PRACTICAL TOOLS TO DESIGN LOW ENERGY BUILDINGS

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PRACTICAL TOOLS TO DESIGN LOW ENERGY BUILDINGS
LOCAL RENEWABLES FREIBURG 2007

• Alain GUIAVARCH

Center for Energy and Processes Ecole des Mines
de Paris
http//www.cep.ensmp.fr
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Introduction

• Centre for Energy and Processes (R. Gicquel / D.
  Clodic)
• Solar and green buildings (B. Peuportier)
• Development of professional design tools
• Thermal simulation ComfiePleiades
• Life cycle assessment EQUER
• Applications
• Design and monitoring of demonstration projects
• Assessment of innovative technologies
• Education

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 PleiadesComfie 

• Comfie Multizone dynamic thermal simulation of
  buildings
• Pleiades professional interface for Comfie
• (www.izuba.fr)
• ? software  PleiadesComfie 
• Input
• Geometry (2D/3D)
• Thermal zones
• Wall compositions
• Schedules
• Shadings

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 PleiadesComfie  

• Output
• Heating and cooling load
• Thermal comfort
• Indicators
• Curves
• Histograms

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 PleiadesComfie 

• User friendly interface, but
• A building project is modelled by a lot of
  parameters (thermal caracteristics, geometry,
  occupant behavior)
• The thermal zoning is necessarily defined by the
  user
• Orientation and usage of the room
• Purpose of the simulation
• The analysis of results need some preliminary
  knowledge
• Thermal losses, Discomfort rates
• training is useful
• Heat transfers, Solar energy, Energy balance
• Training session on the software

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Ecole des Mines (Paris)

• Ecole des Mines de Paris
• Old building (17th-18th cent.)
• 16 000 m²
• Class rooms, office rooms, library, restaurant,
  service rooms

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Ecole des Mines de Paris

• Ecole des Mines de Paris
• Modelling and simulation with ComfiePleiades
• Heating load 116 kWh/m²

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Passive house in France

• First commercialised passive house in France, 100
  km north of Paris (www.lesairelles.fr)
• Two attached dwelling units (130 m² each)
• Wood framed building
• Small heat pump
• Solar domestic hot water
• Efficient heat recovery ventilation system
• Earth to air heat exchanger

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Passive house in France

• Modelling and simulation with  ComfiePleiades 
• Results
• Heating load 7 kWh/m²
• Validation
• Monitoring within the next year

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Renewable and energy efficient systems

• Hearth tubes

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Renewable and energy efficient systems

• Solar Domestic hot water
• Photovoltaic
• Input
• Building wall
• Area of the PV collector

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Life cycle assessment of buildings

• Life cycle assessment simulation tool  EQUER 
• Inventories
• Energy and ressources
• Substances emitted in the air and water and
  created waste
• Environmental indicators
• Primary energy
• Greenhouse gases emissions
• Input
• Energy consumption of the building (heating,
  cooling, electricity)
• Building materials
• Transport
• Domestic Waste
• Water

PléiadesComfie
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Life cycle assessment of buildings

•  EQUER  - Output

 Ecologis  project
global warming
1
0,8
energy
other waste
0,6
0,4
0,2
EcoLogis
0
acidification
radioactive waste
Reference
smog
water
eutrophication
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Life cycle assessment of neighbourhoods

•  ARIADNE  life cycle assessment of
  neighbourhoods (European project
  http//www.eco-housing.org/)
• Building impacts
• Networks (drinking water, sewage)
• Open space (land use, lighting, waste)

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Educational project  TREES 
Renewable energy systems
Supported by

•  Training for Renovated
• Energy Efficient
• Social housing 
• Project duration Jan 2006 Dec 2007
• Project co-ordinated by ARMINES / ENSMP
• Contact bruno.peuportier_at_ensmp.fr
• Project web site http//www.cep.ensmp.fr/trees/
• Contract n EIE/05/110/SI2.420021 status June
  2006

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TREES Project Summary

• Develop educational material to be integrated in
  courses for architects and social housing
  managers
• Presentations and explanatory texts
• 1. techniques (insulation, glazing,
• solar systems, ventilation, equipment),
• 2. tools (energy calculation, sustainability
  assessment) and
• 3. case studies (demonstration projects, good
  practice examples)
• Review by potential users and test, feedback from
  workshops
• Disseminations activities (users club, web site)

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Further developments

• Scientific developments
• Develop the concept of the  Plus Energy
  Building 
• Integrate renewable and energy efficient systems
  (Heat pump, Micro-cogeneration)
• Engineering and software developments
• Develop the  integrated approach  thermal
  simulation Lighting economic analysis
• Improve the ability to help the designer in the
  preliminary phase of a project

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Thank you for your attention
LOCAL RENEWABLES FREIBURG 2007

• Alain GUIAVARCH

Center for Energy and Processes Ecole des Mines
de Paris
http//www.cep.ensmp.fr