Effects of dilute gas on combustion and emission characteristics of a common-rail diesel engine fueled with isopropanol-butanol-ethanol and diesel blends

Li, Gang; Liu, Zhien; Lee, Timothy H.; Lee, Chia-fon F.; Zhang, Chunhua

doi:10.1016/j.enconman.2018.03.073

Cited by 37 publications

(12 citation statements)

References 32 publications

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“…Energies 2020, 13 Statistical calculations of type A uncertainties were used to measure exhaust. Type A uncertainties were used to determine the standard deviation for repeated measurements, where u(x) is uncertainty, n-repeatability of measurements, and s(x)-reliability [55,56]:…”

Section: Engine Testing Equipmentmentioning

confidence: 99%

“…The absence of a replacement for vehicles that run on liquid fuels, and a high price of electric vehicles made the automotive industry devote its resources to finding alternative fuels as a replacement and to decreasing the emissions concerned with environmental problems [5][6][7]. Recent studies revealed that greenhouse gases and harmful combustion chamber emissions can be significantly reduced by using fuels, such as alcohol and biodiesel, as primary alternatives [8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Energies 2020, 13, 2398 2 of 17 Modern biofuel production technologies are sufficiently developed and focused on the production of alcohols, which are very widely used as fuel additives [22]. Mostly ethanol is produced, the production technologies of which have been well known since ancient times.…”

Section: Introductionmentioning

confidence: 99%

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Research of Energy and Ecological Indicators of a Compression Ignition Engine Fuelled with Diesel, Biodiesel (RME-Based) and Isopropanol Fuel Blends

2020

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This article presents the results of a study of energy and ecological indicators at different engine loads (BMEP) adjusting the Start of Injection (SOI) of a Compression Ignition Engine fuelled with blends of diesel (D), rapeseed methyl ester (RME)-based biodiesel and isopropanol (P). Fuel blends mixed at D50RME45P5, D50RME40P10 and D50RME30P20 proportions were used. Alcohol-based fuels, such as isopropanol, were chosen because they can be made from different biomass-based feedstocks and used as additives with diesel fuel in diesel engines. Diesel fuel and its blend with 10% alcohol have almost the same thermal efficiency (BTE). In further examination of energy and ecological indicators, combustion parameters were analysed at SOI 6 CAD BTDC using AVL BOOST software (BURN subprogram). Increasing alcohol content in fuel blends led to a reduced cetane number, which prolonged the ignition delay phase and intensified heat release in the premixed combustion phase. Higher combustion temperatures and oxygen content in the fuel blends increased NOx emissions. Lower C/H ratios and higher O2 levels affected by RME and isopropanol reduced smoke emissions.

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Section: Engine Testing Equipmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research of Energy and Ecological Indicators of a Compression Ignition Engine Fuelled with Diesel, Biodiesel (RME-Based) and Isopropanol Fuel Blends

2020

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“…They also investigated how the EGR affects the combustion and emissions of diesel/IBE blends, which revealed that IBE/diesel blends can concurrently achieve the reduction of NOx and soot emissions with the help of EGR. 35 However, the above studies only focused on the realtime observation and quantitative measurement of soot emissions for IBE/diesel blends, while soot formation process for them has not been studied. Furthermore, the largest blending ratio of IBE and diesel they used was 30% in volume.…”

Section: Introductionmentioning

confidence: 99%

Optical investigation on combustion and soot formation characteristics of isopropanol‐butanol‐ethanol (IBE)/diesel blends

Dai

et al. 2021

Energy Science & Engineering

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Isopropanol-butanol-ethanol (IBE) is considered to be a promising alternative fuel for diesel to reduce soot emissions. However, currently researchers have not yet revealed its soot formation processes. In this regard, the forward illumination light extinction (FILE) technology was used to investigate the soot formation process of IBE/diesel blends. Diesel containing 50% of IBE in volume (IBE50), pure IBE (IBE100), and diesel were tested. The experimental results show that soot formation regions for the tested fuels are greatly affected by the ambient conditions. The lower the ambient temperature is, the smaller the soot formation region is. Besides, a low ambient temperature coupled with a small ambient oxygen concentration may further reduce soot formation regions of the tested fuels. Results also show that soot formation regions of IBE50 and IBE100 are obviously smaller than that of diesel. In most test conditions, the head of soot formation regions for IBE50 and IBE100 exhibits as a thin strip. Furthermore, soot formation duration and intensity of IBE50 and IBE100 are obviously small in comparison with diesel, especially at low ambient temperature. The results of this study indicate that when IBE is directly blended with diesel, it is able to reduce soot emissions.

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“…compared IBE–gasoline blends with several commonly used alternative alcohol fuels such as ethanol, n ‐butanol and ABE–gasoline blends, and found that IBE was a good additive to gasoline with regard to enhancing engine performance and decreasing emissions, especially when the IBE content in the blends was 30%. In another research, Li et al 10 . investigated properties such as performance, combustion and emissions of a diesel engine fueled with IBE and diesel blends.…”

Section: Introductionmentioning

confidence: 99%

A novel energy‐efficient extraction‐assisted distillation design for isopropanol–butanol–ethanol purification for use of gasoline additive

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND Biobutanol is considered to be a promising alternative biofuel in terms of sustainability and environmental friendliness because of its desirable properties. High purity isopropanol–butanol–ethanol (IBE) mixture can be directly used as gasoline additive. However, the purification process of IBE is hindered because of its low concentration and high energy consumption. In order to reduce energy consumption and improve the efficiency of the IBE purification process, two novel processes combining liquid–liquid extraction with extractive distillation or azeotropic distillation are proposed. Moreover, the heat integration designs of the processes are carried out to further reduce energy. These processes are compared with regard to energy, economic, environmental and exergy impact. RESULTS The results show that the energy consumption of these enhanced processes are effectively reduced compared with the original process in the literature. Among them, the thermal integrated process of liquid–liquid extraction combined with extractive distillation is the best design, which has a total annual cost of $32.656 × 105 and an energy consumption of 5936.94 kW. CONCLUSION Compared with the original process, this process can save 71.33% of energy consumption. © 2021 Society of Chemical Industry

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Effects of dilute gas on combustion and emission characteristics of a common-rail diesel engine fueled with isopropanol-butanol-ethanol and diesel blends

Cited by 37 publications

References 32 publications

Research of Energy and Ecological Indicators of a Compression Ignition Engine Fuelled with Diesel, Biodiesel (RME-Based) and Isopropanol Fuel Blends

Research of Energy and Ecological Indicators of a Compression Ignition Engine Fuelled with Diesel, Biodiesel (RME-Based) and Isopropanol Fuel Blends

Optical investigation on combustion and soot formation characteristics of isopropanol‐butanol‐ethanol (IBE)/diesel blends

A novel energy‐efficient extraction‐assisted distillation design for isopropanol–butanol–ethanol purification for use of gasoline additive

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