scholarly journals Advantages and Disadvantages of Using Methane from CNG in Motor Vehicles in Polish Conditions

2018 ◽  
Vol 1 (1) ◽  
pp. 241-247 ◽  
Author(s):  
Adam Górniak ◽  
Katarzyna Midor ◽  
Jan Kaźmierczak ◽  
Wojciech Kaniak
Keyword(s):  
Air Pollution ◽  
Nitrogen Oxides ◽  
Road Transport ◽  
Solid Particles ◽  
Motor Vehicles ◽  
Advantages And Disadvantages

Abstract The current problems related to air pollution in Europe, but also in Poland, are forcing the search for solutions aimed at significantly reducing the amount of solid particles harmful to humans in the air. Road transport is responsible for almost half of the pollution, as it releases nitrogen oxides into the air. In view of the above, the authors of the article want to turn attention toward methane as a fuel alternative traditional ones, pointing to the possibility of its use by Poland and presenting its advantages and disadvantages.

scholarly journals Environmental Assessment of Motorcycle using a Life-Cycle Perspective

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Bertha Maya Sopha ◽  
Setiowati Setiowati ◽  
Sholeh Ma’mun
Keyword(s):  
Air Pollution ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Secondary Data ◽  
Resource Depletion ◽  
Road Transport ◽  
Motor Vehicles ◽  
Transportation Sector ◽  
Life Cycle Perspective ◽  
Function Unit

Transportation sector contributes as the second largest polluter of the air pollution in Indonesia. Of the transportation sector, road transport has generated 70% of the air pollution, 81% of which is attributable to motorcycles. The motorcycles are currently accounting for 79% of the total motor vehicles. It is predicted that the number of motorcycles will continue to grow at an annual rate of 9-26%. However, due to little attention to the motorcycle’s environmental impacts, this present study, therefore, aims to assess and report the environmental impacts of using motorcycles based on life-cycle perspective. Using a functional unit of one passenger per kilometer (pkm), resource consumption and emissions through the entire life-cycle of a motorcycle were estimated. The foreground Life Cycle Inventory (LCI) was compiled through observation, interview, and secondary data, while the background LCI was based on ecoinvent data v.2.0. Results show that the environmental impacts of the chosen function unit constitute Abiotic Resource Depletion Potential (ADP) of 0.515 g Sb-eq., Global Warming Potential (GWP) of 176 g CO2-eq, Human Toxicity Potential (HTP) of 1.1 g 1.4-DCB-eq, and Acidification Potential (AP) of 0.544 g SO2-eq, respectively. Operation (usage stage) of the motorcycle has been the most contributor to GWP and AP, while manufacturing stage has been the most contributor to HTP. Potential interventions related to the manufacturing process, fuel, and usage of the motorcycle to reduce the environmental impacts are also discussed.

scholarly journals On the issue of reducing the negative impact of nitrogen oxides in the system recirculation of diesel exhaust gases on applying the vortex effect

2020 ◽  
Vol 221 ◽  
pp. 02006
Author(s):  
Irina Belinskaia ◽  
Rahim Zainetdinov ◽  
Konstantin Evdokimov
Keyword(s):  
Nitrogen Oxides ◽  
Internal Combustion Engines ◽  
Negative Impact ◽  
Exhaust System ◽  
Internal Combustion ◽  
Solid Particles ◽  
Combustion Engines ◽  
Exhaust Gases ◽  
Advantages And Disadvantages ◽  
Vortex Effect

The problem of negative impact on the environment of motor transport is one of the most fundamental in the complex of global problems. The constant increase in the number of cars with internal combustion engines encourages the search for methods and ways to reduce the volume of negative impulses. The operation of heat engines is accompanied by significant emissions of gaseous harmful substances into the atmosphere, i.e. nitrogen oxides, carbon monoxide, hydrocarbons, as well as solid particles, including soot. The solution to this problem should be implemented within the framework of a systematic approach. To do this, it is necessary to combine the study of technical, economic, and organizational approaches to the organization of the exhaust gas disposal process. To date, there is a significant methodological base in the field of organizational and economic decisions. The article discusses various methods of cleaning exhaust gases of piston engines, their advantages and disadvantages are noted. The method of processing using ammonia is widely known. It is noted that a catalytic method for reducing nitrogen oxides using ammonia is quite economical. However, the optimal temperature range at which nitrogen oxides are reduced is rather narrow. To solve this problem, it is proposed to use the vortex effect in the exhaust system. The efficiency of using a vortex gas recirculation pipe is due to its significant influence on the thermal gasdynamic processes occurring in the exhaust system. Using the principles of non-equilibrium thermodynamics allows us to take into account dissipative processes when establishing the relationship of fuel and economic indicators of internal combustion engines with thermodynamic parameters. This significantly increases the accuracy of calculations and allows you to develop measures to reduce the level of negative impact on the environment.

