Toward a Zero Carbon Design Assignment II Environment II
New Design Concept • Design passively retains a stable indoor temperature. Reduced reliance on HVAC. • Based on precedent Michael Reynolds Earthship concept and National Wine Centre. 2m
N
• Rammed Earth stores a large amount of thermal mass which captures
and
re-distributes
heat to maintain a stable indoor temperature.
Key Ideas • Shading device blocks the summer sun and allows sun through in winter using angled louvres. • Water
is
managed
and
recycled. Green roof filters grey water and the shade harvests green water using downpipes. • High
thermal
mass
of
Earth
berm, green roof and rammed earth passively maintains thermal comfort within ASHRAE standards. • Incorporates recycled wood and aggregate. All Materials have low embodied energy.
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Existing Conditions
Existing Building • North facing structure with a Skillion Roof • Has a 48m2 footprint in the backyard of a Kensington garden home. • Glazing on north, south, east and west walls • To have an open living space with a kitchen, a semi-enclosed bedroom with a reading space, and a bathroom
Site and Conditions
New Design Concept
SITE PLAN
• Design passively retains a
Existing Building
stable indoor temperature. Reduced reliance on HVAC. • Based on precedent Michael Reynolds Earthship concept and National Wine Centre.
Bed and Breakfast 2m
• Rammed Earth stores a large
N
amount of thermal mass which captures
and
re-distributes
heat to maintain a stable indoor temperature. PERSPECTIVE NEW DESIGN
Key Ideas
• Mediterranean climate of hot
• Shading device blocks the
dry summers and mild wet
summer sun and allows sun
winters.
through in winter using angled
• Sustainable features need to be incorporated to reduce energy costs. • To be used as a bed and breakfast accomodation for two people. • 100% occupancy between 6pm and 9 am • 0% occupancy between 9 am and 6 pm • Heating and cooling is turned on for temperatures below 15 and
louvres. • Water
is
managed
and
recycled. Green roof filters grey water and the shade harvests green water using downpipes. • High
thermal
mass
of
Earth
berm, green roof and rammed earth passively maintains thermal comfort within ASHRAE standards. • Incorporates recycled wood and aggregate. All Materials have low embodied energy.
above 25 degrees
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Existing Conditions
Existing Building • North facing structure with a Skillion Roof • Has a 48m2 footprint in the backyard of a Kensington garden home. • Glazing on north, south, east and west walls • To have an open living space with a kitchen, a semi-enclosed bedroom with a reading space, and a bathroom
Site and Conditions
New Design Concept
SITE PLAN
• Design passively retains a
Existing Building
stable indoor temperature. Reduced reliance on HVAC. • Based on precedent Michael Reynolds Earthship concept and National Wine Centre.
Bed and Breakfast 2m
• Rammed Earth stores a large
N
amount of thermal mass which captures
and
re-distributes
heat to maintain a stable indoor temperature. PERSPECTIVE NEW DESIGN
Key Ideas
• Mediterranean climate of hot
• Shading device blocks the
dry summers and mild wet
summer sun and allows sun
winters.
through in winter using angled
• Sustainable features need to be incorporated to reduce energy costs. • To be used as a bed and breakfast accomodation for two people. • 100% occupancy between 6pm and 9 am • 0% occupancy between 9 am and 6 pm • Heating and cooling is turned on for temperatures below 15 and
louvres. • Water
is
managed
and
recycled. Green roof filters grey water and the shade harvests green water using downpipes. • High
thermal
mass
of
Earth
berm, green roof and rammed earth passively maintains thermal comfort within ASHRAE standards. • Incorporates recycled wood and aggregate. All Materials have low embodied energy.
above 25 degrees
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Construction IMPROVED
ORIGINAL
External Wall
mm
External Wall
Rammed Earth
200
Steel Cladding
Insulation Rammed Earth
50 200
Roof Soil
North Elevation mm
90
Plasterboard
10 1
Roof 200 20
Insulation
140
Membrane
10
Plasterboard
100
100
Timber Batten
10
Plasterbard
Floor
Chipboard Flooring
20
Cavity
50
Insulation Rammed Earth
Cavity Float Glass
100 50 100
West Elevation
Plasterboard
10
Cavity
70
Plasterboard
10
Windows 6
Green Roof Section
Float Glass
East Elevation
6
Reduced glazing on west and east walls.
