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    Wyświetlanie 1-11 z 11
    Tytuł:
    Compressor application for extending production life cycle in mature fields
    Autorzy:
    Stefanescu, D. P.
    Maulidani, O. A.
    Audrey, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/298948.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    mature fields
    gas compression
    production life cycle
    Opis:
    Mature gas fields are subject to network backpressure fluctuation causing liquid loading condition. The liquid loading, theoretically, occurs when the gas velocity is below its critical velocity which commonly happens in mature fields when rates become “low”. Based on Turner or Coleman’s equations, the critical velocity is proportional to the wellhead flowing pressure. This means, when the wellhead pressure increases as the result of higher external (sales) pressure, then the critical velocity will be higher. This condition will give a “pseudo” production decline of the wells. Gas compression is among the best fit-for-purpose solution to overcome the above challenges. Gas compression will help to reduce the wellhead flowing pressure which increases the gas velocity above the critical velocity as well as the well gas rate by lowering the bottomhole flowing pressure. The wells will be capable of unloading the liquid inside the wellbore and the reservoir will suffer a higher pressure drawdown. Moreover, the wells will not be impacted by the external pressure fluctuation as long as this latter is below the compressor discharge pressure. Gas compression has been implemented in Laslau Mare mature gas field to extend the production life cycle. 5 wellhead compressors have been installed since 2010 and 1 group compressor since 2014. Both types of compressor show positive results. This paper explains the application of compressor in Laslau Mare field starting with candidate selection up to cash flow analysis. A big emphasis will be given to the compressor/ well performance.
    Źródło:
    AGH Drilling, Oil, Gas; 2016, 33, 2; 495-506
    2299-4157
    2300-7052
    Pojawia się w:
    AGH Drilling, Oil, Gas
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    LCA as a tool for assessing product and process oriented eco-innovations undertaken by enterprises
    Autorzy:
    Rybaczewska-Błażejowska, M.
    Sulerz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/406742.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    innovation
    eco-innovation
    life cycle assessment (LCA)
    food production
    Opis:
    This paper examines the application of life cycle assessment (LCA) as an approach to foster the product and process oriented eco- innovation of enterprises, using the fruit and vegetable processing plant as an example. LCA, which is traditionally used to assess the impacts of a single product system on the environment, was applied in the enterprise context. This was made possible by forming an indicator describing the environmental profile of an enterprise, which is calculated by the sum of the multiplication of the environmental impact assessment (LCIA) results for individual unit processes within a particular impact category and their weights reflecting the structure of production in an enterprise. In order to distinguish and indicate the direction in which an enterprise should undertake its eco-innovative actions (implementing eco-innovations within the product or production process) the LCIA results are presented individually for products and production processes. The research was conducted in full compliance with the LCA methodology. LCA proved that the analysed enterprise has the largest negative impacts on the environment in the following impact categories: marine eco-toxicity, freshwater eco-toxicity, freshwater eutrophication, human toxicity and natural land transformation. They result primarily from the consumption of thermal and electric energy in the production processes. Therefore, to improve energy efficiency, the enterprise should take eco-innovative actions in the processes applied.
    Źródło:
    Management and Production Engineering Review; 2017, 8, 3; 60-69
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Life cycle assessment of fertilizers: a review
    Autorzy:
    Skowronska, M.
    Filipek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/24121.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    life cycle
    assessment
    fertilizer
    environment
    plant material
    raw material
    agricultural production
    Opis:
    Life cycle assessment has become an increasingly common approach for identifying, quantifying, and evaluating the total potential environmental impact of production processes or products, from the procurement of raw materials (the ‘cradle’), to production and utilization (the ‘gates’) and their final storage (the ‘grave’), as well as for determining ways to repair damage to the environment. The paper describes life cycle assessment of mineral fertilizers. On the basis of results provided by life cycle assessment, it can be concluded that an effective strategy for protecting the environment against the harmful effects of fertilizers is to attempt to ‘seal’ the nutrient cycle on a global, regional, and local scale. Pro-environ- mental measures aim on the one hand to reduce resource utilization, and on the other hand to limit losses of nutrients, during both production and use of fertilizers. An undoubted challenge for life cycle assessment when used in agricultural production is the need for relevance at each scale.
