• Like
Week 4 gb course
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Published

 

Published in Technology , Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
289
On SlideShare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
4
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Water Week 4 Part 1/2
  • 2. Why is “Water” and important consideration for Green Building?
  • 3. Water Resources *Water Scarcity Level around the World (WWAP, 2009)
  • 4. Water Restrictions - Australia
  • 5. Water Usage 53.1 340.2 218.1 497.2 308.5 277.6 0 100 200 300 400 500 600 Hanoi Bangkok Beijing Kuala Lumpur Singapore Average Water consumption per person (L/person/day) *Siemens AG, 2011
  • 6. Water Usage in Hanoi & VN - Industrial use not included, may explain low use in HN - Water leakage problem: estimated 45% water loss in HN - Vietnam only utilises about 5% of water resources - 13% of waste water disposed in fresh water resources - Some over exploited causing lower water table, subsidence and salinity intrusion
  • 7. Water Usage in Buildings - Worldwide buildings account for 20% of water usage - Through efficient use, savings of 40% can be achieved easily
  • 8. Strategies to save water?
  • 9. Landscaping - Use native or regionally adapted plants - Minimise grass (high irrigation requirements) - Use reused or harvested water - Don’t water between 10:00-17:00 - Use drip irrigation system
  • 10. Fixtures - Low flow taps/showers - Aerators - Dual flush toilets - Sensor tap - Automatic shut-off - Waterless Urinals Baseline flow rates
  • 11. Fixtures
  • 12. Composting Toilet - Aerobic decomposition converts human waste into nutrient rich fertiliser. - Creates “humus” every 2 months - Fan to increase oxygenation and decomposition rate, also stops odours escaping
  • 13. Water Monitoring/ Leakage Detection
  • 14. Water Recycling/Reuse Difference between blackwater and greywater?
  • 15. Water Recycling/ Reuse - 60-80% of domestic wastewater is grey - Greywater contains 90% less nitrogen than black water and no pathogens - Level of treatment depends on proposed uses - Ideal for use in irrigation - Requires duplication of plumbing
  • 16. Water Recycling/ Reuse
  • 17. Water Harvesting - First flush system - Can be stored in simple tanks or underground - Underground storage for cooler temperature and to eliminate algal growth - Effective during Wet season (April – October)
  • 18. Group Case Study assignment Discussion
  • 19. Materials Week 4 Part 2/2
  • 20. Material consumption - 45,000 – 85,000kg/ person/ year - Building Construction and Infrastructure
  • 21. Cement consumption - air pollution (dust, carbon emissions, hea vy metals) - noise and vibration - ecological and landscape degradation United States 2% Brazil 2% China 54% Egypt 1% Germany 1% India 7% Indonesia 1% Iran 2% Italy 1% Japan 2% Korea, Republic of 1% Mexico 1% Pakistan 1% Russia 1% Saudi Arabia 1% Spain 2% Thailand 1% Turkey 2% Vietnam 2% Other countries (rounded) 16%
  • 22. Steel consumption
  • 23. 0 50 100 150 200 250 300 350 400 450 500 2010 2015 2020 Cement (Million tons) Tile (Million sq m) Glass (Million sq m) Roofing Material (Million sq m) VN consumption projections
  • 24. % contribution of materials (HK 2005) Figure 3.3 (a) Percentage weight Contribution of Individual Building Material for Grade A Office Buildings Concrete (77%) Rebar (7%) Plaster, render & screed (5%) Bricks and Blocks (2%) Structural Steel (2%) Others (7%)
  • 25. % contribution of materials (HK 2005) Figure 3.3 (a) Percentage weight Contribution of Individual Building Material for Grade A Office Buildings Concrete (77%) Rebar (7%) Plaster, render & screed (5%) Bricks and Blocks (2%) Structural Steel (2%) Others (7%) Figure 3.3 (c) Percentage weight Contribution of Individual Building Material for Grade C Office Buildings Concrete (80%) Rebar (9%) Plaster, render & screed (5%) Bricks and Blocks (2%) Tiles (1%) Others (3%)
  • 26. % contribution of materials (HK 2005) Figure 3.3 (a) Percentage weight Contribution of Individual Building Material for Grade A Office Buildings Concrete (77%) Rebar (7%) Plaster, render & screed (5%) Bricks and Blocks (2%) Structural Steel (2%) Others (7%) Figure 3.3 (d) Percentage weight Contribution of Individual Building Material for Hotels Concrete (74%) Rebar (7%) Plaster, render & screed (6%) Bricks and Blocks (6%) Structural Steel (3%) Others (4%)
  • 27. % contribution of materials (HK 2005) Figure 3.3 (a) Percentage weight Contribution of Individual Building Material for Grade A Office Buildings Concrete (77%) Rebar (7%) Plaster, render & screed (5%) Bricks and Blocks (2%) Structural Steel (2%) Others (7%) Figure 3.3 (e) Percentage weight Contribution of Individual Building Material for Retail Centres Concrete (81%) Rebar (8%) Plaster, render & screed (4%) Bricks and Blocks (2%) Structural Steel (2%) Others (3%)
  • 28. Non-Baked Building materials - 32 million bricks in 2015, 45million in 2020 - Decision No. 121/2008/QD-TTg - From 2011: Buildings over 9 stories must >30% non-baked building materials for infill walls - Bricks can be made from industrial waste
  • 29. Life Cycle
  • 30. Life Cycle * Athena analysis comparing 3 alternative structural systems for a 4600m2, 3-storey office building
  • 31. Life Cycle Total Embodied Carbon: 620kgCO2/sqm 42% 24% 3% 8% 8% 7% 8% Substructure Superstructure Construction Services Floor/ceiling finishes Cladding Other materilas * ARUP data
  • 32. Embodied Energy
  • 33. Embodied Energy
  • 34. Timber Structure
  • 35. SOM Timber structure research - Concrete Jointed Timber Frame - Tested in 395-foot Dewitt- Chestnut Apartments, Chicago - Reduce Carbon footrint by 75%
  • 36. Forte Tower, Melbourne - 10 storeys - Completed in 2013 - Completely fire rated - Uses 760 panels of FSC cross laminated panels (Mass timber panels)
  • 37. FSC Timber - Forestry Stewardship Council - Timber from well managed, sustainable sources
  • 38. Hazardous Materials - VOCs (formaldehyde) - Paints - Floorings - Sealants - Finishes - Asbestos