Quantifying the potential of automated dynamic solar shading in office buildings through integrated simulations of energy and daylight
TL;DR: In this paper, the authors quantified the potential of dynamic solar shading facade components by using integrated simulations that took energy demand, the indoor air quality, the amount of daylight available, and visual comfort into consideration.
About: This article is published in Solar Energy.The article was published on 2011-05-01. It has received 237 citations till now. The article focuses on the topics: Facade & Daylight.
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TL;DR: In this article, the authors focused on the shading device types used in the building sector and the previous studies done for designating the performance aspects of different shading devices types and reviewed the importance of simulation modeling for shading devices in buildings.
Abstract: Many countries around the world are confronted with the challenge of decreasing energy consumption, while the use of electrical appliances is continuously increasing in buildings The requirement to minimize the energy consumption can be fulfilled by revaluating architectural aspects One of these aspects is related to overheating problems, caused by facades with large, glazed portions In such designs, shading elements must carefully be integrated and considered at an early-design stage in the design process Shading of buildings is crucial especially in climates with hot summer It is significant to protect the window from solar radiation in summer while allowing maximum solar radiation in winter For this reason, precise figures of their performance are needed As such, simulation tools are often used for identifying the most suitable shading element that suits the building In literature, there are many studies that have been done to designate the energy performance of shading devices in buildings by using simulation tools This study focuses both on the shading device types used in the building sector and the previous studies done for designating the performance aspects of different shading devices types Numerous studies for different building types located in different climatic regions have been reviewed in order to underline the importance of simulation modeling for shading devices in buildings
223 citations
TL;DR: In this article, the optimal window-to-wall ratio (WWR) in different European climates in relation to an office building characterized by best-available technologies for building envelope components and installations was investigated.
187 citations
TL;DR: In this article, the authors present a review of the capabilities of five widely used building performance simulation (BPS) tools in terms of their ability to model energy and occupant comfort performance of adaptive facades.
Abstract: Adaptive building envelope systems have the potential of reducing greenhouse gas emissions and improving the energy flexibility of buildings, while maintaining high levels of indoor environmental quality. The development of such innovative materials and technologies, as well as their real-world implementation, can be enhanced with the use of building performance simulation (BPS). Performance prediction of adaptive facades can, however, be a challenging task and the information on this topic is scarce and fragmented. The main contribution of this review article is to bring together and analyse the existing information in this field. In the first part, the unique requirements for successful modelling and simulation of adaptive facades are discussed. In the second part, the capabilities of five widely used BPS tools are reviewed, in terms of their ability to model energy and occupant comfort performance of adaptive facades. Finally, it discusses various ongoing trends and research needs in this field.
183 citations
Cites background from "Quantifying the potential of automa..."
...Among the wide range of technology options, switchable glazing (Baetens, Jelle, and Gustavsen 2010), movable solar shading (Nielsen, Svendsen, and Jensen 2011), wall-integrated phase change materials (PCMs) (Kuznik et al. 2011), dynamic insulation (Kimber, Clark, and Schaefer 2014) and…...
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TL;DR: In this article, a comprehensive technical review of passive wall systems in building envelopes while discussing their respective capabilities in optimizing energy efficiency is presented. But, the authors do not consider the impact of the passive wall system on the overall building environment.
Abstract: The building sector accounts for approximately 40% of total global energy usage. Energy consumption for space heating and cooling makes up 60% of the total consumed energy in buildings. This paper presents a comprehensive technical review of passive wall systems in building envelopes while discussing their respective capabilities in optimizing energy efficiency. Different types of energy efficient walls such as Trombe Walls, Autoclaved Aerated Concrete Walls, Double Skin Walls, and Green Walls are explored. Furthermore, novel concepts for optimizing energy efficiency in building envelopes are also introduced. Finally the utilization of passive wall systems to save energy while improving the building environmental impacts is discussed.
173 citations
TL;DR: In this article, the authors presented a methodology and the results of the search for the optimal transparent percentage in a facade module for low energy office buildings, in a temperate oceanic climate, on the four main orientations, on three versions of the office building and with different HVAC system's efficiency.
142 citations
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01 Jul 2008
TL;DR: The fourth element of the IPCC Fourth Assessment Report ''Climate Change 2007'' as mentioned in this paper is based on the assessment carried out by the three Working Groups of the Panel of the International Organization for Standardization.
Abstract: This Synthesis Report is the fourth element of the IPCC Fourth Assessment Report ''Climate Change 2007''. The Synthesis Report is based on the assessment carried out by the three Working Groups of the IPCC. It provides an integrated view of climate change and addresses the following topics: 1) Observed changes in climate and their effects; 2) Causes of change; 3) Climate change and its impacts in the near and long term under different scenarios; 4) Adaptation and mitigation options and responses, and the interrelationship with sustainable development, at global and regional levels; 5) The long-term perspective: scientific and socio-economic aspects relevant to adaptation and mitigation, consistent with the objectives and provisions of the Convention, and in the context of sustainable development; 6) Robust findings, key uncertainties (ln)
2,132 citations
TL;DR: In this article, the mean instantaneous sky luminance angular distribution pattern for all sky conditions from overcast to clear, through partly cloudy, skies is described. But the model is not suitable for the case of clouds.
813 citations
TL;DR: In this article, a CCD camera-based luminance mapping technology was used to provide new insight into the impact of luminance distributions on glare, and a new index, daylight glare probability (DGP), was developed and is presented in this paper.
783 citations
TL;DR: In this paper, the simultaneous impact of glazing area, shading device properties and shading control on building cooling and lighting demand was calculated using a coupled lighting and thermal simulation module, and the simulation results indicated that, if an integrated approach for automatic control of motorized shading is used in conjunction with controllable electric lighting systems, substantial reduction of energy demand for cooling in perimeter spaces, depending on climatic conditions and orientation.
507 citations