Comparative study of nanoadditives TiO2, CNT, Al2O3, CuO and CeO2 on reduction of diesel engine emission operating on hydrogen fuel blends

Manigandan, S.; Sarweswaran, R.; Devi, P. Booma; Şöhret, Yasin; Kondratiev, Andrii; Venkatesh, S.; Vimal, M. Rakesh; Joshua, J. Jensin

doi:10.1016/j.fuel.2019.116336

Cited by 114 publications

(28 citation statements)

References 43 publications

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“…Recently, several additives, including nanoparticles, and bio diesels were used in the fuels to increase the thrust and also to decrease the emission of pollutants in atmosphere (Wang et al , 2019). Recently, hydrogen and vegetable oil have been considered as a sustainable replacement for conventional fuels with minimum alteration of existing engine although direct application of these fuels increases the nitrous oxide emission levels and reduces the life of turbine engine (Booma Devi et al , 2020; Manigandan et al , 2020a). To eliminate those issues, transesterification process is used to isolate glycerin from the vegetable oil.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen as the futuristic fuel for the aviation and aerospace industry – review

Gunasekar

Manigandan

kumar

2020

AEAT

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Purpose The rise in demand and high utilization of fuel causes severe environmental threat for the nations on the globe. Rapid burning potential of hydrogen produces enormous amount of thrust, and it is mainly owing to wide flame range and less onset of ignition. Design/methodology/approach The significant contribution of hydrogen as fuel has been explored by several researchers around the globe recently to use in aviation sector owing to its eco-friendly nature. Hydrogen is a safe and clean fuel, and it can be generated from several sources. The effects of addition on hydrogen on gas turbine on combustion characteristics and emission concentration level on atmosphere have been reviewed in this paper. Findings Incorporation of hydrogen is effective reducing nitrous oxide emission, high calorific value and flame less combustion. Addition of hydrogen to higher proportions enhances the combustion performance, minimizing the setbacks of conventional fuel and meets the specified standards on emission. Originality/value From the literature review, the comparative study on hydrogen with other fuel is explained. This paper concludes that addition of hydrogen in fuel enhances the performance of combustion on gas turbine engine along with significant reduction in emission levels.

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Section: Introductionmentioning

confidence: 99%

Hydrogen as the futuristic fuel for the aviation and aerospace industry – review

Gunasekar

Manigandan

kumar

2020

AEAT

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“…Generally, aviation fuel includes aviation gasoline for spark ignition piston-pro engines and jet fuel for gas turbine engines (Altuntas et al, 2013;Yildirim et al, 2017;Manigandan et al, 2020aManigandan et al, , 2020bManigandan et al, , 2020c. Due to the scarce petroleum resources, deteriorating global environment and energy issues, the development and application of aviation alternative fuels have attracted attention from people in the aviation industry.…”

Section: Introductionmentioning

confidence: 99%

Investigation on performance and combustion of compression ignition aviation piston engine burning biodiesel and diesel

Liu

Zhao

Wang³

et al. 2020

AEAT

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Purpose This study aims to contrastively investigate the effects of biodiesel and diesel on the power, economy and combustion characteristics of a compression ignition aviation piston engine for unmanned aerial vehicles. Design/methodology/approach Biodiesel used as alternative fuel will not be mixed with diesel during experimental study. Pure diesel fuel is used for the comparative test. Same fuel injection strategies, including pilot and main injection, are guaranteed for two fuels in same test points. Findings The engine-rated power of biodiesel is lower than diesel, which results in higher specific fuel combustion (SFC) and effective thermal efficiency (ETE). Biodiesel has the faster burning rate, shorter combustion duration. The crank angle of 50% mass fraction burned (CA50) is earlier than diesel. The ignition delay angle of biodiesel and diesel in the pilot injection stage is almost the same at high engine speed. As the speed and load decrease, the ignition delay angle of biodiesel in the pilot injection stage is smaller than diesel. At 100% high load conditions, the fuel-burning fraction of biodiesel in the pilot injection is the same as diesel. The peak heat release rate (HRR) of biodiesel is slightly lower than diesel. At 20% part load conditions, the fuel-burning fraction of biodiesel in the pilot injection stage is lower than diesel. Because of the combustion participation of unburned pilot injected fuel, the peak HRR of biodiesel in the main injection is equal to or even higher than diesel. Originality/value The application feasibility of alternative fuel and its effects on aviation engine power, economy and combustion characteristics will be evaluated according to the “drop-in“ requirements and on the low-cost premise without changing the aviation engine structure and parameters.

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“…The research is been carried out recently without making many modifications in the existing engines by adding natural-based vegetable oils and hydrogen as additives (Wang et al, 2019;Riebl et al, 2016). Due to the sustainability of the engines, the vegetable-based natural biofuels are not added directly to the engines because of the poor combustion rate of the fuel as well as its higher emission rate of NOx (Manigandan et al, 2020c). To avoid the poor combustion rate, as well as NOx emission from the vegetable oils, these biofuels are blend with the Glycerine with different ratios using the transesterification process.…”

Section: Introductionmentioning

confidence: 99%

Lowest emission sustainable aviation biofuels as the potential replacement for the Jet-A fuels

Anderson

Karthikeyan

Kumar

et al. 2020

AEAT

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Purpose The purpose of this study is to predict the performance and emission characteristics of micro gas turbine engines powered by alternate fuels. The micro gas turbine engine performance, combustion and emission characteristics are analyzed for the jet fuel with different additives. Design/methodology/approach The experimental investigation was carried out with Jet A-1 fuel on the gas turbine engines at different load conditions. The primary blends of the Jet A-1 fuels are from canola and solid waste pyrolysis oil. Then the ultrasonication of highly concentrated multiwall carbon nanotubes is carried with the primary blends of canola (Jet-A fuel 70%, canola 20% and 10% ethanol) and P20E (Jet-A 70% fuel, 20% PO and 10% ethanol). Findings The consumption of the fuel is appreciable with the blends at a very high static thrust. The 39% reduction in thrust specific fuel consumption associated with a 32% enhance in static thrust with P20E blend among different fuel blends. Moreover, due to the increase in ethanol concentration in the blends PO20E and C20E lead to a 22% rise in thermal efficiency and a 9% increase in higher oxygen content is observed. Practical implications The gas turbine engine emits very low emission of gases such as CO, CO2 and NOx by using the fuel blends, which typically reduces the fossil fuel usage limits with reduced pollutants. Originality/value The emission of the gas turbine engines is further optimized with the addition of hydrogen in Jet-A fuel. That is leading to high specific fuel exergy and owing to the lower carbon content in the hydrogen fuel when compared with that of the fossil fuels used in gas turbine engines. Therefore, the usage of hydrogen with nanofluids was so promising based on the results obtained for replacing fossil fuels.

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Comparative study of nanoadditives TiO2, CNT, Al2O3, CuO and CeO2 on reduction of diesel engine emission operating on hydrogen fuel blends

Cited by 114 publications

References 43 publications

Hydrogen as the futuristic fuel for the aviation and aerospace industry – review

Hydrogen as the futuristic fuel for the aviation and aerospace industry – review

Investigation on performance and combustion of compression ignition aviation piston engine burning biodiesel and diesel

Lowest emission sustainable aviation biofuels as the potential replacement for the Jet-A fuels

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