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Wyszukujesz frazę "Szymlet, Natalia" wg kryterium: Autor

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Determining if Exhaust Emission From Light Duty Vehicle During Acceleration on The Basis of On-Road Measurements and Simulations
    Autorzy:
    Nowak, Mateusz
    Kamińska, Michalina
    Szymlet, Natalia
    Powiązania:
    https://bibliotekanauki.pl/articles/2027939.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    air pollution
    real driving emissions
    PEMS
    simulation
    CO₂ emission
    Opis:
    Vehicle exhaust emissions depend on multiple factors, such as the emission norm, driving parameters (speed, acceleration) or the technical condition of the vehicle. These driving parameters may often depend on the condition of the road infrastructure and other factors influencing road conditions. The article attempted to assess the emissivity during acceleration of a vehicle powered by a compression ignition engine. Mapping the actual values is possible with the use of exhaust emission measurement equipment that operates under the actual operating conditions of a vehicle. Recently, an increase in the use of simulation methods in research of this type has been observed. The authors decided to check the suitability of using road traffic simulation software to estimate the $CO_2$ emissions during vehicle acceleration. The obtained results are promising, because in terms of the emissions of the analyzed exhaust gas component, the simulation results differed from the results obtained during measurements with the use of Portable Emissions Measurement System (PEMS) equipment by less than ±20%.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 10; 63-72
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of Toxicity Indexes in Reference to Carbon Dioxide for a Vehicle Equipped with a Two-Stroke Engine without an Exhaust Aftertreatment System
    Autorzy:
    Rymaniak, Łukasz
    Ziętara, Bartosz
    Szymlet, Natalia
    Kołodziejek, Daniel
    Powiązania:
    https://bibliotekanauki.pl/articles/24201656.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    moped
    PEMS
    portable emission measurement system
    toxicity index
    exhaust emission
    real driving conditions
    Opis:
    Research work on the new assessment of environmental indicators using equipment from the PEMS group (Portable Emission Measurement Systems) with motor vehicles is being developed. Due to the miniaturization of equipment, there are new measurement possibilities for more and more numerous groups of vehicles, including two-wheelers. The article presents the research and a summary of the results of a moped equipped with a two-stroke engine, approved in accordance with the Euro 3 standard. The research object is mainly used for driving in urban traffic. Therefore, the research route was created as the first communication frame in the Poznań agglomeration. In the analysis of the results, the author’s M toxicity index was proposed, which is based on the assumption that CO2 emission is a measure of the correctness of the combustion process. The equipment from the PEMS-AxionR/S+ group, characterized by small dimensions and low weight, was used to determine the actual motion parameters and the emission of toxic compounds. In the analysis of the measurement results, dimensionless indicators of toxicity M of gaseous compounds were determined and a comparative analysis was made with the values of other objects obtained in the course of previous research (motorcycle, passenger car, off-road vehicle, hybrid bus and agricultural tractor). Due to the engine design (two-stroke type), the worst environmental indicators were obtained for CO and HC compared to other tested vehicles.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 4; 228--236
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of emission indicators related to CO2 emissions in the ecological assessment of an agricultural tractor
    Autorzy:
    Rymaniak, Łukasz
    Merkisz, Jerzy
    Szymlet, Natalia
    Kamińska, Michalina
    Weymann, Sylwester
    Powiązania:
    https://bibliotekanauki.pl/articles/2038051.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    agricultural machinery
    emission of CO2
    emission indicators
    PEMS
    RDE
    Opis:
    The paper presents the proposed proprietary M exhaust emission indicator, which is based on the assumption that CO2 emissions are a measure of the correctness of the combustion process. The measurements were performed using a farm tractor meeting the Tier 3 emission norm, operated in real conditions during plowing work. The tests were carried out for a given land section at three speeds In the analysis of test results, the net engine work was used, as it is carried out in the type approval procedures. When measuring in real operating conditions, the torque read from the OBD system is overstated because it takes into account the engine’s internal resistance. In the analysis of test results, the fuel consumption, emission indicators of gaseous compounds and particulates were determined, and the best conditions for conducting agricultural works were indicated in terms of their impact on the natural environment. The aim of the work is to verify the possibility of determining the emission index for an off-road vehicle and a comparative analysis of its values for various operating parameters of a farm tractor. On this basis, it was found that the lowest values of the M identity were recorded for the test characterized by a vehicle speed of 15 km/h.
