scholarly journals The use of Dynamic Environmental Control Systems (DECS) in Cavities of Double Skin Facades for Energy Savings

2015 ◽  
Vol 118 ◽  
pp. 833-841 ◽  
Author(s):  
M. Spastri ◽  
D. Noble ◽  
K. Kensek ◽  
J. Choi
Keyword(s):  
Control Systems ◽  
Energy Savings ◽  
Environmental Control ◽  
Double Skin ◽  
Double Skin Facades

Comparative Study of Heat Transfer in Double Skin Facades on High-Rise Office Building in Jakarta

2012 ◽  
Vol 170-173 ◽  
pp. 2751-2755 ◽  
Author(s):  
Daryanto Daryanto
Keyword(s):  
Heat Transfer ◽  
Energy Savings ◽  
Field Measurements ◽  
Building Envelope ◽  
Office Buildings ◽  
High Rise ◽  
Double Skin ◽  
And Behavior ◽  
Double Skin Facades

Building envelope on high-rise office buildings have an important role of energy consumed. There are many methods and techniques that can be used to achieve this goal through energy efficiency for building envelope in the tropic area. The use of glass material becomes one of the alternatives that offer a more attractive appearance. Although the double skin facades (DSF) has been widely applied, but research on the thermal performance and behavior of the wind is still scarce for the tropics, so it is interesting to note related to energy conservation. To obtain a clear picture of the heat transfer and airflow, the research was conducted on the two office buildings with the same orientation and location but they were different on the building envelope. The study was conducted by the field measurements and simulation using CFD-ACE + software, to determine the performance of the heat transfer and behavior of airflow in the double skin facades. The results indicate that the role of wind on the design building envelope has an influence on the heat transfer and energy savings. Key words: wind, double skin facade, heat transfer, CFD, energy

Classification and re-evaluation of double-skin facades

2011 ◽  
Vol 2 (2) ◽  
pp. 129-136 ◽  
Author(s):  
A. Gelesz ◽  
A. Reith
Keyword(s):  
Computer Simulation ◽  
Potential Energy ◽  
Classification System ◽  
Energy Savings ◽  
Double Skin ◽  
Double Skin Facades

Abstract The construction of double-skin glass facades in Hungary has mainly design or acoustic motivations. The potential energy savings or risks of double-skin facades are, however, not commonly evident. This fact is not surprising if we notice that there is no widely excepted classification of these constructions. In the following article different facade typologies are compared (Pottgiesser, BBRI, Széll) and an attempt to develop a transparent classification system is made. Subsequently a few chosen facade types, which are expected to perform well in the Hungarian climate, are evaluated through computer simulation programs to serve as a guideline for the design on climates similar to the domestic one.

Predicting airflow in naturally ventilated double-skin facades: Theoretical analysis and modelling

2021 ◽  
Author(s):  
Yao Tao ◽  
Xiang Fang ◽  
Michael Yit Lin Chew ◽  
Lihai Zhang ◽  
Jiyuan Tu ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Double Skin ◽  
Double Skin Facades

The Role of Wind on Double Skin Facades in High Rise Office Building

2013 ◽  
Vol 787 ◽  
pp. 711-716
Author(s):  
Daryanto ◽  
Eko Budihardjo ◽  
Wahyu Setyabudi ◽  
Gagoek Hardiman
Keyword(s):  
Energy Conservation ◽  
Building Envelope ◽  
Office Buildings ◽  
Thermal Discomfort ◽  
High Rise ◽  
Double Skin ◽  
The Subject ◽  
Air Conditioning Systems ◽  
Double Skin Facades

