PASSIVE HOUSE
Commercial Buildings
Elrond Burrell
UK Registered Architect
Certified Passive House Designer
Board member Passive House Institute NZ
http://via-architecture.net
Overview
Beyond the House
Passive House Schools 1.0
Learning
Passive House Schools 2.0
Monitoring
Passive House Schools 3.0
Passive House University
Projects by
where Elrond Burrell was previously an associate
www.architype.co.uk
Chester Balmore (53 units)
Hereford Archive & Records
People Services Archive & Records
Keep Warm (Passivhaus) Keep Cool (Passive)
South North
123
Schools
Passive House Schools 1.0
Optimise the form
Understanding Form Factor
Optimise the form
Oakmeadow Primary School Bushbury Hills Primary School
How deep?
Single storey Two storey
14m deep
18m deep
22m deep
22mdeepfaceE/W
14m deep
18m deep
22m deep
22mdeep
faceE/W
Rational plan
Oakmeadow Primary School
Bushbury Hills Primary School
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
Rational section
Section: Oakmeadow Primary
Design out thermal bridges
Structural slab
Load
Insulation
Insulation
Structural slab
Load
Insulation
Insulation
Model + Test
Structural slab
Load
Insulation
Insulation
Structural slab
Load
Insulation
Insulation
Keep structure inside
. . . or outside
Design in airtightness
Optimise daylight & solar gain
Oakmeadow Primary School Bushbury Hills Primary School
. . . and ventilation
Simple secure night ventilation grilles Wolfgang loves it!
Reduce demand by design
Induction hobs &
low energy appliances
• reduce surplus heat
• reduce ventilation
• reduce PE
Collaborate
Across the whole team - consultants, specialists, client, contractor, and supply chain
Maintain design quality
No compromise of brief, client aspiration, architectural quality or sustainable materials
Bushbury Hills Primary School
Oakmeadow Primary School
Swillington Primary School
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
Learning from 1.0
Airtight detailing: architect
Airtight detailing: subcontractor
Timber frame
Airtight detailing: on site
Airtight detailing: on site
Windows
MVHR & duct routes
Fresh air supplied to all main rooms
MVHR
MVHR & duct routes
Cascade & simplified extract (even shorter routes)
MVHR
Windows & curtain walling
Clerestory windows, not curtain walling
Actuators mounted on windows
Only on high level windows
= significantly less actuators
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
From standard uninsulated sprinkler pump housing to super-insulated pumphaus
Sprinkler pumphouse
Great daylighting compromised by over complicated controls
Lighting controls
Users and maintenance teams engage with a Passivhaus school
Operations & maintenance
One gas boiler is more than enough
Heating
Heating via kiddywatts
User “how-to” guides
Passive House Schools 2.0
Wilkinson Primary School
Ground Floor
First Floor
Sections
Just 1 boiler!
Monitoring
Monitoring method & studied parameters
4 Oak Meadow 2011
5 Bushbury Hill 2011
6 Wilkinson 2013
Monitored Primary Schools
Passivhaus schools
Non-Passivhaus schools
1 Much Birch 1970
2 St Luke’s 2009
3 Willows 2010
4 Oak Meadow 2011
5 Bushbury Hill 2011
6 Wilkinson 2013
Monitored Primary Schools
Passivhaus schools
Non-Passivhaus schools
1 Much Birch 1970
2 St Luke’s 2009
3 Willows 2010
4 Oak Meadow 2011
5 Bushbury Hill 2011
6 Wilkinson 2013
Monitored Primary Schools
Passivhaus schools
Non-Passivhaus schools
1 Much Birch 1970
2 St Luke’s 2009
3 Willows 2010
4 Oak Meadow 2011
5 Bushbury Hill 2011
6 Wilkinson 2013
Monitored Primary Schools
Passivhaus schools
Non-Passivhaus schools
1 Much Birch 1970
2 St Luke’s 2009
3 Willows 2010
4 Oak Meadow 2011
5 Bushbury Hill 2011
6 Wilkinson 2013
Monitored Primary Schools
Passivhaus schools
Non-Passivhaus schools
1 Much Birch 1970
2 St Luke’s 2009
3 Willows 2010
4 Oak Meadow 2011
5 Bushbury Hill 2011
6 Wilkinson 2013
Monitored Primary Schools
Passivhaus schools
Non-Passivhaus schools
1 Much Birch 1970
2 St Luke’s 2009
3 Willows 2010
Energy consumption
Note:
Gas / Biomass boilers supply both heating and hot water, except some localised
electric water heating
150
100
50
0
Total thermal
energy consumed
kWh/m2 TFA p.a.
