Engine performance using emulsified diesel fuel

Alahmer, Ali; Yamin, Jehad; Sakhrieh, Ahmad; Hamdan, M. A.

doi:10.1016/j.enconman.2009.11.044

Cited by 220 publications

(104 citation statements)

References 5 publications

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“…Lower heating value is an another important properties in fuel to produce a better engine performance and engine emission. Fuel conversion efficiency or brake thermal efficiency of the engine is the ratio of brake power to the fuel power where the fuel power are related to the lower heating value [18]. The relation was explained in eq.…”

Section: Diesel Euro 2mmentioning

confidence: 99%

Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

et al. 2016

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Abstract. Diesel engine is known as the most efficient engine with high efficiency and power but always reported as high fuel emission. Malaysia National Automotive Policy (NAP) was targeting to improve competitive regional focusing on green technology development in reducing the emission of the engine. Therefore, ethanol was introduced to reduce the emission of the engine and while increasing its performance, Palm methyl ester was introduced as blend enhancer to improve engine performance and improve diesel-ethanol blends stability. This paper aimed to study the characteristics of the blends and to prove the ability of palm-methyl-ester as co-solvent in ethanol-diesel blends. Stability and thermophysical test were carried out for different fuel compositions. The stability of dieselethanol blended was proved to be improved with the addition of PME at the longer period and the stability of the blends changed depending on temperature and ethanol content. Density and viscosity of diesel-ethanol-PME blends also give higher result than diesel-ethanol blends and it's proved that PME is able to increase density and viscosity of blends. Besides, heating value of the blends also increases with the increasing PME in diesel-ethanol blends.

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Section: Diesel Euro 2mmentioning

confidence: 99%

Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

et al. 2016

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“…This effect is attributed to the high latent heat of vaporization and specific heat capacity of the injected water, which result in lower flame temperature. Since the formation reaction of NO x has a high activation energy as indicated Farag, Kosaka, Bady and Abdel-Rahman, Journal of Thermal Science and Technology, Vol.12, No.1 (2017) by Turns (1999), the low flame temperature leads to a reduction in NO x emissions (Armas et al, 2005, Ghojel et al, 2006, Alahmer et al, 2010, Subramanian, 2011, Ma et al, 2014. The other effect of water injection is the cooling of the intake charge.…”

Section: Introductionmentioning

confidence: 99%

Effects of intake and exhaust manifold water injection on combustion and emission characteristics of a DI diesel engine

Farag

Kosaka

Bady

et al. 2017

JTST

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Water injection is a technique that has been used for decades to control the combustion and emissions in diesel engines. The effects of water injection at the intake and exhaust manifolds on the combustion and emission characteristics of a direct injection diesel engine are studied in this work. Water injection in the intake manifold increases engine heat losses. Therefore, waste heat in exhaust gases is used to vaporize water before combustion and prevent the water-cooling effect. The injection of 40 mg/cycle of water into the intake and exhaust manifolds were tested with exhaust gas recirculation (EGR) ratios of 10% and 25%. The fuel injection timing, quantity, and engine speed were maintained at constant values to keep the cylinder combustion condition constant. The results show that the exhaust manifold water injection improves engine performance and combustion characteristics and reduces emissions compared to intake manifold water injection. The peak improvement is achieved at exhaust manifold water injection at 25% EGR where the reduction in the brake specific fuel consumption (bsfc) is about 5%, while the increase in the indicated mean effective pressure (IMEP) and the indicated thermal efficiency (ITE) is by 7% and 3%, respectively. On the other hand, the maximum reduction in soot was obtained with exhaust manifold water injection at 10% EGR ratio with reduction ratios of 55%. The intake manifold water injection gives the lowest NO x emissions with a 88% reduction ratio. The exhaust manifold injection is the recommended technique for water injection to improve engine performance and reduce emissions to avoid the disadvantages of the previously applied techniques.

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“…The stringent policies in many European countries have alerted both heavy and light engine manufacturers to introduce the engines that can fulfil clean and green technology. In order to pursue this matter particularly in combustion efficiency, several strategies and methodologies have been made such as the development of internal combustion engine designs; combustion chamber and intake manifold, injection strategies and elevated injection pressure pump and dual strategy [2]. Numerous researchers reported that the global energy demand will increase progressively, e.g.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on dissimilar guide vane design with SCC piston for air and emulsified biofuel mixing improvement

et al. 2016

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Abstract. Crude palm oil (CPO) is one of the most potential biofuels that can be applied in the conventional diesel engines, where the chemical properties of CPO are comparable to diesel fuel. However, its higher viscosity and heavier molecules can contributes to several engine problems such as low atomization during injection, carbon deposit formation, injector clogging, low mixing with air and lower combustion efficiency. An emulsification of biofuel and modifications of few engine critical components have been identified to mitigate the issues. This paper presents the effects of dissimilar guide vane design (GVD) in terms of height variation of 0.25R, 0.3R and 0.35R at the intake manifold with shallow depth re-entrance combustion chamber (SCC) piston application to the incylinder air flow characteristics improvement. The simulation results show that the intake manifold with GVD improved the performance of the air flow characteristic particularly swirl, tumble and cross tumble ratios from the intake manifold to the engine. The GVD with the height of 0.3R was found to be the optimum design with respect to the overall improvement of the air flow characteristic. The improvement of the air flow characteristic with the application of GVD and SCC piston in the engine was expected to contribute to a better air fuel mixing, fuel atomization and combustion efficiency of the engine using emulsified biofuel as a source of fuel.

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Engine performance using emulsified diesel fuel

Cited by 220 publications

References 5 publications

Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

Effects of intake and exhaust manifold water injection on combustion and emission characteristics of a DI diesel engine

Numerical study on dissimilar guide vane design with SCC piston for air and emulsified biofuel mixing improvement

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