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Wyszukujesz frazę "Nedbailo, Oleksandr" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
A Two-dimensional Numerical Model of Heat Exchange in the Soil Massif During the Operation of a Shallow Horizontal Soil Heat Exchanger
Autorzy:
Basok, Boris
Pavlenko, Anatoliy
Nedbailo, Oleksandr
Bozhko, Ihor
Moroz, Maryna
Powiązania:
https://bibliotekanauki.pl/articles/30145705.pdf
Data publikacji:
2023
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
shallow horizontal soil heat exchanger
heat flux
numerical modelling
renewable energy sources
Opis:
The current article uses a two-dimensional numerical model to represent the results of theoretical studies of the heat exchange in the soil massif during the operation of a shallow horizontal soil heat exchanger. The analysis of literature sources showed that one of the important conditions for the effective operation of a shallow-soil heat exchange is its rational design parameters, such as the total length of the pipeline, the diameter of the pipe, the distance between the axis of the adjacent pipes, the depth of the heat exchanger placement, etc. A two-dimensional heat exchange model in the soil mass was developed, which made it possible to investigate the operation of a shallow horizontal soil heat exchanger. It was found that the step between the axis of the adjacent pipes of the multi-loop heat exchanger, which is 0.95 m, is optimal when creating a shallow horizontal soil heat exchanger in the soil conditions of Kyiv.
Źródło:
Rocznik Ochrona Środowiska; 2023, 25; 274-281
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discrete-Pulsed Energy Input Based Method for Neutralisation of the Acidic Condensate
Autorzy:
Tselen, Bogdan
Ivanitsky, Georgiy
Obodovych, Oleksandr
Radchenko, Nataliya
Nedbailo, Anna
Gozhenko, Liubov
Powiązania:
https://bibliotekanauki.pl/articles/27315753.pdf
Data publikacji:
2023
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
hydrodynamic cavitation
acidic condensate
neutralisation
numerical modelling
experimental studies
environmental protection
Opis:
The article's authors analysed the most perspective and widely known methods of neutralising the acidic condensate, which is a by-product of natural gas combustion. Among them, the hydrodynamic cavitation method was the most effective. In this regard, it was proposed to improve this method by using the method of discrete-pulsed energy input, which involves neutralisation due to the degassing process. Based on the mathematical model of the bubble ensemble dynamics, a numerical simulation of the formation and growth of vapour-gas bubbles in the process of cavitation boiling of condensate was carried out. Also, an analytical study of the evolution of the vapour-gas bubble population and changes in the current vapour content of the condensate during its boiling was investigated under different values of the initial size of gas micronuclei. The results of the experimental study also confirmed the effectiveness of this method and showed that almost complete removal of carbonic acid from condensate occurs during the first two minutes of processing. That is evidenced by the increased pH values of condensate, which corresponds to the range of permissible pH values of distilled water. Therefore, the carbonic acid in the condensate is absent. Using this method will significantly reduce the environmental effect and the amount of harmful emissions.
Źródło:
Rocznik Ochrona Środowiska; 2023, 25; 215--221
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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