Green Buildings, By Gregers Reimann. Green Drinks, 27 September 2011, Kuala Lumpur
Transcript of Green Buildings, By Gregers Reimann. Green Drinks, 27 September 2011, Kuala Lumpur
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Green Buildings:
The BIG picture!
And find out what you can do at your
workplace and at home
By: Gregers [email protected], hp 0122755630
27 September 2011
Visit this
afternoon
ST Diamond Building(Photo credit: ACICC Malaysia Sdn Bhd )
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Getting Lost in Translation(what does it mean to save 85.7 million tons of CO2?)
7
1
0
2
4
6
8
Average
Malaysian
Sustainable
Level by
2050
Ton CO2 emissions
per person peryear
World average (2010):
5 ton CO2 per person
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What happens if we dont save CO2?
Worried!
5 meter highersea level by
2100. And a
worrying trend.
Will my durianplantation in
Port Klang get
flooded?
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Yes!
Red colour shows 5 meter sea level rise
And here is the durian plantation
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What happens if we dont save CO2?
Worried!
Why is Malaysiastill building coal
fired power
plants?
And giving energy
subsidies
promoting
energy wastage
Source: Storms of my Grandchildren (2009)
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Activities and their CO2 emissions
2.00
1.24
0.12 0.04 0.10
0.0
0.5
1.0
1.5
2.0
2.5
D
rivingcar(12,0
00km)
Eating200gbe
efdaily
Eating200gchicken
daily
Eating200gbaked
beansd
aily
Fridge
Ton CO2 emissions per year Please stick to 1 ton CO2,so I dont loose my durian
plantation!
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Activities and their CO2 emissions
2.001.24
0.12 0.04 0.10
7.00
0.0
1.02.03.04.05.06.0
7.08.0
Drivingcar
(12,0
00km)
Eating200gbeef
daily
Eating200g
chickendaily
Eating200g
bake
dbeansdaily
Fridge
Returnflight(K.L.
-C
openhagen)
Ton CO2 emissions per year Gosh!Flying is very CO2 intensive.
No more durian plantation!
Please by CO2 off-sets for
your flights, so I can keep
my durian plantation! Make sure it is GoldStandard certified
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The Big Picture:Energy Impact per Person
Source:Sustainable Buildings without the hot air by David MacKay, Cambridge University, 2009
Please guessthe labels?
For Malaysia:
0.62 kg CO2 / kWh electricity
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The Big Picture:Energy Impact per Person
Source:Sustainable Buildings without the hot air by David MacKay, Cambridge University, 2009
For Malaysia:
0.62 kg CO2 / kWh electricity
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Car Travel Necessary?
Source: Energy Use in a Maturing Society Case of Denmark by Nrgrdand Christensen (1982 & 2001). Illustrations by Claus Deleuran
Example:
The Swiss Re (Normal Foster) building in London
has parking but only for bicycles!Note: The building has good public transport
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Electric Consumption Up
Fitness center in the US
Source: Energy Use in a Maturing Society Case of Denmark by Nrgrdand Christensen (1982 & 2001). Illustrations by Claus Deleuran
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Source: Energy Use in a Maturing Society Case of Denmark by Nrgrdand Christensen (1982 & 2001). Illustrations by Claus Deleuran
Our Consumption Based Society
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Stuff(energy break-down)
Source:Sustainable Buildings without the hot air by David MacKay, Cambridge University, 2009
Lets look at
the building
sector
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Most cheap CO2 savings in building sector
Cost of CO2 savingsUS dollars / ton CO2 equivalents
Giga-to
nofCO2
equivalentsperyear
CO2 savings
Source: IPCC
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Stop the leaks
Supply
Wastage
Plug the holes(efficiency)
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New Straits Times
January 2002, Malaysia
Stop the leaks
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Energy Index of Office Buildings
in Malaysia
0
50
100
150
200
250
300kWh/m2 year
Stop the leaks
Leaks stopped
Visit thisafternoon
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ST Diamond Building(Photo credit: ACICC Malaysia Sdn Bhd )
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Visit thisafternoon
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Play video
Sustainable Features of ST Diamond Buildinghttp://www.youtube.com/watch?v=3H_sXCtDayc
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Solar Geometry
SITETilted 16 from North
Solar Path for MalaysiaLatitude 3.1 North
25 Faade Tilt Angle
Solar GeometryThe solar path was used to
sculpt the building
geometry. The 25 tilt angle
of the facades ensures that
North and South facades arefully self-shaded during the
hottest mid-day hours. For
the East and the West
facades, the tilting faade
helps to reduce the solar
impact by 41%.The tilted glazing admits more of the desirable diffuse light
reflected off the landscape for glare free daylighting use in
the building
EastWest
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Typical Cross Section
Mirrorlightshelf
Fixedblinds for
glarecontrol
Daylight
reflectedonto
ceiling
Facade Daylighting System
Energy efficient lighting controls:Light sensor (automatic off), manual wall switch (on)
+ individual table lamps
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Self-shaded facade
from direct sun
Diffuse light deflectedinto room by lightshelfand window sill
LIGHT REFLECTIONS FROM:Lightshelf + Window sill
Lightshelf only
Window sill only
Mirror lightshelf with fixed louver
Faade Daylight DesignThe building is 50% daylit. The faade daylighting system consists of a mirror lightshelf and a white painted window sill. Both deflect
daylight onto the white ceiling for improved daylight distribution until 5 meters from the faade + 2 additional meters of corridor
space. Fixed white louvres with top surface mirror finish on the top side are mounted with a 30 tilt angle above the lightshelf for
glare protection while still allowing daylight to be deflected onto the ceiling. To increase daylight throw into the rooms, the suspended
ceiling was omitted giving a floor to ceiling height of 3.7 m.
