Energy balance analysis, combustion characteristics, and particulate number concentration-NO trade-off of a heavy-duty diesel engine fueled with various PODEn/diesel blends

Zhao, Yuhong; Xie, Yijing; Wang, X.C.; Li, Zheyang; Niu, Tianlin; Liu, Shenghua

doi:10.1016/j.enconman.2020.113489

Cited by 37 publications

(13 citation statements)

References 55 publications

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“…The particulate number concentrations of P10 were significantly lower than those of D100 for various engine loads. This trend was widely reported in previous studies [19,33]. The main reason for the reduction of PN may be the dilution and oxygen effects of PODE n addition.…”

Section: The Size-dependent Particulate Number Removal Efficiencysupporting

confidence: 84%

“…The PODE was blended with diesel at 10% by volume, which was noted as P10. The physical and chemical properties of both fuels can be seen in our previous studies [19,47].…”

Section: Experimental Setup and Fuelsmentioning

confidence: 92%

“…In addition, adding PODE n also significantly decreased the total particulate number concentrations (PNCs) as expected. Reported by Zhao et al [19], under a speed of 1900 rpm and a brake mean effective pressure (BMEP) of 0.41 MPa, the PNCs for diesel, P10, P20, and P30 were 3.027 × 10 6 , 1.623 × 10 6 , 1.257 × 10 6 , and 1.068 × 10 6 #/cm 3 , respectively. These trends can be attributed to two aspects.…”

Section: Introductionmentioning

confidence: 97%

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Filtration Efficiency and Regeneration Behavior in a Catalytic Diesel Particulate Filter with the Use of Diesel/Polyoxymethylene Dimethyl Ether Mixture

et al. 2021

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Polyoxymethylene dimethyl ether (PODEn) is a promising diesel additive, especially in particulate matter reduction. However, how PODEn addition affects the filtration efficiency and regeneration process of a catalytic diesel particulate filter is still unknown. Therefore, this experimental work investigated the size-dependent particulate number removal efficiency under various engine loads and exhaust gas recirculation ratios when fueling with diesel and diesel/PODEn mixture. In addition, the regeneration behavior of the cDPF was studied by determining the break-even temperatures for both tested fuels. The results showed that the cDPF had lower removal efficiencies in nucleation mode particles but higher filtration efficiencies in accumulation mode particles. In addition, the overall filtration efficiency for P10 particles was higher than that for D100 particles. Positioning the upstream cDPF, increasing the EGR ratio slightly decreased the number concentration of nucleation mode particles but greatly increased that of accumulation mode particles. However, increasing the EGR ratio decreased the removal efficiency of nanoparticles, and this effect was more apparent for the P10 case. Under the same period of soot loading, the pressure drop of P10 fuel was significantly lower than that of diesel fuel. In addition, a significantly lower BET was observed for the P10 fuel, in comparison with D100 fuel. In conclusion, adopting cDPF is beneficial for fueling with P10 in terms of the overall filtration efficiency in the particulate number and the lower input energy requirement for active regeneration. However, with the addition of EGR, the lower filtration efficiencies of nanoparticles should be concerned, especially fueling with diesel/PODEn mixture.

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Section: The Size-dependent Particulate Number Removal Efficiencysupporting

confidence: 84%

“…The PODE was blended with diesel at 10% by volume, which was noted as P10. The physical and chemical properties of both fuels can be seen in our previous studies [19,47].…”

Section: Experimental Setup and Fuelsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 97%

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Filtration Efficiency and Regeneration Behavior in a Catalytic Diesel Particulate Filter with the Use of Diesel/Polyoxymethylene Dimethyl Ether Mixture

et al. 2021

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“…The high oxygen content of the PODEn promoted the condition of oxygen enrichment, leading to a rapid increase in the NOx emissions. However, blending with PODEn resulted in a slight decrease in the combustion temperature [21,22]. Under low-load conditions, the temperature in the cylinder was relatively low, and the NOx emissions increased slightly due to the joint action of the two in uences.…”