scholarly journals Toxicity of Exhaust Fumes (CO, NOx) of the Compression-Ignition (Diesel) Engine with the Use of Simulation

2019 ◽  
Vol 11 (8) ◽  
pp. 2188 ◽  
Author(s):  
Karol Tucki ◽  
Remigiusz Mruk ◽  
Olga Orynycz ◽  
Katarzyna Botwińska ◽  
Arkadiusz Gola ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Diesel Engine ◽  
Nitrogen Oxides ◽  
Carbon Dioxide Emissions ◽  
Methyl Esters ◽  
Exhaust Emissions ◽  
Solid Particles ◽  
Motor Vehicles ◽  
Engine Operation ◽  
Limit Value

Nowadays more and more emphasis is placed on the protection of the natural environment. Scientists notice that global warming is associated with an increase of carbon dioxide emissions, which results inter alia from the combustion of gasoline, oil, and coal. To reduce the problem of pollution from transport, the EU is introducing increasingly stringent emission standards which should correspond to sustainable conditions of the environment during the operation of motor vehicles. The emissivity value of substances, such as nitrogen oxides (NOx), hydrocarbons (HC), carbon monoxide (CO), as well as solid particles, was determined. The aim of this paper was to examine, by means of simulation in the Scilab program, the exhaust emissions generated by the 1.3 MultiJet Fiat Panda diesel engine, and in particular, carbon monoxide and nitrogen oxides (verified on the basis of laboratory tests). The Fiat Panda passenger car was selected for the test. The fuels supplied to the tested engine were diesel and FAME (fatty acid methyl esters). The Scilab program, which simulated the diesel engine operation, was the tool for analyzing the exhaust toxicity test. The combustion of biodiesel does not necessarily mean a smaller amount of exhaust emissions, as could be concluded on the basis of information contained in the subject literature. The obtained results were compared with the currently valid EURO-6 standard, for which the limit value for CO is 0.5 g/km, and for NOx − 0.08 g/km, and it can be seen that the emission of carbon monoxide did not exceed the standards in any case examined. Unfortunately, when analyzing the total emissions of nitrogen oxides, the situation was completely the opposite and the emissions were exceeded by 20–30%.

scholarly journals Analysis of the impact of road transport emissions into the atmosphere on the example of Russia

2021 ◽  
Vol 284 ◽  
pp. 06011
Author(s):  
Diana Lotnikova ◽  
Vladimir Nagorny
Keyword(s):  
Air Pollution ◽  
Premature Mortality ◽  
Road Transport ◽  
Health Impact ◽  
Motor Vehicles ◽  
Economic Damage ◽  
Low Carbon ◽  
Carbon Regulation ◽  
Premature Deaths ◽  
The Impact

Emissions of pollutants into the atmosphere in Russian cities in 2000-2020 from stationary sources decreased slightly, but emissions from mobile sources increased. Premature mortality from chemical air pollution alone is estimated, at 40-80 thousand people per year. The increase in air pollution by motor vehicles, due to the growth of road transport and the fleet of cars. There is no significant transition to environmentally friendly transport. The health impact of high levels of urban population, premature deaths per year, and economic damage of over 8% of GDP. There is an increase in air pollution by motor vehicles, due to the growth of road transport and the fleet of cars. In recent years, the global energy markets have seen a decline in the growth of demand for hydrocarbons. This is largely due to the long-term trend towards decarbonization, which involves the introduction of energy-efficient technologies, the spread of the price of carbon, and the accelerated development of low-carbon and carbon-free energy sources. To reduce the risks of carbon regulation, as well as to realize new opportunities, it is necessary to create an effective national strategy for low-carbon development of Russia and an effective system of carbon regulation.

