Oxides of nitrogen emissions from biodiesel-fuelled diesel engines

Sun, Jingli; Caton, Jerald A.; Jacobs, Timothy J.

doi:10.1016/j.pecs.2010.02.004

Cited by 330 publications

(143 citation statements)

References 102 publications

(175 reference statements)

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“…Biodiesels used as alternative fuels in diesel engines reduce the emissions of hydrocarbons (HC), carbon monoxide (CO), sulfur oxide (SO 2 ), and PAHs (Antolin et al, 2002;Beer et al, 2002;Cardone et al, 2002;Durbin et al, 2002;Dorado et al, 2003;Kalam et al, 2003;Kalligeros et al, 2003;Goodrum and Geller, 2005;Hu et al, 2005;Legreid et al, 2007;Yuan et al, 2007;Chien et al, 2009;Pehan et al, 2009;Yuan et al, 2009;Tsai et al, 2010;. Previous studies and measurements of NO x emissions from biodiesel showed an increase in NO x emissions (Scholl and Sorenson, 1993;Graboski et al, 1996;Choi et al, 1997;Graboski and McCormick, 1998;Yoshimoto et al, 1999;McCormick et al, 2001;Grimaldi et al, 2002;Tat and Van Gerpen, 2003;Tat, 2004;Saravanan et al, 2010;Sun et al, 2010). The problem of high NO x emissions from biodiesel-diesel engines can be mitigated by the use of low-temperature combustion, reformulated biodiesel, selective catalytic reduction, and exhaust gas recirculation (Hess et al, 2007;Tsolakis et al, 2007;Muncrief et al, 2008;Tsolakis et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Emissions of Regulated Pollutants and PAHs from Waste-cooking-oil Biodiesel-fuelled Heavy-duty Diesel Engine with Catalyzer

Liu

Lin

Hsu

2012

Aerosol Air Qual. Res.

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The development of biodiesels is being driven by the need for reducing emissions from diesel engines without modifying engines and for saving energy. The major obstacle to biodiesel commercialization is the high cost of raw materials. Biodiesel from waste cooking oil is an economical source and an effective strategy for reducing the raw material cost. Although biodiesels made from waste cooking oil have been previously investigated, PAH emissions from heavy-duty diesel engines (HDDEs) with catalyzer fueled with biodiesel from waste cooking oil and its blend with ultra-low sulfur diesel (ULSD) for the US-HDD transient cycle have seldom been addressed. Experimental results indicate that ULSD/WCOB (biodiesel made from waste cooking oil) blends had lower PM, HC, and CO emissions but higher CO 2 and NO x emissions when compared with that of ULSD. Using ULSD/WCOB blends instead of ULSD decreased PAHs by 14.1%-53.3%, PM by 6.80%-15.1%, HC by 6.76%-23.5%, and CO by 0.962%-8.65% but increase CO 2 by 0.318-1.43% and NO x by 0.384-1.15%. Using WCOB is an economical source and an effective strategy for reducing cost, and solves the problem of waste oil disposal.

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Section: Introductionmentioning

confidence: 99%

Emissions of Regulated Pollutants and PAHs from Waste-cooking-oil Biodiesel-fuelled Heavy-duty Diesel Engine with Catalyzer

Liu

Lin

Hsu

2012

Aerosol Air Qual. Res.

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“…for blend number 13. The possible reasons for this could be advanced injection timing, higher CN, higher viscosity, presence of oxygen, and shorter ignition delay [56,57]. Advancement of injection timing is responsible for advancing the start of combustion.…”

Section: Nox Emissionsmentioning

confidence: 99%

“…Advancement of injection timing is responsible for advancing the start of combustion. This may produce higher peak temperature inside the cylinder and may increase the rate of NOx production [56,57]. Besides that, this also results in a longer residence time, allowing NOx production to continue.…”

Section: Nox Emissionsmentioning

confidence: 99%

The effect of oxygen content in soapnut biodiesel-diesel blends on performance of a diesel engine

Pattanaik¹,

Jena²,

Misra³

2022

Int. J. Automot. Mech. Eng.

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In this study, 18 soapnut biodiesel-diesel blends along with soapnut oil as an additive in some blends were prepared and used in a diesel engine to investigate the effect of oxygen content in the fuel blends on engine performance and emission characteristics. Considering the large variations in the oxygen content of these fuel blends, the obtained results were demonstrated based on varying fuel oxygen content. Findings showed that the best engine performance was achieved with a fuel oxygen content in the range of 1.8%-3.0%, whereas the best engine emissions were obtained with a fuel oxygen content in the range of 0.71%-2.37%. Hence, considering both engine performance and emissions, the optimal zone of fuel oxygen content was found to be in the range of 1.80%-2.37%. Thus, it can be concluded that biodiesel blended fuels having an oxygen content in the aforesaid range can be successfully used in diesel engines with comparable engine performance and emissions to those using diesel fuel. Nevertheless, further research is required to reduce the fuel oxygen content to this optimal range if the blends consist of higher biofuel components. Besides that, the use of suitable additives in the biodiesel blended fuels may be a viable option to achieve the said purpose, which needs further research.

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“…This scheme was executed for both diesel and biodiesel fuels with typical chemical formulas of C14.09H24.78and C18.74H34.43O2 [50], and mixtures of these fuels (Table 1) at different parameters as given in Table 2. Table 1.…”

Section: Equilibrium Combustion Modelmentioning

confidence: 99%

Estimation of equilibrium combustion products of diesel-biodiesel fuel blends using the developed solving process for CnHm and CαHβOg fuel blends

Yıldız¹,

Çeper²

2022

Int. J. Automot. Mech. Eng.

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This study investigates the combustion products of diesel-biodiesel fuel blends by considering its chemical equilibrium state. In order to determine the equilibrium combustion products involving 10 species, a solving scheme which can be used for different fuel blends consisting of CnHm and CHO generic structures was developed. The constituted solving scheme was then applied for four different mixtures which were diesel, 20 and 50 % biodiesel additions (by volume), and 100% biodiesel. The change in mole fraction of the fuels and their blends was determined as a function of temperature, pressure and equivalence ratio. Besides, mass-based combustion product rates of CO2, CO and NO for a unity of fuel mass were also investigated for different temperatures and equivalence ratios. The results show that the addition of biodiesel to diesel fuel does not have any significant effect on the change in the mole fraction of the combustion products. However, the addition of biodiesel reduces slightly the formation of CO and NO, while CO2 shows a slightly increasing trend. In terms of mass-based combustion product rates, the biodiesel addition reduces the amount of CO2, CO and NO products because it increases the molecular weight of the fuel blends.

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Oxides of nitrogen emissions from biodiesel-fuelled diesel engines

Cited by 330 publications

References 102 publications

Emissions of Regulated Pollutants and PAHs from Waste-cooking-oil Biodiesel-fuelled Heavy-duty Diesel Engine with Catalyzer

Emissions of Regulated Pollutants and PAHs from Waste-cooking-oil Biodiesel-fuelled Heavy-duty Diesel Engine with Catalyzer

The effect of oxygen content in soapnut biodiesel-diesel blends on performance of a diesel engine

Estimation of equilibrium combustion products of diesel-biodiesel fuel blends using the developed solving process for CnHm and CαHβOg fuel blends

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