Alraouf energy conservation presentation
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The Dilemma of Sustainable Architecture in Gulf Cities
Unsustainable Developments & Energy Conservation
Ali A. Alraouf, Ph.D.University of Bahrain, Faculty of Engineering
Dept. of Architecture
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Why energy is a World Challenge?
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Global Warming is Real
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In 2003, the hottest European summer on record claimed 35,000 lives
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In 2004, the US lived through its most costly hurricane season on record, with $42B in
hurricane-related damages
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The future? The Day After Tomorrow
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Transport
34%
Industry
22%
Energy Consumption in the UK by sector
Source: Energy Consumption in the UK, DTI
Buildings 44%
Industry 22%
Transport 34%
Energy Consumption in Building and construction Sector.
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Contemporary Understanding
Sustainable,Green,Smart,
Intelligent,or
Traditional Architecture:
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Towards a Definition of Smart Architecture: Smart, Intelligent or Sustainable.
I've never heard of a building with auto exposure before. Great idea! Looks like a lot of moving parts -- an engineering nightmare -- hope it doesn't break too often!
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Intelligent Architecture
IBM head office in Subang Jaya (Malaysia).Ken Yeang, architect
Bioclimatic city.Ken Yeang, architect
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Smart Traditional Precedents.“Treat the earth well. It was not
given to you by your parents. It was loaned to you by your children” Kenyan Proverb.
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The Intelligence of Appropriateness
"We seem to know the COST ofeverything and the VALUE of nothing." Oscar Wilde
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The Traditional Patterns of Smart Architecture
Yazd City, Iran
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Contemporary Regional Examples
Hassan Fathy in his studio
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Gulf Cities 21st Century Challenges.
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Istanbul
Cairo
Florence
Athens
World Traditional Cities
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Jeddah
Dubai Bahrain
Traditional Gulf Cities
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Los Angeles
Houston
Detroit
Phoenix
North American model – car dependent
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Dubaization Phenomenon
.
The Emergence of a New Urban Brand
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Energy Conservation & Built Environment
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Urban Growth & Resource Use
From 1900 to 2000 human numbers increased four fold – from 1.5 to 6 billion
Resource consumption and urban populations went up sixteen fold
Every year we burn at least one million year’s worth of fossil fuels
Cities, on 3-4% of the world’s land surface use 80% of its resources, and discharge most solid, liquid and gaseous waste
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Dynamics of Change
24
Increasing
Energy demandEnergy costsCO2 emissions Climate instability Sea levels
Decreasing
Fossil fuel reservesNatural resourcesTime left for action
Cost of renewable energy
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Suggested StrategiesNew Paradigm: New Concepts
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Transport Alternatives
The imperative of low carbon transport The potential of the ‘solar suburb’ The huge potential of hybrid technology Avoidance of unnecessary travel The importance of compact urban form Localisation and interconnection New emphasis on cycling and pedestrian
living
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1 2 3 4 5 6 7 8 9 10 11 12
45
40
35
30
25
20
15
10
5
0
For distances up to 0.7 km it is faster to walk than to go by car
For distances up to 4.6 km it is faster to cycle than to go by car
For distances up to 10 km, it is faster to go by underground than to go by car
Distance (km)
Tim
e
Source: J. Whitelegg, Transport for a Sustainable Future
Urban Distances
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Conserve Better Generate
•Solar technology can produce 200 times more energy per surface area than photo-synthesis.•Intra-urban: solar thermal, PV and CHP plus energy efficiency. •Suburban: turning the suburb into a solar power station.•Ex-urban: Large scale solar plus on- and off-shore wind farms.
Sustainable energy for cities
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Learning from Traditional Architecture and Urbanism.
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Notes on Architectural Education
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CONCLUDING REMARKSQUESTIONS, CRITICAL ISSUES & SUGGESTIONS
Gulf
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Pre
-2002
2002
2005
2011
2015
28% reduction?
25% reduction?
25% reduction?
EN
ER
GY
US
E
Staying ahead of the game
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Seven Areas of Sustainable Design
Site and Climatic
Response
Form and Massing
ExternalEnvelope
InternalEnvironment
EnvironmentalSystems
Energy andWater
Materials
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Thank You Ali A. Alraouf
Towards Smart,
& Appropriate Architecture & nUrbanism