Systematic assessment of combustion characteristics of biofuels and emulsions with water for use as diesel engine fuels

Crookes, Roy J.; Kiannejad, F.; Nazha, Marouan A. A.

doi:10.1016/s0196-8904(96)00202-6

Cited by 87 publications

(33 citation statements)

References 2 publications

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“…Most biodiesel oils, particularly of the nonedible type can be used as fuel in diesel engines. They contain significant amount of oxygen [2,3]. The idea of using vegetable oils as fuel for diesel engine is not new.…”

Section: Introductionmentioning

confidence: 99%

Investigations on Performance and Emission Characteristics of Diesel Engine with Biodiesel (Jatropha Oil) and Its Blends

Pandhare

Padalkar²

2013

Journal of Renewable Energy

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This paper presents the performance of biodiesel blends in a single-cylinder water-cooled diesel engine. All experiments were carried out at constant speed 1500 rpm and the biodiesel blends were varied from B10 to B100. The engine was equipped with variable compressions ratio (VCR) mechanism. For 100% Jatropha biodiesel, the maximum fuel consumption was 15% higher than that of diesel fuel. The brake thermal efficiency for biodiesel and its blends was found to be slightly higher than that of diesel at various load conditions. The increase in specific fuel consumption ranged from 2.75% to 15% for B10 to B100 fuels. The exhaust gas temperature increased with increased biodiesel blend. The highest exhaust gas temperature observed was 430 ∘ C with biodiesel for load conditions 1.5 kW, 2.5 kW, and 3.5 kW, where as for diesel the maximum exhaust gas temperature was 440 ∘ C. The CO 2 emission from the biodiesel fuelled engine was higher by 25% than diesel fuel at full load. The CO emissions were lower with Jatropha by 15%, 13%, and 13% at 1.5 kW, 2.5 kW, and 3.5 kW load conditions, respectively. The NO emissions were higher by 16%, 19%, and 20% at 1.5 kW, 2.5 kW, and 3.5 kW than that of the diesel, respectively.

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Section: Introductionmentioning

confidence: 99%

Investigations on Performance and Emission Characteristics of Diesel Engine with Biodiesel (Jatropha Oil) and Its Blends

Pandhare

Padalkar²

2013

Journal of Renewable Energy

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“…Vegetable oils can be produced even on a small scale for on-farm utilization to run tractors, pumps and small engines for power generation/irrigation. Suitability of vegetable oils as fuels for diesel engines depends on their physical, chemical and combustion characteristics as well as the type of engine used and operating conditions [8].…”

Section: Introductionmentioning

confidence: 99%

Performance and emissions characteristics of Jatropha oil (preheated and blends) in a direct injection compression ignition engine

Agarwal

Ágarwal

2007

Applied Thermal Engineering

493

171

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“…Although the properties vary from one type of oil to another, this general comparison with the diesel fuel is valid for all [13]. The use of vegetable oils "as is" for fueling diesel engines is not impossible.…”

Section: Vegetable Oils As Diesel Fuelmentioning

confidence: 99%

Performance and emission studies on an agriculture engine on neat Jatropha oil

2010

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Diesel engines have proven their utility in the transportation, agriculture, and power sectors in India. They are also potential sources of decentralized energy generation for rural electrification. Concerns on the long-term availability of petroleum diesel and the stringent environmental norms have mandated the search for a renewable alternative to diesel fuel to address these problems. Vegetable oils have been considered good alternatives to diesel in the past couple of years. However, there are many issues related to the use of vegetable oils in diesel engine. Jatropha curcas has been promoted in India as a sustainable substitute to diesel fuel. This study aims to develop a dual fuel engine test rig for evaluating the potential suitability of Jatropha oil as diesel fuel and for determining the performance and emission characteristics of an engine with Jatropha oil. The experimental results suggest that engine performance using Jatropha oil is slightly inferior to that of diesel fuel. The thermal efficiency of the engine was lower, while the brake-specific fuel consumption was higher with Jatropha oil compared with diesel fuel. The levels of nitrogen oxides (NOx) from Jatropha oil during the entire duration of the experiment were lower than those of diesel fuel. The reduction of NOx was found to be an important characteristic of Jatropha oil as NOx emission is the most harmful gaseous emission from engines; as such, its reduction is always the goal of engine researchers and makers. During the entire experiment, carbon monoxide (CO), hydrocarbon (HC), and carbon dioxide (CO 2 ) emissions in the case of using Jatropha oil were higher than when diesel fuel was used. The higher density and viscosity of Jatropha oil causes lower thermal efficiency and higher brakespecific fuel consumption. The performance and emission characteristics found in this study are significant for the study of replacing diesel fuel from fossils with Jatropha oil in rural India, where the availability of diesel has always been a problem.

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Systematic assessment of combustion characteristics of biofuels and emulsions with water for use as diesel engine fuels

Cited by 87 publications

References 2 publications

Investigations on Performance and Emission Characteristics of Diesel Engine with Biodiesel (Jatropha Oil) and Its Blends

Investigations on Performance and Emission Characteristics of Diesel Engine with Biodiesel (Jatropha Oil) and Its Blends

Performance and emissions characteristics of Jatropha oil (preheated and blends) in a direct injection compression ignition engine

Performance and emission studies on an agriculture engine on neat Jatropha oil

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