Environmental study focused on the suitability of vehicle certifications using the new European driving cycle (NEDC) with regard to the affair “dieselgate” and the risks of NOx emissions in urban destinations

Puškár, Michal; Jahnátek, Andrej; Kádárová, Jaroslava; Šoltésová, Marieta; Kovanič, Ľudovít; Krivosudská, Jana

doi:10.1007/s11869-018-0646-5

Cited by 16 publications

(5 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the majority of scientific papers, comparative studies of power systems are carried out by comparison on the basis of full load engine characteristics and performance [31,32], or in the course of tests in accordance with legislative requirements (NEDC, WLTP and RDE) [33,34]. Some publications include regulatory characteristics with varying degrees of control and different choices of analyzed parameters [35]. However, all these cases do not allow to create guidelines for comprehensive engine evaluation.…”

Section: Resultsmentioning

confidence: 99%

Catalyst Conversion Rates Measurement on Engine Fueled with Compressed Natural Gas (CNG) Using Different Operating Temperatures

Szpica

Dziewiatkowski

2021

mech

View full text Add to dashboard Cite

Further restrictions on the use of compression-ignition engines in transportation are prompting the search for adaptations to run on other fuels. One of the most popular alternative fuels is Compressed Natural Gas (CNG), which due to its low carbon content can be competitive with classical fuels. This paper presents the results of testing a Cummins 6BT compression ignition engine that has undergone numerous modifications to convert to CNG power. The sequential gas injection system and the ignition system were installed in this engine. The compression ratio was also lowered from 16.5 to 11.5 by replacing the pistons. Tests conducted on an engine dynamometer were to show the differences in emission and conversion in the catalyst of hydrocarbons contained in the exhaust gases. Two structurally different catalysts operating at different exhaust temperatures (400 and 500)±2.5°C were used. The catalyst operating at 500±2.5°C showed a 23.5% higher conversion rate than the catalyst operating at a lower temperature in the range of the speed range tested. Also the external indicators, such as power and torque for the case of higher operating temperature took values over 70% higher. The research is one of the stages of a comprehensive assessment of the possibility of adaptation of compression ignition engines to CNG-only fueling.

show abstract

Section: Resultsmentioning

confidence: 99%

Catalyst Conversion Rates Measurement on Engine Fueled with Compressed Natural Gas (CNG) Using Different Operating Temperatures

Szpica

Dziewiatkowski

2021

mech

View full text Add to dashboard Cite

show abstract

“…The medium and high scenario is based on predictions of the low and medium scenario of the development of the number of EVs and charging stations from the source [36]. Calculation of revenues and costs of the charging station and the introduction of some parameters was inspired based on [37,38]. Specifically, the following values were taken: the average annual mileage of the EV owner 13,000 km and the utilization coefficient of the public AC station 20%.…”

Section: Small Battery Storage Strategy From 2nd Life Batteriesmentioning

confidence: 99%

Economic Analysis of Potential Secondary Use of Batteries from Electric Vehicles

et al. 2021

Self Cite

View full text Add to dashboard Cite

This article focuses on the practical use of used batteries from electric vehicles also known as 2nd life batteries. The first part emphasizes lithium batteries, which describes the overall life cycle of the battery, its number of charging cycles and secondary use. This part of the article also focuses on implemented projects of 2nd life batteries from electric vehicles and there is an analysis of the market potential for 2nd life batteries mentioned at the end of the chapter. The second part of this study offers a practical proposition of two possible strategies for using 2nd life batteries. The main source of income in both cases is the provision of regulatory energy. Using the formulas and the function of the calculation model created in the MS Excel software, the appropriate price of the battery for car manufacturers will be calculated and from other possible scenarios of individual strategies will be expressed. The first strategy works with large central battery storage and the second strategy uses small, decentralized battery storage with a fast-charging station.

show abstract

“…For that reason, there have been various studies focused on diesel engines, which combust diesel mixtures. In general, it is possible to say that the application of biodiesel causes an increase in fuel consumption, reduction in HC emissions, CO emissions and particulate matter emissions as well as a moderate higher amount of NO x emissions [2][3][4][5][6]. The influence of unregulated emissions was also investigated by Sharp et al [7] using three diesel engines.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Biodiesel Influence on Unregulated Gaseous Emissions of Diesel Motor Vehicles

et al. 2021

Self Cite

View full text Add to dashboard Cite

This scientific study is focused on the analysis of an influence of the experimental diesel fuel mixtures containing various portions of the biocomponent on the unregulated gaseous emissions generated by a diesel motor vehicle, which is equipped with the diesel engine utilizing the direct fuel injection system “common rail”. The main reason for the choice of this engine type was its wide usage in the current vehicles. The experimental diesel fuel mixtures were created as a mixture of the standard low-sulfur diesel fuel with the biodiesel, using various mixing ratios. The experiments were realized by means of a special 13-regime engine test cycle, which was intentionally developed for the diesel combustion engines. All the individual experiments were performed on the base of the given test cycle with 13 different operational modes. The obtained results offer a complex view on the generation of the unregulated emissions with regard to the operational conditions and taking into consideration operational loading of the given experimental engine.

show abstract

Environmental study focused on the suitability of vehicle certifications using the new European driving cycle (NEDC) with regard to the affair “dieselgate” and the risks of NOx emissions in urban destinations

Cited by 16 publications

References 17 publications

Catalyst Conversion Rates Measurement on Engine Fueled with Compressed Natural Gas (CNG) Using Different Operating Temperatures

Catalyst Conversion Rates Measurement on Engine Fueled with Compressed Natural Gas (CNG) Using Different Operating Temperatures

Economic Analysis of Potential Secondary Use of Batteries from Electric Vehicles

Analysis of Biodiesel Influence on Unregulated Gaseous Emissions of Diesel Motor Vehicles

Contact Info

Product

Resources

About