There was an indication that high rise buildings in Jakarta was not designed based on energy conservation principles. The most important aspects of the high-rise buildings is energy saving technology located in the building envelope design. Building envelope with a full glass design functions for widening view and enhancing natural lights, even though but it is also increasing energy consumption and thermal discomfort due to the intensity of solar radiation in hot humid climates. During the current decade, the development of double building envelope type (Double Skin Façade: DSF) seemed more just to improve the aesthetics and the use of natural light, while the wind and thermal performance aspects were still lack of serious consideration. Those aspects will be chosen as the subject matter in this research. The research was aimed to investigate and compare the value of heat transfer in the building envelope of high-rise office buildings. Samples were taken from five DSF buildings, with closed and open cavity. CFD software is used for simulation of the five different models of DSF. The research proves that the high-rise office buildings as the research object in Jakarta do not apply energy conservation principle. The utilization of wind in the DSF cavity can reduce temperature and relieve the burden of air conditioning systems that is energy save. An important finding of the research is the need for ventilation in the design of a double skin at high-rise office buildings in the humid tropics.

scholarly journals Study on the Influence of Mounting Dimensions of PV Array on Module Temperature in Open-Joint Photovoltaic Ventilated Double-Skin Façades

2021 ◽  
Vol 13 (9) ◽  
pp. 5027
Author(s):  
Wenjie Zhang ◽  
Tongdan Gong ◽  
Shengbing Ma ◽  
Jianwei Zhou ◽  
Yingbo Zhao
Keyword(s):  
Heat Dissipation ◽  
Temperature Drop ◽  
Vertical Direction ◽  
Wind Pressure ◽  
Pv Array ◽  
Pv Module ◽  
Pv Modules ◽  
Double Skin ◽  
Open Joint ◽  
Double Skin Facades

In building integrated photovoltaics (PV), it is important to solve the heat dissipation problem of PV modules. In this paper, the computational fluid dynamics (CFD) method is used to simulate the flow field around the open-joint photovoltaic ventilated double-skin façades (OJ-PV-DSF) to study the influence of the mounting dimensions (MD) of a PV array on the module temperature. The typical summer afternoon meteorological parameters, such as the total radiation (715.4 W/m2), the outdoor temperature (33.1 °C), and the wind speed (2.0 m/s), etc., are taken as input parameters. With the DO (discrete ordinates) model and the RNG (renormalization-group) k − ε model, a steady state calculation is carried out to simulate the flow of air in and around the cavity under the coupling of hot pressure and wind pressure, thereby obtaining the temperature distribution of the PV array and the wall. In addition, the simulation results are compared with the onsite experimental data and thermal imaging to verify the accuracy of the CFD model. Then three MD of the open joints are discussed. The results show that when the a value (represents the distance between PV modules and wall) changes from 0.05 to 0.15, the temperature drop of the PV module is the most obvious, reaching 2.0 K. When the b value (representing the distance between two adjacent PV modules in the vertical direction) changes from 0 to 0.1, the temperature drop of the PV module is most obvious, reaching 1 K. When the c value (represents the distance between two adjacent PV modules in the horizontal direction) changes from 0 to 0.1, the temperature of the PV module is lowered by 0.8 K. Thus, a = 0.1–0.15, b = 0.1 and c = 0.1 are recommended for engineering applications to effectively reduce the module temperature.

Double-Skin Façades: Boundary Conditions, Challenging Examples and Developments

ce/papers ◽  
2018 ◽  
Vol 2 (5-6) ◽  
pp. 103-112
Author(s):  
Fabian Schmid ◽  
Xenia Cseh ◽  
Emil Rohrer ◽  
Martien Teich
Keyword(s):  
Boundary Conditions ◽  
Double Skin ◽  
Double Skin Facades

Smart-device environmental control systems: experiences of people with cervical spinal cord injuries

2017 ◽  
Vol 13 (8) ◽  
pp. 724-730
Author(s):  
Bethany Hooper ◽  
Michele Verdonck ◽  
Delena Amsters ◽  
Michelle Myburg ◽  
Emily Allan
Keyword(s):  
Spinal Cord ◽  
Control Systems ◽  
Spinal Cord Injuries ◽  
Environmental Control ◽  
Cervical Spinal Cord ◽  
Smart Device
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