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Wyszukujesz frazę "Kalina" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    On a environmentally friendly supply of energy
    Autorzy:
    Horbaj, P.
    Braunmiller, G.
    Taus, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/175532.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    geothermal energy
    ORC
    Kalina power plant
    Opis:
    In the paper a concept of enviromental compatible energy supply is discussed. A many aspects, theoretical comparison of organic Rankine cycle (ORC) and the Kalina process has been presented. The first cycle (ORC) deals low boiling point working fluid in power plants. The second cycle uses different mixtures of the circulated medium.
    Źródło:
    Transactions of the Institute of Fluid-Flow Machinery; 2014, 126; 221-230
    0079-3205
    Pojawia się w:
    Transactions of the Institute of Fluid-Flow Machinery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phenolics composition and antioxidant capacity of guelder rose fruit, flower and bark extracts
    Autorzy:
    Polka, Dominika
    Podsędek, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/410508.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
    Tematy:
    Guelder rose
    fruits
    flowers
    bark
    phenolic compounds
    antioxidant capacity
    kalina koralowa
    owoce
    kwiaty
    kora
    związki fenolowe
    zdolność antyoksydacyjna
    Opis:
    Different parts of plants, including fruits, leaves, roots, bark, stem and flower, are a promising source of bioactive compounds, therefore they are intensively studied for biological activity and the possibility of use in functional foods and dietary supplements. The present research compares the phenolic profile and antioxidant capacity of aqueous extracts obtained from bark, flowers and fruits of guelder rose. Antioxidant activity was evaluated against ABTS, hydroxyl and peroxyl free radicals, and as a reducing power by using in vitro test. The total phenolics, flavanols and proanthocyanidins were assessed by spectrophotometric methods, and individual phenolic compounds were also determined using UPLC analysis. Bark water extract proved to be richest in natural antioxidants because it showed the highest antioxidant potential, regardless of the method used. Its very high antioxidant capacity was connected with high phenolic compounds content, especially flavanols and proanthocyanidins. Water extracts of guelder rose fruits and flowers were characterized by the high level of hydroxycinnamic acids, especially chlorogenic acid. It seems that guelder rose bark may be selected as potential source of phytochemicals with high antioxidant potential.
    Źródło:
    Biotechnology and Food Science; 2019, 83, 1; 37-47
    2084-0136
    2299-6818
    Pojawia się w:
    Biotechnology and Food Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Energy analysis of municipal waste in Dubrovnik
    Autorzy:
    Król, P.
    Krajačić, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/105778.pdf
    Data publikacji:
    2018
    Wydawca:
    Centrum Badań i Innowacji Pro-Akademia
    Tematy:
    gospodarka odpadami
    obieg Kaliny
    obieg Barytona
    fermentacja metanowa
    biogaz
    waste management
    Kalina cycle
    Brayton cycle
    anaerobic digestion
    biogas
    asimptote cycle-tempo
    Opis:
    In each touristic city waste management system has to overcome the impact of visitors. Dubrovnik, famous as popular touristic destination, particularly notices tourists visiting city. Therefore potential impact of waste management in touristic cities, such as Dubrovnik, is presented. The paper includes estimation of yearly waste production by inhabitants and tourists visiting those city. Waste digestion is a method for biogas production. On the basis of the preceding estimation combined-cycle installation generating heat and electricity is proposed. The model combines Brayton cycle with low temperature Kalina model based on Rankine cycle. Literature analysis presents state of the art in this field. The simulation is prepared in Cycle-Tempo. Numerical analyses lead to technical issues, which have to be taken into consideration during waste utilization with such installation. Thus benefits and threats are discussed. The presented analysis assesses the maximal electric gain, which subsequently should consider waste preparation and purification.
    Źródło:
    Acta Innovations; 2018, 28; 40-48
    2300-5599
    Pojawia się w:
    Acta Innovations
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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