Engine preheating under real-world subfreezing conditions provides less than expected benefits to vehicle fuel economy and emission reduction for light-duty vehicles

Olin, Miska; Leinonen, Ville; Martikainen, Sampsa; Mäkinen, Ukko-Ville; Oikarinen, Henri; Mikkonen, Santtu; Karjalainen, Panu

doi:10.1016/j.apenergy.2023.121805

Cited by 2 publications

(6 citation statements)

References 25 publications

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“…Due to the losses of particles in the sampling lines and in bifurcated-flow diluters (marked as BDs in Fig. 2 ), the observed samples of particles have higher diameters than reported cut-off sizes of the instruments [ 2 ], namely 6.7, 12 and 23 nm for CPCs with nominal cut-off sizes 2.5, 10, and 23 nm, respectively. No specific corrections for sample line losses and particle losses in diluters have been made.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 87%

“…The Figure is modified from the Fig. 2 presented in [ 2 ]. The names of the instruments in the top figure are corresponding to the names used in the text.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…All variables are described in Table 7 . Detailed description of the data analysis tools and steps are given in [ 2 ]. The measurements are reported as a mass of six species: organic, sulfate, nitrate, ammonium, chloride (all non-refractory), and refractory black carbon.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The codes for emission factor calculation of CPC battery have been provided in the MATLAB code script EF_example.m. The method calculating the emission factor is the same as in [ 2 ]. Shortly, the dilution ratio (DR) between the tailpipe and sampling inlet in ATMo-Lab is calculated in a hybrid way: using the method that is based on the dependence of CO2-based DR:

when CO2 is produced and using Near-Wake Dilution model introduced in [ 12 ] when the vehicle is not producing CO2.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The dataset in this data article includes also various variables that were not used in the analysis of the original research article [ 2 ]. The dataset enables further research about e.g.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Dataset of vehicle chase measurements in real-world subfreezing winter conditions

Leinonen,

Olin,

Martikainen

et al. 2024

Data in Brief

Self Cite

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Section: Experimental Design Materials and Methodsmentioning

confidence: 87%

“…The Figure is modified from the Fig. 2 presented in [ 2 ]. The names of the instruments in the top figure are corresponding to the names used in the text.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

when CO2 is produced and using Near-Wake Dilution model introduced in [ 12 ] when the vehicle is not producing CO2.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The dataset in this data article includes also various variables that were not used in the analysis of the original research article [ 2 ]. The dataset enables further research about e.g.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dataset of vehicle chase measurements in real-world subfreezing winter conditions

Leinonen,

Olin,

Martikainen

et al. 2024

Data in Brief

Self Cite

View full text Add to dashboard Cite

Particle Number Concentration and SEM-EDX Analyses of an Auxiliary Heating Device in Operation with Different Fossil and Renewable Fuel

Nagy,

Szabó,

Zsoldos

et al. 2024

Inventions

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Pollution from road vehicles enters the air environment from many sources. One such source could be if the vehicle is equipped with an auxiliary heater. They can be classified according to whether they work with diesel or gasoline and whether they heat water or air. The subject of our research series is an additional heating system that heats the air, the original fuel is gasoline. This device has been built up in a modern engine test bench, where the environmental parameters can be controlled. The length of the test cycle was chosen to be 30 min. The tested fuels were E10, E30, E100 and B7. A 30-min operating period has been chosen in the NORMAL operating mode of the device as a test cycle. The focus of the tests was particle number concentration and soot composition. The results of the particle number concentration showed that renewable fuel content significantly reduces the number concentration of the emitted particles (9.56 × 108 #/cycle for E10 vs. 1.65 × 108 #/cycle for E100), while B7 causes a significantly higher number of emissions than E10 (3.92 × 1010 #/cycle for B7). Based on the elemental analysis, most deposits are elemental carbon, but non-organic compounds are also present. Carbon (92.18 m/m% for E10), oxygen (6.34 m/m% for E10), fluorine (0.64 m/m% for E10), and zinc (0.56 m/m% for E10) have been found in the largest quantity of deposits taken form the combustion chamber.

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Engine preheating under real-world subfreezing conditions provides less than expected benefits to vehicle fuel economy and emission reduction for light-duty vehicles

Cited by 2 publications

References 25 publications

Dataset of vehicle chase measurements in real-world subfreezing winter conditions

Dataset of vehicle chase measurements in real-world subfreezing winter conditions

Particle Number Concentration and SEM-EDX Analyses of an Auxiliary Heating Device in Operation with Different Fossil and Renewable Fuel

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