    Źródło:
    International Agrophysics; 2014, 28, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Legacy of Fordism and Product Life Cycle Management in the Modern Economy
    Autorzy:
    Bednarek, Mariusz
    Parkes, Aneta
    Powiązania:
    https://bibliotekanauki.pl/articles/1841435.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Fordism
    Post-Fordism
    Neo-Fordism
    mass production
    mass waste
    Product Life Cycle Management
    Opis:
    The industrial revolution taking place since the 18th century has brought the global economies to the stage of mass production, mass industrialization and spreading ideas connected with its efficiency. The most famous of its kind is Fordism and its modern variations called PostFordism or Neo-Fordism. We can still see traditional way of producing things in some parts of the world, and the leading economies are using Ford’s ideas or the modifications of the Ford’s concepts. But there is a question about the place of these models in the modern economy, especially because mass-production causes mass-waste and modern societies has woken up to the reality of the global pollution, climate change or just the simple fact that the amount of the raw materials is limited. The social mood is slowly changing so there should be a change to the way we produce and consume things as well. There is a question: can we proceed within existing models or should we think outside the box so we can invent more suitable way of looking at efficiency and effectiveness. The objective of this paper is to contribute to the discussion about the future of how are we going to produce things. It is based on the literature review considering Fordism and its variations, Product Life Cycle facing issues like pollution, massive waste and changes in modern economy, as well as on the case study of implementing waste reduction activities in the product’ design phase in the industrial plant based in one of the EU countries – Poland.
    Źródło:
    Management and Production Engineering Review; 2021, 12, 1; 61-71
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Life cycle assessment of Crambe abyssinica production for an integrated multi-product biorefinery
    Autorzy:
    Krzyżaniak, M.
    Stolarski, M.
    Śnieg, M.
    Christou, M.
    Alexopoulou, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/363260.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    Crambe abyssinica
    life cycle assessment (LCA)
    production
    spring rape
    produkcja
    cykl życia
    rzepak jary
    Opis:
    For decades, energy and chemical industry markets have been dominated by resources acquired from fossil fuels. The resources are steadily shrinking and access to them is becoming increasingly difficult. Therefore, alternative methods of producing fuels or chemicals from renewable sources are being sought. The crambe (Crambe abyssinica) is an oil plant with a high content of erucic acid, regarded as a feedstock for integrated biorefineries. Production of fuels or chemicals from biomass should be conducted in a sustainable way. Therefore, the aim of the study was to use the life cycle assessment method to determine the impact on the environment of the production of crambe compared to spring rape. The results showed that spring rape affected the environment more strongly in 9 out of 10 impact categories by the CML 2000 baseline method, considering the impact per 1ha. The cultivation of crambe with (Crambe II) and without herbicides (Crambe I) had the greatest impact in the category of terrestrial ecotoxicity. When an impact per 1kg of seeds was considered, it was noted that spring rape had a greater effect only in 1 out of 10 effect categories – human toxicity. The differences were associated with a much lower yield of crambe obtained in the experiment compared to spring rape. In conclusion, the environmental impact of the “weak links” in the crambe production, mineral fertilisation and a low yield, should be minimised.
    Źródło:
    Environmental Biotechnology; 2013, 9, 2; 72-80
    1734-4964
    Pojawia się w:
    Environmental Biotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The application of the FMEA method in the selected production process of a company
    Autorzy:
    Barosz, P.
    Dudek-Burlikowska, M.
    Roszak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/111598.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    quality management
    production process
    quality life cycle
    FMEA method
    quality improvement
    zarządzanie jakością
    proces produkcji
    metoda FMEA
    polepszanie jakości
    Opis:
    The aim of this article is to show the use of the analysis of the failure causes and effects as a prevention tool in controlling the quality of a given production process in the company. The scope of the work covers an analysis of a selected process, definition of inconsistencies present in this process, and then the FMEA analysis. In the production company one should implement thinking and actions based on the so-called ‘quality loop’ – it is an interdependence model of the undertaken actions which affect the quality shaping. It is carried out from the possibility for identifying a customer’s requirements through a project, production process, up to the assessment of effective capability for meeting the defined requirements. The application of such an approach enables to take the actions improving the operation of quality management in a systemic way.
    Źródło:
    Production Engineering Archives; 2018, 18; 35-41
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ecological effects of use biogas to supply the internal combustion engine in the electricity generation process – results of LCA analysis
    Autorzy:
    Chłopek, Z.
