1. Operable Louvres
Cross Ventilation
Roof Overhang
Retractable External Shading
Stack Ventilation
Maximised Indirect Daylighting
Zinc Cladding
High Thermal Mass
Solar PV Panels
High Performance Insulation
Extensive Green Roof
High Performance Triple Glazing
Sliding External Shutter
Trombe Wall
JAN
JUNE
±0.00
+2.65
+6.23
±0.00
+2.65
+6.23
±0.00
+2.65
+6.23
Views To Park Street
!
-1000
-800
-600
-400
-200
0
200
400
600
800
1000
1200
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Energy,kWh
Date
Annual Dwelling Energy Balance
Heat-Pump Solar Thermal Pump PV Generated
Lighting Appliances Net
4% 1%
-42%
11%
42%
Annual Energy Summary
Heat-Pump
Solar Thermal Pump
PV Generated
Lighting
Appliances
0
1
2
3
4
5
6
7
Living Areas Childrens
Bedroom
Ground
Bathroom
Office Master
Bedroom
Loft
DaylightFactor,%
Dwelling Daylight Factor
Annual House Average BS Average
0
200
400
600
800
1000
1200
1400
Living Areas Childrens
Bedroom
Ground
Bathroom
Office First
Bathroom
Master
Bedroom
Loft
Illuminance,lux
Average Lux Levels
21-Dec Average 21-Jun Average
!!!!
!
0 10 20 30 40 50 60 70 80 90 100
Iteration 1
Iteration 2
Iteration 3
Iteration 4
% Annual Days
ASHRAE 55 Adaptive Model Comfort Statistics
% days within
Adaptive Model 80%
Comfort Bounds
% days outside
Adaptive Model 80%
Comfort Bounds
0 10 20 30 40 50 60 70 80 90 100
Bedroom
Living
Office
Combined
% Annual Days
ASHRAE 55 Adaptive Model Comfort Statistics
% days within
Adaptive Model 80%
Comfort Bounds
% days outside
Adaptive Model 80%
Comfort Bounds
!
!
8
10
12
14
16
18
20
22
24
26
28
30
32
1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12
PrevalingMeanTemperature,ºC
Date
Modelling Iteration AnnualTemperatures
Iteration 4 Iteration 3 Iteration 2 Iteration 1 Comfort Bounds
Overheating Metrics
Illuminance Diagram (21st Dec) - Upper FloorIlluminance Diagram (21st Dec) - Ground Floor
THERMALMODELLINGITERATIONCOMFORTANALYSISFINALMODELCOMFORTBOUNDSDWELLINGENERGYANALYSISCOMPETITIONWEEKDAYLIGHTANALYSIS
Daylight factors for each room meet
and exceed British Standard averages,
allowing decreased dependence on
artificial lighting systems.
12Room
pm
!
! !
20.0
20.5
21.0
21.5
22.0
22.5
23.0
23.5
24.0
24.5
25.0
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
6:00
12:00
18:00
0:00
10-6 10-7 10-8 10-9 10-10 10-11 10-12
Dry-BulbTemperature,ºC
Date
Competition WeekTemperature Profiles
Living Room Bedrooms Office Average
0
10
20
30
40
50
60
70
80
90
100
>21.00 to <=22.00 >22.00 to <=23.00 >23.00 to <=24.00 >24.00 to <=25.00
Hours,%
Temperature Ranges, ºC
Competition WeekTemperature Ranges
Living Room Bedroom Office Average
10
12
14
16
18
20
22
24
26
28
30
1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12
Temperature,ºC
Date
ASHRAE 55 Adaptive Comfort Model
Air temperature °C ASHRAE 55 Adaptive Model Comfort Bounds
MSc Environmental Design and Engineering
Building Solar Design Project – BENVGEE3
UCL Institute for Environmental Design and Engineering
Annual temperature profiles show
improvements with each modelling
iteration.The extreme variation in
Washington’s climate conditions
meant our dwelling had to be
designed to counteract extremely
low temperatures in the winter whilst
preventing overheating in the summer.
The final thermal model shows an
internal temperature range of 17–
27O
C, tempered from the external
temperature range of -16–37O
C
Thermal comfort improvements
established by the criteria set on ASHRAE
55.2013 Adaptive Model for free-running
naturally conditioned spaces show that
93% of all daily hours fall within the 80%
comfort bounds of the adaptive model.
Daily mean temperatures for the year
fall within the thermal comfort criteria
set by the ASHRAE adaptive model
for free-running naturally ventilated
buildings, based on the outdoor
prevailing mean temperature.
Net-zero energy is achieved by reduced
energy demands from passive heating
and cooling, efficient lighting systems,
and solar PV and hot water heating.
To assess the propensity of the dwelling
to overheat in the summer, the CIBSE
TM52 overheating metrics were used as
a benchmark.
On average, the temperature profile
is within the competition week
comfort bounds 95% of all daily hours
between October 6 and October 12.
Temperatures outside the comfort
range are at a maximum of 1.25OC
outside the bounds.
