Effects of Ethanol Addition on Performance, Emission and Combustion of DI Diesel Engine Running at Different Injection Pressures

Kumar, Chandan; Athawe, M.; Aghav, Yogesh V.; Babu, M. K. Gajendra; Das, L.M.

doi:10.4271/2007-01-0626

Cited by 18 publications

(7 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The additives help for solubility of the blend, while they cannot improve the properties of the blend [21][22][23]. Additionally, the low flashpoint of the diesel-ethanol blends is an obstacle to the application of this fuel blend because studies in the literature clearly indicated that the presence of emulsifiers has no effect on flashpoint property [19].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of combustion, performance and emission characteristics of a diesel engine fuelled with diesel–biodiesel–alcohol blends

Ağbulut

Sarıdemir

Albayrak

2019

J Braz. Soc. Mech. Sci. Eng.

147

View full text Add to dashboard Cite

The purpose of this study is to investigate the impacts of diesel-biodiesel-alcohol blends on the combustion, performance and emissions characteristics of a single-cylinder diesel engine. Tests were conducted at different engine speeds of 1750, 2250, 2750 and 3250 rpm and under full load. In this study, different fuels [called as reference diesel (D100), 20 vol% cottonseed methyl ester (D80C20), 10 vol% ethanol (D90E10) and finally the ternary type of their derivations (D70C20E10)], were used. The experimental results showed that the highest reduction values were observed on CO emission by 42%, 30% and 8% for the D90E10, D70C20E10 and D80C20 fuels, respectively. These reductions for HC emission were achieved as 40%, 31% and 23% for the D90E10, D70C20E10 and D80C20, respectively. On the other hand, the reductions of NO x and CO 2 emissions were not sharp and varied between 2-7%. Besides the reductions on the exhaust emissions, biodiesel-ethanol blend presented better results in terms of HRR max and CP max than using biodiesel alone. Additionally, ignition delay of the biodiesel blends was longer than that of D100 fuel owing to their low cetane numbers. Combustion duration was shortened with the increment in engine speed because the turbulence increased in the combustion chamber at high engine speed. This case also improved the homogeneity of test fuels and increased the quality of the combustion process. As a consequence, this paper clearly reported that it is possible to achieve fewer emissions, the highest CP max values with the presence of ethanol in biodiesel fuels rather than using biodiesel alone for diesel engines.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental investigation of combustion, performance and emission characteristics of a diesel engine fuelled with diesel–biodiesel–alcohol blends

Ağbulut

Sarıdemir

Albayrak

2019

J Braz. Soc. Mech. Sci. Eng.

147

View full text Add to dashboard Cite

show abstract

“…Studies conducted at different injection pressures (200, 250, 300 and 350 bar) on different loading conditions showed that the higher injection pressure reduces CO and smoke emissions with respect to diesel fuel [14]. In this study E100 (100% ethanol fuel) can improve full load engine performance around whole engine speed range in a high compression ratio engine, compared to that of a base compression ratio engine operated on a premium gasoline [15].…”

Section: Combustion Of Ethanolmentioning

confidence: 79%

Performance and Emission Characteristics of Annona-Ethanol Blend Fuelled with Diesel Engine

R¹

2015

J Fundam Renewable Energy Appl

View full text Add to dashboard Cite

In this present work aims at evaluate the performance and emission characteristics of a diesel engine fueled with annona-ethanol blend as a fuel. A single cylinder water-cooled four stroke diesel engine was used. The ethanol is blended with Annona Methyl Ester (AME) in the proportions of 60-40, 55-45, 50-50, 45-55. The performance and emission characteristics of annona-ethanol blends are evaluated by operating the engine at different load conditions. The performance parameters such as Brake Specific Fuel Consumption (BSFC), Brake Thermal Efficiency (BTE) and Exhaust Gas Temperature (EGT) were evaluated. Further, the exhaust emissions such as oxides of nitrogen (NOx) unburned hydrocarbon (HC), carbon monoxide (CO) and smoke were measure. It is found that annona-ethanol blend (A-E-50-50) showed slight increase in brake thermal efficiency with the reduction of exhaust gas temperature. Further, it is found that the slight reduction in NOx emission and smoke emission. It is also found that reduction in HC and CO emission was achieved. Hence, it is concluded that A-E 50-50 can be used as alternate fuel for DI diesel engine without any major modification.

show abstract

“…Finally the combustion noise is increased due to higher cylinder pressure gradients and higher heat release rates presented in Figure 8 [18]. This is explained by the delayed combustion of the pilot injection which partially burns or even burns within the main injection.…”

