First part:  Main facts  grounding  recycling of construction materials  heat regulation: ◦ arrangement of buildings ◦ platforms for every building 7m above the ground ◦ reflective facades ◦ wind tower ◦ low percentage of window areas Second part:  water consumption/seawater desalination  transport  energy generation: ◦ solar modules on every roof ◦ photovoltaic power plant 10MW next to Masdar ◦ solar heat power plant 100KW (project of university) ◦ "Shams I“ - world biggest solar heat power plant, 100MW, in the dessert of Abu Dhabi  saving energy

Main facts

 located in the dessert of Abu Dhabi

 planned population: people  planned dimension: 6 sq km  start of construction: 2008  planned completion: 2025  main contractor: Sir Norman Foster architect's office

 ecological city  recycling of entire waste  energy supply via sun energy  low water and energy consumption  innovative transport systems  innovative heat regulation

Grounding

sandy ground with with embedded salt water: ◦ foundations would slip away ◦ saltwater would destroy concrete

Solution: 20 meters deep pile foundation made of noncorroding concrete (concrete mixed with recycled discarded metal)

Recycling of construction materials

waste wood is processed to mulch: ◦ It gets sold to golf courses and communes ◦ reduces evaporation of water from the ground

 100% of the steel scrap gets sold an recycled

 In Masdar is only recycled steel obstructed  96% of the constrution waste is reused  Recycling plant is only 100 meters off to construction area to save fuel

Heat regulation

 Buildings are aligned to north-west – so the shamal (wind) can blow through the city

 All buildings are on a platform 7m above the ground for a better circulation of air

 Buildings are very close to each other to cast shadow in the streets

 Facade elements are made of concrete with sand from the dessert (sustainability) and glass fiber (for more fracture strength)

 Facades with low amount (30%) of window areas

 Window areas with individual lamellas for heat regulation (software analysis of solar irradiation of every facade -> developing individual concept for lamellas for every facade)

Outer skin panels on facades for heat regulation

Three layers: ◦ Dotted plastic foil ◦ Air layer ◦ Reflector layer

 Functional principle: ◦ Sunbeams go through the plastic foil and the air layer ◦ Sunbeams get reflected to the street from the reflection layer ◦ Sunbeams get dispersed by the dotted plastic foil  Sunlight reaches the street  Heat is absorbed

Wind tower for heat regulation (traditional Arabic architecture )

Construction: ◦ 45m high steel frame made of recycled steel ◦ Three- cornered building area ◦ Internal tube made of synthetics ◦ The skin in the upper region is formed of lamellas/blade s ◦ Weather station on top of the tower ◦ Fine Water nozzles in the inner side on top of the tube

 Weather station determines wind direction

◦ The lamellas on two sides are closed, while one side is opened depending on the wind direction ◦ Air streams into the tower

◦ Air gets cooled down by fine water nozzles before streaming into the tube (evaporative cooling) ◦ Traditionally housewives hang the washing on that position ◦ Cooled down air reaches the street on the bottom side of the tower

Offset Temperature – Abu Dhabi and Masdar

◦ Abu Dhabi: 39°C feel like 52°C

◦ Same Day in Masdar City: 39°C feel like 37°C