesel. Since most studies have covered the effect of alcohol on biodiesel, there are few studies which have investigated the effect of oxygenated additives such as alcohols and ethers, especially related to second-generation biodiesel. Moreover, the details of their composition and molecular structure are still lacking. Hence, this study focuses on the performance and emission characteristics of biodiesel with the inclusion of oxygenated additives (alcohols and ethers) of non-edible-oil-based second-generation blends. The reviewed results showed that Neem biodiesel with methanol or diethyl ether reduced brake-specific fuel consumption by 10%, increased brake thermal efficiency by 25% and reduced CO and HC emissions due to a higher oxygen content. Diethyl ether reduced NOx emissions as well by producing a cooling effect, i.e., a reduced in-cylinder temperature. The addition of heptane, butanol and di ethyl ether to Jatropha biodiesel showed an improved brake thermal efficiency and an increment in brake-specific fuel consumption (5–20%), with reduced HC and CO2 (3–12%) emissions. Calophyllum inophyllum biodiesel also showed impressive results in terms of improving efficiency and reducing emissions with addition of butanol, pentanol, decanol and hexanol. Other factors that influenced emissions are the cetane number, viscosity, density and the latent heat of evaporation of tested biodiesel blends. This review would help the research community and the relevant industries to consider an efficient biodiesel blend for future study or its implementation as an alternate fuel in diesel engines.

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Section: Effect On Brake-specific Fuel Consumptionmentioning

confidence: 99%

“…Blending biodiesel with an oxygenated additive that has a high latent heat of evaporation may cause poor air/fuel mixing and thus incomplete combustion, resulting in [109,110,116,117,122,128,133,138,145].…”

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confidence: 99%

Performance and Emission Characteristics of Second-Generation Biodiesel with Oxygenated Additives

et al. 2023

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“…The FAC profile of vegetable oil is required for determination of HLB value of surfactants presented in the vegetable oil (Najjar et al 2021). In continuation, the fuel properties of vegetable oil can also be correlated with fatty acid profile of vegetable oil (Gillani et al 2021).…”

Section: Fatty Acid Composition Of Vegetable Oilmentioning

confidence: 99%

“…The NO x formation is correlated with the ignition delay, NHRR, and the maximum in-cylinder pressure/temperature followed by the physiochemical properties of the Fig. 9 Variation in unburned hydrocarbon emission at different engine load for test blends injected fuel (Gillani et al 2021;Saravanan et al 2012). There is no positive impact of cetane improver (2-EHN) on the injected fuel fuels upon the formation of NO x but also, depends upon the nature of in-cylinder combustion (Singh D et al 2019).…”

Section: Oxide Of Nitrogen (No X ) Emissionmentioning

confidence: 99%

Experimental investigation of 2-EHN effects upon CI engine attributes fuelled with used cooking oil-based hybrid microemulsion biofuel

Kumar

Sarma

Kumar

2021

Int. J. Environ. Sci. Technol.

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In recent years, disposal of used cooking oil has drawn everyone attention due to its detrimental and hazardous effects upon health and environment. However, used cooking oil has great potential to be a fuel supplement after its appropriate processing for biofuel formulation, globally. Attributed to the various advantages of microemulsion-based hybrid biofuel (MHBF) technique, the present experimental investigation has focused to investigate the effects of used cooking oil (UCO)-based hybrid microemulsion biofuel (UCOMHBF), added with 2-ethylhexyl nitrate (2-EHN) (cetane enhancer) upon performance, combustion and emission characteristics of a 4-stroke single-cylinder CI engine. 2-EHN was added in UCOMHBF (UCO (55%) (vol.%), anhydrous ethanol (E) (28%) (vol.%) and 2-butanol (B) (17%)) in proportion of 500 (UCOMHBF500), 1000 (UCOMHBF1000) and 1500 (UCOMHBF1500) ppm, respectively. The brake-specific fuel consumption (BSFC) of CI engine test rig for UCOMHBF1000 was found 8% lower than UCOMHBF and B100 and 2.5% higher for UCOMHBF1500, respectively. Combustion delay was observed with MHBFs w.r.t petrodiesel, but improved combustion was observed with up to 1000 ppm addition of 2-EHN in UCOMHBF at full load condition. Addition of 1500 ppm 2-EHN in UCOMHBF showed uncontrolled flame propagation at the end of the compression stroke which resulted in incomplete combustion during power stroke. 2-EHN addition in UCOMHBF has also lowered the mean of nitrogen (NO x ) in the range of 2.06-33.33% w.r.t petrodiesel. Hence, it can be concluded that UCOMHBF1000 has shown the superior characteristics from all other UCOMHBFs.

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“…Despite the fact that the majority of harmful emissions are mitigated when using biodiesel compared to petroleum diesel, but NO X emissions were found higher for biodiesel in many studies [12][13][14]. Gillani et al [15] studied the engine performance, combustion, and diesel engine emissions fueled with diesel, Jatropha biodiesel (JBD), Jatropha-butanol blended fuel and Jatropha biodiesel with fumigated butanol. The pure JBD showed a 5% reduction in BTE and a 17% increase in BSFC compared to pure diesel combustion.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nitromethane and Jatropha Biodiesel on the Combustion, Performance and Emission Characteristics of Diesel Engine

Berenjestanaki

Hussain²

2021

IJAME

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The experimental work reported has been carried out in two parts; Jatropha biodiesel production and engine test. The engine test has been carried out on a direct injection, single-cylinder, water-cooled stationary diesel engine. Several diesel fuel blends which contain 10% and 20% by volume of JBD and 1% and 3% nitromethane were prepared. The effects of these blends on the combustion, performance, and emission characteristics of diesel engine were studied. The tests were performed under constant speed and varying load conditions without altering injection timing. A maximum increase of 11.73%, 3.2 % and 7.68 % in the brake thermal efficiency, the brake specific fuel consumption and exhaust gas temperature were achieved respectively for 20% Jatropha biodiesel and 3% nitromethane at full engine load. Compared to the pure diesel operation, the peak in-cylinder pressure of blended fuels was lower at the full load conditions. Also, the maximum net heat release rate of blended fuels was lower than that of diesel at all loading conditions. In regards to the engine emissions, the results showed that the blended fuels reduced carbon monoxide at 18.6–28.9% and unburned hydrocarbon of 7.5-24.2%, while increased the emission of nitrogen oxides at 6.9–14.3% and carbon dioxide at 4.3-10.5%.

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Effects of butanol blending and fumigation with Jatropha biodiesel on combustion, performance, and emissions of diesel engine

Cited by 13 publications

References 56 publications

Performance and Emission Characteristics of Second-Generation Biodiesel with Oxygenated Additives

Performance and Emission Characteristics of Second-Generation Biodiesel with Oxygenated Additives

Experimental investigation of 2-EHN effects upon CI engine attributes fuelled with used cooking oil-based hybrid microemulsion biofuel

Effect of Nitromethane and Jatropha Biodiesel on the Combustion, Performance and Emission Characteristics of Diesel Engine

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