Section: Fuel Impact On Emissions and Combustionmentioning

confidence: 83%

“…The high oxygen content can also lead to an over-lean mixture at low load when global equivalence ratio is already low. In this case the strong latent heat of vaporization can be an added negative point leading to a slow vaporisation, a lower flame temperature [13] and so an incomplete combustion and consequently higher HC and CO emissions [14][15][16][17][18]. A longer mixing process could also occurred due to the modified auto-ignition properties (poor Cetane Number of ethanol).…”

Section: Fuel Impact On Emissions and Combustionmentioning

confidence: 99%

Use of Ethanol/Diesel Blend and Advanced Calibration Methods to Satisfy Euro 5 Emission Standards without DPF

Magand

Pidol

Chaudoye

et al. 2011

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

View full text Add to dashboard Cite

Résumé -Utilisation d'un carburant Diesel éthanolé à l'aide de méthodes de calibration avancées afin de satisfaire les normes Euro 5 sans filtre à particules -L'utilisation des biocarburants s'est développée durant ces dernières années de façon importante afin de diversifier les sources d'énergies et de limiter la hausse des émissions de gaz à effet de serre du secteur des transports. L'un des carburants renouvelables les plus adaptés à une production de masse est l'éthanol. Celui-ci est aujourd'hui principalement utilisé dans les moteurs à allumage commandé, alors que la part des véhicules Diesel sur le marché européen est de l'ordre de 60 %. Ce constat nous a incité à proposer une formulation innovante utilisant de l'éthanol pour les applications Diesel. Les principaux verrous technologiques pour cette utilisation sont la miscibilité, la température d'éclair, la lubrification ou encore l'indice de cétane. Des travaux ont été réalisés pour optimiser la formulation contenant de l'éthanol, des biodiesels de première et seconde générations. Appliqué à un véhicule optimisé pour la norme Euro 4, ce carburant oxygéné a permis une diminution drastique des émissions de particules. Il a été cependant observé que les émissions de HC et de CO peuvent être problématiques tout autant que celles de NO x si les paramètres du contrôle moteur ne sont pas adaptés. Des analyses de combustion apportent une aide à la compréhension de ces résultats par l'étude du délai d'autoinflammation ou encore de la combustion de l'injection pilote. Ainsi, au banc moteur, des méthodes avancées de calibrations telles que les plans d'expériences ont été utilisées pour optimiser l'adéquation moteur/carburant. Une approche de type global a été proposée et comparée à une approche locale plus classique. Cette optimisation à chaud permet une réduction simultanée des émissions de NO x et de particules. Ces résultats laissent également présager une réduction du bruit de combustion et des émissions de CO 2 sur véhicule. Un banc moteur dynamique a été ensuite utilisé pour étudier plus en détail le potentiel de réduction des émissions polluantes. Le comportement d'un véhicule sur le cycle européen NEDC avec démarrage à froid a pu être reproduit. Différentes méthodologies innovantes, basées notamment sur l'optimisation simultanée des cartographies de base et des cartographies de correction à froid, sont présentées. Elles permettent d'adapter les réglages du moteur par rapport à l'impact que ce carburant alternatif peut avoir sur la combustion et l'activation du catalyseur ou les émissions de HC et CO à la source. Ces méthodes ont permis de limiter le travail sur véhicule au banc à rouleaux à la validation des résultats obtenus sur banc moteur et à l'optimisation finale des cartographies à froid. Cette étude a prouvé qu'il était possible de satisfaire les normes Euro 5 avec cette nouvelle formulation de carburant tout en conservant une configuration de véhicule Euro 4 sans filtre à particules. En définitive, ce carburant innovant apparaît comme une solution i...

show abstract

Effects of Ethanol Addition on Performance, Emission and Combustion of DI Diesel Engine Running at Different Injection Pressures

Cited by 18 publications

References 10 publications

Experimental investigation of combustion, performance and emission characteristics of a diesel engine fuelled with diesel–biodiesel–alcohol blends

Experimental investigation of combustion, performance and emission characteristics of a diesel engine fuelled with diesel–biodiesel–alcohol blends

Performance and Emission Characteristics of Annona-Ethanol Blend Fuelled with Diesel Engine

Use of Ethanol/Diesel Blend and Advanced Calibration Methods to Satisfy Euro 5 Emission Standards without DPF

Contact Info

Product

Resources

About