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    Wyświetlanie 1-13 z 13
    Tytuł:
    Process engineering in iron production
    Autorzy:
    Pustejovska, P.
    Jursova, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/184940.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    heat balance
    kinetic model
    carbon consumption
    reducibility
    bilans cieplny
    model kinetyczny
    zużycie węgla
    redukowalność
    Opis:
    Balance, thermodynamic and mainly kinetic approaches using methods of process engineering enable to determine conditions under which iron technology can actually work in limiting technological states, at the lowest reachable fuel consumption (reducing factor) and the highest reachable productivity accordingly. Kinetic simulation can be also used for variant prognostic calculations. The paper deals with thermodynamics and kinetics of iron making process. It presents a kinetic model of iron oxide reduction in a low temperature area. In the experimental part it deals with testing of iron ore feedstock properties. The theoretical and practical limits determined by heat conditions, feedstock reducibility and kinetics of processes are calculated.
    Źródło:
    Chemical and Process Engineering; 2013, 34, 1; 63-76
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methods of reduction of fuel consumption as means for CO2 emitted by seagoing ships minimising
    Autorzy:
    Giernalczyk, M.
    Górski, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/242362.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    greenhouse gas
    carbon dioxide
    fuel consumption
    waste head utilisation
    Opis:
    The subject of paper is to focus the problem of carbon dioxide emission from seagoing ships. The paper presents analysis of possibilities of fuel consumption minimizing and this way reduction of carbon dioxide emission from seagoing ships. However, The VI Amendment to MARPOL Convention concerning prevention against air pollution by seagoing ships did not take into consideration carbon dioxide emission, the importance of this problem was perceived by international organizations among others by IMO. As a result corrections in VI Amendment to MARPOL Convention were introduced thus forcing reduction of CO2 emission by seagoing ships. Among means reducing emission of carbon dioxide into atmosphere the following are mentioned: construction modifications of new built ships i.e. reduction of ship speed, optimization of main engine and propeller selection, optimization of ship hull shape, application of resistance reducing hull coatings, use of alternative (ecological) fuels and utilization of propulsion plant waste heat. In turn, for ships already in operation methods for fuel consumption and carbon dioxide reduction can be individual for each ship full monitoring of main engine operational parameters and measurement of waste heat utilization rate. According to opinion of paper authors, the minimizing of carbon dioxide reduction can be mainly achieved by utilisation of exhaust gases heat for electric power production in steam turbo alternators running in one- or two stage steam pressure systems. The analysis executed in the paper of one- and two stage steam system advantages shows that one stage steam system is more economically profitable in practice application.
    Źródło:
    Journal of KONES; 2013, 20, 4; 85-91
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis concerning possibilities of reduction of toxic substances and co2 emission by use of dual fuel diesel engines for seagoing ships main propulsion
    Autorzy:
    Giernalczyk, M.
    Górski, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/244704.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    toxic substances
    carbon dioxide
    fuel consumption
    dual fuel engines
    natural gas
    Opis:
    The goal of the paper is to focus the problem of emission of toxic compounds e.g. NOx, SOx and CO2 from seagoing ships to environment. The VI Amendment to Marpol Convention concerning prevention against air pollution by seagoing ships brought into practice in May 19th 2005 forced ship owners to use means for reduction of environment harmful substances emission to atmosphere. Considerable reduction of these harmful substances can be use dual fuel diesel engines for ship propulsion. Dual fuel engines are fuelled by natural gas having methane as main component. Leading producers of marine diesel engines introduced into production diesel engines DF (Dual Fuel) type. These engines can be fuelled alternatively with natural gas or with heavy fuel oil and marine diesel oil. Today the propulsion by diesel engines fuelled with natural gas is the most popular on ships carrying natural gas cargo i.e. LNG carriers (Liquefied Natural Gas Carriers). Natural gas is freight in liquid form under atmospheric pressure in temperature -163 °C. Due to heat penetration into cargo tanks, the liquefied gas evaporates. Evaporated cargo BOF (Boil Off Gas) is used as a fuel in ship diesel engines. However, dual fuel engines are used on other types of ships not only on LNG carriers. A number of seagoing ships fuelled with natural gas are now under construction. For example container ship 9,000 TEU in Japan shipyard Kawasaki Heavy Industries or container ship 14,000 TEU in Korean shipyard Daewoo Shipbuilding & Marine Engineering for company CMA-CGM. Ships fuelled with natural gas e.g. modern ferries are also built by Stocznia Remontowa Shipbuilding in Poland for Norwegian owner. Adaptation of presently operated ships for fuelling with natural gas is also considered.
