Effects of Oxygenated Biomass Fuels on the Performance of Diesel Engine and After-Treatment System

Zhang, Jingxian; Chen, Guisheng; Shen, Yinggang; Li, Bing; Li, Qing

doi:10.1115/1.4049282

Cited by 7 publications

(1 citation statement)

References 43 publications

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“…In contrast, there is relatively less research on the DPF performance when fueling with diesel/PODE n mixture. Recently, Zhang et al [32] studied the effect of PODE n addition on the performances of a diesel oxidation catalyst (DOC) and catalytic diesel particulate filter (cDPF) after-treatment system. The results showed that the pressure drop of the cDPF can be greatly reduced by fueling with diesel/PODEn mixture, and thus the active regeneration frequency can be effectively decreased.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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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Numerical-Experimental Optimization of the Common-Feeding Injection System Concept for Application to Light-Duty Commercial Vehicles

Jin

Vento

Zhang

et al. 2021

Journal of Energy Resources Technology

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The innovative Common Feeding (CF) fuel injection system has been designed for a light duty commercial vehicle diesel engine in order to reduce production costs and to allow easy installation on the engine, compared to a Common Rail (CR) system. In the CF apparatus, an additional delivery chamber is mechanically fixed at the high-pressure pump outlet, and the rail is removed from the hydraulic circuit. Experimental tests have been carried out on a hydraulic test rig in order to compare the general performance of the prototypal CF system with those of a CR system equipped with different rail volumes. In the cases of the double injections, the fluctuations of the injected mass pertaining to the second injections have been investigated during dwell time sweeps, and design solutions have been provided to minimize such oscillations. Moreover, an injection system numerical diagnostic model has been validated, and the reduced accumulation volumes linked phenomena have been analyzed. In general, the performance of the injection systems with different hydraulic capacitances or shapes of the accumulator are similar. One difference is that the injection rate features slightly different slopes during the rising phases; furthermore, cycle-to-cycle dispersions in the injected mass increase to some extent when the hydraulic capacitance is dramatically decreased. Finally, the frequencies of the free pressure waves, due to the water hammer occurring at the end of a hydraulic injection, are different when the shape of the accumulation volume changes, whereas these frequencies are independent of the accumulation volume sizes.

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A Comparative Analysis of Flame Temperature, Radiation Behaviors, and NOx Emission of an Oil Burner Fueled With Nano Biodiesel Blend Fuel Containing Suspended Energetic and Non-energetic Metal Nanoparticles

Pourhoseini

Ghodrat

2021

Journal of Energy Resources Technology

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This study presents a comparative experimental approach to analyze flame temperature, emissions and radiation behaviors of an oil furnace fueled with nano biodiesel blend fuel containing suspended energetic and non-energetic nanoparticles (NPs). Iron NPs were used as energetic nanoparticles and alumina (Al2O3) was selected as non-energetic NPs. A dilute homogeneous mixture (500 ppm) was provided from each NPs in B20 blend fuel. The fuels were burned in an oil burner subsequently and Infrared Radiation (IR) images of flame, profiles of flame temperature, luminous and total radiation and NOx and CO emissions were gauged and compared. Measurements showed that both NPs improve the evaporation rate of fuel droplets and displace the peak of flame temperature to the flame upstream region. Moreover, nano biodiesel blend fuel containing energetic iron NPs elevates flame temperature while the non-energetic alumina NPs reduce the peak of flame temperature. In Addition, both NPs strengthen the nucleation and growth of intermediate soot particles. These fuels containing suspended particles, also lead to an increase in the intermediate soot particles content of flame and flame emissivity. This increases IR, luminous and total flame radiation. The improvement of average flame radiative flux for nano biodiesel blend fuel containing energetic iron NPs and non-energetic alumina NPs are as high as 25% and 10%, respectively. Also, using energetic iron NPs and non-energetic alumina NPs in B20 fuel reduces the NOx emission by 13% and 11%, respectively.

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Effects of Oxygenated Biomass Fuels on the Performance of Diesel Engine and After-Treatment System

Cited by 7 publications

References 43 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

Numerical-Experimental Optimization of the Common-Feeding Injection System Concept for Application to Light-Duty Commercial Vehicles

A Comparative Analysis of Flame Temperature, Radiation Behaviors, and NOx Emission of an Oil Burner Fueled With Nano Biodiesel Blend Fuel Containing Suspended Energetic and Non-energetic Metal Nanoparticles

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