NUMERICAL STUDY ON AIRFLOW IN AN OFFICE ROOM WITH ADISPLACEMENT VENTILATION SYSTEM

机译：带分配通风系统的办公室气流的数值研究

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This paper investigates airflow in an office room withrna displacement ventilation system parametricallyrnusing three-dimensional CFD. A numerical study isrnexecuted for a typical office room with a dimensionrnof 6m by 6m by 3m height according to a variety ofrnsupply air velocities, supply air temperatures and heatrnsource conditions. Internal cooling load is given asrn28W/m2 to 111W/m2. In CASE1, a heat source isrninstalled at the center of the room. In CASE2, fourrnheat sources are located separately in the modeledrnroom. The finite volume method and the lowrnReynolds number k- ε turbulence model arernemployed to solve the governing equationsrnnumerically. As a result, the temperature field in thernmodeled room for a displacement ventilation systemrnis concluded according to a variety of the abovernparameters. The stratification profiles in the roomrndepend especially on the supply air velocity. Thisrnmeans VAV systems are applicable to control roomrnair temperature for a displacement ventilation system.rn.

机译：本文研究了使用三维CFD参数设置的办公室排风通风系统中的气流。根据各种供气速度，送风温度和热源条件，对尺寸为6m x 6m x 3m高的典型办公室进行了数值研究。内部冷却负荷为asrn28W / m2至111W / m2。在案例1中，将热源安装在房间的中央。在案例2中，四个热源分别位于模型房间中。运用有限体积法和低雷诺数k-ε湍流模型数值求解控制方程。结果，置换通风系统的模型房间中的温度场根据上述各种参数得出。房间中的分层分布尤其取决于送风速度。这意味着VAV系统适用于控制置换通风系统的室温。

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来源
《Proceedings of building simulation 2005: proceedings of ninth IBPSA conference and exhibition》|2005年|381-388|共8页
会议地点 Montreal(CA)
作者
Yukihiro Hashimoto;
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作者单位

Polytechnic University, Dept. of Architecture,4-1-1 Hashimoto-dai, Sagamihara, Kanagawa-Pref., Japan 229-1196 email: yhashimo@uitec.ac.jp http://www.uitec.ehdo.go.jp.;

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5. Energy comparison of under floor air distribution heating ventilation and air conditioning systems in office buildings. [D] . Giles, Jonathon Richard. 2008

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6. Methane emissions and airflow patterns along longwall faces and through bleeder ventilation systems [O] . Robert B. Krog, Steven J. Schatzel, Heather N. Dougherty -1

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7. Numerical studies of airflows induced by mechanical-ventilation and air-conditioning (MVAC) systems [O] . Chow WK 2001

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8. Comparaison a l'aide d'un outil numerique de l'efficacite des systemes de ventilation active du sol limitant la penetration du radon dans l'habitat. (Comparison of effectiveness of sub-slab ventilation systems for indoor radon mitigation: A numerical study) [R] . Bonnefous, Y. C., Gadgil, A. J., Allard, F. 1992

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NUMERICAL STUDY ON AIRFLOW IN AN OFFICE ROOM WITH ADISPLACEMENT VENTILATION SYSTEM

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