[All included:
not just heating]
Gas
Biomass
2013 2014
Wilkinson
2nd generation
PH / 2013
11
2013 2014
Bushbury Hill
1st generation
PH / 2011
3733
Oak Meadow
1st generation
PH / 2011
2013 2014
28 29
2013 2014
Willows
pre-PH / 2010
St Luke’s
pre-PH / 2009
5253
2013 2014
30
107 117
9
28
17
Monitoring Energy Use / Heating & hot water
kWh/sqm/year
0
20
40
60
80
100
120
140
160
180
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
90+%reduction
Monitored thermal energy consumption vs UK Benchmarks
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
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
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
Indoor Environment / Indoor Air Quality / Winter
Indoor Environment / Indoor Air Quality / Winter
Indoor Environment / Indoor Air Quality / Winter
Indoor Environment / Indoor Air Quality / Winter
CO2 concentrations typical winter day
Indoor Environment / Indoor Air Quality / Summer
Indoor Environment / Indoor Air Quality / Summer
Indoor Environment / Indoor Air Quality / Summer
CO2 concentrations in occupied hours by season
Thermal Conditions in Winter
Thermal comfort
Has an effect on energy consumption
UK Guidelines
In education spaces air temperature should remain
between 19 °C and 23 °C
Indoor Environment / Thermal comfort / Winter
Indoor Environment / Thermal comfort / Winter
Indoor Environment / Thermal comfort / Winter
Indoor Environment / Thermal comfort / Winter
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
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
Indoor Environment / Thermal comfort / Summer
Indoor Environment / Thermal comfort / Summer
Indoor Environment / Thermal comfort / Summer
Indoor Environment / Thermal comfort / Summer
Passive House Schools 3.0
. . . more simplification, especially controls
Burry Port Community Primary
No BMS - all manual controls
Trimsaran Primary School
BMS for monitoring only
Glazing further simplified
Timber frame detailing standardised
Ground Floor
First Floor
Passive House University
The Enterprise Centre
University of East Anglia
“Exemplary Low Carbon Building”
Passivhaus
BREEAM outstanding
Sketch Aerial Perspective from South West
Future Phase
Earlham Hall
Enterprise
Centre
Ground Floor
First Floor
Embodied carbon
Low embodied carbon
Embodied carbon by element
Lifecycle carbon by element
EG. Floor construction
Competition proposal
Revised proposal (built)
Lifecycle carbon (cumulative)
University Benchmark
The Enterprise Centre
70+%reduction
Future climate analysis
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
+ 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
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
Measured primary energy
(to 14 December 2015)
Total energy use
(to 14 December 2015)
Conclusion
Passive House Delivers
For all building types –
Ø Low Energy
Ø High Comfort & Health
Ø Quality Assurance
+ 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
Thank you for listening
via-architecture.net

Passive House Commercial Buildings (Schools)

  • 1.
  • 2.
    Elrond Burrell UK RegisteredArchitect Certified Passive House Designer Board member Passive House Institute NZ http://via-architecture.net
  • 3.
    Overview Beyond the House PassiveHouse Schools 1.0 Learning Passive House Schools 2.0 Monitoring Passive House Schools 3.0 Passive House University
  • 4.
    Projects by where ElrondBurrell was previously an associate www.architype.co.uk
  • 5.
  • 9.
  • 10.
