期刊
ENERGY AND BUILDINGS
卷 133, 期 -, 页码 628-639出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2016.10.020
关键词
Double skin facade; Perforated plate; Pressure drop; Cavity
资金
- Scientific and Technological Research Council of Turkey (TUBITAK) Foundation [112M170]
The aim of this study is to analyze the effect of perforated elements on pressure drop in a double skin facade cavity. This cavity separates the exterior and interior space as thermally controllable. The temperatures of the surfaces facing cavity with exterior and interior spaces have been determined experimentally under different airflow conditions. Two distinct perforated plates having different circular. hole dimensions are positioned in the double skin facade cavity in order to create a pressure drop in the cavity. Pressure drops and temperature distributions in the cavity have been examined based on experimental measurements. The results show the surface and air temperature distributions in the cavity, the pressure drops under three different air flow rates and two different perforated plates. The dependence of the dimensionless pressure drop coefficient, Euler versus Reynolds numbers is investigated experimentally for different geometric characteristic of the perforated plates. So, Eu numbers independency after 30,000 of the Re numbers approximately is shown graphically. Evaluating the pressure loss in the DSF's cavity under usage of different type of pressure drop elements is essential for ventilating the cavity and choosing the fan capacity in the DSF applications. (C) 2016 Elsevier B.V. All rights reserved.
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