Presentation for the Southern Sustainability Group in Wanaka, NZ, August 2017.
Presentation covered:
- Beyond the House
- Passive House Schools 1.0
- Learning
- Passive House Schools 2.0
- Monitoring
- Passive House Schools 3.0
- Passive House University
Note: projects presented are by Architype (UK) where Elrond Burrell was an associate prior to returning to NZ and setting up VIA architecture.
2. Elrond Burrell
UK Registered Architect
Certified Passive House Designer
Board member Passive House Institute NZ
http://via-architecture.net
3. Overview
Beyond the House
Passive House Schools 1.0
Learning
Passive House Schools 2.0
Monitoring
Passive House Schools 3.0
Passive House University
25. GROUND FLOOR
Total Gross Internal Area
1427.6 Sq m
CANOPY CANOPY
CANOPY CANOPY
NURSERY
TOILETS
RECEPTION
TOILETS
B
SHOWER TROLLEY Nom. 1950 x 750mm
A
B
C
A
C
KEY
TEACHING AREAS
STAFF AREAS
AUXILLARY AREAS
STORAGE
MULTI-USE AREAS
COMMUNITY FACILITIES
CIRCULATION
NURSERY
79.3m!
RECEPTION
PE. STORE
STAGE/
SPECIAL
STORE
9.8
CENTRAL
STOCK
ROOM
ACC.
TOILET
ACC.
TOILET
REPRO.
COMMU.
STORE
SPEC.
STORE
4.5
COMMUNITY
ROOM
YEAR 3 YEAR 4
YEAR 5YEAR 6
KITCHEN
SERVERY/
CHAIR
STORE
INTERVIEW
ROOM
8.3
GROUP ROOM
SENco
HYGIENE
ROOM
MAIN
HALL
YEAR 1 YEAR 2
KS2
BOYS
TOILETS
9.1
KS2
GIRLS
TOILETS
9.1
SPECIAL
STORE
12.5
GROUP
ROOM
KS1
BOYS
TOILETS
KS1
GIRLS
TOILETS
SOFT
READING
AREA
LIBRARY
AREA
ICT
AREA
PRACTICAL
AREA
FOOD
TECHNOLOGY
READING
AREA
OFFICE
DRY
STORE
TOILET
LOBBY
LOCKERS LOCKERS LOCKERS LOCKERS
LOCKERS LOCKERS
LOCKERS
STAFFROOM
FOOD PREP
STO.
1.1
GENERAL
OFFICE
SEN
THERAPY/
MI ROOM
HEAD
OFFICE/
MEETING
ROOM
MAIN
RECEPTION/
WAITING AREA
18.1
Possiblefuturefoldingpartition
LOBBY
6.7
OPENING
ROOF LIGHT
BARRIER
MATTING
WET
AREA
BARRIER
MATTING
WET
AREABARRIER
MATTING
WET
AREA
BARRIER
MATTING
WET
AREA
BARRIER
MATTINGWET
AREA
BARRIER
MATTING
WET
AREA
BARRIER
MATTING
WET
AREA
BARRIER
MATTING
WET
AREA
CANOPY
LOW LEVEL PARTITION
LOWLEVELPARTITION
2.2mFOLDINGPARTITION
2.2mFOLDINGPARTITION
BARRIER MATTING
BARRIER MATTING BARRIER MATTING
SERVER
LOCATION
(TBC)
CARETAKER/
CLEANER
STORE
LOCKERS
CLOAKS
CLOAKS
2.2mFOLDINGPARTITION
CIRCULATION
32.6
CIRCULATION
10.2
CIRCULATION
11.6
KEY STAGE 2
HUB SPACE
152.8
KEY STAGE 1
HUB SPACE
78.6
Possible Access Hatch
PLANT
ROOM
26.8
void
CIRCULATION
16.7
FIRST FLOOR
Total Gross Internal Area
44.3 Sq m
Swillington Primary School
45. Client Outcomes
“We feel that our children are more alert and attentive in lessons
due to the amount of daylight in classrooms and the fresh air
throughout the school. The fact that the new school is
built to passivhaus standards means that learning has
been enhanced. Our pupils are comfortable, secure and
stimulated by their new environment; hence they learn very
well!”
