A+G, Hanoi, Vietnam – 12 March 2014
Green Building
Prof. Andy van den Dobbelsteen, PhD MSc Department head of Architectural Engineering + Technology, Professor of Climate Design & Sustainability, Faculty of Architecture, Delft University of Technology – primary faculty advsior to the TU Delft Solar Decathlon 2014 team – Delft Energy Initiative (DEI) theme leader for the built environment – associated member of the Dutch Council of the Environment and Infrastructure (Rli)
Sustainable is everything future generations want to inherit, use and maintain. [J贸n Kristinsson]
Boundary conditions of the future
A. Climate change
adapt and prepare for extreme weather events
B. Scarcity of resources
use only materials from the circular economy
C. Depletion of fossil fuels
become independent from fossil energy
Approach: the New Stepped Strategy 0
standard building
1
reduce the demand – passive, smart & bioclimatic design
2
reuse waste flows – waste heat, waste water, waste material – in closed cycles
3a solve the remaining demand sustainably 3b residual waste = food
Vernacular bioclimatic design
Beautiful, authentic detailing
Vietnam is now looking for modern expressions of vernacular, bioclimatic principles
Smart & bioclimatic design A design approach that uses local characteristics intelligently into the sustainable design of buildings and the urban plans
Local characteristics, examples
Climatic features – climate type – seasonal changes – variations in the weather – diurnal differences
Natural circumstances – geomorphology – hydrology – ecology – natural landscape – soil and underground
Man-made interventions – cultural-historical landscape – technical elements – the built surroundings
Climate types
Understand the local climate solar course 13:40
ort n a ut p s ay Alw
lans p on w o r h ar
12:40
temperatures
wind
Climate change: know what is coming The Pliocene Paradox [Fedorov et al. 2006]
Cities in the Netherlands get a French climate
Queensland floods
Australia burns: 54 degrees expected
Passive climate design
Conference building, Salem (D)
Shelter is the basis
Thermal insulation to avoid transmission
Isomax.nl
Mass for stabilising the indoor climate
Beautiful daylight for free
Daylight access with solar shading Esplanade, Singapore
Avoiding up-heating: overhangs
Avoiding up-heating: tilted windows
Singapore
Avoiding up-heating: reflection 
Santorini (Thera)
Evaporative cooling Torino
CH2 building [MacDonald & Partners]
Cool(ing) umbrella Singapore
Wind for passive cooling
National Library of Singapore [Ken Yeang]
Thermal ventilation of termite mounds
Natural ventilation CH2 building, Melbourne
Sports hall, Odenwald (D)
Tracking the sun
An stepped approach to S&BCD
Bottom-line starting-points Study of natural circumstances Synthesis into boundary conditions Smart design
This will be exemplified by a case study of the Dutch chancellery in Canberra, Australia
Andy van den Dobbelsteen – Smart & Bioclimatic Design – SB08,
Canberra
Andy van den Dobbelsteen – Smart & Bioclimatic Design – SB08,
Local policy
Environmental laws Act Water, Think Water
Starting-point: the indoor climate
Ole Fanger
Adaptive thermal comfort Bigger margin Saving energy
Analysis of local characteristics (1a)
Climatic zones
Temperatures Humidity Precipitation
Analysis of local characteristics (1b) 
Underground
Analysis of local characteristics (2)
The sun
desired / undesired sunshine
Analysis of local characteristics (3)
Wind 9 AM
the desert
3 PM
the sea
Obstruction vs access to wind
Synthesis: boundary conditions (1) 
The urban plan
old chancellery
Synthesis: boundary conditions (2)
The building design – horizontal orientation (sun, wind, rain) – vertical positioning (in/on/above the ground) – using the underground (passively or actively) – building mass and insulation – internal zoning
stabilising the indoor climate, from passive to more active
Synthesis: boundary conditions (3)
The building envelope – The roof
– The facade
Design proposals
Smart & bioclimatic principles
Using as much from the local peculiarities as possible
Nothing more than an underlayment plan for the architect
Sketch of ideas
The architect got to a smart design
[Rudy Uytenhaak Architectuur]
‌ but eventually got back to our ideas
[Rudy Uytenhaak Architecture]
Bottom line: new buildings net zero energy
The real challenge: existing buildings Commercial Vacant offices Offices older than 15 years Industrial complexes Leisure Shopping streets Wellness centres Holiday homes Residential Gallery flats Tenement flats (‘portico flats’) Terraced houses (‘rowhouses’) Free-standing houses
The real challenge: existing buildings
The real challenge: existing buildings
This is the challenge in Holland
“Tenants into poverty due to energy use�
Solar Decathlon Europe 2014, Versailles
A new skin with sustainable technology
The Prêt-à-Loger home
The plan in real life – summer situation
The plan in real life – winter situation
Our submission to the Solar Decathlon
www.pretaloger.nl
We all need to become solar specialists!
Villa Flora, Venlo [Jon Kristinsson]
Villa Flora, Venlo
Key: fine wire heat exchangers
Cross-section
Parabolic roof shells
Functions: provision of electricity, heating, and cooling, collection of rainwater and condensation water
Office interior
Villa Flora – Holcon floor
Villa Flora – strong…
Villa Flora – flexible Villa Flora – Flexibility
The office
Performance of Villa Flora
All materials demountable and recyclable
No heat supply needed
No external electricity needed
All waste water recycled
No need of external supply of tap water (bar drinking water bottles)
Thank you!
a.a.j.f.vandendobbelsteen@tudelft.nl