    Źródło:
    Eksploatacja i Niezawodność; 2021, 23, 4; 605-611
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of toxicity indicators related to CO2 emissions in the ecological assessment of an two-wheel vehicle
    Autorzy:
    Szymlet, Natalia
    Kamińska, Michalina
    Lijewski, Piotr
    Rymaniak, Łukasz
    Tutak, Przemysław
    Powiązania:
    https://bibliotekanauki.pl/articles/2097581.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    motorcycles
    toxicity indicators
    laboratory conditions
    WMTC test
    PEMS
    motocykle
    wskaźniki toksyczności
    warunki laboratoryjne
    test WMTC
    Opis:
    The subject of the article is proposed proprietary M toxicity indicator, which is based on the assumption that CO2 emissions are a measure of the correctness of the combustion process. For this purpose, gaseous exhaust compounds such as hydrocarbons, nitrogen oxides, carbon monoxide and carbon dioxide were measured and analyzed. The test object was a motorcycle, equipped with an gasoline engine with a displacement of 0.7 dm3 and a maximum power of 55 kW. The tests were carried out using the PEMS (Portable Emissions Measurement System) AxionR/S+. The exhaust emissions measurement was done in line with the WMTC (World Motorcycles Test Cycle) certification test, dedicated to vehicles in this category. The test consists of three parts, each of them lasts 600 s and has a different maximum speed value. The test was performed on a single-roller chassis dynamometer, designed for testing two-wheeled vehicles. The toxicity indicators and rotation speed results were presented as a function of time.
    Źródło:
    Combustion Engines; 2021, 60, 4; 36--41
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurement of rail vehicles exhaust emissions
    Autorzy:
    Kamińska, Michalina
    Kołodziejek, Daniel
    Szymlet, Natalia
    Fuć, Paweł
    Grzeszczyk, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/2097647.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    exhaust emission
    rail vehicles
    real driving emissions
    RDE
    portable emission measurement system
    PEMS
    non-road mobile machinery
    NRMM
    emisja spalin
    pojazdy szynowe
    rzeczywista emisja cząstek
    przenośne systemy pomiaru emisji
    pozadrogowe maszyny ruchome
    Opis:
    The basic problem in terms of measuring exhaust emissions is the approval tests of traction vehicles, which are carried out on engine dynamometers. Therefore, it is impossible to obtain reliable results concerning their actual impact on the natural environment. It is therefore advisable to carry out the tests in real operation conditions, as is the case for road vehicles for which RDE (Real Driving Emissions) tests are carried out. The latest Stage V emission standards push for the introduction of this type of test, but no limit values for toxic exhaust gases have been established and no test guidelines have been defined for assessing actual emissions. This article describes the issues related to the legislative guidelines for non-road vehicles in force in Europe, as well as the measurement tools used, such as mobile equipment for measuring emissions of PEMS (Portable Emissions Measurement Systems) and newly developed emission gates. Additionally, the paper presents examples of locomotive exhaust emission tests in real operating conditions. The aim of the measurements was to assess the emission of toxic compounds against the relevant standards. The subject of the research was a diesel locomotive type T448.P equipped with a modernized internal combustion engine.
    Źródło:
    Combustion Engines; 2022, 61, 2; 10--17
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Research Method, Results and Regulations Regarding the Exhaust Emissions from Two-Wheeled Vehicles under Actual Operating Conditions
    Autorzy:
    Szymlet, Natalia
    Lijewski, Piotr
    Sokolnicka, Barbara
    Siedlecki, Maciej
    Domowicz, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/124348.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    air pollution
    two-wheeled vehicles
    exhaust emission
    RDE methodology
    PEMS
    Opis:
    The subject of this article was the analysis of the current state of legislation regarding the exhaust emissions from two-wheeled vehicles. The regulations and emission limits were analyzed and compared for different areas of the world. Moreover, the review of the legal provisions includes an individual approach to specific categories of two-wheeled vehicles. The study also describes the research and exhaust emission measurement methods from mopeds and motorcycles both under laboratory conditions and in actual operation. The methods were evaluated in the aspect of future emission requirements and trends. In addition, the results of emissivity measurements under actual operating conditions obtained in the Poznań agglomeration with the use of motorcycle units were discussed and analyzed. The values of road emissions of all toxic compounds limited by legislators were compared with emission standards.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 1; 128-139
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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