    People Services Archive& Records Keep Warm (Passivhaus) Keep Cool (Passive) South North
  • 14.
  • 15.
  • 17.
  • 18.
  • 19.
  • 21.
    Optimise the form OakmeadowPrimary School Bushbury Hills Primary School
  • 22.
    How deep? Single storeyTwo storey 14m deep 18m deep 22m deep 22mdeepfaceE/W 14m deep 18m deep 22m deep 22mdeep faceE/W
  • 23.
  • 24.
  • 25.
    GROUND FLOOR Total GrossInternal 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
  • 26.
  • 27.
    Design out thermalbridges Structural slab Load Insulation Insulation Structural slab Load Insulation Insulation
  • 28.
    Model + Test Structuralslab Load Insulation Insulation Structural slab Load Insulation Insulation
  • 29.
  • 30.
    . . .or outside
  • 31.
  • 32.
    Optimise daylight &solar gain Oakmeadow Primary School Bushbury Hills Primary School
  • 33.
    . . .and ventilation Simple secure night ventilation grilles Wolfgang loves it!
  • 34.
    Reduce demand bydesign Induction hobs & low energy appliances • reduce surplus heat • reduce ventilation • reduce PE
  • 35.
    Collaborate Across the wholeteam - consultants, specialists, client, contractor, and supply chain
  • 36.
    Maintain design quality Nocompromise of brief, client aspiration, architectural quality or sustainable materials Bushbury Hills Primary School
  • 40.
  • 43.
  • 45.
    Client Outcomes “We feelthat 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
  • 46.
  • 47.
  • 48.
  • 49.
  • 50.
  • 51.
    MVHR & ductroutes Fresh air supplied to all main rooms MVHR
  • 52.
    MVHR & ductroutes Cascade & simplified extract (even shorter routes) MVHR
  • 53.
    Windows & curtainwalling Clerestory windows, not curtain walling Actuators mounted on windows Only on high level windows = significantly less actuators
  • 54.
    Bushbury Hill PrimarySchool 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
  • 55.
    From standard uninsulatedsprinkler pump housing to super-insulated pumphaus Sprinkler pumphouse
  • 56.
    Great daylighting compromisedby over complicated controls Lighting controls
  • 57.
    Users and maintenanceteams engage with a Passivhaus school Operations & maintenance
  • 58.
    One gas boileris more than enough Heating
  • 59.
  • 60.
  • 61.
  • 62.
  • 63.
  • 64.
  • 65.
  • 70.
  • 71.
  • 72.
    Monitoring method &studied parameters
  • 73.
    4 Oak Meadow2011 5 Bushbury Hill 2011 6 Wilkinson 2013 Monitored Primary Schools Passivhaus schools Non-Passivhaus schools 1 Much Birch 1970 2 St Luke’s 2009 3 Willows 2010
  • 74.
    4 Oak Meadow2011 5 Bushbury Hill 2011 6 Wilkinson 2013 Monitored Primary Schools Passivhaus schools Non-Passivhaus schools 1 Much Birch 1970 2 St Luke’s 2009 3 Willows 2010
  • 75.
    4 Oak Meadow2011 5 Bushbury Hill 2011 6 Wilkinson 2013 Monitored Primary Schools Passivhaus schools Non-Passivhaus schools 1 Much Birch 1970 2 St Luke’s 2009 3 Willows 2010
  • 76.
    4 Oak Meadow2011 5 Bushbury Hill 2011 6 Wilkinson 2013 Monitored Primary Schools Passivhaus schools Non-Passivhaus schools 1 Much Birch 1970 2 St Luke’s 2009 3 Willows 2010
  • 77.
    4 Oak Meadow2011 5 Bushbury Hill 2011 6 Wilkinson 2013 Monitored Primary Schools Passivhaus schools Non-Passivhaus schools 1 Much Birch 1970 2 St Luke’s 2009 3 Willows 2010
  • 78.
