Numerical investigation on the combustion and emission characteristics of a hydrogen assisted biodiesel combustion in a diesel engine

An, Hongyu; Yang, Wenming; Maghbouli, Amin; Li, J Jing; Chou, S.K.; Chua, K.J.; Jx, Wang; Li, L

doi:10.1016/j.fuel.2013.12.021

Cited by 58 publications

(16 citation statements)

References 26 publications

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“…Therefore, the optimal loading was 75%, this trend was also experienced by previous researchers [21]. The reduced power production faced by the biodiesel combustion was resolved by hydrogen that assisted dual biodiesel blends of diesel fuel combustion, examined as a promising solution to enhance biodiesel combustion processes [22]. With the induction of hydrogen in dual biodiesel blended with diesel, the brake thermal efficiencies were 29.31%, 31.3%, 30.5% for 4, 6, and 8lpm, respectively, which were 20.56%, 28.75% and 25.46% more compared to biodiesel.…”

Section: Brake Thermal Efficiencysupporting

confidence: 56%

Analysis of hydrogen enriched treble biofuel blended with diesel for performance, emission and combustion characteristics on CI engine

Fakhruddin¹,

Ali²,

Hussain³

2017

Int. J. Automot. Mech. Eng.

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The need of the hour is to look forward to alternative fuels to swipe out the dependence on fossil fuels, as biofuels from various feedstocks are being experimented worldwide. However, it is difficult to implement biodiesel from a single feedstock to replace the existing fossil fuels. It is reliable to obtain biodiesel from local feedstock and to make multiple biodiesel mixtures blended with diesel. The present work relies more on biofuels and acts as a step towards fossil fuel-free engine or at least to snatch the lion's share of the fossil fuels. In this contest, the experiment was carried out by using treble biofuels i.e., WCOBD + PSBD + Bio-hydrogen at different injection pressures (i.e., 200bar, 225bar and 250bar) and compared them with a similar engine that utilised fossil fuel as the stand-alone fuel. The mixture ratios were B10, B20 and B30 and the enrichment of hydrogen was done at 4lpm, 6lpm and 8lpm. The results showed that the brake thermal efficiency of dual biofuel blended diesel decreased as compared to that of the base fuel and increased with hydrogen enriched biodiesel. Hence, the brake specific energy consumption decreased for the hydrogen enriched fuel and the exhaust emissions of CO and CO2 were reduced, however, NOx showed an increasing trend as usual.

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Section: Brake Thermal Efficiencysupporting

confidence: 56%

Analysis of hydrogen enriched treble biofuel blended with diesel for performance, emission and combustion characteristics on CI engine

Fakhruddin¹,

Ali²,

Hussain³

2017

Int. J. Automot. Mech. Eng.

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“…1. Detailed engine specifications are listed in Table 1 and extensive mesh independence test can be found in our earlier works [24][25][26].…”

Section: Numerical Modelsmentioning

confidence: 99%

Modeling analysis of urea direct injection on the NO x emission reduction of biodiesel fueled diesel engines

Yang

et al. 2015

Energy Conversion and Management

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“…The operation at higher EGR rates led to significant NO x specific emission benefits of up to 64% while carbon monoxide and total hydrocarbons were also reduced. In [20] it was found that the addition of hydrogen for medium and high loads has a positive effect on engine performance, while for small loads the share of hydrogen makes unfavorable ignition conditions and it has a negative impact on engine performance. It was also observed that the hydrogen addition has a positive effect on soot and CO emission for all operating ranges.…”

Section: Introductionmentioning

confidence: 99%

Combustion and Emission Characteristics of a Biodiesel-Hydrogen Dual-Fuel Engine

2020

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The paper presents the results of co-combustion of biodiesel with hydrogen in a compression-ignition internal combustion engine. The tests were carried out on a stationary engine with constant settings. The paper presents the results of the assessment of the combustion process, combustion stability and exhaust emissions in a dual-fuel diesel engine fueled with biodiesel and hydrogen. It was found that it is possible to replace biodiesel with hydrogen to its energetic share of 38%. The share of hydrogen in the co-combustion process causes a change in combustion phases and reducing the duration of combustion. The increase of the engine thermal efficiency was obtained with the increase of the H2 share. A different character of heat release rate was obtained compared to a conventional engine. The reduction in the diffusion combustion phase has contributed to a significant reduction in soot emissions. The maximum 38% of hydrogen energy share acceptable by the engine, resulted in a more than 25-times reduction in soot emissions. The combustion stability assessed on the basis of the unrepeatability of the indicated mean effective pressure (COVIMEP) index and also on the basis of the indicated mean effective pressure (IMEP) normal distribution was also analyzed.

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Numerical investigation on the combustion and emission characteristics of a hydrogen assisted biodiesel combustion in a diesel engine

Cited by 58 publications

References 26 publications

Analysis of hydrogen enriched treble biofuel blended with diesel for performance, emission and combustion characteristics on CI engine

Analysis of hydrogen enriched treble biofuel blended with diesel for performance, emission and combustion characteristics on CI engine

Modeling analysis of urea direct injection on the NO x emission reduction of biodiesel fueled diesel engines

Combustion and Emission Characteristics of a Biodiesel-Hydrogen Dual-Fuel Engine

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