An experimental study of engine characteristics and tailpipe emissions from modern DI diesel engine fuelled with methanol/diesel blends

Hasan, Ahmad O.; Osman, Ahmed I.; Al-Muhtaseb, Ala’a H.; Al-Rawashdeh, Hani; Abu-Jrai, A.; Ahmad, Riad; Gomaa, Mohamed R.; Deka, Tanmay J.; Rooney, David

doi:10.1016/j.fuproc.2021.106901

Cited by 73 publications

(25 citation statements)

References 57 publications

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“…It can be found that with the methanol ratio in the mixed fuel increased to 10%, 20%, 30%, and 40%, the brake specific fuel consumption increased by 3.77%, 6.92%, 12.33%, and 17.61%, respectively. Similarly, this result is consistent with that of Hasan et al [44]. This is because the calorific value of methanol (20.1 MJ/kg) is much lower than that of diesel fuel (42.5 MJ/kg).…”

Section: Brake Specific Fuel Consumptionsupporting

confidence: 93%

Effects of Different Mixture Ratios of Methanol-Diesel on the Performance Enhancement and Emission Reduction for a Diesel Engine

Zhang

Tian

et al. 2021

Processes

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To improve the combustion and emission characteristics of diesel engines, methanol-diesel fuels with different mixing ratios (DM0, DM10, DM20, DM30, and DM40) were used to investigate the effects of methanol addition on the combustion and emission of a four-stroke diesel engine in terms of cylinder pressure, brake power, brake-specific fuel consumption, and nitrogen oxides, soot, and carbon monoxide emissions. Firstly, an improved entire diesel engine model was developed using AVL-BOOST software and validated by the experimental results. The results showed that the increase of methanol content in the fuel mixture had a negative impact on the performance characteristic of the diesel engine, but significantly improved the emission characteristic of the diesel engine. With the methanol ratio in the mixed fuel increased to 10%, 20%, 30%, and 40%, the cylinder pressure of the engine increased by 0.89%, 1.48%, 2.29%, and 3.17%, respectively. However, the power decreased by 3.76%, 6.74%, 11.35%, and 15.45%, the torque decreased by 3.76%, 6.74%, 11.35%, and 15.45%, respectively, and the brake specific fuel consumption increased by 3.77%, 6.92%, 12.33%, and 17.61%, respectively. In addition, with the methanol ratio in the mixed fuel increased to 10%, 20%, 30%, and 40%, the carbon monoxide emission decreased by 21.32%, 39.04%, 49.81%, and 56.59% and the soot emission decreased by 0.25%, 8.69%, 16.81%, and 25.28%, respectively. Therefore, the addition of methanol to the fuel can improve the combustion and emission characteristics of the engine.

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Section: Brake Specific Fuel Consumptionsupporting

confidence: 93%

Effects of Different Mixture Ratios of Methanol-Diesel on the Performance Enhancement and Emission Reduction for a Diesel Engine

Zhang

Tian

et al. 2021

Processes

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“…where X i , and X are the measured and mean values, respectively, and n is the number of measurements. Therefore, uncertainty (U) is defined by 33,34 :…”

Section: One-dimensional Model and Data Analysismentioning

confidence: 99%

“…Measurement uncertainty has been evaluated through statistical analysis. The SD of the emissions and data obtained from the test rig were calculated using the Equation ( 5) 33,34 :…”

Section: One-dimensional Model and Data Analysismentioning

confidence: 99%

Effects of using ammonia as a primary fuel on engine performance and emissions in an ammonia/biodiesel dual‐fuel CI engine

Nadimi

Przybyła

Emberson

et al. 2022

Intl J of Energy Research

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Ammonia is a promising alternative fuel that can replace current fossil fuels. Hydrogen carrier, zero carbon base emissions, liquid unlike hydrogen, and can be produced using renewable resources, making ammonia a future green fuel for the internal combustion engine. This study aims to show the procedure of utilizing ammonia as a primary fuel with biodiesel in a dual-fuel mode. Hence, a single-cylinder diesel engine was retrofitted to inject ammonia into the intake manifold, and then a pilot dose of biodiesel is sprayed into the cylinder to initiate combustion of the premixed ammonia-air mixture. The effects of various ammonia mass flow rates with a constant biodiesel dose on engine performance and emissions were investigated. Furthermore, a one-dimensional model has been developed to analyze the combustion of ammonia and biodiesel. The results reveal that 69.4% of the biodiesel input energy can be replaced by ammonia but increasing the ammonia mass flow rate slightly decreases the brake thermal efficiency. Moreover, increasing the ammonia load contribution significantly reduced the emissions of CO 2 , CO, and HC but increased the

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“…However, a higher percentage of methanol blending had adverse effects on all of the desired parameters. Hasan et al 52 examined the performance and emissions characteristics of a four-cylinder, four-stroke, DI turbocharged diesel engine fueled by methanol-diesel. They reported a decrease in BTE with an increasing percentage of methanol-diesel blends (10%, 20%, 30%, and 40%).…”

Section: Methanol Fumigationmentioning

confidence: 99%

A critical review: Application of methanol as a fuel for internal combustion engines and effects of blending methanol with diesel/biodiesel/ethanol on performance, emission, and combustion characteristics of engines

Pandey

2022

Heat Trans

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This article presents a comprehensive overview of methanol as a potential oxygenated fuel for internal combustion engines. Here two approaches have been examined to evaluate the utilization of methanol, namely blending with diesel/biodiesel/methanol and premixing with intake air or fumigation. In conventional compression ignition engines, up to 95% and 25% diesel can be replaced by methanol through fumigation and blending, respectively. Higher latent heat of vaporization of alcohol led to lower peak in‐cylinder pressure and NOx; however, it negatively affects thermal efficiency and hydrocarbon and carbon monoxide emissions. Fumigation of alcohol requires modifications in the existing engine, whereas blending needed surfactants or additives to produce stable alcohol–diesel blends. High injection pressure and late direct injection, methanol–diesel blends have shown lower emissions and proved their potential as a suitable replacement for ethanol–diesel blends from the components durability perspective.

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An experimental study of engine characteristics and tailpipe emissions from modern DI diesel engine fuelled with methanol/diesel blends

Cited by 73 publications

References 57 publications

Effects of Different Mixture Ratios of Methanol-Diesel on the Performance Enhancement and Emission Reduction for a Diesel Engine

Effects of Different Mixture Ratios of Methanol-Diesel on the Performance Enhancement and Emission Reduction for a Diesel Engine

Effects of using ammonia as a primary fuel on engine performance and emissions in an ammonia/biodiesel dual‐fuel CI engine

A critical review: Application of methanol as a fuel for internal combustion engines and effects of blending methanol with diesel/biodiesel/ethanol on performance, emission, and combustion characteristics of engines

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