    Źródło:
    Journal of KONES; 2014, 21, 2; 77-82
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The way to limit emission - energy efficient buildings. The example of the largest facility in Poland in nearly Zero Energy Building standard
    Autorzy:
    Figiel, Ewa
    Leciej-Pirczewska, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/962361.pdf
    Data publikacji:
    2020
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    carbon dioxide impact
    nearly zero-energy building
    energy consumption
    renewable energy
    Opis:
    In Szczecin a mixed-use complex Posejdon is being constructed. It will be the first nearly zero-energy building (NZEB) in Poland that meets the strict ecological standards that all buildings will have to meet after January 2021. The project was presented at the COP24 United Nations Climate Change Conference in Katowice. The calculated building CO2 emission is very low. Based on the example of the Posejdon complex’s office-service section before and after renovation modern technical solutions for meeting the buildings energy demand and the resulting reduction of CO2 emission have been presented. The emissions were obtained after the calculation of energy use in accordance with Polish and European regulations concerning the energy performance of buildings using climatic conditions taken from a Polish meteorological database. The described renewable energy technologies implemented in the Posejdon building, serve as a reference to export management and design strategies to other NZEB with similar characteristics in the same region.
    Źródło:
    Scientific Review Engineering and Environmental Sciences; 2020, 29, 1; 81-92
    1732-9353
    Pojawia się w:
    Scientific Review Engineering and Environmental Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Interstitial community oxygen consumption in a Baltic sandy beach: horizontal zonation
    Autorzy:
    Urban-Malinga, B.
    Opalinski, K.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/47737.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    interstitial community
    sediment water
    carbon requirement
    sandy beach
    oxygen consumption
    Baltic Sea
    Opis:
    The oxygen consumption of a sandy beach interstitial community was determined on four occasions (January, May, August, October) on the Gulf of Gdańsk (southern Baltic Sea). The study was carried out at four locations on the beach slope (littoral, waterline, splash zone and middle beach). Oxygen consumption varied from 158–159 cm3 O2 m−2 h−1 at the underwater site and waterline to 20–36 cm3 O2 m−2 h−1 in the middle beach. According to these data, interstitial organisms are able to utilize from 206 to 1641 mg of organic carbon per square metre per day. In general, metabolic activity decreased gradually from the waterline towards the middle beach, and a significant correlation was found between oxygen consumption and sediment water content. Changes in oxygen consumption on the beach slope were statistically significant.
    Źródło:
    Oceanologia; 2001, 43, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation and Factor Decomposition of Carbon Emissions in China’s Tourism Sector
    Szacowanie poziomu emisji i czynników rozkładu dwutlenku węgla w chińskim sektorze turystycznym
    Autorzy:
    Chen, Jiandong
    Zhao, Aifeng
    Zhao, Qiuping
    Song, Malin
    Baležentis, Tomas
    Streimikiene, Dalia
    Powiązania:
    https://bibliotekanauki.pl/articles/371280.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Komitet Człowiek i Środowisko PAN
    Tematy:
    energy consumption
    carbon emission
    tourism economy
    konsumpcja energii
    emisje węgla
    ekonomia turystyczna
    Opis:
    Based on data from 2000-2015, this study estimated the carbon emissions of China’s tourism-related traffic, accommodation, and tourism activities. To quantify the factors governing tourism carbon emissions, this study employed the logarithmic mean Divisia index (LMDI). Furthermore, simultaneous equations models were applied to determine the impact of tourism volume, economic growth, and technological progress on tourism-related carbon emissions. The results showed that carbon emissions are continuously increasing, with tourism-related traffic being the main contributor to total carbon emissions in the tourism sector and private cars being the major source of traffic-related carbon emissions. LMDI and simultaneous equations analysis revealed that tourism volume was the main driving force behind the increase in tourism-related carbon emissions, whereas energy intensity and structure effects were less significant factors influencing the growth rate of carbon emissions in China’s tourism sector.
