ECO-Life in Belgium - ECO

ECO-Life in Belgium
Eline Himpe (PhD-student)
Kick starting Green Transition in European Cities Conference, Høje-Taastrup (DK), 29-30 October 2015
Faculty of Engineering & Architecture - Research group of Building Physics, Construction and Services
Core Project Partners
Social Housing Company
Architecture & Engineering
Advice & Monitoring
Partners
evr-architects – Abscis architects
E-ster Engineering – Ingenium Engineering
City of Kortrijk
VENNING
GUTENBERG
POTTENBAKKERSHOEK
DRIE HOFSTEDEN
SOCIAL HOUSING ESTATE OF 1500 DWELLINGS IN KORTRIJK
VENNING NEIGHBOURHOOD: 196 DWELLINGS
(MULTI-FAMILY & SINGLE-FAMILY, NEW & REFURBISHED)
POTTENBAKKERSHOEK: 23 NEW APARTMENTS
GUTENBERG: 21 NEW APARTMENTS
DRIE HOFSTEDEN: 34 REFURBISHED APARTMENTS
OBJECTIVES…
Sustainable
Zero-Carbon
Quality of Life
OBJECTIVES → APPROACH: TOOLS
Sustainable → Monitor for Sustainable Social Housing
Zero-Carbon → Clear Definition / Framework
Quality of Life → Occupants Engagement
+ Financial feasibility
OBJECTIVES → APPROACH: CONTINUOUS INTEGRATION
Concept
Design
Construction
In-Use
…
Sustainable → Monitor for Sustainable Social Housing
Zero-Carbon → Clear Definition / Framework
Quality of Life → Occupants Engagement
+ Financial feasibility
Sustainable → Monitor for Sustainable Social Housing
Zero-Carbon → Clear Definition
Quality of Life → Occupants Engagement
MONITOR FOR SUSTAINABLE SOCIAL HOUSING PROJECTS
MONITOR FOR SUSTAINABLE SOCIAL HOUSING PROJECTS
CHALLENGE: RECONCILING CONFLICTING VALUES
Energy (efficiency) ↔ Resources / Waste (materials)
Sustainable planning (orientation…), Quality of Life (floor area…)
Refurbishment or Demolition?
CHALLENGE: RECONCILING CONFLICTING VALUES
Density ↔ Quality of Life
Natural Environment ↔ Water ↔ Mobility
Outdoor space: Private - Semi-Public - Public
Sustainable → Monitor for Sustainable Social Housing
Zero-Carbon → Clear Definition
Quality of Life → Occupants Engagement
Zero-Carbon? Zero-Energy? nZEB? Passive? Low-energy?
“Despite the excitement over the phrase “zero-energy”, we lack a
common definition, or even a common understanding, of what it means”
(Paul Torcellini)
ECO-LIFE DEFINITION: ZERO-CARBON DEVELOPMENTS
Yearly Balance
Demand
Household
Electricity
Embodied
Energy
Production
Ventilation Strategies in Venning neighbourhood
Heat recovery
Demand-controlled
simple exhaust
CHALLENGES: COLLECTIVE RES IN PRACTICE (IN BELGIUM)
Juridical: collective RES ↔ EPBD calculations
District heating
Collective PV (e.g. Multi-Family buildings)
Juridical: collective RES ↔ electricity grid manager
Financial: Investment Costs ↔ Returns
ENERGY PERFORMANCE: FROM THEORY TO REALITY
Monitoring
To optimise the operation
To evaluate the targets
VENNING 1: MONITORING THE FIRST YEAR OF OCCUPANCY
MONITORING… TO OPTIMISE THE OPERATION!
TEMPERATURE OF THE FLOWS
NEAR THE HEAT EXCHANGERS
Extract
B
Supply
Exhaust
Fresh
A
VENTILATION FLOW RATE MEASUREMENTS
CO2 MEASUREMENTS
1800
CO2
IDA 1
IDA 2
IDA 4
θ
Living room
1500
ΔC [ppm CO2]
IDA 3
1200
900
600
300
0
3/02/14
4/02/14
5/02/14
6/02/14
7/02/14
KEY MONITORING PARAMETERS FOR FAULT
DETECTION
MONITORING… TO EVALUATE THE TARGETS!
HEAT USE PER DWELLING
FOR SPACE HEATING AND DOMESTIC HOT WATER
140
100%
< Design
Actual Heat Use (kWh/m²/year)
120
< 2 x Design
> 2x Design
100
80
60
40
20
0
0
20
40
60
80
100
120
Normalised Design Heat Use (kWh/m²/year)
140
Total Heat Use
Actual Heat Use (kWh/m²/year)
VENNING BEFORE & AFTER ECO-LIFE
Normalised Design Heat use
(kWh/m²/year)
Sustainable → Monitor for Sustainable Social Housing
Zero-Carbon → Clear Definition
Quality of Life → Occupants Engagement
OCCUPANTS ENGAGEMENT
interaction in design phase
Information, guiding, energy feedback
Via meetings with occupants, surveys, letters, web tool…
CHALLENGES IN OCCUPANTS ENGAGEMENT
Moving occupants during construction works
(coördination, dwelling availability, occupants effort…)
Learn people how to use the buildings and systems
Make people aware about energy use
Management and Malfunctioning of a system
Individual control ↔ centralised operation
Three Objectives… One Approach… Different results
Sustainable → Monitor for Sustainable Social Housing
Zero-Carbon → Clear Definition
Quality of Life → Occupants Engagement
Tools provide a framework for decision-making
→ Read more in our ECO-Life Deliverables!
Thank You!
Contact: [email protected]