A Survey of Nitrogen-Oxides Control Technology and the Development of a Low NOx Emissions Combustor

1971 ◽  
Vol 93 (3) ◽  
pp. 293-299 ◽  
Author(s):  
J. P. Tomany ◽  
R. R. Koppang ◽  
H. L. Burge
Keyword(s):  
Air Pollution ◽  
Los Angeles ◽  
Nitrogen Oxides ◽  
Pollution Control ◽  
The United States ◽  
Motor Vehicles ◽  
Nox Emissions ◽  
Air Pollution Control ◽  
Stationary Combustion ◽  
Combustion Sources

The problem of NOx emissions reduction is gaining increased attention from those concerned with air pollution control activities. HEW proposes to issue criteria for the control of nitrogen oxides within the year. The Los Angeles Air Pollution Control District (LAAPCD) has already published regulations which limit emissions from combustion sources to a fixed rate of 140 lb/hr NOx. This is equivalent to an allowable emission concentration of about 20 ppm for a 500 MW power station. Two of the major contributors to oxides of nitrogen air pollution in the United States are Industrial Processes and Stationary Combustion Sources, both being responsible for over 50 percent of the total NOx emissions. Motor vehicles contribute the remainder for a total of 20 million tons per year. Although some advances have been made in the development of commercial control equipment for Industrial Process emissions, there is very little well-developed technology available for NOx emissions control from Stationary Combustion Sources. Two of the most promising areas being investigated are: • Stoichiometric variations of the air-fuel feed and partial recycling of the combustion products. • Advanced design of combustion equipment. The former system of control, in a test program with 17 commercial boilers, has been responsible for the reduction of NOx emissions from about 350–150 ppm. An advanced design combustor, operated at a heat release level of 105 Btu/hr, has produced NOx emission values of about 150 ppm. When coupled with simulated combustion gas recycle, the emissions were further reduced to 100 ppm. Although both the “stoichiometric” and “combustor” approach to the problem of NOx emissions represent a good beginning, greater efforts must be expended on these and other promising control techniques in preparation for future regulations.

scholarly journals The Effects of Motor Vehicle Emissions on the Environment

2018 ◽  
Author(s):  
Osman Simav ◽  
Banu Dokuzeylül ◽  
Mehmet Erman Or
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Nitrogen Oxides ◽  
Motor Vehicle ◽  
Combustion Engine ◽  
Catalytic Converter ◽  
Plant Cover ◽  
Motor Vehicles ◽  
Otto Cycle ◽  
Living Things

The pollutants emitted in the surroundings of motor vehicle exhausts vary according to the type of engine cycle, the use of fuel and the use of catalytic converters. Harmful compounds emitted from internal combustion engine exhaust (IYM) exhausts; HC Hydro Carbon, CO Carbon Monoxide, NOx Nitrogen Oxides and Particulate substances. Without the Catalytic Converter, the pollutant value of a motor vehicle operating with the Otto cycle and using gasoline is the highest. Diesel Motor Vehicles, which work with the Diesel cycle later, are the cleanest of these vehicles, which use the Otto cycle and use LPG. It is estimated that more than half of the polluters that lead to air pollution in large cities come from exhausts of motor vehicles. HC Hydrocarbons cause cancers in living things, CO poisoning carbon monoxide living things, causing deaths in case of excessive respiration. NOx Nitrogen Oxides disrupt the balance of nature as acid rain. CO2, which is thought to cause less damage, causes greenhouse effect in the atmosphere, causing the climate to change and the average temperature to increase. This study is to examine the effects of air pollution caused by exhaust gases on domestic pets, plant cover and water and other environment in the city.

Convective Мodel of Еmission Distribution on the Road Overpass Under Neutral Weather Conditions.

