98 research outputs found
Review of current status, requirements and opportunities for building performance simulation of adaptive facades†
Get PDFAdaptive 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
Overview of 100 climate adaptive building shells
Get PDFThis booklet presents the overview of 100 climate adaptive buildings shells (CABS) that was developed as part of the MSc project “CABS – What can we simulate?”. The overview is preferably read in conjunction with the main body of the thesis, however, it was drafted in such a way that it also invites to be examined in a stand-alone manner. The concept of CABS is very broad and described by a multitude of different terms. Many building envelopes do exhibit some form of dynamism; in this overview only those concepts were included that fulfill the following definition: A climate adaptive building shell has the ability to repeatedly and reversibly change its functions, features or behavior over time in response to changing performance requirements and variable boundary conditions. By doing this, the building shell effectively seeks to improve overall building performance in terms of primary energy consumption while maintaining acceptable thermal and visual comfort conditions. Beside being used as reference book for the thesis, the material presented in this booklet serves more purposes. By synopsizing case studies, prototypes and research projects it offers a technology scan that shows the state-of-the-art in adaptive façade technology. This information can be used by professionals engaged in development of building envelopes, and also provides a point of inspiration for designers exploring possibilities to enrich the domain of adaptive building shell technology. The overview of 100 CABS is the result of an extensive literature survey, collected from different kinds of information sources. It attempts to provide a comprehensive database that covers the whole spectrum of CABS, ranging from built examples that successfully operate for many years, to the wildest utopian concepts. The field of CABS is relatively young and in a continuous state of flux. Therefore the expectation is that this compilation will soon be superseded by even more appealing concepts and better performing technologies
Towards predicting the satisfaction with indoor environmental quality in building performance simulation
No full textCan computer simulations be used to predict occupant satisfaction and stimulate the design of energy-efficient, healthy buildings? This is the central question of this paper. In everyday practice, simulations are mostly used for building energy analysis and for limiting the occurrence of discomfort. There are, however, also opportunities for a more holistic prediction of indoor environmental quality (IEQ) with a focus on creating a positive experience for occupants. The aim of this position paper is to connect the field of building performance simulation (BPS) with IEQ research, by discussing the needs, recent advances and remaining challenges for prediction of overall occupant satisfaction. First, we highlight the importance of taking into account multiple performance criteria and physical domains. Based on a review of software tools, we then present a classification of their capabilities to simultaneously assess the various physical interactions. In the discussion that follows, we evaluate the merits and drawbacks of combined IEQ indices, and show how simulations can be used for predicting them. The paper concludes with an overview of research needs and possible directions for further development based on recent advances in the building performance simulation field
Towards New Metrics for the Characterisation of the Dynamic Performance of Adaptive Façade Systems
Get PDFTraditional façade characterisation metrics such as U-value and g-value are of limited value in the design process of buildings with adaptive façades. This issue is particularly important for adaptive façade components that have the capability of controlling thermal energy storage in the construction thermal mass. Building performance simulations can help to analyse the performance of buildings with adaptive façades, but such studies usually only provide information about the energy and comfort performance at room level. Consequently, there is a need for development and testing of new façade-level performance metrics that can be used to compare the performance of different adaptive façade components. This paper presents experiences and lessons learned from four European R&D projects that have introduced novel metrics to capture the dynamic performance of adaptive opaque façades. Characteristics of the different metrics are described, and their similarities and differences are compared and contrasted. The paper highlights the main benefits of metrics that can capture dynamic effects, and concludes by providing directions for future work.publishedVersionThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Author(s) hold their copyright without restrictions
Bioadaptivnaya obolochka zdaniya
No full textAdaptability is the ability of a system to act in response to variations in environmental conditions. Living organisms are able to efficiently capture, convert, store and process energy, water and sunlight. Unlike nature, buildings are typically conceived as static, inanimate objects
Bio-inspired adaptive building skins
No full textHow do living organisms capture, convert, store and process energy, water and sunlight? How does nature cool down, heat up, provide shade, and control light? Adaptability, the ability of a system to act in response to variations in environmental conditions often plays a key role in this context. Unlike living organisms, buildings are typically conceived as static, inanimate objects. Because a building’s surroundings and internal conditions are constantly changing, there is a lot to learn about how inspiration from nature can foster more adaptability of the façade for enhanced building performance. After highlighting the need for more adaptability in the built environment, this chapter reviews state-of-the-art examples of research concepts and design applications with bio-inspired adaptable
solutions for the building envelope. All examples are in the scope of building physics and energy efficiency with a focus on improving indoor environmental quality. The chapter concludes with an outlook of design support methodologies that can potentially incite the practical uptake of bio-inspired adaptive building
skins in the future
Shaping the next generation of adaptive facade concepts with the use of simulations
No full textNumerous demonstration studies have identified a large potential for adaptive facades to improve the energy performance and indoor environmental quality of buildings. However, to enable widespread application of these concepts, there is a need for more research and development, leading to innovative materials and components, and better scalable solutions. One of the barriers that hinders innovation and adoption of new technologies for improved energy efficiency in buildings is known as the Valley of Death – the metaphor which describes the lack of resources and expertise that impedes new ideas in their transition from lab to market. In this paper, the use of building performance simulation is put forward as a useful tool in the product development process of innovative adaptable building envelope components. By discussing the background principles and details of two application examples, we show how building performance simulation can become a useful tool to help close the gap between building material innovation and successful building application
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