Smart Materials and Technology /// A03 biomimicry

Daniela A. Ottmann _ Assistant Professor _ ASD Architecture and Sustainable Design _ UPAD Department for Urban Planning and Architectural Design _German University of Technology in Oman (GUtech)

Assignment SMT03:

BIO-MIMICRY

material

environment function

Smart Materials and Technology ///Ass. SMT 03


Assignment SMT03: Biomimicry

1. find a bio-system (plant, species, etc.) on asknature.org that deals in

whatever function, process or structure with the environment DESERT.

Please each student one topic and a different one. >

2. analyze how it works:

in a minimum of 3 diagrams showing

>shape, form, design, structure

>mechanism, function, materials

>process of how it works

3. establish a concept of what you as urbanist/architect would like to

do with it.

4. apply your findings to concepts for systems applied in urbanism and/

or architecture.Weighting: 20% single work

Submission: Wednesday 06.03.2012 @ 11am

stick printed sheets onto a wall in your studio. arrange neatly.

thank you

Smart Materials and Technology ///Ass. SMT 03


Contribution by

Ahmed Amri

Smart Materials and Technology

KineticEnergy

PotentialEnergy

Tendonrelaxed

Muscle

Bone

Tendontensed

Tendon elastic Fibrous Structure

Mechanisim

Structure

Process

Example

Concept

Kinetic Energy

Electric Energy

Electric Energy

Use

Smart Materials & Technologies | Assignment 3Ahmed AlAmri | 2007-0016

Pavegens

Stretched

Comparison

Tendon Stretched

Relaxed

Tendon relaxed

Energy storage

Recovered Energy (Kinetic energy)Energy release

KineticEnergy

PotentialEnergy

KineticEnergy

PotentialEnergy

5 - 10 mm distence

Wallaby


Contribution by

Fouz Al Busaidi


Oriental Hornet

Shape

Smart Materials and TechnologyFouz Al Busaidi (2009-0019)

Main Light absorbers

Electricity


Oriental Hornet Light to Electricity

Function


Oriental Hornet Solar City


Pigment: xanthopterin (generates electricity)Slanted to absorb max solar radiation

Skin facade containing the yellow pigment

Oriental Hornet Solar Skin

Supplies electricity

Brown cuticle : N type (i.e. electron donors)Traps the light and transfers it to the yellow cuti-cle

Yellow cuticle : P-type (i.e. electron acceptors )Absorb solar radiation and transforms it into electricity

Exoskeletons: Organic semiconductor

Photons

Electrons Pigment: xanthopterin (generates electricity)

How an oriental hornet’s exoskeleton converts light into electricity which activates the hornet:


Oriental Hornet Light to Electricity

Process

Transfer of electrons

grooves absorb the light

splits the light into diverging beams

the grooves transfer the electrons to the yellow pigment

pigment generates electricity and is used up by the hornet

energy- electricity produced is stored in the body and used up

Electron �ow

Holes

Positive contact

Current �ow direction

Negative contactElectrons

Photons

n-silicon

p-silicon

Photovoltaic cell


Contribution by

Khadija Al Mandhari



Contribution by

Nasser Al Sayegh


Urban scale

Wind react to the shape

Applying leaver concept to the city

* wind direction

Ventilate the inner parts by direct the wind

* Assuming that the main wind direction is from south

Nasser Al-Sayegh 2008-0096

ConceptUsing Humaditiy to control temperature

How to apply it in our environment “Desert“ ?

*layer 1

Summer noon : light re�ected + wind �ow

* layer 1 Adjustable tilting surface used as sunlight re�ecters* layer 2 Wet fabric

wind �ow

*layer 1

Summer evening : no light + wind �ow Winter morning : sunlight + wind �ow

Winter nights : No wind �ow + Warming up interior

Sunlight re�ectors

light

Hercules beetlecolor due to humidity

Low humidity High humidity

color re�ecting

light

How it control humidity?

Exterior cover layer

Interior layer

Adjustable width strings

Humidity

Strings width


Contribution by

Nushrat Jahan Rima Alam



Contribution by

Rania Baig


The Thorny Devil

Applying Concept


Contribution by

Ricky Vinayachandran


Concept: Light sensitive facadeLinanthus pungens

Ricky Vinayachandran 2008-0006

Day Time

Evening Time

Shape

Function

Proccess

LongThinLeaf

SpreadsOpen

SlowEvaporation

WiltingE�ect

High WaterPressure

Low WaterPressure

Concept: Light sensitive facade


Shape

Function

Proccess

Thin LongPlates

TinnedShape Memory

Polymer

Light-InducedShape Change

ConcentratedBonds

LooseBonds

OriginalShape

DeformedShape

Concept: Light sensitive facade



Contribution by

Rola Al Harthy


Smart Materials and Technology Assignment 3

Rula AL-Harthy 2008-0048

Shape Structure Design



Co2

Harthy 2008-

O2 = water vapor -0048

Light Energy

Upper epidermis

Palisade

Containing chlorophyll &

chloroplast

Spongy

mesophyll

Lower epidermis

Stoma

O2 = water vapor

Stoma Stoma H2O

Water vessel

Process Metabolism Connection



Water vessel



Function Mechanics Material

TCO

Platinum

or glass

Dye

TiO2

TCO

Light reaction = the electrodes

sensitized Dye.

Dye + Titanium responsible to absorbed

light

Flat and large Surface area maximum

amount of sunlight

Produce = Energy

Magnified Section of a leaf Magnified Section of a Dye sanitized solar panel

Light reaction = the photo part

Chloroplast responsible to absorbed

light

Flat and large Surface area maximum

amount of sunlight

Produce O2 , H2O = Energy

Concept

Sunlight Sunlight

O2

Co2

Concept

Magnified Section of a Dye sanitized solar panel

=

Functions Process

Sunlight

Sunlight

TCO

Platinum

Dye +Ti2O

Energy

Trapped

sun heat

Dye sanitized solar panel of a window


Contribution by

Rowa El Zain



Contribution by

Rumana Othmani



Contribution by

Talal Al Haremi



Contribution by

Taleed Rose


Smart Materials and Technology /// A03 biomimicry

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