2018 ◽  
pp. 23-31
Author(s):  
Rostyslav Sipakov ◽  
Olena Voloshkina ◽  
Volodimir Trofimovich ◽  
Irina Klimova
Keyword(s):  
Air Pollution ◽  
Urban Areas ◽  
Weather Conditions ◽  
Road Transport ◽  
Euler Method ◽  
Motor Vehicles ◽  
Hydrocarbon Emissions ◽  
Atmospheric Air ◽  
The Road ◽  
On The Road

An analysis of the degree of atmospheric air pollution in urban areas showed its dependence on a growing number of personal vehicles operating on traditional fuels. This work proves the possibility of applying the theory of a convective jet for estimating and forecasting atmospheric air pollution in megacities, depending on weather conditions and the number of cars that are simultaneously in traffic jams in a car overpass. We use the integral Euler method to calculate the parameters of a convective jet. The conditions for the appearance of neutral ways are determined and based on the considered main ways of distribution of emissions in the atmosphere. The method for calculating the amount of hydrocarbon emissions from road transport was used to determine the secondary pollution by formaldehyde of atmospheric air into the territories of megalopolises as a result of photochemical transformations. The presented studies allow to single out the share of greenhouse gas emissions from road transport in the context of total emissions in a megacity. A method for calculation of concentrations of pollution from motor vehicles based on this model has been developed. This method allows the use of specially synthesized external influences with the subsequent processing of the results of observations and subsequent analysis of the consequences. The effectiveness of the proposed mathematical model can be increased in combination with the use of "green structures". This method is suitable for finding optimal management decisions at the municipal level and the formation of the environmental policy of the city.

scholarly journals Evaluation of the Possibility of Using Methane from CNG by Potential Motor Vehicle Users

2019 ◽  
Vol 1 (1) ◽  
pp. 583-589
Author(s):  
Adam Górniak ◽  
Katarzyna Midor ◽  
Kaźmierczak Jan
Keyword(s):  
Air Pollution ◽  
European Union ◽  
Motor Vehicle ◽  
Road Transport ◽  
The European Union ◽  
Ecological Value ◽  
Car Use ◽  
Advantages And Disadvantages ◽  
Polish Government

Abstract Today’s world is facing the necessity of reducing air pollution. One of the alternatives is to limit pollution related to road transport by using CNG fuel. The European Union is imposing increasingly strict requirements regarding the cleanness of car fumes, and the Polish government is endeavouring to take actions aimed at reducing the pollution related to car use by planning the development of transport electromobility. In this article, the authors want to draw attention to methane as an alternative to traditional fuels. The article presents the results of a survey conducted among drivers, which regarded their readiness to use CNG-powered cars. The results indicate that while respondents appreciate the ecological value of this fuel, they are also worried about safety, which is contradicted by the analysis of CNG advantages and disadvantages.

scholarly journals Assessment of Environmental Risks of Particulate Matter Emissions from Road Transport Based on the Emission Inventory

2021 ◽  
Vol 11 (13) ◽  
pp. 6123
Author(s):  
Katarzyna Bebkiewicz ◽  
Zdzisław Chłopek ◽  
Hubert Sar ◽  
Krystian Szczepański ◽  
Magdalena Zimakowska-Laskowska
Keyword(s):  
Particulate Matter ◽  
Legal Status ◽  
Monitoring And Evaluation ◽  
Road Transport ◽  
Solid Particles ◽  
Pollutant Emissions ◽  
European Economic Area ◽  
Engine Exhaust ◽  
Exhaust Gases ◽  
Particulate Matter Emissions

The aim of this study is to investigate the environmental hazards posed by solid particles resulting from road transport. To achieve this, a methodology used to inventory pollutant emissions was used in accordance with the recommendations of the EMEP/EEA (European Monitoring and Evaluation Programme/European Economic Area). This paper classifies particulates derived from road transport with reference to their properties and sources of origin. The legal status of environmental protection against particulate matter is presented. The emissions of particulate matter with different properties from different road transport sources is examined based on the results of Poland’s inventory of pollutant emissions in the year 2018. This study was performed using areas with characteristic traffic conditions: inside and outside cities, as well as on highways and expressways. The effects of vehicles were classified according to Euro emissions standards into the categories relating to the emissions of different particulate matter types. The results obtained showed that technological progress in the automobile sector has largely contributed to a reduction in particulate matter emissions associated with engine exhaust gases, and that this has had slight effect on particulate matter emissions associated with the tribological processes of vehicles. The conclusion formed is that it is advisable to undertake work towards the control and reduction of road transport particulate matter emissions associated with the sources other than engine exhaust gases.

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