Door 30
Timber Board
1. Small plants 2. Soil 3. Sand and Membrane 4. Concrete and Plasterboard
1
6
12
Door Timber Board
Concrete
Internal Walls
Windows Float Glass
3
100
100
Internal Walls Rammed Earth
2
10
Floor
Concrete
1. New Shade Structure 2. Rammed Earth Wall 3. Green Roof
3
Steel
Sand Cast Concrete
on west and east walls.
3
Insulation
House Section
Maintains glazing on north wall for views Reduced glazing
30
Materials • New materials have high thermal mass which captures and redistributes heat. • Wood, and concrete aggregate are assumed to be recycled. • Locally sourced soil is used for the earth berm, roof garden, and rammed earth walls.
Rammed Earth Walls • High thermal mass. Thickness and density reduces transmission of heat. • Fireproof, durable, and loadbearing. • Earth is locally sourced from the site. • Reduces noise transmission from nearby main road.
Earth Berm
2
Conducts stable earth temp all year round
3
1m
N
4
Green Roof and Earth Berm • Uses earth as a natural insulator to maintain a stable temperature. • Green roof provides habitat for wildlife and will be the main rainwater collection point. • Reduces noise transmission from nearby main road.
Glazing • Double Glazing provides added thermal resistance. • Reduced glazing area by 67% to minimize heat loss • Angled louvres shade windows in summer and allow sun through in winter.
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Construction IMPROVED
ORIGINAL
External Wall
mm
External Wall
Rammed Earth
200
Steel Cladding
Insulation Rammed Earth
50 200
Roof Soil
North Elevation mm
90
Plasterboard
10 1
Roof 200 20
Insulation
140
Membrane
10
Plasterboard
100
100
Timber Batten
10
Plasterbard
Floor
Chipboard Flooring
20
Cavity
50
Insulation Rammed Earth
Cavity Float Glass
100 50 100
West Elevation
Plasterboard
10
Cavity
70
Plasterboard
10
Windows 6
Green Roof Section
Float Glass
East Elevation
6
Reduced glazing on west and east walls.
Door 30
Timber Board
1. Small plants 2. Soil 3. Sand and Membrane 4. Concrete and Plasterboard
1
6
12
Door Timber Board
Concrete
Internal Walls
Windows Float Glass
3
100
100
Internal Walls Rammed Earth
2
10
Floor
Concrete
1. New Shade Structure 2. Rammed Earth Wall 3. Green Roof
3
Steel
Sand Cast Concrete
on west and east walls.
3
Insulation
House Section
Maintains glazing on north wall for views Reduced glazing
30
Materials • New materials have high thermal mass which captures and redistributes heat. • Wood, and concrete aggregate are assumed to be recycled. • Locally sourced soil is used for the earth berm, roof garden, and rammed earth walls.
Rammed Earth Walls • High thermal mass. Thickness and density reduces transmission of heat. • Fireproof, durable, and loadbearing. • Earth is locally sourced from the site. • Reduces noise transmission from nearby main road.
Earth Berm
2
Conducts stable earth temp all year round
3
1m
N
4
Green Roof and Earth Berm • Uses earth as a natural insulator to maintain a stable temperature. • Green roof provides habitat for wildlife and will be the main rainwater collection point. • Reduces noise transmission from nearby main road.
Glazing • Double Glazing provides added thermal resistance. • Reduced glazing area by 67% to minimize heat loss • Angled louvres shade windows in summer and allow sun through in winter.
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Energy Overview
Annual Energy Usage
for 1 year with heating and cooling on. (gas
system)
turned
on
for
• Cooling (electricity system) turned on for temperatures above 25 degrees.
Performance Summary • Improved building used 124 MJ/m2 (5 star energy rating) • Original building used 502.5 MJ/m2 (0.5 star
MWh
temperatures below 15 degrees.
Annual Energy Usage
Heating 1.4 Mwh
Cooling 0.24 Mwh
1.4
1.4
1.3
1.3
1.2
1.2
1.0
1.0
0.9
0.9
0.8
0.8
0.7
0.7
MWh
• Base case and improved building simulated • Heating
ORIGINAL (heating cooling)
IMPROVED (heating cooling)
0.6
0.5
0.4
0.4
0.3
0.3
0.2
0.2
0.1
0.1 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
Jan
Feb
than the orignal design.
IMPROVED
• Embodied
energy
of
rammed
earth
• Rammed Earth constructions can exceed the calculated 40 year life span. • Embodied energy may be lower than the calculated value as it does not consider the use of recycled aggregate and wood
Jun
Jul
Month
Aug
Sep
Oct
Nov
ORIGINAL
Annual
(MJ)
Heating Cooling Total Per M2 Life Cycle Energy 40 Years
Annual
(MJ)
893
Heating
4,320
5,062
Cooling
19,800
5,954 MJ 124 MJ/M2 561,356 MJ
Total Per M2 Life Cycle Energy 40 Years
Dec
ORIGINAL
IMPROVED (MJ)
construction is nearly a third of the original design.
