Real Driving Emission from Vehicle Fuelled by Petrol and Liquefied Petroleum Gas (LPG)

Vučetić, Ante; Sraga, Vjekoslav; Bućan, Boris; Ormuž, Krunoslav; Šagi, Goran; Ilinčić, Petar; Lulić, Zoran

doi:10.55343/cogsust.38

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…The objective function is a minimization of CO2 emissions or consumption, so the optimization prefers medium and higher power classes in which the internal combustion engine works more efficiently. On the other hand, the highest classes generate high NOx emissions, which in this case are not penalized because they are not covered by the objective function (14). The distribution of traction energy, emissions, and consumption for the hybrid vehicle under the RDE cycle is graphically depicted in Figure 7A All emissions and energy shares are expressed relative to the emissions of a nonhybrid vehicle and to the positive traction energy of each cycle.…”

Section: Testing Of Hybrid and Vsp Vehicle Models In Rde Nedc And Wlt...mentioning

confidence: 99%

“…The most significant advantage of HEVs compared with fully electric vehicles (EVs) is their superior range over a single charge and their fast refueling, which is achieved by using chemical energy instead of electrical [12]. Hybrid electric vehicles together form a key solution for increasing efficiency and lowering emissions and a viable strategy for developing countries> This is particularly so with the use of environmentally friendly, synthetic CO 2 -neutral fuels at an affordable price [13] or with the use of alternative fuels, such as LPG, which have significantly lower emissions and a lower CO 2 footprint [14]. Such power trains will certainly find their application in heavy trucks for long distances, special purpose vehicles or off-road and military vehicles [15,16].…”

Section: Introductionmentioning

confidence: 99%

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A New Vehicle-Specific Power Model for the Estimation of Hybrid Vehicle Emissions

Kozina,

Vidović,

Radica

et al. 2023

Energies

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Hybrid electric vehicles are certainly one of the key solutions for improving fuel efficiency and reducing emissions, especially in terms of special vehicles and with the use of CO2-neutral fuels. Determining the energy management strategy and finding the optimal solution with regard to the aforementioned goals remains one of the main challenges in the design of HEVs. This paper presents a new vehicle modeling method, with an emphasis on HEVs, which is based on the frequency analysis of emissions and consumption according to the current specific traction power of the vehicle. An evaluation of the newly introduced model in the RDE, NEDC and WLTP cycle was performed, and the results were compared with the standard verified vehicle model that was created in AVL’s CruiseM R2021.2 software package. Positive traction energies have positive deviations of between 0.35% and 2.85%. The largest deviation in CO2 emissions was recorded for the HEV model in the RDE cycle and in the non-hybrid model in the WLTP cycle and were 3.79% and 4.4%, respectively. All other combinations of cycle and vehicles had deviations of up to about 1%. As expected, the largest relative deviations were recorded for NOx emissions and ranged from 0.13% to 9.62% for HEVs in the WLTP cycle.

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Section: Testing Of Hybrid and Vsp Vehicle Models In Rde Nedc And Wlt...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Vehicle-Specific Power Model for the Estimation of Hybrid Vehicle Emissions

Kozina,

Vidović,

Radica

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…In addition to aesthetic issues, the accuracy, surface quality and mass of parts are also important for the operation of fittings (Takacs, 2023). Another benefit is that improved surface qualities can often reduce friction losses and increase the wear resistance (Kovács et al, 2022), leading to lower emissions (Bagdi et al, 2023;Garai et al, 2020;Vučetić et al, 2022;).…”

Section: Introductionmentioning

confidence: 99%

Investigating the Impact of Productivity on Surface Roughness and Dimensional Accuracy in FDM 3D Printing

Kónya

2024

Period. Polytech. Transp. Eng.

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Over the past three decades, 3D printing technologies have undergone significant advancements, revolutionizing various industries, such as automotive. Additive manufacturing has played a crucial role in reducing product development time and enabling the direct printing of functional parts. One of the key advantages of additive manufacturing is its ability to provide greater design freedom compared to traditional manufacturing methods. This means that complex geometries and varying material properties can be easily printed. In this research paper, the author focused on investigating the impact of layer thickness and part orientation on the surface roughness and accuracy of printed parts. The main objective was to identify the optimal combination of layer thickness and part orientation that would yield the best results in terms of surface roughness and accuracy, considering printing time as a variable. The results from printing time, accuracy and surface roughness measurements showed that the vertical orientation is the superior for cylindrical orientation.

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“…It is important because lots of vehicles are on the roads and fuel consumption / vehicles' global warming impact and drag coefficient of the vehicle are in strong connection (Vučetić et al, 2022). Therefore, low drag coefficient is essential to keep the environmental pollution at a low level, which is studied by several papers (Matijošius et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Turbulence Models and Wall Treatment Methods for Vehicle Aerodynamics Investigations

Péter,

Lakatos

2023

Period. Polytech. Transp. Eng.

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In this paper two different turbulence models and wall treatment methods were investigated with Computational Fluid Dynamics (CFD) method. The used geometry for the research was the Ahmed body. The Ahmed body is a widely used geometry in vehicle aerodynamics investigations. The geometry represents a simplified vehicle, which allows the researchers to make examinations with moderate resources. The simulations were made in Ansys Fluent. The environment of the simulation was built to optimize for maximum 8 GB RAM. The paper examines the difference between the k-ω SST and the k-ε turbulence models in the case of low and high Reynolds number wall treatment methods. This could be useful because the high Reynolds number wall treatment method needs less computational capacity based on that, its required y+ range is between 30 and 300. While in the case of the low Reynolds wall treatment method the required y+ range is below 10, which could increase the cell count. The results from the CFD simulation will be compared to each other and with measured data. The aim of the research is to get information about behaviour of the examined turbulence models in the case of low and high Reynolds number wall treatment methods.

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Real Driving Emission from Vehicle Fuelled by Petrol and Liquefied Petroleum Gas (LPG)

Cited by 3 publications

References 4 publications

A New Vehicle-Specific Power Model for the Estimation of Hybrid Vehicle Emissions

A New Vehicle-Specific Power Model for the Estimation of Hybrid Vehicle Emissions

Investigating the Impact of Productivity on Surface Roughness and Dimensional Accuracy in FDM 3D Printing

Comparison of Different Turbulence Models and Wall Treatment Methods for Vehicle Aerodynamics Investigations

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