The Experts below are selected from a list of 3555 Experts worldwide ranked by ideXlab platform
J.-j. Roux - One of the best experts on this subject based on the ideXlab platform.
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Experimental study of a mechanically ventilated double-skin façade with venetian sun-Shading Device: A full-scale investigation in controlled environment
Solar Energy, 2010Co-Authors: V. Gavan, M. Woloszyn, F. Kuznik, J.-j. RouxAbstract:The aim of this article is to present results of an experimental campaign performed on a full-scale facility provided with a double-skin façade. The behaviour of this architectural concept is tested under controlled climatic conditions. A summer case is scrutinised under different configurations: variation of the airflow through the double-skin façade and different angle of the solar Shading Device. This paper describes the experimental conditions, as well the test facility and the tested façade element. The results show the temperatures of the test cell and the façade and how they depend on the climatic conditions and the sun-Shading Device blade angles. One objective of this research was to measure and provide extensive data set detailing air and surface temperatures on the double-skin façade, together with airflow rates and air velocities. The experiments are fully described so that the results can be used for the validation of numerical models dealing with ventilated double-skin façades with venetian sun-Shading Device.
A H C Van Paassen - One of the best experts on this subject based on the ideXlab platform.
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symbiosis of the double skin facade with the hvac system
Energy and Buildings, 2005Co-Authors: W J Stec, A H C Van PaassenAbstract:Abstract Impact of the natural ventilation on the building depends on the design of the several components of the building like facade, HVAC and control system. Paper presents several tests of the building with different selection of the components. The double skin facade is compared to the single skin facade with the external or internal Shading Device and with climate wall. Furthermore, impact of the mechanical or natural night cooling, predictive control is discussed. Final solution represents the possible reduction in HVAC system to balance the costs of the double skin facade. The tests were carried out with the simulation program built in Simulink™ validated with the measurements taken in Test cell at TU Delft as well as in the real office building. Each solution is qualified based on differences in capacities, energy consumptions and costs for various solutions of facade, HVAC system and control. As a final solution optimization of the HVAC system is presented
V. Gavan - One of the best experts on this subject based on the ideXlab platform.
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Experimental study of a mechanically ventilated double-skin façade with venetian sun-Shading Device: A full-scale investigation in controlled environment
Solar Energy, 2010Co-Authors: V. Gavan, M. Woloszyn, F. Kuznik, J.-j. RouxAbstract:The aim of this article is to present results of an experimental campaign performed on a full-scale facility provided with a double-skin façade. The behaviour of this architectural concept is tested under controlled climatic conditions. A summer case is scrutinised under different configurations: variation of the airflow through the double-skin façade and different angle of the solar Shading Device. This paper describes the experimental conditions, as well the test facility and the tested façade element. The results show the temperatures of the test cell and the façade and how they depend on the climatic conditions and the sun-Shading Device blade angles. One objective of this research was to measure and provide extensive data set detailing air and surface temperatures on the double-skin façade, together with airflow rates and air velocities. The experiments are fully described so that the results can be used for the validation of numerical models dealing with ventilated double-skin façades with venetian sun-Shading Device.
Gon Kim - One of the best experts on this subject based on the ideXlab platform.
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Impact of Different Placements of Shading Device on Building Thermal Performance
Sustainability in Energy and Buildings, 2013Co-Authors: Hong Soo Lim, Jeong Tai Kim, Gon KimAbstract:In America, the method of receiving the certification for environmental architecture through renovation is activated but in South Korea, it is difficult to find except for the minor renovations occurred to change the previous construction material built in early 2000. It is more efficient to raise the value of an old building by putting over a double skin facade on the outside to make the building more energy efficient than to build a new building. Thus, in this study the energy efficiency of the Shading Device, the most frequently used composition in designing the double skin facade, is evaluated. Also, the energy efficiency of the typical horizontal blind and the Shading Device with V-shape slat were compared and used to evaluate the cooling and heating load according to the position changes.