May
Embodied Energy
• Improved design maintains a stable indoor heating and cooling.
Apr
Life Cycle Energy
• Life cycle energy (40 years) is four times lower
temperature and reduces the reliance on
Mar
Month
energy rating)
Heating 5.5 Mwh
0.6
0.5
0.0
Cooling 1.2 Mwh
24,120 MJ 502.5 MJ/M2 1,940,738 MJ
External Wall
17%
55,811
Roof
25%
80,685
Floor
21%
68,241
Internal Partition
5%
17,206
Windows
6%
17,846
Doors
0.2%
565
Fitments
14%
45,820
Plumbing
10%
30,386
Drains
1%
4264
Wiring
1%
2423
Total
323,156 MJ
Per M2
6.73 GJ/m2
(MJ) External Wall
28%
273,300
Roof
28%
268,477
Floor
3%
26,496
Internal Partition
0.2%
4,190
Windows
33%
320,018
0.06%
565
Fitments
5%
45,820
Plumbing
3%
30,386
Drains
0.5%
4264
Wiring
0.3%
2423
Doors
Total
Per M2
Name: Brian Wilson ID: a1686992 Tutor Group: 4
975,938 MJ
20.33 GJ/m2
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Energy Overview
Annual Energy Usage
for 1 year with heating and cooling on. (gas
system)
turned
on
for
• Cooling (electricity system) turned on for temperatures above 25 degrees.
Performance Summary • Improved building used 124 MJ/m2 (5 star energy rating) • Original building used 502.5 MJ/m2 (0.5 star
MWh
temperatures below 15 degrees.
Annual Energy Usage
Heating 1.4 Mwh
Cooling 0.24 Mwh
1.4
1.4
1.3
1.3
1.2
1.2
1.0
1.0
0.9
0.9
0.8
0.8
0.7
0.7
MWh
• Base case and improved building simulated • Heating
ORIGINAL (heating cooling)
IMPROVED (heating cooling)
0.6
0.5
0.4
0.4
0.3
0.3
0.2
0.2
0.1
0.1 Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
Jan
Feb
than the orignal design.
IMPROVED
• Embodied
energy
of
rammed
earth
• Rammed Earth constructions can exceed the calculated 40 year life span. • Embodied energy may be lower than the calculated value as it does not consider the use of recycled aggregate and wood
Jun
Jul
Month
Aug
Sep
Oct
Nov
ORIGINAL
Annual
(MJ)
Heating Cooling Total Per M2 Life Cycle Energy 40 Years
Annual
(MJ)
893
Heating
4,320
5,062
Cooling
19,800
5,954 MJ 124 MJ/M2 561,356 MJ
Total Per M2 Life Cycle Energy 40 Years
Dec
ORIGINAL
IMPROVED (MJ)
construction is nearly a third of the original design.
May
Embodied Energy
• Improved design maintains a stable indoor heating and cooling.
