RME or DME: A preferred alternative fuel option for future diesel engine operation

Crookes, Roy J.; Bob-Manuel, K.D.H.

doi:10.1016/j.enconman.2007.07.002

Cited by 49 publications

(23 citation statements)

References 8 publications

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“…The effect of different alternative fuels (all can be considered sustainable to different degrees) such as biodiesel (rapeseed methyl ester or RME) and dimethyl ether (DME) on the emissions production process has been investigated previously in various studies (for instance representative studies are published in Refs. [13][14][15][16][17][18][19][20][21][22][23]). In terms of exhaust emissions and overall performance biodiesel did not show much difference compared to diesel.…”

Section: Introductionmentioning

confidence: 99%

Biodiesel, emulsified biodiesel and dimethyl ether as pilot fuels for natural gas fuelled engines

et al. 2010

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Section: Introductionmentioning

confidence: 99%

Biodiesel, emulsified biodiesel and dimethyl ether as pilot fuels for natural gas fuelled engines

et al. 2010

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“…Due to the faster evaporation and better mixing with air, despite the shorter ignition delay for DME, more over-leaning can occur and, if the local equivalence ratio becomes too low to support combustion, an increase of CO emissions may result. Higher emissions of CO and HC have been reported along with lower NO x in many investigations [49][50][51][52][53].…”

Section: Hc and Comentioning

confidence: 99%

“…DME as an additive or an ignition enhancer even enables the use of various other fuels for conventional diesel combustion, dual-fuel operation and HCCI operation. Propane or LPG, hydrogen and natural gas have all been tested as alternatives to diesel with the assistance of DME [22,49,[64][65][66][67][68].…”

Section: New Dme Concept Enginementioning

confidence: 99%

The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review

Arcoumanis

Bae

Crookes

et al. 2008

Fuel

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412

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Citation: Arcoumanis, C., Bae, C., Crookes, R. and Kinoshita, E. (2008). The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review. Fuel, 87(7), pp. 1014-1030. doi: 10.1016/j.fuel.2007.06.007 This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent AbstractThis paper reviews the properties and application of di-methyl ether (DME) as a candidate fuel for compression-ignition engines. DME is produced by the conversion of various feedstock such as natural gas, coal, oil residues and bio-mass. To determine the technical feasibility of DME, the review compares its key properties with those of diesel fuel that are relevant to this application. DME's diesel engine-compatible properties are its high cetane number and low auto-ignition temperature. In addition, its simple chemical structure and high oxygen content result in soot-free combustion in engines. Fuel injection of DME can be achieved through both conventional mechanical and current common-rail systems but requires slight modification of the standard system to prevent corrosion and overcome low lubricity. The spray characteristics of DME enable its application to compression-ignition engines despite some differences in its properties such as easier evaporation and lower density. Overall, the low particulate matter production of DME provides adequate justification for its consideration as a candidate fuel in compression-ignition engines. Recent research and development shows comparable output performance to a diesel fuel led engine but with lower particulate emissions. NO x emissions from DME-fuelled engines can meet future regulations with high exhaust gas recirculation in combination with a lean NO x trap. Although more development work has focused on medium or heavy-duty engines, this paper provides a comprehensive review of the technical feasibility of DME as a candidate fuel for environmentally-friendly compression-ignition engines independent of size or application.

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“…Two strategies have been evolved to meet these challenges: the use of alternate fuels to reduce the dependence on fossil fuels [3,4] and the development of clean burning fuels to meet the strict emissions targets [5]. Owing to its superior combustion characteristics, hydrogen has received particular attention [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Performance and specific emissions contours throughout the operating range of hydrogen-fueled compression ignition engine with diesel and RME pilot fuels

Imran

Emberson

Hussain

et al. 2015

Alexandria Engineering Journal

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This paper presents the performance and emissions contours of a hydrogen dual fueled compression ignition (CI) engine with two pilot fuels (diesel and rapeseed methyl ester), and compares the performance and emissions iso-contours of diesel and rapeseed methyl ester (RME) single fueling with diesel and RME piloted hydrogen dual fueling throughout the engines operating speed and power range. The collected data have been used to produce iso-contours of thermal efficiency, volumetric efficiency, specific oxides of nitrogen (NO X ), specific hydrocarbons (HC) and specific carbon dioxide (CO 2 ) on a power-speed plane. The performance and emission maps are experimentally investigated, compared, and critically discussed. Apart from medium loads at lower and medium speeds with diesel piloted hydrogen combustion, dual fueling produced lower thermal efficiency everywhere across the map. For diesel and RME single fueling the maximum specific NO X emissions are centered at the mid speed, mid power region. Hydrogen dual fueling produced higher specific NO X with both pilot fuels as compared to their respective single fueling operations. The range, location and trends of specific NO X varied significantly when compared to single fueling . Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Please cite this article in press as: S. Imran et al., Performance and specific emissions contours throughout the operating range of hydrogen-fueled compression ignition engine with diesel and RME pilot fuels, Alexandria Eng. J. (2015), http://dx.doi.org/10.1016/j.aej.2015.05.007 cases. The volumetric efficiency is discussed in detail with the implications of manifold injection of hydrogen analyzed with the conclusions drawn. ª 2015 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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RME or DME: A preferred alternative fuel option for future diesel engine operation

Cited by 49 publications

References 8 publications

Biodiesel, emulsified biodiesel and dimethyl ether as pilot fuels for natural gas fuelled engines

Biodiesel, emulsified biodiesel and dimethyl ether as pilot fuels for natural gas fuelled engines

The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review

Performance and specific emissions contours throughout the operating range of hydrogen-fueled compression ignition engine with diesel and RME pilot fuels

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