A Study on Cold Startability and Mixture Formation of High-Percentage Methanol Blends

Iwai, Nobuo; Nagai, Keiichi; Yasuda, Hitoshi; Ayusawa, Tadashi; Kim, Yong Kil

doi:10.4271/880044

Cited by 22 publications

(2 citation statements)

References 3 publications

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“…This enhancement represents a significant advance in lubrication containing vegetable oil and minimizes the risk of thickening or lacquer formation. Lubrication oil is fully soluble in alcohol fuels and ideally suited for use in both air and liquid cooled engines running on methanol and ethanol fuel . Ethanol Fuel properties are shown in Table .…”

Section: Lubricationmentioning

confidence: 99%

An experimental and simulation study of performance and emission of ethanol fueled direct injection in high compression ignition engine

Murugasen

AnnurSrinivasan

2015

Biofuels Bioprod Bioref

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This research article mainly focuses on the influence of split injection (split into three injections) technique that was used to improve the ethanol fuel combustion in high compression ignition (CI) mode, with and without zirconia surface coating. This experimental and simulation was used (95% ethanol +5% water) as a fuel in a four‐stroke single‐cylinder variable compression ratio (VCR) engine. The VCR engine was used with optimized compression ratio (28.8:1) and experimental conducted on various load conditions. Performance and exhaust emissions of nitrogen oxides (NOx), carbon monoxide (CO) and unburned hydrocarbon (UHC) emissions of diesel, ethanol fuel single and split injection mode with coating and without coating were compared. The brake thermal efficiency (BTE) of split injection with coating mode was better than single injection mode. The VCR engine operating with ethanol fuel split injection mode showed peak BTE of 29%, which is nearly operating range in the baseline diesel engine. Ethanol fuel was mixed with 3% castorene R40 (lubrication oil) oil by volume due to fully soluble in alcohol fuels. It is used both air and liquid cooled engines running on methanol and ethanol fuel. Ethanol fuel split injection simulation was reduction of NOx compared with single injection simulation mode of operation. In comparison of diesel mode operation with zirconia coating was 3.8% increased than without coating. Ethanol single injection with coating CO emissions various from 0.5 to 3.0 g/kW‐hr. Ethanol split injection with coating mode CO emission various from 0.29 to 2.4 g/kW‐hr. © 2015 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Lubricationmentioning

confidence: 99%

An experimental and simulation study of performance and emission of ethanol fueled direct injection in high compression ignition engine

Murugasen

AnnurSrinivasan

2015

Biofuels Bioprod Bioref

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“…A flammable mixture can be formed by the low-distillation component of gasoline. 18 In contrast, for M85, the evaporation of the 15% gasoline in the blend results in a temperature drop of 4°C; as there is no methanol vapour to form a combustible mixture, the first cycle misfires, and so the engine cannot be started properly.…”

Section: Cylinder Temperature Measurementmentioning

confidence: 99%

Investigation of the cold-start engine performance at a low temperature for an engine fuelled with alternative fuel

Xiao

Wang

Song³

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part D:

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With the stringent emissions regulations for spark ignition engines, attention has always been paid to the cold-start emissions of hydrocarbons and carbon monoxide. The engine speed is an external parameter that can reflect the combustion quality. In this paper, a four-cylinder spark ignition engine fuelled with gasoline and methanol-gasoline blends with methanol fractions of 10%, 30% and 85% is studied; the cold-start transient performances are investigated at ambient temperature of 15°C, -7°C, -15°C and -25°C respectively. The engine speed curves indicate the existence of misfire cycles and incomplete combustion cycles, which are proved by the measured in-cylinder temperatures and the data on the indicated mean effective pressure. The experimental results show that the addition of methanol increases the starting time at low temperatures, which improves the combustion, however. The engine started successfully for all the blending ratios and ambient temperatures except for the 85% methanol-gasoline blend at -25°C. During the cold-start process, the peak speed and the transient period increase with increasing methanol fraction, while the speed fluctuations decrease. Thus the addition of methanol improves the cold-start performance of the engine.

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Study on the controlling strategies of homogeneous charge compression ignition combustion with fuel of dimethyl ether and methanol

Yao

Chen

Zheng

et al. 2006

Fuel

107

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A Study on Cold Startability and Mixture Formation of High-Percentage Methanol Blends

Cited by 22 publications

References 3 publications

An experimental and simulation study of performance and emission of ethanol fueled direct injection in high compression ignition engine

An experimental and simulation study of performance and emission of ethanol fueled direct injection in high compression ignition engine

Investigation of the cold-start engine performance at a low temperature for an engine fuelled with alternative fuel

Study on the controlling strategies of homogeneous charge compression ignition combustion with fuel of dimethyl ether and methanol

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