High PerformanceThermal
Envelope with Small Ope ings to
East and West, and Medium Sized
Openings to North for Cross
Ventilation and Indirect Daylighting
Solid and Monolithic Architecture
Language
HighThermal Mass
Protective Skin
Open Plan/ Flexible Interior
Southfacing PV System
Southfacing Glazing andTrombe
Wall for Solar Heat Gain andViews
Timber Deck and Shading
(Overhang and Adjustable Shading)
LEGEND:
1 Lounge Nook
2 Dining Nook
3 Reading Nook
4 Climbing Wall
5 Play Nook
6 Writing Nook
7 Parents Nook
8 Kids Nooks
Vegetation on Roof and in
Courtyard
Modular Built-in Furniture
Flexible Wall Systems
Lightweight Upper Floor and
Playnet
TheThompsons
THE NOOKALEXANDER CLIGMAN-HOWE. NICOLE IGNACIO. KANCHANOK SUWANCHOTE. JULIANE WOLTER
±0.00
+2.65
+6.23
5
6
1
2
LIVING
KITCHEN
HALL
COURTYARD
ROBE
HWU
B
ENTRY
DECK
HALL/
GUEST
DECK
1 KIDS
ROOM
2
3
4
OFFICE
MASTER BED
KIDS
LOFT
GREEN ROOF
GREEN ROOF
5
6
7
8
8
4
LIVING
KITCHEN
HALL
COURTYARD
ROBE
HWU
B
ENTRY
DECK
HALL/
GUEST
DECK
1 KIDS
ROOM
2
3
4
OFFICE
MASTER BED
KIDS
LOFT
GREEN ROOF
GREEN ROOF
5
6
7
8
8
4
Location
The building is located on the southern side ofVan Ness
Street NW, and is surrounded by neighbouring residential
buildings on the east and west.The south features views to the
backyard, and undeveloped land adjacent to a church and a
large residential development.The west-east orientation ofVan
Ness Street NW provide ideal conditions for a passive design
approach.
Brief
The family was interested in a sustainably designed home that
would provide shelter as well as flexibility, as the needs of their
young family change over time. Scale and playful elements were
important to theThompsons – they wanted to ensure that
their young children would find spaces to play without feeling
overwhelmed by large, overwhelming rooms.The Nook was
born out of the design themes of flexibility and playfulness.
Design
The Nook features a solid, monolithic envelope which acts as
a protective shell against unwanted solar gains from the west
and east elevations, and from undesirable winds from the
northwest.While there are a limited number of small windows
on the east and west facade to provide natural daylighting
and to prevent overheating in summer, the north-facing
vertical windows are sized to maximise indirect daylighting
and facilitate the building’s natural ventilation strategy.The
dwelling was designed with large south-facing glazing to capture
predominant southern winds for natural ventilation, passive
solar gains, natural daylight, and views to the backyard garden.
Despite the sharp and strong aesthetic provided by the
exterior monolithic façade, a softer, more informal and relaxed
lifestyle is encouraged by the open layout and the use of
timber, fabric, and concrete on all internal elements and the
southern timber roof extension.The layout has been designed
to focus on flexibility and adaptability of the living spaces
during the day, passive heating and cooling throughout the
year, and as the family grows with the dwelling.Various cosy
nooks provide spaces for rest, play and privacy for the family.
Movable wall systems increase the flexibility of room use.
is a passively heated and cooled
net-zero energy home, with solar PV panels and evacuated
tubes for domestic hot water providing enough electrical
and thermal energy to offset the dwelling’s annual plug loads
and domestic hot water demands.A monitoring system
will be installed to measure the use of electricity, as well as
temperature and humidity.
THE THOMPSONS
12Room
pm
GRANDPA TOMMY MOM DAD TAMMY
in
the bedrooms
0.1
which includes
office+living room
in
the bedrooms
0.1
which includes
office+living room
in
the bedrooms
0.1
which includes
office+living room
in
the bedrooms
0.1
which includes
office+living room
1
2
6
5
THE NOOK
Roof
Standing Seam Zinc Cladding
12mm Marine Grade Plywood
30x50mmTimber Battens
Breathable Membrane
220mm PIR Insulation
Vapour Barrier
150mm Reinforced Concrete
External Wall
Standing Seam Zinc Cladding
12mm Marine Grade Plywood
30x50mmTimber Battens
Breathable Membrane
220mm PIR Insulation
Vapour Barrier
150mm Reinforced Concrete
HALL
HALL
Floor
200mm reinforced concrete
(polished)
Vapour barrier
200mm PIR Insulation
CROSS SECTION B
Roof
Standing Seam Zinc Cladding
12mm Marine Grade Plywood
30x50mmTimber Battens
Breathable Membrane
220mm PIR Insulation
Vapour Barrier
150mm Reinforced Concrete
External Wall
Standing Seam Zinc Cladding
12mm Marine Grade Plywood
30x50mmTimber Battens
Breathable Membrane
220mm PIR Insulation
Vapour Barrier
150mm Reinforced Concrete
HALL
HALL
Floor
200mm reinforced concrete
(polished)
Vapour barrier
200mm PIR Insulation
CROSS SECTION B
Floor
200mm reinforced concrete
(polished)
Vapour barrier
200mm PIR Insulation
Sun Path
21st Jun
Sun Path
21st Dec
Summer Wind 5.90 m/s
Winter Wind <8.50 m/s
ParkViews
Summer Wind 9.00 m/s
Winter Wind 9.00 m/s
Traffic Noise
Neighbour
Neighbour
Site Access
FIRST FLOOR PLAN 1:100
SITE PLAN / 1:500
OCCUPANCY SCHEDULE
EXPLODED AXONOMETRIC CONCEPT DIAGRAM GROUND FLOOR PLAN 1:100
STREETVIEW
SOUTH ELEVATION 1:100
DETAIL SECTION 1:20 GARDEN VIEW
ENVIRONMENTAL CONCEPT SECTION 1:50
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ANALYSISPROJECT DESCRIPTION
www.bartlett.ucl.ac.uk/iede @UCL_IEDE
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