Optimization study on exhaust emissions and fuel consumption in a dimethyl ether (DME) fueled diesel engine

Kim, Hyung Jun; Park, Su Han

doi:10.1016/j.fuel.2016.06.001

Cited by 53 publications

(17 citation statements)

References 36 publications

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“…Dimethyl ether is admirable commonly realised as an efficient alternate for diesel fuel (Kim and Park 2016). Distinctly, numerous physicochemical features characterise liquefied petroleum gas, such as anti-corrosive, anti-carcinogenic, less nitrogen oxide and carbon monoxide emissions during its burning, less engine noise and high cetane number (Dincer and Bicer, 2020).…”

Section: Synthesis Of Carbonylmentioning

confidence: 99%

Hydrogen production, storage, utilisation and environmental impacts: a review

et al. 2021

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Dihydrogen (H2), commonly named ‘hydrogen’, is increasingly recognised as a clean and reliable energy vector for decarbonisation and defossilisation by various sectors. The global hydrogen demand is projected to increase from 70 million tonnes in 2019 to 120 million tonnes by 2024. Hydrogen development should also meet the seventh goal of ‘affordable and clean energy’ of the United Nations. Here we review hydrogen production and life cycle analysis, hydrogen geological storage and hydrogen utilisation. Hydrogen is produced by water electrolysis, steam methane reforming, methane pyrolysis and coal gasification. We compare the environmental impact of hydrogen production routes by life cycle analysis. Hydrogen is used in power systems, transportation, hydrocarbon and ammonia production, and metallugical industries. Overall, combining electrolysis-generated hydrogen with hydrogen storage in underground porous media such as geological reservoirs and salt caverns is well suited for shifting excess off-peak energy to meet dispatchable on-peak demand.

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Section: Synthesis Of Carbonylmentioning

confidence: 99%

Hydrogen production, storage, utilisation and environmental impacts: a review

et al. 2021

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“…Therefore, researchers have started to add some agents to stabilize the mixture and attain the required CN [16,17]. Dimethyl ether (C 2 H 6 O) is a suitable CN booster when it is mixed with diesel, as it has a CN of greater than 55 [18]. However, we believe that this molecule cannot be used in diesel engines effectively due to its lower values of molecular weight, boiling point, and density, which makes it evaporate much faster than diesel fuel molecules.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Biodiesel Fuel on Ethanol/Diesel Blends

2019

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The interest in biofuels was stimulated by the fossil fuel depletion and global warming. This work focuses on the impact of biodiesel fuel on ethanol/diesel (ED) fuel blends. The soybean methyl ester was used as a representative composition of typical biodiesel fuels. The heating and evaporation of ethanol–biodiesel–diesel (EBD) blends were investigated using the Discrete–Component (DC) model. The Cetane Number (CN) of the EBD blends was predicted based on the individual hydrocarbon contributions in the mixture. The mixture viscosity was predicted using the Universal Quasi-Chemical Functional group Activity Coefficients and Viscosity (UNIFAC–VISCO) method, and the lower heating value of the mixture was predicted based on the volume fractions and density of species and blends. Results revealed that a mixture of up to 15% biodiesel, 5% ethanol, and 80% diesel fuels had led to small variations in droplet lifetime, CN, viscosity, and heating value of pure diesel, with less than 1.2%, 0.2%, 2%, and 2.2% reduction in those values, respectively.

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Section: Emission Behaviormentioning

confidence: 99%

“…Recently, Benajes et al [203,204] and Kim et al [205] published regarding the numerical optimization of DME combustion in a diesel engine. Kim et al [205] sought optimal operating conditions of engine operation with DME and diesel, varying the start of injection, injection pressure, and angle, as well as the equivalence ratio, using a genetic algorithm. Meanwhile, Benajes et al first optimized the combustion system design of a heavyduty compression ignition engine operated on DME with another genetic algorithm optimization with the help of computational fluid dynamics [204].…”

Section: Emission Behaviormentioning

confidence: 99%

Future Power Train Solutions for Long-Haul Trucks

et al. 2021

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Achieving the CO2 reduction targets for 2050 requires extensive measures being undertaken in all sectors. In contrast to energy generation, the transport sector has not yet been able to achieve a substantive reduction in CO2 emissions. Measures for the ever more pressing reduction in CO2 emissions from transportation include the increased use of electric vehicles powered by batteries or fuel cells. The use of fuel cells requires the production of hydrogen and the establishment of a corresponding hydrogen production system and associated infrastructure. Synthetic fuels made using carbon dioxide and sustainably-produced hydrogen can be used in the existing infrastructure and will reach the extant vehicle fleet in the medium term. All three options require a major expansion of the generation capacities for renewable electricity. Moreover, various options for road freight transport with light duty vehicles (LDVs) and heavy duty vehicles (HDVs) are analyzed and compared. In addition to efficiency throughout the entire value chain, well-to-wheel efficiency and also other aspects play an important role in this comparison. These include: (a) the possibility of large-scale energy storage in the sense of so-called ‘sector coupling’, which is offered only by hydrogen and synthetic energy sources; (b) the use of the existing fueling station infrastructure and the applicability of the new technology on the existing fleet; (c) fulfilling the power and range requirements of the long-distance road transport.

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Optimization study on exhaust emissions and fuel consumption in a dimethyl ether (DME) fueled diesel engine

Cited by 53 publications

References 36 publications

Hydrogen production, storage, utilisation and environmental impacts: a review

Hydrogen production, storage, utilisation and environmental impacts: a review

The Impact of Biodiesel Fuel on Ethanol/Diesel Blends

Future Power Train Solutions for Long-Haul Trucks

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