Apr
Life Cycle Energy
• Life cycle energy (40 years) is four times lower
temperature and reduces the reliance on
Mar
Month
energy rating)
Heating 5.5 Mwh
0.6
0.5
0.0
Cooling 1.2 Mwh
24,120 MJ 502.5 MJ/M2 1,940,738 MJ
External Wall
17%
55,811
Roof
25%
80,685
Floor
21%
68,241
Internal Partition
5%
17,206
Windows
6%
17,846
Doors
0.2%
565
Fitments
14%
45,820
Plumbing
10%
30,386
Drains
1%
4264
Wiring
1%
2423
Total
323,156 MJ
Per M2
6.73 GJ/m2
(MJ) External Wall
28%
273,300
Roof
28%
268,477
Floor
3%
26,496
Internal Partition
0.2%
4,190
Windows
33%
320,018
0.06%
565
Fitments
5%
45,820
Plumbing
3%
30,386
Drains
0.5%
4264
Wiring
0.3%
2423
Doors
Total
Per M2
Name: Brian Wilson ID: a1686992 Tutor Group: 4
975,938 MJ
20.33 GJ/m2
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Thermal Performance Indoor Temp
Outdoor Temp
Original February (no heating cooling) 45 45
40 40
40 40
35 35
35 35
Temp (0C)
45 45
Temperature (°C)
Temperature (°C)
Temp (0C)
Improved February (no heating cooling)
30 30 25 25 20 20 15 15 10 10
30 30
25 25 20 20 15 15
01 01
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
14 14
15 15
Date
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
26 26
25 25
27 27
28 28
10 10
01 01
01 01
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
Date: Mon 01/Feb to Sun 28/Feb Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
16 16
17 17
Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
18 18
19 19
20 20
21 21
22 22
23 23
24 24
26 26
25 25
27 27
28 28
01 01
Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
28 28
22
20 20
26
24 24
18
22
20 20
Temperature (°C)
Temp (0C)
16 16
Temperature (°C)
15 15
Date
Original July (no heating cooling)
Improved July (no heating cooling)
14
12 12 10
88 6
18
16 16 14
12 12 10
88 6
44
44
2
00 01 01
14 14
Date: Mon 01/Feb to Sun 28/Feb
Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
Temp (0C)
ASHRAE comfort band
2
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
Date
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
00 01 01
01 01
Date: Thu 01/Jul to Sat 31/Jul Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
• Improved design and original design simulated
• Passive temperature control achieved through
• Feb ASHRAE comfort range 24 - 30 degrees (based on average maximum temperature of 30 degrees BOM) • July ASHRAE comfort range 19 - 26 degrees (based on average maximum temperature of 15 degrees BOM)
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
Date
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
01 01
Date: Thu 01/Jul to Sat 31/Jul
Overview for one year with no heating an cooling.
02 02
Performance Summary high thermal mass and design
• Stable temperature range in Summer and mostly within ASHRAE comfort standards • Improved temperature range in Winter, but below the ASHRAE comfort range, • Overall reduced heating requirement in Winter and minimal need for cooling in Summer
Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
Heat Exposure
• Roof is exposed to the most heat. • Green roof helps capture and distribute the heat. • A stable temp is maintained as seen in the graphs.
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Thermal Performance Indoor Temp
Outdoor Temp
Original February (no heating cooling) 45 45
40 40
40 40
35 35
35 35
Temp (0C)
45 45
Temperature (°C)
Temperature (°C)
Temp (0C)
Improved February (no heating cooling)
30 30 25 25 20 20 15 15 10 10
30 30
25 25 20 20 15 15
01 01
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
14 14
15 15
Date
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
26 26
25 25
27 27
28 28
10 10
01 01
01 01
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
Date: Mon 01/Feb to Sun 28/Feb Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
16 16
17 17
Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
18 18
19 19
20 20
21 21
22 22
23 23
24 24
26 26
25 25
27 27
28 28
01 01
Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
28 28
22
20 20
26
24 24
18
22
20 20
Temperature (°C)
Temp (0C)
16 16
Temperature (°C)
15 15
Date
Original July (no heating cooling)
Improved July (no heating cooling)
14
12 12 10
88 6
18
16 16 14
12 12 10
88 6
44
44
2
00 01 01
14 14
Date: Mon 01/Feb to Sun 28/Feb
Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
Temp (0C)
ASHRAE comfort band
2
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
Date
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
00 01 01
01 01
Date: Thu 01/Jul to Sat 31/Jul Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
• Improved design and original design simulated
• Passive temperature control achieved through
• Feb ASHRAE comfort range 24 - 30 degrees (based on average maximum temperature of 30 degrees BOM) • July ASHRAE comfort range 19 - 26 degrees (based on average maximum temperature of 15 degrees BOM)
03 03
04 04
05 05
06 06
07 07
08 08
09 09
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
Date
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
01 01
Date: Thu 01/Jul to Sat 31/Jul
Overview for one year with no heating an cooling.
02 02
Performance Summary high thermal mass and design
• Stable temperature range in Summer and mostly within ASHRAE comfort standards • Improved temperature range in Winter, but below the ASHRAE comfort range, • Overall reduced heating requirement in Winter and minimal need for cooling in Summer
Air temperature: Living Room & Bedroom & Bathoom (NO AC.aps)
Dry-bulb temperature: 16_Adelaide_SA_CZ0514_12_TMYC.EPW (NO AC.aps)
Heat Exposure
• Roof is exposed to the most heat. • Green roof helps capture and distribute the heat. • A stable temp is maintained as seen in the graphs.
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Cost Comparison
Water Management Water Consumption Estimation Roof Area
Life Cycle Cost (external wall)
Water Usage Roof Plan 49m2
2 people
Users
Rammed Earth
40 Litres/Day
Indoor Daily Usage
Proposed Tank
Initial cost
15% 2 x 7,000 Litre
N
2m
The green roof collects and filters grey water for for water from sinks.
