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Wyświetlanie 1-4 z 4
Tytuł:
Analiza zmian jakości powietrza Małopolski w latach 2012–2020
Analysis of air quality changes in Małopolska in the years 2012–2020
Autorzy:
Rataj, Mateusz
Holewa-Rataj, Jadwiga
Powiązania:
https://bibliotekanauki.pl/articles/1833973.pdf
Data publikacji:
2020
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
smog
ekoprojekt
jakość powietrza
ecodesign
air quality
Opis:
The article focuses on the problem of air pollution, which is referred to as smog, which, according to the WHO, causes the death of 4.2 million people annually. In Europe, the problem of smog particularly affects Poland, according to WHO data, among the 50 most polluted European cities, as many as 33 are in Poland. Out of concern for the health of the residents, Polish law has given local authorities the opportunity to introduce anti-smog resolutions. Anti-smog resolutions focus mainly on reducing dust emissions from the municipal and housing sector, and according to the data of the National Centre for Balancing and Emissions Management, it is responsible for approximately 49% of dust emissions into the atmosphere in Poland. Małopolska also adopted anti-smog resolutions in 2016 (for the city of Kraków) and 2017 (for the remaining area of the voivodeship). Nevertheless, actions under the implementation of air protection programs in Małopolska have been undertaken much earlier. In the years 2013–2018, 43.6 thousand boilers and stoves using solid fuels were decommissioned in Małopolska, including 22.5 thousand in Kraków alone. The article analyzes the changes in air quality in Małopolska in the years 2012–2020. The data analysis focused on five basic pollutants included in smog (i.e. PM10 and PM2.5 dust, nitrogen oxides, sulfur dioxide and carbon monoxide) and the readings of 8 air quality monitoring stations (3 located in the city of Krakow and 5 stations located outside Krakow). The main purpose of the analysis was to show whether the measures taken in Małopolska lead to the improvement of air quality. For this purpose, both changes in daily average and annual average pollutant concentrations recorded by individual measurement stations, as well as changes in the number of days in the heating season in which the limit values were exceeded were analyzed. The analysis of the available measurement data for the years 2012–2020 clearly showed that there are pollutants for which the permissible content in the air is exceeded many times a year throughout the voivodeship. At the same time, in the analyzed period, there are noticeable decreasing trends in the observed concentrations of individual pollutants in the air, which proves that the measures taken in Małopolska to improve air quality are slowly bringing results.
Źródło:
Nafta-Gaz; 2020, 76, 11; 854--863
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of the electric bus radiator design in terms of noise emissions and energy consumption by computational fluid dynamics
Autorzy:
Janicka, Anna
Zawiślak, Maciej
Głogoza, Artur
Włostowski, Radoslaw
Powiązania:
https://bibliotekanauki.pl/articles/2202515.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
automotive engineering
electric bus
CFD
noise
ecodesign
inżynieria samochodowa
autobus elektryczny
hałas
ekoprojekt
Opis:
The paper presents the numerical optimization of an innovative radiator for use in electric buses in terms of energy consumption and noise emission. Computational fluid dynamics simulations were performed. The flow of the cooling medium was modeled using the RANS method. The two-equation k-ɛ turbulence model, the heat transfer model and the acoustic model were used. According to the research results, the separation of the air stream in individual fan sections contributes to the improvement of energy efficiency and reduces noise emissions. As a result of the simulation, it was found that the best solution in terms of noise emission as well as the occurring flow phenomena caused about a 2 dB decrease of maximum values of the noise level and allowed the equalization of the cooling medium velocity (prevailing velocity range between 4 and 9 m/s). The results of the simulations were verified under laboratory and field conditions, showing a very good convergence of the model with the results of the experiments (i.e. the maximum noise level was estimated at 57 dB, under measurement conditions for the same operating point at 59 dB) while maintaining the baseline energy demand, which indicates a new approach in the method of shaping internal elements of electric vehicle coolers.
Źródło:
Combustion Engines; 2022, 61, 4; 41--50
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Produkcja części i podzespołów technicznych środków transportu rolniczego jako osnowa dyskursu o dojrzałości eko-projektowej
Production of technical parts and components of agricultural transport means as the basis of the discourse on design environmental maturity
Autorzy:
Niewiadomski, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/37178069.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Zarządzania Produkcją
Tematy:
ecodesign
design maturity
means of transport
parts
components
designed environmental maturity
ekoprojekt
dojrzałość projektowa
środki transportu
części
komponenty
projektowa dojrzałość środowiskowa
Opis:
The considerations conducted in this work are aimed at identifying the design environmental maturity of enterprises producing parts and components of technical means of agricultural transport. So far, both in Poland and abroad, no comprehensive research (based on a detailed analysis of the problem) has been undertaken on design maturity, defined through the prism of environmental dimensions, in relation to Polish producers of the agricultural machinery sector. In order to fill the existing gap in knowledge, a series of studies was undertaken to identify whether the surveyed enterprises are design-oriented, taking into account, in addition to traditional postulates (economics, society), also environmental postulates reflecting their eco-maturity. Given the empirical evidence confirming the existence of a strong relationship between a company’s market success and sustainable management throughout the product life cycle, the following line of research aggregates them into desirable ones.
Źródło:
Zarządzanie Przedsiębiorstwem; 2023, 26, 1; 19-25
1643-4773
Pojawia się w:
Zarządzanie Przedsiębiorstwem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Direct applications of product life cycle assessment in circular economy
Autorzy:
Baran, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/1927426.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
life cycle assessment
circular economy
environmental footprint
ecodesign
environmental management
ocena cyklu życia
gospodarka o obiegu zamkniętym
ślad środowiskowy
ekoprojekt
zarządzanie środowiskowe
Opis:
Purpose: The purpose of the article is to analyse the possibilities of using life cycle assessment in circular economy. Direct applications of LCA are being considered, including product development and improvement, strategic planning, public policy making and marketing. Design/methodology/approach: Literature research of the subject was carried out. Findings: The possibilities and challenges of applying LCA were indicated. This methodology, in accordance with the provisions of the new circular economy action plan, is becoming increasingly important. Practical implications: A comparison of two or more products in terms of environmental impacts in the life cycle, desired by both companies and customers (in both business-to-business and business-to-client relations), is also difficult to do at the same time. First of all, it requires the use of uniform analytical assumptions. The article contains tips on how to solve this problem. Particular hopes can be associated with the implementation of the environmental footprint being developed by the European Commission. Social implications: The LCA can make a valuable contribution to public policy formulation because it allows policymakers to take into account potential unintended environmental consequences that otherwise cannot be predicted. Originality/value: An analysis of applying LCA was made in relation to the new circular economy action plan (issued in March 2020). Great emphasis was placed on the quantitative approach to the results obtained, which determines the relevance of the article.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2020, 148; 55-75
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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