    Na podstawie danych z lat 2000-2015 w tym artykule oszacowane emisje węglowe związane z turystyką: ruch drogowy, zakwaterowanie i aktywność turystyczną. Aby określić ilościowo czynniki odpowiedzialne za związane z turystyką emisje węglowe użyto logarytmiczny Divisia index (LMDI). Następnie zastosowano modele symultanicznych równań, aby określić wpływ poziomu ruchu turystycznego, wzrost ekonomiczny i postęp techniczny na związane z turystyką emisje węglowe. Otrzymane rezultaty pokazuję, że poziom emisji węglowych nieustannie się zwiększa, przy czym głównym czynnikiem jest turystyczny ruch samochodowy, w szczególności samochodów prywatnych. LMDI i symultaniczne równania potwierdziły, że poziom ruchu turystycznego był głównym motorem odpowiedzialnym za wzrost związanych z turystyką emisji węglowych, natomiast energochłonność i czynniki strukturalne odgrywają mniejszą rolę we wzroście emisji węgla z chińskiej turystyki.
    Źródło:
    Problemy Ekorozwoju; 2018, 13, 2; 91-101
    1895-6912
    Pojawia się w:
    Problemy Ekorozwoju
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Paths to low-carbon development in China: The role of government environmental target constraints
    Autorzy:
    Bai, Tingting
    Xu, Dong
    Yang, Qianyi
    Dudás Piroska, Vargáné
    Dénes Dávid, Lóránt
    Zhu, Kai
    Powiązania:
    https://bibliotekanauki.pl/articles/39830406.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Badań Gospodarczych
    Tematy:
    government environmental target constraints
    carbon emissions
    energy consumption
    industrial structure optimization
    green technology innovation
    Opis:
    Research background: To achieve the targets for carbon peak and air quality improvement, local governments should propose environmental targets and develop realization paths that are tailored to their unique local conditions. They then promote low-carbon development through the implementation of multiple measures. Purpose of the article: As the government performance appraisal system im-proves, the question arises as to whether governments take the initiative to com-bine environmental policies with government target constraints to reduce carbon emissions. Methods: The announcement of environmental target constraints by local governments in government work reports is considered a quasi-natural experiment. This study examines the effect of government environmental target constraints (GETC) on carbon emissions (CEs) using differences-in-differences (DID), propensity score matching-DID (PSM-DID), and spatial-DID (SDID) with data from 241 Chinese cities from 2003 to 2019. Findings & value added: The results demonstrate that GETC can effectively reduce local CEs, with the inhibitory effect being most effective in the first two years after setting environmental targets, but diminishing in the third year. GETC can reduce local CEs through three paths: reducing energy consumption, promoting industrial structure optimization, and encouraging green technology innovation. Spatial spillover effects show that GETC reduces local CEs while exacerbating CEs in neighboring cities, indicating a beggar-thy-neighbor effect in conventional environmental regulation policy. This effect is observed mainly in the geographic matrix and the economic-geographic matrix, but not in the economic matrix. According to heterogeneity analysis, GETC in the eastern and central cities can significantly reduce CEs. The inhibitory effect of GETC on local CEs is stronger in cities where secretaries and mayors have longer tenures and higher levels of education. The paper's theoretical value lies in exploring the reduction of CEs through the combination of government self-restraint and environmental policies, providing a new solution for local governments to achieve CEs reduction. Furthermore, it offers practical insights into the improvement of the Chinese government assessment system.
    Źródło:
    Oeconomia Copernicana; 2023, 14, 4; 1139-1173
    2083-1277
    Pojawia się w:
    Oeconomia Copernicana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical analysis of the effect of traction parameters on electric vehicle energy consumption and driving range
    Analiza teoretyczna wplywu parametrow trakcyjnych na zuzycie energii i zasieg pojazdu elektrycznego
    Autorzy:
    Golebiewski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/792024.pdf
    Data publikacji:
    2016
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    traction parameter
    electrical vehicle
    driving range
    energy consumption
    motor vehicle
    carbon dioxide emission
    theoretical analysis
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2016, 16, 1
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Carbon emissions, energy use, gross domestic product and total population in China
    Autorzy:
    Ahmad, M.
    Hengyi, H.
    Rahman, Z. U.
    Khan, Z. U.
    Khan, S.