    Samson-Bręk, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/133428.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    life cycle cost (LCC)
    LCA
    biogas
    waste
    combustion
    electricity production
    koszt cyklu życia
    biogaz
    odpady
    spalanie
    produkcja energii elektrycznej
    Opis:
    Environmental life cycle assessment (LCA) in Poland is still a relatively new method of estimating the environmental impact of production processes. It enables the assessment of the environmental risks associated with the product system or activity, either through the identification and quantification of materials and energy used and waste introduced into the environment, as well as assess their impact on the environment. LCA method application also enables the calculation of greenhouse gas emissions in accordance with Directive 2009/28/EC on the promotion of energy from renewable sources. This paper presents the results of the simplified life cycle analysis of electricity production process from agricultural biogas used as an engine fuel. LCA analysis was conducted based on data from one of the national biogas plants. The selection criterion was based on the availability of substrates (maize silage, distillery slop and sugar beet pulp) and the possibility of obtaining high quality data for analysis (actual data based on the existing biogas plant). In addition, the environmental impact of the biogas power generation technology obtained through the methane fermentation process only of waste materials (distillery slop, sugar beet pulp) and coprocessing of waste and maize silage was compared.
    Źródło:
    Combustion Engines; 2017, 56, 4; 134-139
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Environmental assessment of the production process of internal combustion engines
    Autorzy:
    Mrozik, M.
    Danilecki, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/134189.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    car
    combustion engine
    life cycle assessment (LCA)
    LCA
    eco-design
    production
    samochód
    silnik spalinowy
    ocena cyklu istnienia
    projektowanie ekologiczne
    produkcja
    Opis:
    The aim of this article is to demonstrate using the LCA methodology the environmental effects of material composition changes on Volkswagen Golf passenger cars over the past 30 years. The simplified LCA model of the engine presented in the work shows the energy consumption and total CO2 emissions based on the mass of materials. It was built to investigate general assumptions about material production and car recycling. The results of the research presented in the paper give an image of the modernity of a passenger car engine on the basis of consumption and the degree of recovery of materials used for its construction.
    Źródło:
    Combustion Engines; 2017, 56, 4; 117-120
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potential environmental life cycle impacts of fuel cell electric vehicles powered by hydrogen produced from Polish coke oven gas
    Autorzy:
    Folęga, Piotr
    Burchart, Dorota
    Marzec, Paweł
    Jursova, Simona
    Pustejovska, Pavlina
    Powiązania:
    https://bibliotekanauki.pl/articles/2098086.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    life cycle assessment
    fuel cell electric vehicles
    hydrogen production
    coke oven gas
    ocena cyklu życia
    pojazd elektryczny z ogniwami paliwowymi
    produkcja wodoru
    gaz koksowniczy
    Opis:
    This study analysed the greenhouse gas (GHG) emissions of hydrogen fuel cell vehicles’(FCEVs’) life cycles. These included models running on hydrogen derived from coke oven gas (COG), which is a by-product of the coking process of coal and includes hydrogen, methane, and other gases. FCEVs and hydrogen have the potential to drive future mobility. Hydrogen can be separated from the COG in the process of pressure swing adsorption to obtain a purity of hydrogen that meets the requirements of a hydrogen FCEV. An environmental life cycle assessment (LCA) of FCEV powered by hydrogen produced from Polish COG was conducted. The direction of hydrogen production strategies in Poland was also presented. The analyses included the entire life cycle of FCEVs with the production of hydrogen from COG in a Polish coke plant. A comparative analysis of FCEVs and other alternative fuels was conducted, and the main determinants of GHG emissions of FCEV were given. Importantly, this is the first attempt at an environmental assessment of FCEVs in Poland.
    Źródło:
    Transport Problems; 2021, 16, 1; 151--161
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Energy Consumption in the Production Chain of Heat from Pellet
    Autorzy:
    Marczak, Halina
    Powiązania:
    https://bibliotekanauki.pl/articles/103185.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    pellet heat production
    pellet life cycle
    energy consumption
    energy efficiency
    energy expenditure
    energy benefits
    produkcja ciepła z peletu
    cykl życia peletu
    zużycie energii
    efektywność energetyczna
    wydatek energetyczny
    korzyści energetyczne
    Opis:
    Wood pellets, as a renewable energy source, are an alternative to fossil fuels. Their use contributes to the quantitative protection of the traditional energy resources which are non-renewable and single use. The combustion of pellets has a neutral effect on increasing the concentration of carbon dioxide in the atmosphere. An important environmental aspect of the Life Cycle Assessment of pellets is the energy consumption over its life cycle. The results of this assessment can be helpful in improving the environmental management in the companies related to the pellet life cycle. They can also be used in the comparative assessment of pellets and other energy carriers in terms of the environmental load resulting from the energy consumption over the entire life cycle of the analyzed fuels. The work aimed at analyzing and assessing the energy efficiency of using wood pellet taking into account its life cycle. In order to achieve the purpose of the work, the energy efficiency index, calculated as the quotient of energy benefits and energy expenditure incurred at individual stages of the pellet life cycle, was used. The results of the analysis indicate that among the studied stages of the pellet life cycle, the highest energy consumption occurs in the pellet use and production phases. Research shows that the energy benefits expressed in the amount of energy emitted in the form of heat in the pellet combustion process outweigh the energy expenditure being the sum of energy spent in subsequent stages of the pellet life cycle. The obtained results indicate a positive energy balance. The use of pellets for heating purposes allows for the recovery of energy spent throughout its entire life cycle.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 2; 206-214
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Environmental performance of kettle production: product life cycle assessment
    Efektywność środowiskowa produkcji czajników: ocena cyklu życia produktu
    Autorzy:
    Marcinkowski, A.
