double skin facade - presentation

8/9/2019 double skin facade - presentation

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DOUBLE SKIN FACADE

FOR SUSTAINABLE TALL BUILDING


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EARTH CRISIS

The numberof people

increased

fastly

Exploitation ofexcessive

consumption

Nonrenewableresources

Globalwarming

Anything environmental

damage contributor


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CONSTRUCTION, THE BIGGEST

ENVIROMENTAL DAMAGE

CONTRIBUTOR

Consume 50% of

natural resources

40% energy

16% water

Contribute 45% CO2

emission more thantransportation and the

others industry


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SUSTAINABLE CONSTRUCTION

is one action or

movement that we

should do to minimize

environmental damage

So the challenge is to

achieve sustainability

and build high-rise

buildings


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SUSTAINABLE TALL BUILDING

Why must tall building

Tall buildings have great potential of creatingsustainable built environments by their ownnature.

tall buildings use land more efficiently.

Power in tall buildings can be served withshorter length of distribution lines than in low-rise complexes


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PROBLEMS IN TALL BUILDING

consume enormous amounts of energy to

operate


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DOUBLE SKIN FACADE

This research,

performed by Franklin

Andrews

double skin buildings

are able to reduce

energy consumption by

65%

running costs by 65%

and cut CO2 emissions

by 50%,

compared to advanced

single skin building.


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WHAT DOUBLE SKIN FACADE IS

a pair of glass skins

separated by an air corridor

The main layer of glass,

usually insulating, serves as

part of a conventionalstructural wall or a curtain

wall

the additional layer, usually

single glazing, is placedeither in front of or behind

the main glazing.

The layers make the air

space between them work to

the buildings advantageprimarily as insulation

against temperature

extremes and sound


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The Double Skin Faade Concept

Exterior Glazing

Interior glazing

The air cavity between

the two panes The interior window can

be opened by the user

Automatically

controlled solar shadingis integrated inside theair cavity


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MATERIAL CHOICE

For the internal skin

(faade):

For the external skin

(faade): toughened

(tempered) single pane.

laminated glass instead.


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ADVANTAGES

Lower construction cost

compared to solutions that can be

provided by

the use of electrochromic,

thermochromic or photochromicpanes

Reduced internal noise levels inside

an office building

Acoustic insulation

In principle, Double Skin Faades can save energy when

properly designed

The DSF around high rise buildings

can serve to reduce the effects of

wind pressure.

Low U-Value and g-value

are the low thermal transmission

(U-Value) and the low solar heat gain

coefficient (g value).

the glazed space of a DSF

may be used as a fire

escape.

Fire escape Reduction of the wind

pressure effects

Energy savings and reduced environmental

impacts


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BUILDING EXAMPLE

BML Headquarters BuildingDsseldorf city gate (Dsseldorfer

Stadttor)

(GSW) Headquarters

Post Office Tower


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CONCLUSION

Double Skin Faades for office buildings were

developed mostly in Europe in order to arrive

at increased transparency combining

acceptable indoor environment with reduced

energy use.


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REFERENCE

DOUBLE SKIN FACADE, LITERATURE REVIEW,HARRIS

SUSTAINABLE CONSTRUCTION, IMELDA AKMAL

SUSTAINABLE DESIGN OF TALL BUILDINGSTRUCTURES AND FACADES, Kyoung Sun MOONPh.D

Tall Buildings and Sustainability, FABER

MAUNSELL The Tectonics of the Double Skin: Green

Building or Just more Hi-Tech Hi-Jinx? TerriMeyer Boake

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double skin facade - presentation