Pollutant Emissions and Combustion Efficiency Assessment of Engines Using Biodiesel

Paredes-Rojas, Juan Carlos; Miguel, Christopher René Torres-San; Medina, R.; Leal-Naranjo, José-Alfredo; Hernández, Fidel de la Cruz Hernández; Costa‐Castelló, Ramon

doi:10.3390/app10238646

Cited by 7 publications

(3 citation statements)

References 28 publications

(32 reference statements)

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“…Nevertheless, we cannot exclude a possible effect of the higher FAME content and the higher density in the 2019 ILCE on NO x and CO 2 [29][30][31]. Measurable differences have been reported between no, 5%, or 10% biodiesel content in the fuel [32], or even between 2% and 4% for NO x [33].…”

Section: Discussionmentioning

confidence: 92%

Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

et al. 2021

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In the last years, the in-use emissions of vehicles are measured on the road with portable emissions measurement systems (PEMS). PEMS cannot measure as accurately as the laboratory grade equipment, and studies on their measurement uncertainty have continued since their appearance in the market. In this study we compared PEMS to laboratory grade equipment in Italian laboratories testing a diesel “Golden” (i.e., reference) vehicle for two consecutive years. The results showed equal means of PEMS and laboratory grade equipment for carbon dioxide (CO2), nitrogen oxides (NOx), and particle number (PN), with a variability of ±5 g/km for CO2, ±10 mg/km for NOx, and ±1 × 1011 p/km for PN, which further decreased in the second year. For carbon monoxide (CO), the PEMS were on average 5–20 mg/km higher than the bags (variability ±40 mg/km). The main conclusion of this study is that PEMS are accurate under controlled laboratory ambient conditions, without any indications of significant bias.

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Section: Discussionmentioning

confidence: 92%

Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

et al. 2021

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“…The results of other studies on combustion simulations using diesel and biofuels showed a reduction in pollutant gases, with a 23% reduction in H 2 O, 13% in CO 2 , 21% in O 2 , and 21% in N 2 compared with commercial diesel [ 48 ]. This demonstrates the reduction in gases when using biodiesel in combustion [ 49 ].…”

Section: Resultsmentioning

confidence: 99%

Redesign of a Piston for a Diesel Combustion Engine to Use Biodiesel Blends

et al. 2021

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Biofuels represent an energy option to mitigate polluting gases. However, technical problems must be solved, one of them is to improve the combustion process. In this study, the geometry of a piston head for a diesel engine was redesigned. The objective was to improve the combustion process and reduce polluting emissions using biodiesel blends as the fuel. The methodology used was the mechanical engineering design process. A commercial piston (base piston) was selected as a reference model to assess the piston head’s redesign. Changes were applied to the profile of the piston head based on previous research and a new model was obtained. Both models were evaluated and analyzed using the finite element method, where the most relevant physical conditions were temperature and pressure. Numerical simulations in the base piston and the new piston redesign proposal presented similar behaviors and results. However, with the proposed piston, it was possible to reduce the effort and the material. The proposed piston profile presents adequate results and behaviors. In future, we suggest continuing conducting simulations and experimental tests to assess its performance.

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“…Current legislation is forcing the reduction of exhaust emissions, particularly nitrogen oxides (NO x ) and particulate matter (PM) for compression ignition (CI) engines. One of the alternatives to reduce engine exhaust emissions towards this effort is the use of alternative fuels [4,5]. Biofuels and hybrid electric vehicle synergies can effectively contribute to mitigating the dependence on fossil fuels as well as the greenhouse gases and air quality issues associated with their emissions.…”

Section: Introductionmentioning

confidence: 99%

Fischer-Tropsch Diesel and Biofuels Exergy and Energy Analysis for Low Emissions Vehicles

et al. 2021

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This research investigates the effects of a synthetic diesel-like fuel (Fischer-Tropsch diesel) and biofuels (ethanol and biodiesel) fuel blends on the energy-exergy efficiencies and gaseous exhaust emissions characteristics of a compression ignition engine. Two blends of alternative fuels denoted as E15B35FTD50 (15% ethanol, 35% biodiesel, and 50% Fischer-Tropsch diesel) and E15B35D50 (15% ethanol, 35% biodiesel, and 50% diesel) were experimentally studied on a single-cylinder diesel engine and compared to diesel fuel. The results show that the energetic and the exergetic efficiencies of the alternative fuels are comparable to those of the engine fueled with diesel fuel. The unburnt HC, NO, N2O, and NH3 emissions were reduced for the two alternative fuel blends compared to diesel, while CO emissions increased. The light HC species were found to slightly increase for the alternative fuel blends in comparison with diesel fuel. However, the total HC was considerably reduced by the combustion of E15B35FTD50 not only when compared to the diesel fuel combustion, but also when compared to E15B35D50. Overall, these results may contribute to identifying advantages and limitations in terms of energetic-exergetic analysis and emissions for the new generation of conventional diesel and hybrid electric vehicles that aim to achieve future emissions regulations.

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Pollutant Emissions and Combustion Efficiency Assessment of Engines Using Biodiesel

Cited by 7 publications

References 28 publications

Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

Measurements of the Emissions of a “Golden” Vehicle at Seven Laboratories with Portable Emission Measurement Systems (PEMS)

Redesign of a Piston for a Diesel Combustion Engine to Use Biodiesel Blends

Fischer-Tropsch Diesel and Biofuels Exergy and Energy Analysis for Low Emissions Vehicles

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