Water Usage Floor Plan
The shade structure is used to harvest rainwater
Grey Water Tank
for sinks and basins. •
-Harvests water from green roof. Used in Garden Care and toilet.
2 x 7000 L precast concrete tank is buried in the Earth Berm. (1700 W x 1700 H x 2470 L)
•
Garden is planted with drought resistant plants
Rainwater Tank
that need minimal water. 10L a day is allocated
- Harvests water from the shade structure. Used in sinks/toilet.
for outdoor use. •
Uses water efficient fittings. 6 star tap and 5 star sink and toilet which recycles the grey water
Green Roof
from the sink to flush the toilet. •
The sewage, as required by law is returned to the mains.
•
The tank provides 100% of the water reuired. But the house is still conected to the mains water in case of shortfall.
Steel
1m
N
Down pipes to Rainwater Tank
Black water to sewer
43,435
Initial cost Maintenance
7523
Replacement
NA
Replacement
409
11,040 $55,970
Energy Total
1,173 $57,834
• Initial cost of Timber frame build is lower • After lifetime energy, replacement and maintenance costs Rammed Earth is cheaper • Important to note Rammed Earth will exceed a 40 year lifespan.
Conclusion Mains Water
-Rain water sustains plants. Excess stored as grey water.
Rainwater tank to sinks.
Grey Water Filter
Grey Water from sinks to filter, then tank. To be used for garden.
-Filters water from sinks before stored in tank.
43,435 1505
Total
garden care and toilet flushing. A filter is used •
($)
Maintenance
Energy
•
Timber Frame Plasterboard
10 L / Day
Water in Tank to Start
($)
Insulation
(20 L/Day per person) Outdoor Usage
ORIGINAL
IMPROVED
• Maintains stable temperature through Summer and Winter. • Minimal heating and cooling required and reduced energy costs (five star energy rating) • Self sustainable in water • Low embodied and life cycle energy • Successfully utilises passive design principles for thermal comfort.
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian
Toward a Zero Carbon Design Assignment II Environment II
Cost Comparison
Water Management Water Consumption Estimation Roof Area
Water Usage Roof Plan
Life Cycle Cost (external wall)
49m2 2 people
Users
Rammed Earth
40 Litres/Day
Indoor Daily Usage
Proposed Tank
Initial cost
15% 2 x 7,000 Litre
N
2m
• The green roof collects and filters grey water for
Steel
for water from sinks.
Water Usage Floor Plan
• The shade structure is used to harvest rainwater
Grey Water Tank
for sinks and basins.
-Harvests water from green roof. Used in Garden Care and toilet.
• 2 x 7000 L precast concrete tank is buried in the Earth Berm. (1700 W x 1700 H x 2470 L) • Garden is planted with drought resistant plants
Rainwater Tank
that need minimal water. 10L a day is allocated
- Harvests water from the shade structure. Used in sinks/toilet.
for outdoor use. • Uses water efficient fittings. 6 star tap and 5 star sink and toilet which recycles the grey water
Green Roof
from the sink to flush the toilet. • The sewage, as required by law is returned to the mains. • The tank provides 100% of the water reuired. But 1m
N
Down pipes to Rainwater Tank
Black water to sewer
43,435
Initial cost Maintenance
7523
Replacement
NA
Replacement
409
11,040 $55,970
Energy Total
1,173 $57,834
• Initial cost of Timber frame build is lower • After lifetime energy, replacement and maintenance costs Rammed Earth is cheaper • Important to note Rammed Earth will exceed a 40 year lifespan.
Conclusion Mains Water
-Rain water sustains plants. Excess stored as grey water.
Rainwater tank to sinks.
Grey Water Filter
Grey Water from sinks to filter, then tank. To be used for garden.
-Filters water from sinks before stored in tank.
43,435 1505
Total
garden care and toilet flushing. A filter is used
case of shortfall.
($)
Maintenance
Energy
the house is still conected to the mains water in
Timber Frame Plasterboard
10 L / Day
Water in Tank to Start
($)
Insulation
(20 L/Day per person) Outdoor Usage
ORIGINAL
IMPROVED
• Maintains stable temperature through Summer and Winter. • Minimal heating and cooling required and reduced energy costs (five star energy rating) • Self sustainable in water • Low embodied and life cycle energy • Successfully utilises passive design principles for thermal comfort.
Name: Brian Wilson ID: a1686992 Tutor Group: 4
Tutor: Lyrian