    Zych, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/409869.pdf
    Data publikacji:
    2017
    Wydawca:
    STE GROUP
    Tematy:
    comparative analysis
    eco-efficiency
    environmental management
    environmental performance
    life cycle assessment (LCA)
    production
    water boiling process
    ocena cyklu życia LCA
    produkcja
    ekoefektywność
    efektywność środowiskowa
    zarządzanie środowiskowe
    proces gotowania wody
    analiza porównawcza
    Opis:
    The main objective of this paper is to compare the environmental impact caused by two different types of water boiling processes. The aim was achieved thanks to product life cycle assessment (LCA) conducted for stovetop and electric kettles. A literature review was carried out. A research model was worked out on the basis of data available in literature as well as additional experiments. In order to have a better opportunity to compare LCA results with reviewed literature, eco-indicator 99 assessment method was chosen. The functional unit included production, usage and waste disposal of each product (according to from cradle to grave approach) where the main function is boiling 3360 l of water during 4-year period of time. A very detailed life cycle inventory was carried out. The mass of components was determined with accuracy of three decimal places (0.001 g). The majority of environmental impact is caused by electricity or natural gas consumption during usage stage: 92% in case of the electric and kettle and 99% in case of stovetop one. Assembly stage contributed in 7% and 0.8% respectively. Uncertainty and sensitivity analyses took into consideration various waste scenario patterns as well as demand for transport. Environmental impact turned out to be strongly sensitive to a chosen pattern of energy delivery (electricity mix) which determined final comparison results. Basing on LCA results, some improvements of products were suggested. The boiling time optimization was pointed out for electric kettle's efficiency improvement. Obtained results can be used by manufacturers in order to improve their eco-effectiveness. Moreover, conclusions following the research part can influence the future choices of home appliances users.
    Głównym celem niniejszego artykułu jest porównanie wpływu na środowisko wywieranego przez dwa różne typy procesu gotowania wody. Cel ten został osiągnięty przez zastosowanie oceny cyklu życia produktu dla czajnika tradycyjnego i elektrycznego. Dokonano przeglądu literatury. Zastosowany model badawczy opracowano na podstawie danych dostępnych w literaturze oraz dodatkowych badań eksperymentalnych. Aby zapewnić możliwość pełniejszego porównania uzyskanych wyników LCA z wynikami literaturowymi, zastosowano metodę oceny ecoindicator 99. Przyjęta jednostka funkcyjna zawiera fazę produkcji, eksploatacji i utylizacji (zgodnie z podejściem „od kołyski do grobu”), gdzie główną funkcją jest zagotowanie 3360 l wody w ciągu czteroletniego okresu czasu. Dokonano bardzo szczegółowej inwentaryzacji LCI. Masa komponentów została wyznaczona z dokładnością do trzeciego miejsca po przecinku (0,001 g). Uzyskane wyniki pokazują, że wpływ na środowisko został zdominowany przez zużycie energii elektrycznej lub gazu ziemnego podczas fazy eksploatacji produktów: 92% w przypadku czajnika elektrycznego i 99% w przypadku tradycyjnego. Udział fazy produkcji wyniósł odpowiednio 7% i 0,8%. Wykonane analizy niepewności i wrażliwości uwzględniały różne modele scenariusza odpadowego, jak również skalę zapotrzebowania na transport. Wpływ na środowisko okazał się być silnie wrażliwy na wybrany koszyk energii elektrycznej (electricity mix), który zdeterminował wyniki ostatecznego porównania czajników. Opierając się na uzyskanych wynikach oceny cyklu życia zaproponowano pewne udoskonalenia produktów. Optymalizacja czasu gotowania została wskazana jako czynnik zwiększający efektywność czajnika. Uzyskane wyniki mogą być wykorzystane przez producentów w celu poprawy ich efektywności środowiskowej. Ponadto, wyciągnięte wnioski mogą mieć wpływ na przyszłe wybory użytkowników urządzeń gospodarstwa domowego.
    Źródło:
    Management Systems in Production Engineering; 2017, 4 (25); 255-261
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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