FACADE
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Tannenbaum
reflector panel on
levels 4 and 5Atrium Daylight DesignThe atrium has been carefully designed optimize daylight utilization for each floor employing the combination of the
following three strategies:1. Automated blind with six different configuration to maintain the appropriate daylighting levels at all times. The blinds with 30% light
transmittance are adjusted every 15 minutes and follow a three different control strategies for morning, mid-day and evening2. The windows size becomes larger deeper into the atrium to cater for lower daylight levels3. A band of Tannenbaum reflector panels are applied to 4th and 5th floor to deflect daylight across the atrium to 1st and 2nd floor where daylight
levels are the lowest. The christmas tree profile reflectors have an inclination of 10 and reflect about 85% of the light in semi-diffusemanner, hence, avoiding visual glare issues for the building occupants.
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Manifold for pipes coming out of RC slabFloor slab cooling pipes laid before pouring concrete Suspended ceiling omitted not to restrict slab cooling
Floor Slab CoolingFlexible 22 mm PERT pipes are embedded in the RC slabs during
construction to make the building structure function as a thermal
storage system. At night 18C cold water is circulated in the slabs
cooling them down to about 21C. During the day-time, the system is
shut off, and floor slab passively absorbs heat gains from people,
computers, solar gains etc. The advantages of the floor slab cooling
system are:
Reduces cooling transport energy by 64% because it is more efficient
to transport cooling with water than with air
Shifts much of the cooling to the slabs, so the AHU system can be
down-sized about 30%
Shifts 30-40% of the cooling to night time, so building can save costfrom the lower off-peak energy rates and from reduced maximum
demand charge
One week temperature data(simulated by Transsolar)
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Electricity Savings Step by Step
Green Mark
Platinum
Energy
efficiency
steps
annual energy consumption
GBI
Platinum
GREEN BUILDINGRATINGS
Energy Savings: RM 1 million per yearPayback time: 3.6 years CO2 savings: 1500 ton CO2
Cars off the road: 750 cars (CO2 equivalents)
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Office Retrofit (EECCHI, Jakarta)
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Worlds most energy efficient ceiling fans(raise temperature, adjust temperature with fan speed)
Nov 2011
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What to do at home?
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Residential Energy Break-down
Air Conditioner
night time35%
Radio1%Television
2%
Iron
2%Fan2%
WashingMachine
14%
Water Heater
14%
Rice Cooker3%
Refrigerator19%Lighting
6%
Computers2%
Vacuum Cleaner0%
Typical 2 Story Terrace House in Petaling Jaya
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Energy Efficient Fridges
Similar scheme for
air-conditioners?
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Green Switch(hotel key switch principle)
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Green Switch(eliminate the standby losses)
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Bicycle(shower retrofit)
Cost: RM 50 (anybody can install at the bib tap)
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Seri RajaChulan Condo
(91 units)
Kuala Lumpur,
Malaysia
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Selling price of RecyclablesAlam Flora Recycle and Reward
0.15
0.16
0.16
0.14
0.16
1.5
0.32
0.18
0.06
0.12
0.10
RM/kg
0.56
Rate
(RM/KG)
Batteries, household
4.00Mobile phone
0.10TV and refrigerator
6.00Printer cartridge
0.64Laptop or CPU
0.48Plastic bags
0.36CDs & DVDs
CONTACT INFO:
Alam Florawww.alamflora.com.my
Recycle and Rewardwww.recycleandreward.my
Rate
(RM/KG)
Rate
(RM/KG)
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Recycling Rate now 2 times higher!
Condo recycling implemented 1 July 2010Before
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Play video
Inspirational low-tech videohttp://www.youtube.com/watch?v=JOl4vwhwkW8&feature=feedf
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Thank you
Gregers [email protected]
Hp 0122755630