Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Thematic group 5 :
Building Components(including windows and facades)
Peter WoutersBelgian Building Research Institute
EnerBuild workshopLyon –24 October 2002
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Research in the seventies till beginning of eighties
Energy use for heating in dwellings
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Thermal comfort in winterHeating energy
Thermal insulation
Optimisation challenge very simple...
Thermal
Comfort
Acoustical
Comfort
Air quality
Visual comfort
BUILDING
INSTALLATIONS
EN
ER
GY U
SER
S
Very important fo
r designing and
assessing (innovative)building envelopes
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Glazing Low heat losses Control of solar gains
useful in winter not desirable in summer
Contact with outside Minimisation of artificial
lighting No glare problems ...
Acoustics Additional concerns
Pre-heating ventilation air Maintenance Fire regulations esthetics ...
Costs
The availability of energy efficient technology is essential for improving the performances of the
building stock...
1 2
3 4
Innovative glazing systems
Evacuated glazingAerogel glazing
Also attention for source control
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Natural andartificiallighting
Crucial aspect in design concept
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Understanding control of innovative systems..
Intelligent control very im
portant!
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
In order to achieve quality,
it is not sufficient to have good technology
Architecture is also crucial...
CommerzbankFrankfurtNorman Foster
Ionica OfficesCambridge
PowergenCoventry
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Mat
eria
l tec
hnol
ogy
Projects Solar Power Envelope Durable peak performance evacuated glazing Dynamic building energy performance assessment Study and evaluation of integrated solar façade Insulating, light transmitting aerogel glazing Materials for healthy indoor spaces - MATHIS Solar building facades Design study of thermal diode wall Design of multi-functional ventilated façade Façade-roof integrated PV (Solar-Collect)
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Faça
de in
tegr
atio
nProjects
Solar Power Envelope Durable peak performance evacuated glazing Dynamic building energy performance assessment Study and evaluation of integrated solar façade Insulating, light transmitting aerogel glazing Materials for healthy indoor spaces - MATHIS Solar building facades Design study of thermal diode wall Design of multi-functional ventilated façade Façade-roof integrated PV (Solar-Collect)
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
A very important observation… For many technological areas, a wide offer of
energy efficient technology at competitive prices exist but limited use by market
Creating appropriate market conditions probably in many areas more important than developing new technologies
Member states
European Directives
Construction ProductDirective (1989)
Directive on Energy Performance (2002?)
Obligation to impose Energy Performance Regulation,
energy certification and inspections
CEN(common products)
EOTA(innovative products)
Obligation to express performances in line with
CEN and EOTA procedures
Missing procedures
Not sufficientlyrefined procedures
Almost no common proceduresat European level
Research at national level for
developing procedures
No incentive for industryfor product
optimisation
Intensive, but fragmented nationalresearch activities which result
in heterogenous market conditions
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Conclusions Major developments during 2 last decades
With respect to the needs Impressive development in technology
Integrated approach far from evident Indoor climate Energy use at micro- and macro-scale
Major challenge : Create appropriate assessment tools (including requirements
and implementation of legislation) A correct implementation of the EPD An attractive framework for stimulating innovation