    Khan, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/96260.pdf
    Data publikacji:
    2018
    Wydawca:
    Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
    Tematy:
    energy consumption
    carbon emission
    GDP
    Granger causality
    ARDL
    EKC
    zużycie energii
    emisja dwutlenku węgla
    PKB
    przyczynowość w sensie Grangera
    Opis:
    The current study explores the impact of energy consumption, total population, gross domestic product on carbon emissions by utilizing time series data of 1971-2013 for China. Earlier studies concentrated on testing the present form of an environmental Kuznets curve not taking total population in a model. Specifically, this study focuses on analyzing the long run existence of environmental Kuznets curve. The methodology of auto regressive distributed lag model is utilized. The quadratic linkage between national income and emissions of carbon have been detected, confirming the presence of long run linkage between quadratic national income and emissions of carbon. Granger causality test divulge one-way causality between gross domestic product and carbon emissions. The empirical findings also reveal that the energy use and national income are important factors of carbon emanations in the long run. Total population has an insignificant positive influence on emissions of carbon. It is suggested that government should focus to extract that substitute sources of energy which is more environmental friendly.
    Źródło:
    Ekonomia i Środowisko; 2018, 2; 32-44
    0867-8898
    Pojawia się w:
    Ekonomia i Środowisko
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecological and economic benefits and safety of the use of coal gas in industry
    Autorzy:
    Pustějovská, Pavlína
    Byrtus, Vojtěch
    Jursová, Simona
    Kardas, Edyta
    Powiązania:
    https://bibliotekanauki.pl/articles/88633.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    degassing gas
    carbon gas
    consumption of coke
    blast furnace
    economic benefits
    gaz odgazowujący
    gaz węglowy
    konsumpcja koksu
    wielki piec
    korzyści ekonomiczne
    Opis:
    Possibilities Of Use Of Degassing And Carbon Gas In Industry. Degassing Gas Represents A Waste During Coal Mining So Far And This Issue Is Not Effectively Solved In Ostrava Region Up Till Now Ecological Aspects, Safety, Economic Aspects. Coal Deposits Represent A Special Case In Which The Deposit Is Both A Source Of Coal And Reservoir Of Gas. For The Thing Is That, In The Process Of Coalification Of Plant Residue, Coal Bed Gas Came Into Being Of Which The Main Component Is Methane. Gas From Mining Degassing Can Be Used As A Substitute Fuel For The Blowing Of Blast Furnaces. This Would Not Only Make It Possible To Reduce The Specific Consumption Of Coke, But Also Contribute To A Better Blast Furnace. An Economic Effect Is Also Negligible If We Characterize Degassing Gas As Waste Gas.
    Źródło:
    System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 378-383
    2657-5450
    Pojawia się w:
    System Safety : Human - Technical Facility - Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of harvest of energetic basket willow
    Ocena plonowania wierzby energetycznej
    Autorzy:
    Sobczyk, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/793515.pdf
    Data publikacji:
    2011
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    alternative energy
    energetic plant
    willow
    Salix viminalis
    energetic willow
    harvest
    willow plantation
    energy consumption
    alternative source
    carbon dioxide emission
    conventional energy source
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Energy consumption and carbon footprint of an electric vehicle and a vehicle with an internal combustion engine
    Autorzy:
    Muha, R.
    Perosa, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/374029.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    electric vehicle
    vehicle with an internal combustion engine
    carbon footprint
    energy consumption
    pojazd elektryczny
    pojazd z silnikiem spalinowym
    ślad węglowy
    zużycie energii
    Opis:
    The use of electrically powered vehicles is becoming more and more established in practice and represents a promising solution in future ensuring quality mobility and reducing the pollution in the environment. Since these vehicles are high-priced, and there is still a low awareness among consumers in terms of energy consumption and pollution, vehicles with an internal combustion engine remain the norm. For this purpose, the study, here, provides an energy consumption estimate of an electric vehicle and thus its carbon footprint and compares it to the energy consumption and carbon footprint of a vehicle with an internal combustion engine. The results of this study reveal the orientation for the use of electric vehicles in future, in terms of raising awareness among the individual manufacturers, consumers and, last but not the least, the society as a whole, which is committed to sustainable developmental orientations.
    Źródło:
    Transport Problems; 2018, 13, 2; 49-58
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of intake canal geometry on kinematics of load in combustion chamber
    Wplyw geometrii kanalu dolotowego na kinematyke ruchu ladunku w przestrzeni roboczej silnika tlokowego
    Autorzy:
    Piatkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/793234.pdf
    Data publikacji:
    2011
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    supply system
    engine
    modern engine
    combustion chamber
    intake canal geometry
    spark ignition
    fume emission
    toxic gas
    hydrocarbon
    carbon monoxide
    nitric oxide
    sulphur oxide
    fuel consumption
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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