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    Wyświetlanie 1-4 z 4
    Tytuł:
    The Influence of Modern Refrigerants on Environmental Protection
    Autorzy:
    Czapp, Marian
    Orłowska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/2069895.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    refrigerant
    protection
    environment
    GWP
    ODP
    Opis:
    The aim of reviewing information was characterizing in the labor factor using in refrigeration technology is and their impact on the environment. The development of the refrigeration industry occurred thanks to progress towards coolants. The most important aspect of using of refrigerators is their impact on health and human life, and atmosphere. By caring for health, the European Union achieves legal rights. Research on thermodynamic factors pose a wide field of work for many scientists and are the most popular, new information, that can be used in practice.
    Źródło:
    Rocznik Ochrona Środowiska; 2021, 23; 569--579
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Irreversibility analysis of R407A and R407C as alternatives of R22 in window type air conditioner
    Autorzy:
    Al-Nadawi, Ayad Khudhair
    Powiązania:
    https://bibliotekanauki.pl/articles/240806.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    R407C
    R407A
    ODP
    window type air conditioner
    irreversibility analysis
    Opis:
    Irreversibility analysis was investigated by using refrigerants R22, R407A, and R407C in window type air conditioner system. The experimental study was conducted at various ambient temperatures and air volumetric flow rates to determine the parameters that cause the energy degradation of the system. The irreversibility was compared with respect to volumetric flow rates of the air passing through evaporator (14.15, 12.74, and 10.618 m3 /min) and different ambient temperatures (ranging from 28°C to 39°C dry bulb. Results show that the total irreversibility increases with refrigerant mass flow rate and ambient temperature for the three refrigerants. Additionally, R22 shows the highest irreversibility in low ambient temperature (28°C to 30°C) while R407A shows the lowest one with ambient temperature ranging from 30°C to 36°C. Both tested refrigerants are very good replacement for R22 in terms of irreversibility and energy analysis and these results are more remarkable with R407A.
    Źródło:
    Archives of Thermodynamics; 2019, 40, 4; 129-150
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Possibilities and restrictions of heavy-mineral analysis for the reconstruction of sedimentary environments and source areas
    Autorzy:
    Derkachev, A.N.
    Nikolaeva, N. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/94357.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    heavy-mineral assemblages
    sedimentary environments
    ODP cores
    Mesozoic folded belts
    złoża ciężkich minerałów
    środowiska sedymentacyjne
    Opis:
    The possible reconstruction of ancient sedimentary environments on the basis of heavy-minerals assemblages is presented by means of discriminant lithogeodynamic diagrams that compare modern and ancient sedimentary environments. This is exemplified by Mesozoic-Cenozoic deposits recovered from ODP cores obtained from the Philippine and Japan Seas, the Japan Trench and the North Atlantic, as well as by deposits from folded areas onshore. On the basis of the comparative analysis, it can be deduced that the main tendencies in mineral assemblages of modern deposits that depend on the structural-tectonic conditions, are fairly well preserved in Cenozoic deposits (including the deposits recovered by ODP drilling). On the other hand, the environmental reconstruction of folded and faulted pre-Cenozoic continental areas on the basis of their heavy-mineral assemblages, by comparing them with supposed modern analogs, is not always possible with much certainty. The main reasons may be either a considerable change in the composition of the initial (primary) mineral assemblages as a result of intralayer solution or the absence, at the time of deposition, of geodynamic environments that closely resembled modern ones.
    Źródło:
    Geologos; 2013, 19, No. 1-2; 147-158
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessing the applicability of new refrigerants in marine cooling systems
    Autorzy:
    Zakrzewski, B.
    Łokietek, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/259543.pdf
    Data publikacji:
    2010
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    TEWI
    ODP
    GWP
    heat pump
    air conditioning
    cooling installations
    refrigerant
    R22 substitute
    energetic efficiency
    R41
    R152a
    R218
    R227ea
    RC318
    R600a
    R290
    R1270
    Opis:
    The article assesses the applicability of new refrigerants, being possible substitution for Freon 22, in marine refrigeration and air-conditioning systems. A collection of technical data on the physical properties of the new refrigerants is presented. Suggestions are made about certain energetic and ecological profits which can be gained when using energetically efficient refrigerants with low GWP values. The results of the TEWI comparison analysis for selected refrigerants are also included.
    Źródło:
    Polish Maritime Research; 2010, 2; 55-59
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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