Evaluation of the CO2 emission from motor vehicles in the context of sustainable transport development

2021 ◽  
Author(s):  
Piotr Wiśniowski ◽  
Anna Borucka ◽  
Maciej Menes ◽  
Andrzej Świderski

Greenhouse gases emission is an important element in the development of the automotive industry. The unceasing trend of reducing the negative impact of vehicles on the environment is a determinant of setting directions for the improvement of their production and operation. One of the solutions in this regard are low-emission vehicles. However, this area requires continuous research and analyses, the results of which are partially presented in this article. The aim of the study was to evaluate the CO2 emission from the selected types of vehicles as in traffic driving, measured based on the standardised type-approval tests. This method allows to easily reproduce the obtained results, reliably compare and also extend it with further tests in a completely independent manner. The CO2 emission in the production process of the vehicle and its fuel, was also evaluated. It was assumed (research hypothesis) that CO2 emission changes significantly with the development of production technology and the use of various vehicle power sources. Based on their own research, the authors also analysed the feasibility/reliability of the assumptions about the benefits associated with emissions, obtained by replacing the classic vehicle with the hydrogen one. They estimated the time and intensity of using a hydrogen-powered vehicle that guarantees a benefit in terms of CO2 emissions compared to a conventional vehicle.

Author(s):  
V.N. Kurdyukov ◽  
◽  
T.V. Lebedeva ◽  

The article considers common classifications of measures to reduce environmentaleconomic damage from motor vehicles. Classification from the point of view of control impact is proposed, which allows to take into account relations between the state and citizens in the field of reduction of negative impact of motor vehicles on the environment. The analysis of the classification made it possible to identify areas of activity for improving the efficiency of management impacts, taking into account the incentives of citizens to comply with the requirements of the legislation and to create conditions for their exceeding. Increasing the efficiency of resource allocation in the Territory will allow the released funds to be allocated to the development of industry, agriculture, education and science.


Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 130
Author(s):  
Mihail Busu ◽  
Alexandra Catalina Nedelcu

In the past decades, carbon dioxide (CO2) emissions have become an important issue for many researchers and policy makers. The focus of scientists and experts in the area is mainly on lowering the CO2 emission levels. In this article, panel data is analyzed with an econometric model, to estimate the impact of renewable energy, biofuels, bioenergy efficiency, population, and urbanization level on CO2 emissions in European Union (EU) countries. Our results underline the fact that urbanization level has a negative impact on increasing CO2 emissions, while biofuels, bioenergy production, and renewable energy consumption have positive and direct impacts on reducing CO2 emissions. Moreover, population growth and urbanization level are negatively correlated with CO2 emission levels. The authors’ findings suggest that the public policies at the national level must encourage the consumption of renewable energy and biofuels in the EU, while population and urbanization level should come along with more restrictions on CO2 emissions.


2019 ◽  
Vol 7 (7) ◽  
pp. 230 ◽  
Author(s):  
Gilltae Roh ◽  
Hansung Kim ◽  
Hyeonmin Jeon ◽  
Kyoungkuk Yoon

The need for technological development to reduce the impact of air pollution caused by ships has been strongly emphasized by many authorities, including the International Maritime Organization (IMO). This has encouraged research to develop an electric propulsion system using hydrogen fuel with the aim of reducing emissions from ships. This paper describes the test bed we constructed to compare our electric propulsion system with existing power sources. Our system uses hybrid power and a diesel engine generator with a combined capacity of 180 kW. To utilize scale-down methodology, the linear interpolation method is applied. The proposed hybrid power source consists of a molten carbonate fuel cell (MCFC), a battery, and a diesel generator, the capacities of which are 100 kW, 30 Kw, and 50 kW, respectively. The experiments we conducted on the test bed were based on the outcome of an analysis of the electrical power consumed in each operating mode considering different types of merchant ships employed in practice. The output, fuel consumption, and CO2 emission reduction rates of the hybrid and conventional power sources were compared based on the load scenarios created for each type of ship. The CO2 emissions of the hybrid system was compared with the case of the diesel generator alone operation for each load scenario, with an average of 70%~74%. This analysis confirmed the effectiveness of using a ship with a fuel-cell-based hybrid power source.


Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7868
Author(s):  
Honorata Howaniec ◽  
Łukasz Krzysztof Wróblewski ◽  
Hana Štverková

Environmental policy obliges modern society to transition to a low-carbon economy. After entering to life, the Paris Agreement obligated the signatories to prepare the first nationally determined contributions (NDCs). The NDCs aim first to reduce greenhouse gas emission targets under the UNFCCC and they apply equally to both developed and developing countries. Countries voluntarily indicate what actions will be taken to achieve the declared goals. The construction sector is an industry that is under scrutiny due to its negative impact on the environment, but it also has the potential to reduce it. Activities that can reduce greenhouse gas emissions can be carried out at various levels in the construction industry. One of them is the appropriate preparation of the staff, including equipping them with the so-called green skills. This research aimed to determine the competency gaps of people employed in the construction industry, including competencies in the field of low-emission economy. For the purposes of the study, a questionnaire survey was carried out in Poland and the Czech Republic and based on the results obtained the appropriate competencies were determined that should be possessed by people employed in the construction sector, including competencies related to a low-emission economy. Competency profiles for people employed in the construction sector were built and competency gaps of these people were determined. In both countries, no competencies have been identified in any of checked areas that meet or exceed the requirements of managers according to specific competency profiles.


2021 ◽  
pp. 18-27
Author(s):  
Dmitriy Vadimovich Zavyalov ◽  
Nadezhda Borisovna Zavyalova ◽  
Olga Vitalievna Saginova

The article presents an analysis of the impact of urban transport on the environmental situation in the metropolis. A variant of the database modification based on the results of monitoring of the level of pollution of the atmosphere, soil mantle and water surface is proposed. Data integration will allow assessing the effectiveness of the measures applied in the city to reduce the negative impact of urban transport and make operational management decisions.


2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Brian Yuliarto ◽  
Gilang Gumilar ◽  
Ni Luh Wulan Septiani

A significant amount of pollutants is produced from factories and motor vehicles in the form of gas. Their negative impact on the environment is well known; therefore detection with effective gas sensors is important as part of pollution prevention efforts. Gas sensors use a metal oxide semiconductor, specifically SnO2nanostructures. This semiconductor is interesting and worthy of further investigation because of its many uses, for example, as lithium battery electrode, energy storage, catalyst, and transistor, and has potential as a gas sensor. In addition, there has to be a discussion of the use of SnO2as a pollutant gas sensor especially for waste products such as CO, CO2, SO2, and NOx. In this paper, the development of the fabrication of SnO2nanostructures synthesis will be described as it relates to the performances as pollutant gas sensors. In addition, the functionalization of SnO2as a gas sensor is extensively discussed with respect to the theory of gas adsorption, the surface features of SnO2, the band gap theory, and electron transfer.


2021 ◽  
Vol 9 ◽  
Author(s):  
Zhuang Zhang ◽  
You-Hua Chen ◽  
Chien-Ming Wang

The influence of low-carbon energy on economic development is a vital issue. Using the provincial panel data in China from 2000 to 2017, this work investigated the aggregate effects of low-emission electricity. The results showed that 1) when the ratio of low-emission electricity to total electricity increases by 1%, the GDP per capita will increase by 0.16% and CO2 emissions will decrease by 0.848%. In other words, low-emission electricity can achieve the goal of low-carbon economic development; 2) the self-supply of low-emission electricity, rather than trade and efficiency, is the main reason for China’s boosted economic growth; and 3) low-emission electricity increases the regional economic gap in China. The effects of pollution inhibition and economic promotion on low-emission electricity in developed areas are significantly greater than those in less developed areas. Thus, the low-emission electricity policy in China should benefit the economy and avoid the excessive economic gap among regions. Policymakers should vigorously promote the low-emission electricity revolution and pay attention to the inclination of energy policy to the central and western regions.


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