An oak composite thermal dynamic envelope

2019

Buildings

Many operable and complementary layers make up a vernacular adaptive envelope. With vertical operable translucent textile blinds, horizontal foldable glass doors with thin structural framing, wooden horizontal foldable frames with vertical rotational shutters, plants with dynamic densities, humidity concentrations, and opaque operable textile blinds forming the deep responsive façades of many Southern European buildings as part of the building envelope. This low-tech configuration utilizes behavioral human interaction with the building. On their own, these are singular mechanisms, but as coupled systems, they become highly advanced adaptive building systems used to balance temperature sensations. The research investigates such an adaptive envelope structure through identification of operable elements and their thermal and energy performances through computer simulation models. The designed research computational model includes assessment of heat reception and transfer, resultant operative temperatures, and adaptive comfort sensations. The aim of the research and the material presented in this paper is understanding the performance of native, local, low-tech systems as an opposing approach to contemporary high-tech, complex mechanical systems. The study finds that the operable elements and various compositions make a significant, yet less than anticipated, impact on adaptive thermal comfort temperatures.

Section: Introductionmentioning

confidence: 99%

Thermal Responsive Performances of a Spanish Balcony-Based Vernacular Envelope

2019

Buildings

“…Erasing the boundaries between the natural and the built environment, the fluctuating climatic fluxes in nature, such as solar radiation, thermodynamic flow, or wind flow can become an integral part of the design process leading towards environment-based, responsive architectures. The research of environment-responsive architectural prototypes stimulates new ideas and discovers the potential of such architecture (Foged and Pasold 2016;Nagy et al 2016;Reichert et al 2015). Amidst all the weather forces that affect architecture, the interaction of wind fluxes with building shape is the most perceptible in the building, as well as urban scale.…”

Section: Introductionmentioning

confidence: 99%

Building envelope adapting from and to the wind flow

Kabošová

Blucher Design Proceedings

Kmeť

et al. 2019

The paper presents research for wind-responsive architecture. The main objective is the digital design methodology incorporating the dynamic, fluctuating wind flow into the shape-generating process of architectural envelopes. These computational studies are advanced and informed through physical prototyping models, allowing a hybrid method approach. The negative impacts of the wind at the building scale (wind loads), as well as urban scale (wind discomfort), can be avoided and even transformed into an advantage by incorporating the local wind conditions to the process of creating architectural envelopes with adaptive structures. The paper proposes a tensegrity-membrane system which, when exposed to the dynamic wind flow, enables a local passive shape adaptation. Thus, the action of the wind pressure transforms the shape of the building envelope to an unsmoothed, dimpled surface. As a consequence, the aerodynamic properties of the building are modified, which contributes to reducing wind suction and drag force. Moreover, the slight shape change materializes and articulates the immaterial wind phenomena. For a better understanding of the dynamic geometric properties, one unit of the wind-responsive envelope is tested through simulations, and through physical prototypes. The idea and material-geometric studies are subsequently applied in a specific case study, including a designed building envelope in an industrial silo cluster in Stockholm.

“…The previous solutions of auxiliary adaptive envelopes are many if simple fixed louvre-based systems are included in the state-of-art framework. When considering material-driven actuation of responsive building envelopes, studies by Reichert and colleagues 4 , 5 , Correa et al 6 and Foged and Pasold 7 , 8 need mentioning. These studies have been focused on the material-geometric bending performance, operation and effects of the material system alone, where responsive behaviour is limited to the intrinsic movement capacities of the material assembly in response to changing thermal and humidity microclimatic conditions.…”

Section: Introductionmentioning

confidence: 99%

Development of a hybrid behavioural and thermal adaptive building envelope

International Journal of Architectural Computing

Pasold

2019

This study focuses on the design of behavioural mechanisms for a hybrid informed adaptive envelope. Based on a full-scale experimental demonstrator, including a material responsive and a sensor–processing–actuation adaptive system, quantitative and qualitative methods are applied to identify, describe and study behavioural modes of the adaptive envelope. Through sensor data values and observations, the study finds that the adaptive response patterns are best based on subjective, human-mapped sensations, rather than prescribed environmental comfort, numeric-based sensor values. Those adaptive response patterns should account for change in tempi of the environment, occupier and envelope to establish advanced cause and effect relations, beyond generic thermal comfort performance metrics.