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Comparative advantage of an exterior Shading Device in thermal performance for residential buildings
Energy and Buildings, 2012Co-Authors: Gon Kim, Hong Soo Lim, Tae Sub Lim, Laura Schaefer, Jeong Tai KimAbstract:Abstract Optimal Shading systems should increase daylight levels while controlling the amount of excessive sunlight and reducing discomfort and glare for the occupants. To eliminate the effect of absorbing solar heat, Shading systems should be located in the external part of the window. An external Shading Device requires many design consideration such as solar geometry, physical dimension of the elements, materials, finishes, control strategies, and aesthetics. This study proposes an experimental configuration of an external Shading Device can be applied to apartment houses in South Korea. To verify the advantage of the external Device, conventional daylighting Devices have been examined and compared in terms of energy savings for heating and cooling. A series of simulations by an energy analysis program, IES_VE, has revealed that the experimental Shading Device promises the most efficient performance with various adjustments of the slat angle. A secondary advantage is that it also provides better views for occupants.
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Predicted Performance of Shading Devices for Healthy Visual Environment
Indoor and Built Environment, 2010Co-Authors: Hong Soo Lim, Gon KimAbstract:The main purpose of using a Shading Device is usually to prevent excessive sunlight from delivering into the building and to distribute daylight entering a building more evenly in space. However, in the design of a vertical fenestration system, there are a variety of considerations related to the building type and daylighting potentials such as: latitude, climatic characteristics, the position of the sun and outdoor obstructions. To enhance the performance of sun lighting control, a Shading Device should play a more efficient role according to the building shape and orientation. This paper examines the method designed to improve both the indoor natural illuminance and open view for a better visual environment. The main aim of the proposed approach is to provide a simplified calculation for the several conditions of Shading Device shapes based on the computer simulation analysis. The proposed method was conducted by dividing the internal illuminance into four types of the Shading Device systems due to the ...
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Advanced External Shading Device to Maximize Visual and View Performance
Indoor and Built Environment, 2010Co-Authors: Jeong Tai Kim, Gon KimAbstract:Controlling or avoiding direct sun beam shining into the interior is a key criterion for consideration in most architectural daylighting designs. This treatment is mainly intended to attenuate the adverse glare and contrast associated with direct sunlight and to lessen the negative contribution of direct sunlight on the cooling load. Window shades are commonly used in Korea to reduce heat gains in the form of direct beam radiation, particularly in summer. Very often they consist of non-movable structures, such as overhangs, vertical fins or composition of both, forming eggcrate-type systems, and ideally should be designed by incorporating these methods. One of the simplest sunlighting controls is Venetian blind. It plays a role in excluding direct sunlight but reflecting light to rear interior, while still allowing a view to exterior. The blinds also go far toward improving uniformity in illuminance. External Shading Devices are much more effective than internal Shading Devices. However, it is not popular...
Marco Perino - One of the best experts on this subject based on the ideXlab platform.
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experimental evaluation of a climate facade energy efficiency and thermal comfort performance
Energy and Buildings, 2010Co-Authors: Valentina Serra, Fabio Zanghirella, Marco PerinoAbstract:The results of an extensive experimental campaign on a climate facade with a mechanically ventilated air gap, carried out at the Department of Energetics at the Politecnico di Torino, are presented. Measurements were performed utilizing the TWINS (Testing Window Innovative Systems) test facility, which consists of two outdoor cells, one used for reference purposes, and the other which adopts different active facade configurations. The energy efficiency of the facade and the thermal comfort implications have been evaluated considering the ability to pre-heat the ventilation air in the winter season, and the ability to remove part of the solar load during the summer season; the normalized daily energy passing through the facade and the normalized surface temperature of the inner glass were analysed. The improvement in performance obtained by varying the configuration and operative conditions (changing the air flow rate, the Shading Device and the internal glazing) has been investigated.