Section: Emission Characteristicsmentioning

confidence: 99%

Performance and emissions of a high-pressure common-rail diesel engine fueled by coal-based diesel fuels and their blends with polyoxymethylene dimethyl ethers

Zhao

Niu

et al. 2022

Preprint

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The objective of this study was to investigate the performance and emissions of a diesel engine fueled by coal-based diesel fuels and their blends with oxygenated fuel polyoxymethylene dimethyl ethers (PODEn). First, coal-based Fischer–Tropsch diesel fuel was blended with hydrogenated diesel fuel at three volume ratios of 40%/60%, 50%/50%, and 60%/40%, denoted as T6W4, T5W5, and T4W6, respectively. Then, PODEn were added into the T4W6 fuel with the volume ratios of 10%, 20%, and 30% to evaluate its effects on the performance and emissions of a coal-based diesel engine. The results showed that the output torques and powers of the three coal-based diesel blends were slightly lower than those of the petroleum diesel fuel. The brake specific fuel consumption (BSFC) of the coal-based diesel fuels was almost the same as that of the petroleum diesel fuel. The brake thermal efficiencies (BTE) of the coal-based diesel blends were slightly lower than that of the petroleum diesel fuel, and the maximum reduction was 1.59%. The pollutant emissions of T5W5 were the closest to those of petroleum diesel fuel. The NOx emissions of T4W6 were lower, with a maximum decrease of 12.16% compared with the petroleum diesel. The carbon monoxide (CO) and hydrocarbon (HC) emissions of T6W4 were the highest, and the smoke emissions of T4W6 and T6W4 were higher than those of petroleum diesel fuel. Adding PODEn into T4W6 lowered the engine power and torque but increased the BSFC and BTE. The output torque and power of the diesel engine were further reduced when PODEn were blended with T4W6. With an increase in the PODEn blending ratio, BSFC and BTE increased gradually, and the maximum increase in the BTE was 1.57%. Blending PODEn with the fuel effectively improved the emission characteristics of the coal-based diesel fuels, and the NOx emissions increased slightly. The emissions of HC, CO, and smoke were reduced significantly, with maximum reductions of 19.15%, 26.65%, and 82.35%, respectively.

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“…10 Several studies investigated different blends of OME with diesel fuel to conform to the EN590 standard, which showed a signicant reduction in local emissions for both heavy duty and passenger cars. [11][12][13][14][15][16][17][18][19][20][21][22][23][24] Under certain conditions, even a mixture of 10 vol% OME with diesel can lead to a signicant reduction in NO x and soot emissions. 12 A stoichiometric evaluation showed that already 10 vol% OME blend with diesel will correspond to ca.…”

Section: Introductionmentioning

confidence: 99%

Techno-economic assessment and carbon footprint of processes for the large-scale production of oxymethylene dimethyl ethers from carbon dioxide and hydrogen

Mantei

Ali

Baensch

et al. 2022

Sustainable Energy Fuels

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Energy balance analysis, combustion characteristics, and particulate number concentration-NO trade-off of a heavy-duty diesel engine fueled with various PODEn/diesel blends

Cited by 37 publications

References 55 publications

Filtration Efficiency and Regeneration Behavior in a Catalytic Diesel Particulate Filter with the Use of Diesel/Polyoxymethylene Dimethyl Ether Mixture

Filtration Efficiency and Regeneration Behavior in a Catalytic Diesel Particulate Filter with the Use of Diesel/Polyoxymethylene Dimethyl Ether Mixture

Performance and emissions of a high-pressure common-rail diesel engine fueled by coal-based diesel fuels and their blends with polyoxymethylene dimethyl ethers

Techno-economic assessment and carbon footprint of processes for the large-scale production of oxymethylene dimethyl ethers from carbon dioxide and hydrogen

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