    4 Oak Meadow2011 5 Bushbury Hill 2011 6 Wilkinson 2013 Monitored Primary Schools Passivhaus schools Non-Passivhaus schools 1 Much Birch 1970 2 St Luke’s 2009 3 Willows 2010
  • 79.
    Energy consumption Note: Gas /Biomass boilers supply both heating and hot water, except some localised electric water heating
  • 80.
    150 100 50 0 Total thermal energy consumed kWh/m2TFA p.a. [All included: not just heating] Gas Biomass 2013 2014 Wilkinson 2nd generation PH / 2013 11 2013 2014 Bushbury Hill 1st generation PH / 2011 3733 Oak Meadow 1st generation PH / 2011 2013 2014 28 29 2013 2014 Willows pre-PH / 2010 St Luke’s pre-PH / 2009 5253 2013 2014 30 107 117 9 28 17 Monitoring Energy Use / Heating & hot water
  • 81.
    kWh/sqm/year 0 20 40 60 80 100 120 140 160 180 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 90+%reduction Monitored thermal energy consumption vs UK Benchmarks
  • 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 CO2levels? 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 forclassrooms Absolute maximum 5000 ppm Average should not exceed 1500 ppm Occupants should be able to reduce to below 1000 ppm at any point
  • 85.
    Indoor Environment /Indoor Air Quality / Winter
  • 86.
    Indoor Environment /Indoor Air Quality / Winter
  • 87.
    Indoor Environment /Indoor Air Quality / Winter
  • 88.
    Indoor Environment /Indoor Air Quality / Winter
  • 89.
  • 90.
    Indoor Environment /Indoor Air Quality / Summer
  • 91.
    Indoor Environment /Indoor Air Quality / Summer
  • 92.
    Indoor Environment /Indoor Air Quality / Summer
  • 93.
    CO2 concentrations inoccupied hours by season
  • 94.
    Thermal Conditions inWinter Thermal comfort Has an effect on energy consumption
  • 95.
    UK Guidelines In educationspaces air temperature should remain between 19 °C and 23 °C
  • 96.
    Indoor Environment /Thermal comfort / Winter
  • 97.
    Indoor Environment /Thermal comfort / Winter
  • 98.
    Indoor Environment /Thermal comfort / Winter
  • 99.
    Indoor Environment /Thermal comfort / Winter
  • 100.
    Thermal Conditions inSummer? 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 forclassrooms 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
  • 102.
    Indoor Environment /Thermal comfort / Summer
  • 103.
    Indoor Environment /Thermal comfort / Summer
  • 104.
    Indoor Environment /Thermal comfort / Summer
  • 105.
    Indoor Environment /Thermal comfort / Summer
  • 106.
    Passive House Schools3.0 . . . more simplification, especially controls
  • 107.
    Burry Port CommunityPrimary No BMS - all manual controls
  • 110.
    Trimsaran Primary School BMSfor monitoring only Glazing further simplified Timber frame detailing standardised
  • 111.
  • 112.
  • 115.
  • 116.
    The Enterprise Centre Universityof East Anglia “Exemplary Low Carbon Building” Passivhaus BREEAM outstanding
  • 119.
    Sketch Aerial Perspectivefrom South West Future Phase Earlham Hall Enterprise Centre
  • 121.
  • 122.
  • 124.
  • 125.
  • 126.
  • 127.
    Lifecycle carbon byelement EG. Floor construction Competition proposal Revised proposal (built)
  • 128.
    Lifecycle carbon (cumulative) UniversityBenchmark The Enterprise Centre 70+%reduction
  • 130.
  • 131.
    Future climate coolinganalysis 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 embodiedcarbon 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
  • 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
  • 135.
    Measured primary energy (to14 December 2015)
  • 136.
    Total energy use (to14 December 2015)
  • 139.
  • 140.
    Passive House Delivers Forall building types – Ø Low Energy Ø High Comfort & Health Ø Quality Assurance
  • 141.
    + Happy Clients ResidentialPassive 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
  • 142.
    Thank you forlistening via-architecture.net