Energy and water conserva0on expo and forum 2013
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Energy and water conserva0on expo and forum 2013
Name : May Jalal Al-‐Saffar Profession : Architect/ Researcher Na0onality : Bahraini Organiza0on : Bri0sh University in Dubai
Msc. In Sustainable Design and Built Environment
Life-Cycle Assessment of Sustainable Buildings
May Al-‐Saffar Bri-sh University in Dubai
LCA is the detailed analysis that gives you the information you need to make the most environmentally friendly decisions throughout product design.
What is sustainability ?
Culture Technology China
Dubai
And all over the world
BACK to the ecology
Extended Problem!
New York
London
Dubai
TODAY
Problem Definition Bahrain!
Waste
Landfill
Transporta0on
Construc0on
Solution
Do you know the problem?
Do you know the solu-on?
YES ?
Decision making Correct answer
(4) Acquisi0on (1) Procurement/ Construc0on
(2) Consump0on (3) Disposal Back to nature (Grave)
From nature (Cradle) Manufacture Process Assemble Pack Transporta-on
Energy, Water Maintenance Refurbishment
Reuse Reduce Recycle (Cradle)
(LCA) is technique to assess environmental impacts associated with all stages of product life
Decision making in sustainable design
Op-on 1 : Masdar city in Abu Dhabi Op-on 2 : Some where in Dubai
Decision making in sustainable design
Decision making in sustainable design Example : Choosing the ligh-ng fixtures – Stage 1
To get an indica-on of energy and electrical demand savings possible with dayligh-ng; this figure shows how many 60 W incandescent lamps would be required to produce the same amount of light as a .9 X 1.5 window
Decision making in sustainable design Example : Choosing the ligh-ng fixtures – Stage 2
To get an indica-on of energy and electrical demand savings possible with CFL ; this figure shows how many 60 W incandescent lamps would be required to produce the same amount of light as 1 CFL light 1800 W
Decision making in sustainable design Example : Choosing the ligh-ng fixtures – Stage 3
Op-on 1: Incandescent Lamp Cost: BD 0.150 Output: 1250 W
Op-on 2: CFL Lamp Cost: BD 1.500 Output: 1250 W
-‐ Based on the informa-on which one are you going to choose? -‐ Are you aware of those two lamps or not? Does your awareness affect your decision?
Decision making in sustainable design Example : Choosing the ligh-ng fixtures – Stage 3 (Con-nue)
Op-on 1: Incandescent Lamp Cost: BD 0.150 Output: 1250 W
Power: 100 W Life Span: 1000 hr
Op-on 2: CFL Lamp Cost: BD 1.500 Output: 1250 W
Power: 20 W Life Span: 8000 hr
& NOW Based on the informa-on which one are you going to choose? -‐ Are you aware of those two lamps or not? Does your awareness affect your decision?
Business case (Payback period, return on investment ….. Etc)
Decision making in sustainable design Factors affec-ng the decision making:
(1) Affordability (2) Ownership
(3) Lows and codes
(4) Engagement (the will)
(5) Future thinking (Energy Saving)
Decision making in sustainable design Factors affec-ng the decision making (Con-nue):
Op-on 1: Incandescent Lamp Cost: BD 0.150 Output: 1250 W
Power: 100 W Life Span: 1000 hr
Op-on 2: CFL Lamp Cost: BD 1.500 Output: 1250 W
Power: 20 W Life Span: 8000 hr
-‐ No flickering -‐ Good color rendering -‐ Color temperature -‐ No noise
-‐Flickering -‐ Low color rendering -‐ Color temperature -‐ Noise
Decision making in sustainable design Example : Choosing the ligh-ng fixtures – Stage 4 (Con-nue)
Op-on 1: Incandescent Lamp Cost: BD 0.150 Output: 1250 W
Power: 100 W Life Span: 1000 hr
-‐ No flickering -‐ Good color rendering -‐ Color temperature -‐ No noise
Op-on 2: CFL Lamp Cost: BD 1.500 Output: 1250 W
Power: 20 W Life Span: 8000 hr
-‐Flickering -‐ Low color rendering -‐ Color temperature -‐ Noise
-‐ General Waste -‐ Hazardous Waste
Lamp contents glass, metals but NO mercury
Lamp contents glass, metals and 1 to 5 mlg mercury per lamp
NOW what ? Should we banned CFL lamps?
Decision making in sustainable design Health and Environmental problems: in many countries hazardous waste is dumped in landfills along with general waste.
Decision making in sustainable design (1) How much would it take to clean the environment? (2) Who will carry that cost of collec0ng and transporta0on processing?
Decision making in sustainable design Industrial country have programs for collec0ng and recycling CFL
Decision making in sustainable design (1) How much would it cost to clean the environment from mercury ader using it?
1) The improper disposal of the CFL lamps can cause mercury to be released to the air and water. 2) Mercury in the waterway is changed by bacteria into harmful components on toxic from that builds up in animals that eats fish. 3) Most humans are exposed to mercury effects is from ea-ng contaminated fish
1 mg of mercury can contaminate huge area of sea water.
Cradle to Cradle
Decision making in sustainable design Example : Choosing the ligh-ng fixtures – Stage 5 (Con-nue)
Op-on 1: Incandescent Lamp Cost: BD 0.150 Output: 1250 W
Power: 100 W Life Span: 1000 hr
-‐ No flickering -‐ Good color rendering -‐ Color temperature -‐ No noise -‐ General Waste
Op-on 2: CFL Lamp Cost: BD 1.500 Output: 1250 W
Power: 20 W Life Span: 8000 hr
-‐Flickering -‐ Low color rendering -‐ Color temperature -‐ Noise -‐ Hazardous Waste
-‐ Mercury emissions due to electricity genera0on is 5 – 6 mg
-‐ Mercury emission due to electricity genera0on is 1-‐1.5 mg
How clean is the electricity we are using?
THINK
Decision making in sustainable design
Cradle to Cradle Cradle to Grave
Decision making in sustainable design
Reuse and renovate instead of demolish
Decision making in sustainable design
Reuse
Decision making in sustainable design
If you demolish you s0ll can recycle
Asphalt and concrete
Problems associated with LCA -‐ New approach to the market. -‐ What is the func0on unit? (example: toy, house, phone ..etc) -‐ Varity of process done are huge to each product. -‐ Impact categoriza0on is different (global warming, foot print or maybe health issues. -‐ No na0onal/worldwide standardized system for LCA. -‐ Lace of accurate databases. -‐ Every study has different outputs. -‐ Lack of awareness and educa0on.
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