Sara Morris, Head Teacher, Oak Meadow Primary School
53. Windows & curtain walling
Clerestory windows, not curtain walling
Actuators mounted on windows
Only on high level windows
= significantly less actuators
54. Bushbury Hill Primary School
Figures are based first year readings.
Gas 21kWh/(m2.a)
Space heating*: 14kWh/(m2.a)
Hot water*: 7kWh/(m2.a)
Electric 55kWh/(m2.a)
Lighting: 12kWh/(m2.a)
Power & plant: 22kWh/(m2.a)
Kitchen: 7kWh/(m2.a)
Sprinklers: 14kWh/(m2.a)
Primary energy is higher than the
target 120 kWh/(m2.a)
Sprinklers = 38kWh/(m2.a) PE
Main success:
Kitchen energy & comfort
Main lessons:
Issues with automatic lighting
controls and sprinkler systems.
Sprinklers
82. kWh/sqm/year
0
50
100
150
200
250
2013
2014
2013
2014
2013
2014
2013
2014
2013
2014
CIBSE
CIBSE
TM46
BREEAM2Very2Good
BREEAM2Excellent
Passivhaus
Passivhaus
Passivhaus
Typical
Good2
pracGce
Median
Willows
St2Lukes
Oakmeadow
Bushbury
Wilkinson
Monitored total energy consumption vs UK Benchmarks
70+%reduction
83. Why monitor CO2 levels?
A good proxy of indoor air quality
Provides information on the ventilation rates
Affects learning and performance
Affects health, exposure to high concentration
associated with symptoms, eg headaches
84. UK regulations for classrooms
Absolute maximum 5000 ppm
Average should not exceed 1500 ppm
Occupants should be able to reduce to below
1000 ppm at any point
100. Thermal Conditions in Summer?
Future climate projections for the UK indicate longer
and more frequent hot spells and higher average
temperatures.
Overheating risk for all buildings is expected to
increase in the next decades
Guidelines are currently being reviewed & are bound
to become stricter, influenced by overheating risk
101. UK regulations for classrooms
Building Bulletin 101, 2006
Absolute maximum of 32 °C
The upper limit of 28° C should not be exceeded for
more than 120 occupied hours (75th percentile)
Aim for temperatures between 19 °C and 23 °C
131. Future climate cooling analysis
0.00
50.00
100.00
150.00
200.00
250.00
300.00
350.00
Base Case = 0.3
ACH nat vent, 0.3
ACH night purge, 1
ACH summer mech
boost, med/light
weight
Base case - summer
boost (no mech vent
in summer)
Base Case + 2 ACH
summer nat vent
Base Case +
Increased efficiency
cooling, COP 4
Base Case + 2
Massive surfaces
(walls)
Base Case + All
massive construction
Totalcarbonemissionsperm2to2100,kgCO2/m2
Total CO2 emissions over 87 yrs for different cooling
strategies
132. + Typical embodied carbon
0.00
100.00
200.00
300.00
400.00
500.00
600.00
700.00
800.00
900.00
Base Case = 0.3
ACH nat vent,
0.3 ACH night
purge, 1 ACH
summer mech
boost, med/light
weight
Base case -
summer boost
(no mech vent in
summer)
Base Case + 2
ACH summer
nat vent
Base Case +
Increased
efficiency
cooling, COP 4
Base Case + 2
Massive
surfaces (walls)
Base Case + All
massive
construction
Totalcarbonemissionsperm2to2100,kgCO2/m2
LCA CO2 emissions, operational & typical embodied, for
different cooling strategies
Net LCA carbon
Operational Carbon to
2100
133.
134. 6 Months operation
Electricity = 34,732.6 kwh
Heat (from district heating) = 11,228 kwh
Using current ‘recharge rates’ of £0.11297 per
kwh for elec and £0.02904 for heat the costs are
below…
Electricity = £3923.74
Heat = £326.06
140. Passive House Delivers
For all building types –
Ø Low Energy
Ø High Comfort & Health
Ø Quality Assurance
141. + Happy Clients
Residential Passive House:
We’ll never live in anything else
Passive House Social Housing:
No voids, no rent arrears, positive social
behavior, tenants can afford Xmas / Holiday
Commercial Passive House:
We’ll have another one, please