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    Wyświetlanie 1-5 z 5
    Tytuł:
    Diagnosis of damage to the ventilation system
    Autorzy:
    Voznyak, Orest
    Spodyniuk, Nadiia
    Sukholova, Iryna
    Dovbush, Oleksandr
    Kasynets, Mariana
    Datsko, Oleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/1840850.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    air distribution
    damages
    swirled air jet
    compact air jet
    flat air jet
    dystrybucja powietrza
    uszkodzenie
    strumień powietrza
    system wentylacyjny
    Opis:
    The article is devoted to solving of urgent problem to eliminate damages of two types in ventilation systems for air distribution efficiency increasing in the premises by swirled air flow, compact air jet, flat air stream and rectangular air jet. A mathematical model of air supply with swirled air flow, compact air jet, flat air jet and rectangular air stream in the room has been developed. It is shown that in order to achieve the maximum efficiency of air distribution it is necessary to ensure its supply by jets. Graphical and analytical dependences on the basis of the conducted experimental research are presented. Parameters of swirled air flow, compact air jet, flat air stream and rectangular air jet during the formation of a comfortable indoor climate are determined. The results of experimental studies of air supply to the room by the air distribution devices, which form a swirled air flow, compact air stream, flat air flow and rectangular air jet with adequate turbulence and long range of the supply air flow, are presented. It is established that with the increase of the angle of swirling plates inclination and ratio of the slit sides the air jets long range increases.
    Źródło:
    Diagnostyka; 2021, 22, 3; 91-99
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diagnosis of damage to the ventilation system
    Autorzy:
    Voznyak, Orest
    Spodyniuk, Nadiia
    Sukholova, Iryna
    Dovbush, Oleksandr
    Kasynets, Mariana
    Datsko, Oleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/1840873.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    air distribution
    damages
    swirled air jet
    compact air jet
    flat air jet
    dystrybucja powietrza
    uszkodzenie
    strumień powietrza
    system wentylacyjny
    Opis:
    The article is devoted to solving of urgent problem to eliminate damages of two types in ventilation systems for air distribution efficiency increasing in the premises by swirled air flow, compact air jet, flat air stream and rectangular air jet. A mathematical model of air supply with swirled air flow, compact air jet, flat air jet and rectangular air stream in the room has been developed. It is shown that in order to achieve the maximum efficiency of air distribution it is necessary to ensure its supply by jets. Graphical and analytical dependences on the basis of the conducted experimental research are presented. Parameters of swirled air flow, compact air jet, flat air stream and rectangular air jet during the formation of a comfortable indoor climate are determined. The results of experimental studies of air supply to the room by the air distribution devices, which form a swirled air flow, compact air stream, flat air flow and rectangular air jet with adequate turbulence and long range of the supply air flow, are presented. It is established that with the increase of the angle of swirling plates inclination and ratio of the slit sides the air jets long range increases.
    Źródło:
    Diagnostyka; 2021, 22, 3; 91-99
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diagnosis of three types damages to the ventilation system
    Autorzy:
    Voznyak, Orest
    Spodyniuk, Nadiia
    Sukholova, Iryna
    Savchenko, Olena
    Kasynets, Mariana
    Datsko, Oleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/2096172.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    air distribution
    air velocity
    swirled air jet
    compact air jet
    flat air jet
    dystrybucja powietrza
    prędkość powietrza
    system wentylacyjny
    diagnostyka
    Opis:
    The article is devoted to solving of urgent problem to eliminate damage in ventilation system. That is caused by non-adequate long range, stagnant unventilated areas in the room existance and high noise level in the premises at air distribution by swirled air flow, compact air jet, flat air stream and rectangular air jet. A noise level of air supply with swirled air flow, compact air jet, flat air jet and rectangular air stream in the room has been investigated. It is shown that in order to achieve the maximum noise level decreasing it is necessary to ensure its supply by jets, which less intensively attenuate before entering the premise working area. Results of the experimental research are presented as graphical and analytical dependences. The acoustic properties of the swirled air flow, compact air jet, flat air stream and rectangular air jet have been investigated and means of situation improving have been determined. The results of experimental research of air supply to the room are presented. It is established that with the increase of the angle of swirling plates inclination and ratio of the slit sides the air jets noise level decreases.
    Źródło:
    Diagnostyka; 2022, 23, 1; 1--10
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of air jets velocity attenuation at special initial conditions
    Autorzy:
    Voznyak, Orest
    Spodyniuk, Nadiia
    Savchenko, Olena
    Dovbush, Oleksandr
    Kasynets, Mariana
    Datsko, Oleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/2146736.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    air distribution
    swirl jet
    rectangular jet
    compact jet
    flat jet
    dystrybucja powietrza
    strumień powietrza
    Opis:
    The article is devoted to solving the significant problem of efficiency increasing of air distribution in the premise by swirl air jet. The aim of the article is to decrease coefficient of velocity attenuation due to intensification of initial turbulence of different air streams leakage from the air distributor and to obtain of analytical equations for calculation of air distribution in a room to ensure the normative indoor air parameters. Effect of flow twisting results in a reduction of the velocity attenuation coefficient by 2.4 times. The regression analysis testified that the attenuation coefficient of the swirl air jet is more affected by the angle of the twisting plates inclination and less affected by the angle of change of the air flow direction. The attenuation coefficient of all types of rectangular air jets is more influenced by the the ratio of the sides of slit b/l and the angle of change of the air flow direction is also less affected. To minimize the attenuation factor, it is effective to use air distributors at smaller swivel plates inclination angles for swirl air jets and a smaller slit size ratio for all types of rectangular air jets.
    Źródło:
    Diagnostyka; 2022, 23, 3; art. no 2022308
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhancing of energetic and economic efficiency of air distribution by swirled-compact air jets
    Autorzy:
    Zhelykh, Vasyl
    Voznyak, Orest
    Yurkevych, Yuriy
    Sukholova, Iryna
    Dovbush, Oleksandr
    Powiązania:
    https://bibliotekanauki.pl/articles/23965507.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    dystrybucja powietrza
    dynamiczny mikroklimat
    strumień wirowy
    odnowa termiczna
    sprzedaż energii
    air distribution
    swirled-compact jet
    dynamic microclimate
    thermal renewal
    energy saling
    Opis:
    The article is devoted to solving the urgent task of increasing the efficiency of air distribution by swirled-compact air jets to ensure the normative parameters of indoor air. The dynamic parameters of the swirled-compact air jet during its leakage in the alternating mode and the formation of a dynamic indoor climate in the room are determined. For improvement of comfortable conditions in the room and design of energy saving circuits of air distribution it is suggested to use swirled-compact air jets, which flow from the inflow and exhaust heat recuperators with heat recovery of the exhaust air. An energy audit of the ventilation system reconstruction with a recuperator using was carried out. The method of taking into account the fact of application of several measures, which cannot be carried out simultaneously, and discount rate dynamics is proposed.
    Źródło:
    Production Engineering Archives; 2021, 27, 3; 171--175
    2353-5156
    2353-7779
    Pojawia się w:
    Production Engineering Archives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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