Water Management Lessons from Nature for Applications to Buildings

Badarnah, Lidia

doi:10.1016/j.proeng.2016.04.180

Cited by 17 publications

(14 citation statements)

References 59 publications

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“…The main challenges remain: the broad range of possibilities, the difficulties in the representation of the biophysical knowledge, and the challenging abstraction and transformation of relevant principles [10]. Nonetheless, the emerging biomimetic methods and frameworks for architectural applications are gaining a systematic trend to facilitate design concept generation, rather than limiting to specific examples [10,45,[60][61][62][63].…”

Section: Biomimeticsmentioning

confidence: 99%

“…The following sections elaborate on these two areas, and define potential convergences to facilitate a biomimetic design process towards environmental adaptation. architectural applications are gaining a systematic trend to facilitate design concept generation, rather than limiting to specific examples [10,45,[60][61][62][63].…”

Section: Biomimeticsmentioning

confidence: 99%

“…In terms of functions, water can be gained, conserved, transported, and/or lost for thermoregulation and other chemical reactions [63]. Some organisms gain water by condensation on their body surface [34] or constructed structures [38], as well as by absorbing water vapor directly from air via skin diffusion [75].…”

Section: Watermentioning

confidence: 99%

“…These morphologies have functional tasks that are associated with specific environmental processes, see Table 2. For example, the presence of hexagons, spikes, and knobs on surfaces decrease the contact angle and create a thin boundary layer to enhance condensation [63], and these can be observed in some organisms inhabiting arid regions [35,89,90]. Certain morphologies can also influence other environmental challenges, such as trichomes that enhance water condensation and light scattering.…”

Section: Morphological Considerations For Environmental Adaptationmentioning

confidence: 99%

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Form Follows Environment: Biomimetic Approaches to Building Envelope Design for Environmental Adaptation

Badarnah

2017

Buildings

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Building envelopes represent the interface between the outdoor environment and the indoor occupied spaces. They are often considered as barriers and shields, limiting solutions that adapt to environmental changes. Nature provides a large database of adaptation strategies that can be implemented in design in general, and in the design of building envelopes in particular. Biomimetics, where solutions are obtained by emulating strategies from nature, is a rapidly growing design discipline in engineering, and an emerging field in architecture. This paper presents a biomimetic approach to facilitate the generation of design concepts, and enhance the development of building envelopes that are better suited to their environments. Morphology plays a significant role in the way systems adapt to environmental conditions, and provides a multi-functional interface to regulate heat, air, water, and light. In this work, we emphasize the functional role of morphology for environmental adaptation, where distinct morphologies, corresponding processes, their underlying mechanisms, and potential applications to buildings are distinguished. Emphasizing this morphological contribution to environmental adaptation would enable designers to apply a proper morphology for a desired environmental process, hence promoting the development of adaptive solutions for building envelopes.

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Section: Biomimeticsmentioning

confidence: 99%

Section: Biomimeticsmentioning

confidence: 99%

Section: Watermentioning

confidence: 99%

Section: Morphological Considerations For Environmental Adaptationmentioning

confidence: 99%

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Form Follows Environment: Biomimetic Approaches to Building Envelope Design for Environmental Adaptation

Badarnah

2017

Buildings

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“…Nature has mastered the use of surface and interface engineering, for an array of functions. [15][16][17][18] Engineering surface texture to tune hydrophobicity is widely observed leading to comparable results, albeit via different surface morphologies, for example in the lotus (Figure 1a) and the rice (Figure 1b) leaves. [19][20][21] Similarly, surface texture engineering can be used to create hydrophilic surfaces essential for water harvesting, for example in the desert lizard (Figure 1c), or homeostasis.…”

Section: Role Of Surface Texture and Morphology In Naturementioning

confidence: 91%

Tuning surface texture of liquid metal particles by exploiting material metastability

Cutinho

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Surface roughness, and associated changes in properties, often dictate how a material is utilized or manifests unprecedented capabilities to well-known materials. Most approaches to engineer surface texture are, however, predominantly based on additive and/or subtractive routes that are often either; i) inefficient (arduous, lengthy and expensive), or ii) inaccessible (due to a need for specialized equipment and skilled manpower). Understanding a materials interface structure at the sub-nanometer scale, and pairing this with its thermodynamic landscape, offers a new frugal approach to engineer its surface texture. Herein, we demonstrate thermal-driven evolution of surface morphology by exploiting inherent structural complexity, and metastability, of the ultra-thin passivating oxide on liquid metal particles. We achieve tunable surface texture via thermal-triggered oxidation of the liquid, whereby structural order on the surface was controlled through kinetics (reduction potentials of constituent elements) and stoichiometry, the latter being driven by interfacial phase-segregation upon oxidation. Release of the underlying phasesegregated components lead to inversion in the composition of the surface of these metal oxides, with concomitant growth in the thickness of the passivating layer. We divide our study in two parts viz; i) utilizing a thermodynamically stable core with a metastable shell, and ii) engineering liquid metal particles with metastable core and a metastable interface. For the former case, we obtained particles characterized by crumples, patches and multi-tiered roughness with increase in processing temperature and time. The overall structure of the particle evolves from a smooth sphere into a crumpled sphere and eventually a textured surface with increasing temperature while retaining the liquid core. At temperatures >1173 K, the liquid core is not observed but a hollow solid particle is formed with significant inter-particle sintering. For particles with metastable core vi and metastable interfaces, we observed greater effects of thermal stress due to phase change. The particles undergo spinodal decomposition upon solidification while differences in thermal expansivities of the constituent elements led to dendritic growth, albeit after a specific trigger temperature.

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Morphological differentiation for the environmental adaptation of biomimetic buildings: Skins, surfaces, and structures

Badarnah

Zolotovsky

2022

Biomimicry for Materials, Design and Habitats

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Water Management Lessons from Nature for Applications to Buildings

Cited by 17 publications

References 59 publications

Form Follows Environment: Biomimetic Approaches to Building Envelope Design for Environmental Adaptation

Form Follows Environment: Biomimetic Approaches to Building Envelope Design for Environmental Adaptation

Tuning surface texture of liquid metal particles by exploiting material metastability

Morphological differentiation for the environmental adaptation of biomimetic buildings: Skins, surfaces, and structures

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