Simulation of compression engine powered by Biofuels

Hamdan, M. A.; Khalil, R. Haj

doi:10.1016/j.enconman.2009.10.037

Cited by 21 publications

(11 citation statements)

References 17 publications

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“…As methyl esters and their blends had smaller ignition delay, combustion was initiated well before TDC was reached. This increased the compression work and reduced the brake thermal efficiency of the engine [40]. The start of heat release occured well before TDC for methyl esters and their blends [41], which causes appreciable deviation from the ideal cycle, hence lower thermal efficiency.…”

Section: Resultsmentioning

confidence: 99%

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

Bhaskar¹,

Sendilvelan²,

Muthu³

et al. 2016

J. MECH. ENG. SCI.

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In this work, biodiesel obtained from the transesterfication of Jatropha seeds and Fish wastes is used as an alternative fuel to diesel in stationary single cylinder diesel engines. The biodiesel obtained has good ignition ability due to its relatively high cetane number compared to that of conventional diesel fuel. The performance, combustion and emission tests using Jatropha Oil Methyl Ester (JOME), Fish Oil Methyl Ester (FOME) and their blends (20% JOME and 20% FOME) with diesel were carried out at constant speed and variable loads condition. The results showed that both blends could be used as fuels for diesel engine without any major modification on the engine. Carbon monoxide (CO), UBHC and smoke emissions were observed to be lesser at all loads for both the blends compared to diesel fuel, while NOx emission was slightly higher. JOME blend was found to be better than FOME blend.

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Section: Resultsmentioning

confidence: 99%

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

Bhaskar¹,

Sendilvelan²,

Muthu³

et al. 2016

J. MECH. ENG. SCI.

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“…The basic governing equations needed for the simulation of the software are taken from the previous work of Hamdan and Khalil [19] and are given below. (1)…”

Section: Simulation Modelmentioning

confidence: 99%

An Experimental and Numerical Investigation of the Performance, Combustion and Emission Characteristics of a Diesel Engine Fueled with Jatropha Biodiesel

2014

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The effect of addition of jatropha biodiesel to mineral diesel on the performance and emission characteristics of a conventional compression ignition engine have been experimentally investigated and compared with simulated data using Diesel-RK software. The experiments were carried out using pure diesel (B0) and pure jatropha biodiesel (JB100) as fuels. The performance characteristics shows that brake specific fuel consumption (BSFC) increases and brake thermal efficiency decreases with the use of jatropha biodiesel. Experimentally, pure diesel has maximum efficiency 29.6%, where as pure biodiesel has maximum efficiency of 21.2%. In the simulation, the pure diesel has maximum efficiency 30.3% where as pure jatropha biodiesel has the maximum efficiency of 27.5%. In respect of emission characteristics, NO x emission is found to increase with load as well as use of biodiesel in both experimental and simulation study. After the successful validation of the numerical study with the experimental, another simulation was done, where the performance, combustion and emission characteristics of the same engine fueled with pure diesel (B0), pure jatropha biodiesel (JB100) and 50% jatropha blend (JB50) were derived. In the numerical study it is found that, with the use of jatropha biodiesel the BSFC increases whereas brake thermal efficiency decreases. Combustion characteristics show an increase in peak cylinder pressure and a decrease in ignition delay period with the increase in biodiesel share in the blends; whereas the emission of NO x and CO 2 increases; smoke and PM emission decreases for the same.

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“…Several recent studies on diesel engines have revealed that the use of biodiesel can reduce unburned hydrocarbon (HC), soot emissions and carbon monoxide (CO) emission while relating a small NOx increase [2], [3], [4], [5], [6], [7], [8], [9], [10]. Most of these studies treat the engine as a "black box" comparing standard fuel and biodiesel (pure or blended) mainly in terms of emissions, concluding on important reductions.…”

Section: Introductionmentioning

confidence: 99%

Using one-dimensional modeling to analyse the influence of the use of biodiesels on the dynamic behavior of solenoid-operated injectors in common rail systems: Detailed injection system model

Payri

Salvador²,

Martí-Aldaraví³

et al. 2012

Energy Conversion and Management

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A combined experimental and computational investigation has been performed in order to evaluate the influence of physical properties of biodiesel on the injection process in a common-direct injection system with second generation solenoid injectors. For that purpose, after a complete characterization of the system, which involved mechanical and hydraulic characterization, a one-dimensional model has been obtained and extensively validated. Simulations have then been performed with a standard Diesel and a 100% rape methyl ester (RME) biodiesel which allowed a comparison and analysis of the dynamic response of the injector to be done. Different injection strategies involving main injection and main plus post-injection have been used to explore the impact of the use of biodiesel on the performance and stability of solenoid injectors.As far as the dynamic response of the injector is concerned, the results obtained have clearly shown that the use of biodiesel affects the dynamic response of the needle, especially at low injection pressures. The behavior of the system under multi-injection strategies (main plus post injection) has been also evaluated determining for different operating conditions (injection pressures and backpressures) the minimum dwell time between injections to assure a stable behavior in the injection process (mass flow rate).Important differences have been found between biodiesel and standard diesel in this critical parameter at low injection pressures, becoming less important at high injection pressure. Finally, a modification on the injector hardware has been proposed in order to compensate these differences.

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Simulation of compression engine powered by Biofuels

Cited by 21 publications

References 17 publications

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

Performance and emission characteristics of compression ignition engine using methyl ester blends of jatropha and fish oil

An Experimental and Numerical Investigation of the Performance, Combustion and Emission Characteristics of a Diesel Engine Fueled with Jatropha Biodiesel

Using one-dimensional modeling to analyse the influence of the use of biodiesels on the dynamic behavior of solenoid-operated injectors in common rail systems: Detailed injection system model

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