Investigating the thermal behavior of double-skin perforated sheet façades: Part A: Model characterization and validation procedure

2014 ◽  
Vol 82 ◽  
pp. 50-62 ◽  
Author(s):  
Jesús M. Blanco ◽  
Pedro Arriaga ◽  
Eduardo Rojí ◽  
Jesús Cuadrado
2018 ◽  
Vol 7 (3.11) ◽  
pp. 172
Author(s):  
Ricardo Sánchez B ◽  
Sabarinah S. Ahmad ◽  
Leonardo B. Zeevaert ◽  
Arturo Valeriano F

The study aims to understand the thermal performance behavior of a double skin envelope system in a test cell.  A rooftop observation deck and experimentation laboratory is installed at the “J” Building of the Postgraduate Unit, National Autonomous University of Mexico campus (19°18’33.59”N, 99°11’5.73”O).  This platform consists of two full-scale testing modules. Each cubic module measures 3m x 3m x 3m.  All of its facades have several layers of insulation.  This platform was designed to test materials and construction systems under the Mexico City microclimate.  It is possible to measure thermal, lighting, acoustic and indoor air quality variables. Mexico City building codes indicate that the minimum span to be used in a room must be at least 17.5% of the area of the room.  Using the Experimentation Façade, which allows us to observe all available orientations; we place a window with these characteristics and measure its thermal behavior in each of the orientations.  The results obtained allowed us to identify that the window when observing the North or South orientations does not greatly increase the internal temperature of the Module.  On the other hand, when the window observes the orientations East and West, the internal temperature increase, establishes conditions of inhabitability inside the Module, recording temperatures of above 50°C.  


2013 ◽  
Vol 17 (3) ◽  
pp. 723-732 ◽  
Author(s):  
Abdelatif Merabtine ◽  
Riad Benelmir ◽  
Ganaoui el

In this work, a simplified graphical modeling tool, which in some extent can be considered in halfway between detailed physical and Data driven dynamic models, has been developed. This model is based on Bond Graphs approach. This approach has the potential to display explicitly the nature of power in a building system, such as a phenomenon of storage, processing and dissipating energy such as Heating, Ventilation and Air-Conditioning (HVAC) systems. This paper represents the developed models of the two transient heat conduction problems corresponding to the most practical cases in building envelope, such as the heat transfer through vertical walls, roofs and slabs. The validation procedure consists of comparing the results obtained with this model with analytical solution. It has shown very good agreement between measured data and Bond Graphs model simulation. The Bond Graphs technique is then used to model the building dynamic thermal behavior over a single zone building structure and compared with a set of experimental data. An evaluation of indoor temperature was carried out in order to check our Bond Graphs model.


2020 ◽  
Vol 40 (suppl 2) ◽  
pp. 597-604
Author(s):  
Zahra NILCHIAN ◽  
Mohamad Reza EHSANI ◽  
Zahra PIRAVI-VANAK ◽  
Hossein BAKHODA

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