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    Numerical Investigation of Two-Phase Flow Over Unglazed Plate Collector Covered With Porous Material of Wire Screen for Solar Water Heater Application

    Source: Journal of Solar Energy Engineering:;2019:;volume( 141 ):;issue: 003::page 31009
    Author:
    Salameh, T.
    ,
    Zurigat, Y.
    ,
    Badran, A.
    ,
    Ghenai, C.
    ,
    El Haj Assad, M.
    ,
    Khanafer, Khalil
    ,
    Vafai, Kambiz
    DOI: 10.1115/1.4041737
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper presents three-dimensional numerical simulation results of the effect of surface tension on two-phase flow over unglazed collector covered with a wire screen. The homogenous model is used to simulate the flow with and without the effect of porous material of wire screen and surface tension. The Eulerian-Eulerian multiphase flow approach was used in this study. The phases are completely stratified, the interphase is well defined (free surface flow), and interphase transfer rate is very large. The liquid–solid interface, gas–liquid interface, and the volume fraction for both phases were considered as boundaries for this model. The results show that the use of porous material of wire screen will reduce the velocity of water flow and help the water flow to distribute evenly over unglazed plate collector. The possibility of forming any hot spot region on the surface was reduced. The water velocity with the effect of surface tension was found higher than the one without this effect, due to the extra momentum source added by surface tension in longitudinal direction. The use of porous material of wires assures an evenly distribution flow velocity over the inclined plate, therefore helps a net enhancement of heat transfer mechanism for unglazed solar water collector application.
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      Numerical Investigation of Two-Phase Flow Over Unglazed Plate Collector Covered With Porous Material of Wire Screen for Solar Water Heater Application

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4256368
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    • Journal of Solar Energy Engineering

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    contributor authorSalameh, T.
    contributor authorZurigat, Y.
    contributor authorBadran, A.
    contributor authorGhenai, C.
    contributor authorEl Haj Assad, M.
    contributor authorKhanafer, Khalil
    contributor authorVafai, Kambiz
    date accessioned2019-03-17T10:53:42Z
    date available2019-03-17T10:53:42Z
    date copyright11/14/2018 12:00:00 AM
    date issued2019
    identifier issn0199-6231
    identifier othersol_141_03_031009.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4256368
    description abstractThis paper presents three-dimensional numerical simulation results of the effect of surface tension on two-phase flow over unglazed collector covered with a wire screen. The homogenous model is used to simulate the flow with and without the effect of porous material of wire screen and surface tension. The Eulerian-Eulerian multiphase flow approach was used in this study. The phases are completely stratified, the interphase is well defined (free surface flow), and interphase transfer rate is very large. The liquid–solid interface, gas–liquid interface, and the volume fraction for both phases were considered as boundaries for this model. The results show that the use of porous material of wire screen will reduce the velocity of water flow and help the water flow to distribute evenly over unglazed plate collector. The possibility of forming any hot spot region on the surface was reduced. The water velocity with the effect of surface tension was found higher than the one without this effect, due to the extra momentum source added by surface tension in longitudinal direction. The use of porous material of wires assures an evenly distribution flow velocity over the inclined plate, therefore helps a net enhancement of heat transfer mechanism for unglazed solar water collector application.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleNumerical Investigation of Two-Phase Flow Over Unglazed Plate Collector Covered With Porous Material of Wire Screen for Solar Water Heater Application
    typeJournal Paper
    journal volume141
    journal issue3
    journal titleJournal of Solar Energy Engineering
    identifier doi10.1115/1.4041737
    journal fristpage31009
    journal lastpage031009-9
    treeJournal of Solar Energy Engineering:;2019:;volume( 141 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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