Low temperature spray combustion of acetone–butanol–ethanol (ABE) and diesel blends

Zhou, Nan; Huo, Ming; Wu, Han; Nithyanandan, Karthik; Lee, Chia-fon F.; Wang, Qingnian

doi:10.1016/j.apenergy.2013.11.035

Cited by 143 publications

(46 citation statements)

References 40 publications

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“…However, there is trade-off relation between NO x and soot formation for combustion of a diesel engine [26,27]. These literatures have focused on the low-temperature combustion (LTC) [8,[28][29][30][31]. The results support the view that LTC has the potential to reduce soot and NO X emission simultaneously.…”

Section: Introductionsupporting

confidence: 72%

Spray Combustion Characteristics and Soot Emission Reduction of Hydrous Ethanol Diesel Emulsion Fuel Using Color-Ratio Pyrometry

Zhang

et al. 2017

Energies

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To elucidate the relationship between physicochemical properties, spray characteristics, and combustion performance, a series of experiments have been conducted in a constant volume vessel with injection of hydrous ethanol diesel emulsion and regular diesel. HE30 (emulsion with 30% volume fraction of 20% water-containing ethanol and 70% volume fraction of 0# diesel) is developed using Shah's technique and regular diesel is also employed for comparison. Firstly, the physicochemical properties of two kinds of fuels are investigated. Then, the non-evaporating and evaporating spray characteristics are examined through the high-speed shadowgraphs. Finally, spray combustion experiments under different ambient oxygen concentrations are carried out, and color-ratio pyrometry (CRP) is applied to measure the flame temperature and soot concentration (KL) distributions. The results indicate that the physicochemical properties, such as density, surface tension, kinematic viscosity, cetane number, and oxygen content, have significant impact on the spray mixture formation and combustion performance. HE30 exhibits lower soot emissions than that of regular diesel. Further analysis supports the standpoint that the hydrous ethanol diesel emulsion can suppress the soot and NO x simultaneously. Therefore, the hydrous ethanol diesel emulsion has great potential to be an alternative clean energy resource.

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Section: Introductionsupporting

confidence: 72%

Spray Combustion Characteristics and Soot Emission Reduction of Hydrous Ethanol Diesel Emulsion Fuel Using Color-Ratio Pyrometry

Zhang

et al. 2017

Energies

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“…[22]). The flame lift-off length was defined as the position closest to the injector where significant flame luminosity was observed.…”

Section: Diagnosticsmentioning

confidence: 93%

“…It was found that neat ABE and neat butanol have similar characteristics on spray and combustion performance, but ABE shows an even higher potential on soot emission reduction. Zhou et al [22] have recently showed that ABE-Diesel blends presented lower soot with better combustion efficiency relative to diesel at low ambient temperatures and low ambient oxygen concentrations, and observed that the ignition delay of ABE20 starts deviating from that of pure diesel at lower ambient temperatures (see Fig. 1).…”

Section: Introductionmentioning

confidence: 91%

“…The combustion phasing of ABE could be advanced by increasing the acetone content due to acetone's higher volatility (see Table 1) which would enhance the vaporization of the fuel mixture, and further influence the ignition delay. Therefore, in the current work, the ABE components ratios were adjusted to be different from the typical components ratio done in previous works (Acetone:Butanol:Ethanol equals to 3:6:1) [22] to figure out the effect of single components in ABE in the combustion of blends. In the current study, all the blends were mixed using individual fuels in order to control the components ratio precisely.…”

Section: Introductionmentioning

confidence: 98%

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Impacts of acetone on the spray combustion of Acetone–Butanol–Ethanol (ABE)-Diesel blends under low ambient temperature

Nithyanandan

Zhou

et al. 2015

Fuel

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“…Chang et al [8] found that the ABE-diesel blends even with small amount of water were stable in the stability tests. Recently, the spray combustion characteristics of A-B-E and diesel blends were investigated in a constant volume chamber, and it was reported that ABE-diesel blends presented better combustion efficiency and lower soot emission [9][10][11]. Occurrences of Microexplosions were also reported due to the higher volatility differential among the components of ABEdiesel blends, ultimately improving the combustion performance.…”

Section: Introductionmentioning

confidence: 99%

Puffing and Micro-Explosion Behavior in Combustion of Butanol/Jet A-1 and Acetone-Butanol-Ethanol (A-B-E)/Jet A-1 Fuel Droplets

Rao

Karmakar

Som

2017

Combustion Science and Technology

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The present investigation deals with the puffing and micro-explosion characteristics in the combustion of a single droplet comprising butanol/Jet A-1, acetone-butanol-ethanol (A-B-E)/Jet A-1 blends, and A-B-E. The onset of nucleation, growth of vapor bubble and subsequent breakup of droplet for various fuel blends have been analyzed from the high-speed images. Puffing was observed to be the dominant phenomenon in 30% butanol blend, while micro-explosion was found to be the dominant one in other fuel blends (blend with 50% butanol or 30% A-B-E or 50% A-B-E). It was observed that puffing always preceded the micro-explosion. The probability of micro-explosion in droplets with A-B-E blends was found to be higher than that of butanol blends. Although the rate of bubble growth was almost similar for all butanol and A-B-E blends, the final bubble diameter before the droplet breakup was found to be higher for 50/50 blends than that of 30/70 blends. The occurrence of microexplosion shortened the droplet lifetime, and this effect appeared to be stronger for droplets with 50/50 composition. Micro-explosion led to the ejection of both larger and smaller secondary droplets; however, puffing resulted in relatively smaller secondary droplets compared to micro-explosion.Puffing/micro-explosion were also observed in the secondary droplets.

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Low temperature spray combustion of acetone–butanol–ethanol (ABE) and diesel blends

Cited by 143 publications

References 40 publications

Spray Combustion Characteristics and Soot Emission Reduction of Hydrous Ethanol Diesel Emulsion Fuel Using Color-Ratio Pyrometry

Spray Combustion Characteristics and Soot Emission Reduction of Hydrous Ethanol Diesel Emulsion Fuel Using Color-Ratio Pyrometry

Impacts of acetone on the spray combustion of Acetone–Butanol–Ethanol (ABE)-Diesel blends under low ambient temperature

Puffing and Micro-Explosion Behavior in Combustion of Butanol/Jet A-1 and Acetone-Butanol-Ethanol (A-B-E)/Jet A-1 Fuel Droplets

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