Study of turbocharged diesel engine operation, pollutant emissions and combustion noise radiation during starting with bio-diesel or n-butanol diesel fuel blends

Rakopoulos, C.D.; Dimaratos, Athanasios; Giakoumis, Evangelos G.; Rakopoulos, Dimitrios C.

doi:10.1016/j.apenergy.2011.03.051

Cited by 209 publications

(60 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Observing figure 2a, one can see that the level of oxygen emitted by the engine increased as the rotation increased for all configurations studied, corroborating with data obtained by RAKOPOULUS et al (2011), where they observed that high engine speeds improve the quality of the air and fuel mixture. This result is a consequence of a higher air volume inside the cylinders, and it is proportional to the engine displacement, its speed and the air density that reaches the cylinder (GIACOSA, 1980).…”

Section: Resultssupporting

confidence: 79%

“…By doing that, one gets more power at the same displacement (GIACOSA, 1980;MÁRQUEZ, 2012). According to RAKOPOULUS et al (2011), engine speeds have a direct relation to the volume of air admitted, altering the quality of the air and fuel mixture. Farias et al To have significant gains of engine power, besides adding the kit, it is also necessary to increase the volume of fuel injected in the cylinder (SIMS et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Air and fuel supercharge in the performance of a diesel cycle engine

et al. 2017

View full text Add to dashboard Cite

This paper aimed to evaluate the performance of a Diesel cycle engine, changing the configurations for the air and fuel supply system. Variables analyzed were torque, power, specific fuel consumption and thermal efficiency in four different engine configurations (aspirated, aspirated + service, turbocharged + service and turbocharged). For that, there were dynamometer experiments by power take-off of an agricultural tractor. The experimental outline used was entirely randomized, in a bifatorial design with three repetitions. Results indicated that the engine supercharge, compared to its original configuration, provided a significant increase of torque and power. Only the addition of turbo does not caused a significant effect in the engine performance. Application of turbocharger provides an improvement in the burning of the air/fuel mixture, which favors the increase of engine power and; consequently, reduced the specific fuel consumption.

show abstract

Section: Resultssupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Air and fuel supercharge in the performance of a diesel cycle engine

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Therefore, butanol was also tested as a diesel additive or alternative content (Yao et al, 2010;Rakopoulos et al, 2011;Campos-Fernandez et al, 2012;Lin et al, 2012;Liu et al, 2013a). Adding hydrous/dehydrate butanol or acetone to W20 to form B30, B′30, A3, A′3, B30A3, and B′30A′3 reduced both mass and TEQ concentrations of PCDD/F.…”

Section: Emissions Of Pcdd/fsmentioning

confidence: 99%

Persistent Organic Pollutant Reductions from a Diesel Engine Generator Fueled with Waste Cooking Oil-based Biodiesel Blended with Butanol and Acetone

Tsai

Lin

Chen

et al. 2017

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

This investigation focuses on the effects on emissions of persistent organic pollutants (POPs) (polychlorinated dibenzop-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) and polybrominated diphenyl ethers (PBDEs)) from a diesel engine fuelled by 20 vol% waste cooking oil-based biodiesel (W20) blended with various fractions of dehydrate/hydrous butanol (B/B′) and acetone (A/A′). The emission concentrations of the POPs were in the order PBDE ≫ PBDD/F > PCB > PCDD/F, regardless of the blending fuel or engine load. The POP with highest concentration was PBDE, being 2-3 times that of the others. Conversely, the magnitude of emitted toxicity followed the order PCDD/F > PCB ≈ PBDD/F, while PCDD/F emissions had about 10 times the toxicity concentrations of PCBs and PBDD/Fs. Among the dioxin compounds, the emissions of PCDDs represented 46-73% (average 57%) and 50-72% (average 59%) of total PCDD/F mass and toxicity concentrations, respectively, and were which and were thus significantly higher than those of PCDFs. The non-ortho-PCB contributed almost all toxicity (~100%) of 14 dioxin-like-PCBs, even though its contribution in mass was only 9-32% (average 16%) among the congeners. Similarly, PBDFs accounted for ~100% of toxicity of PBDD/Fs. Additionally, deca-BDEs contributed to most of the mass emissions of PBDEs (47.0-90.5%, 82.4% in average), while nona-BDEs and tri-to octaBDEs only contributed 10% and 8%, respectively. The reductions of the absolute mass concentrations of POPs from W20 were in the order PBDEs >> PBDD/Fs > PCDD/Fs ≈ PCBs for all multi-component diesel blends. The reduction fractions of POPs were in the order PCDD/F > PCB ≈ PBDD/F > PBDE, and those of TEQ were PCDD/F > PCB > PBDD/F. Thus, the addition of butanol and acetone, whether pure or hydrous, could further lower the POP emissions from W20.

show abstract

“…Non-edible oil sources require large-scale cultivation which can take up the land resources meant for food crops. Alcohols can be obtained by anaerobic fermentation of lignocellulosic biomass which includes agricultural waste biomass (rice straw, cornstalks, and sugarcane bagasse), forestry biomass (wood-pulp, saw-mill, and paper-mill discards) without much reliance on food crops (Rakopoulos et al 2011). Further energy crops like switchgrass (Panicum virgatum) and elephant grass can produce a high yield of lignocellulosic biomass that can serve as raw materials for alcohol production.…”

Section: Introductionmentioning

confidence: 99%

Emission and performance analysis of a diesel engine burning cashew nut shell oil bio diesel mixed with hexanol

Munuswamy²,

et al. 2018

View full text Add to dashboard Cite

In this study, the effect of doping hexanol into biodiesel which is from neat cashew nut shell biodiesel oil on the emissions and the performance characteristics was studied in a constant speed diesel engine. The main purpose of this work is to reduce various emissions and also to improve the performance of the diesel engine when fueled with blends of hexanol and neat cashew nut shell biodiesel. Cashew nut shell oil is not edible, and hence it can be used as a viable alternative to diesel. Cashew nut shell biodiesel is prepared by conventional transesterification. Hexanol with 99.2% purity was employed as an oxygenated additive. Experimental studies were conducted by fueling diesel as a baseline and by fueling hexanol and neat cashew nut shell biodiesel mixture. A fuel comprising 10% (by volume) of hexanol and 90% (by volume) neat cashew nut shell biodiesel was referred to as CNSBD900H100 and fuel comprising 20% (by volume) of hexanol and 80% (by volume) of neat cashew nut shell biodiesel was referred to as CNSBD800H200. This study also investigated the possibility of using pure biofuel in an unmodified naturally aspirated diesel engine. The outcome of this study showed that adding hexanol at 10% and 20% (by volume) to cashew nut shell biodiesel results in a reduction in emissions. In addition, a significant improvement in brake thermal efficiency and reduction in brake-specific fuel consumptions were achieved. Hence, it could be concluded that hexanol could be a viable and promising additive for improving the drawbacks of biodiesel when it was used to fuel an unmodified diesel engine.

show abstract

Study of turbocharged diesel engine operation, pollutant emissions and combustion noise radiation during starting with bio-diesel or n-butanol diesel fuel blends

Cited by 209 publications

References 47 publications

Air and fuel supercharge in the performance of a diesel cycle engine

Air and fuel supercharge in the performance of a diesel cycle engine

Persistent Organic Pollutant Reductions from a Diesel Engine Generator Fueled with Waste Cooking Oil-based Biodiesel Blended with Butanol and Acetone

Emission and performance analysis of a diesel engine burning cashew nut shell oil bio diesel mixed with hexanol

Contact Info

Product

Resources

About