Combustion, performance and emission analysis of diesel engine fuelled by higher alcohols (butanol, octanol and heptanol)/diesel blends

Nour, Mohamed; Attia, Ali M.A.; Nada, S.A.

doi:10.1016/j.enconman.2019.01.105

Cited by 200 publications

(99 citation statements)

References 54 publications

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“…m and m B are the mass of in-cylinder charge and the injected fuel. The definitions of the different phases of combustion analysis were mainly according to the methodology presented by Nour et al 43 Ignition delay was defined as the CA interval from the start of fuel injection (SOI) to the start of combustion (SOC). The total combustion duration was the CA interval from SOC to the end of combustion (EOC).…”

Section: Combustion Characteristicsmentioning

confidence: 99%

Biodiesel/butanol blends as a pure biofuel excluding fossil fuels: Effects on diesel engine combustion, performance, and emission characteristics

Huang

Luo

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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Although both biodiesel and n-butanol are excellent renewable biofuels, most of the existing research works merely use them as the additives for petroleum diesel. As the main fuel properties of biodiesel and n-butanol are complementary, the biodiesel/ n-butanol blends are promising to be a pure biomass-based substitute for diesel fuel. In this paper, the application of the biodiesel/ n-butanol blends on an agricultural diesel engine was comprehensively investigated, in terms of the combustion, performance, and emission characteristics. First, the biodiesel/ n-butanol blends with 10%, 20%, and 30% n-butanol by weight were prepared and noted as BBu10 (10 wt% n-butanol + 90 wt% biodiesel), BBu20 (20 wt% n-butanol + 80 wt% biodiesel), and BBu30 (30 wt% n-butanol + 70 wt% biodiesel). It was found that adding 30 wt% n-butanol to biodiesel can reduce the viscosity by 39.3% and increase the latent heat of vaporization by 57.3%. Then the engine test results showed that with the addition of n-butanol to biodiesel, the peak values of the cylinder pressure and temperature of the biodiesel/ n-butanol blends were slightly decreased, the peak values of the pressure rise rate and heat release rate of the blends were increased, the fuel ignition was delayed, and the combustion duration was shortened. BBu20 has the approximate ignition characteristics with diesel fuel. Both the brake thermal efficiency and the brake-specific fuel consumption of BBu30 were increased by the average percentages of 2.7% and 14.9%, while NO x, soot, and CO emissions of BBu30 were reduced by the average percentages of 17.6%, 34.1%, and 15.4%, compared to biodiesel. The above variations became more evident as the n-butanol proportion increased.

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Section: Combustion Characteristicsmentioning

confidence: 99%

Biodiesel/butanol blends as a pure biofuel excluding fossil fuels: Effects on diesel engine combustion, performance, and emission characteristics

Huang

Luo

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Fuel oxygen content has been introduced as an influential factor in engine performance and emissions [20][21][22][23][24][25]. Song et al [23] investigated the effect of oxygen content on combustion in single-and multi-cylinder diesel engines using rapeseed biodiesel to vary the oxygen content of the diesel used.…”

Section: Introductionmentioning

confidence: 99%

Exergy analysis of a diesel engine with waste cooking biodiesel and triacetin

Odibi

Babaie

Zare

et al. 2019

Energy Conversion and Management

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This study uses the first and second laws of thermodynamics to investigate the effect of oxygenated fuels on the quality and quantity of energy in a turbo-charged, common-rail sixcylinder diesel engine. This work was performed using a range of fuel oxygen content based on diesel, waste cooking biodiesel, and a triacetin. The experimental engine performance and emission data was collected at 12 engine operating modes. Energy and exergy parameters were calculated, and results showed that the use of oxygenated fuels can improve the thermal efficiency leading to lower exhaust energy loss. Waste cooking biodiesel (B100) exhibited the lowest exhaust loss fraction and highest thermal efficiency (up to 6% higher than diesel). Considering the exergy analysis, lower exhaust temperatures obtained with oxygenated fuels resulted in lower exhaust exergy loss (down to 80%) and higher exergetic efficiency (up to 10%). Since the investigated fuels were oxygenated, this study used the oxygen ratio (OR) instead of the equivalence ratio to provide a better understanding of the concept. The OR has increased with decreasing engine load and increasing engine speed. Increasing the OR decreased the fuel exergy, exhaust exergy and destruction efficiency. With the use of B100, there was a very high exergy destruction (up to 55%), which was seen to decrease with the addition of triacetin (down to 29%).

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“…The CO, UBHC, smoke, torque and brake power reduction in biodiesel blends were comparable to conventional diesel, whereas the EGT, NO and CO 2 increased for biodiesel. Nour et al 20 carried out research on a diesel engine fuelled with biodiesel-higher alcohol blends. The study reported that biodiesel-higher alcohol blends had high stability with no phase separation.…”

Section: Introductionmentioning

confidence: 99%

Influence of Moringa oleifera biodiesel–diesel–hexanol and biodiesel–diesel–ethanol blends on compression ignition engine performance, combustion and emission characteristics

Subramanian

Natarajan

2020

RSC Adv.

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Combustion, performance and emission analysis of diesel engine fuelled by higher alcohols (butanol, octanol and heptanol)/diesel blends

Cited by 200 publications

References 54 publications

Biodiesel/butanol blends as a pure biofuel excluding fossil fuels: Effects on diesel engine combustion, performance, and emission characteristics

Biodiesel/butanol blends as a pure biofuel excluding fossil fuels: Effects on diesel engine combustion, performance, and emission characteristics

Exergy analysis of a diesel engine with waste cooking biodiesel and triacetin

Influence of Moringa oleifera biodiesel–diesel–hexanol and biodiesel–diesel–ethanol blends on compression ignition engine performance, combustion and emission characteristics

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