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Innovations for floodproof ecocities

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Presentation on the multiple characteristics of flood proof ecocities. 5 components are elaborated. 1) Water systems as a source 2) More functions for urban water, 3) Initiative for water manager, 4) Safety and security 5) Involvement of citizens




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Innovations for floodproof ecocities

  1. 1. DeltaSync BV, the Netherlands Dr. ir. Rutger de Graaf The Water City Innovations for flood proof eco-cities
  2. 2. Trends
  3. 3. Trends and traditional approach lead to deltas that are: • Increasingly urbanized • Increasingly under sea level • Increasingly dependent on large scale, globalizing networks of energy, water and food supply • Increasingly vulnerable to floods and droughts Graaf, R.E. de, F.H.M. van de Ven and N.C. van de Giesen (2007), The Closed City as a strategy to reduce vulnerability of urban areas for climate change. Water Science and Technology, Vol 56 No 4, pp 165-173, IWA Publishing, London Why change?
  4. 4. Possible responses towards environmental variation to reduce vulnerability: • Reduce environmental variation  Build a threshold, example: • Reduce damage if threshold is exceeded  Develop ability to cope with impacts • Recover quickly and effectively after damage  Develop ability to recover • If future variation is uncertain  Develop ability to adapt The concept of vulnerability Graaf, R.E. de, F.H.M. van de Ven and N.C. van de Giesen (2007), The Closed City as a strategy to reduce vulnerability of urban areas for climate change. Water Science and Technology, Vol 56 No 4, pp 165-173, IWA Publishing, London
  5. 5. Type Time orientation Responsibility Threshold Capacity Damage prevention Past Clear Coping Capacity Damage reduction Instant Not clear Recovery Capacity Damage reaction Instant/ future Not clear Adaptive Capacity Damage anticipation Future Undefined The concept of vulnerability Graaf, R.E. de, F.H.M. van de Ven and N.C. van de Giesen (2007), The Closed City as a strategy to reduce vulnerability of urban areas for climate change. Water Science and Technology, Vol 56 No 4, pp 165-173, IWA Publishing, London
  6. 6. The concept of vulnerability • Vulnerability of a system is difficult to assess because components of vulnerability are strongly interrelated. • Example: Increased flood defense leads to increased urbanization and a decreased flood risk perception.
  7. 7. Predicting future water cities, is it possible? «There is no reason anyone would want a computer in their home.» - Ken Olson, president, chairman and founder of Digital Equipment Corp. (DEC), maker of big business mainframe computers, arguing against the PC in 1977.
  8. 8. 1. Water system as a source • Energy • Nutrients 2. More functions for urban water • Element urban design and urbanization • Ecosystem • Mobility Floodproof Ecocities(1)
  9. 9. 3. Involvement of citizens • Local water and energy companies • Local technologies • Citizens as co-producer 4. More initiative for water manager • Involved early in the process • Important role for design and visualisation • Entrepreneurial approach 5. Safety and security • Multifunctional use of space in cities • Protection of hotspots • Multilayer approach: shelter, and recovery planning Floodproof Ecocities(2)
  10. 10. Water systems as a source More functions for urban water Initiative for water manager Safety and security Involvement of citizens Floodproof Ecocity
  11. 11. Aquifer Thermal Energy Storage (ATES) Source: IAE, 2005
  12. 12. The ATES+ concept Graaf, R.E. de, F.H.M. van de Ven, I. Miltenburg, G. van Ee, L.C.E. van de Winckel en G. van Wijk (2008), Exploring the Technical and Economic Feasibility of using the Urban Water System as a Sustainable Energy Source. Thermal Science Vol 12, No 4, pp 35-50
  13. 13. Rathaus Zurich Oldest surface water heatpump system in Europe (1938) • Design capacity 70 kW (heating and cooling) • Current heating capacity: 210 kW • Current cooling capacity 130 kW • Minimal water temperature Limmat 4oC • Maximal watertemperature Limmat 25oC Water as heatsource: examples
  14. 14. Rotterdam: Heat from the river Meuse (Ingenieur 2008.1) Water as heatsource: examples
  15. 15. Den Bosch, heat and cooling from pond on top of parking garage (Essent, energieprojecten.nl) Water as heatsource: examples
  16. 16. Den Haag: Heat from the North Sea Water as heatsource: examples
  17. 17. Water systems as a source More functions for urban water Initiative for water manager Safety and security Involvement of citizens Floodproof Ecocity
  18. 18. The floating City concept
  19. 19. Floating buildings in the Netherlands
  20. 20. FLOATING PAVILION Pilot project for Floodproof Urbanisation
  21. 21. FLOATING PAVILION Construction Process
  22. 22. Flexibility
  23. 23. FLOATING PAVILION Green Technology
  24. 24. The NEXT STEP towards floating urbanisation Current practice Next steps
  25. 25. Floating City Almere
  26. 26. Ecology and Urban development
  27. 27. Water for mobility
  28. 28. Water for mobility
  29. 29. Water systems as a source More functions for urban water Initiative for water manager Safety and security Involvement of citizens Floodproof Ecocity
  30. 30. RESEARCH Self-Sufficient utilities
  31. 31. Floating Houses Harnaschpolder
  32. 32. Floating Houses Harnaschpolder
  33. 33. Water systems as a source More functions for urban water Initiative for water manager Safety and security Involvement of citizens Floodproof Ecocity
  34. 34. Water systems as a source More functions for urban water Initiative for water manager Safety and security Involvement of citizens Floodproof Ecocity
  35. 35. Source: MLIT, 2005 Japan: superlevee
  36. 36. Floodproofing Hotspots
  37. 37. Floodproofing Hotspots Normal situation During a flood
  38. 38. Water systems as a source More functions for urban water Initiative for water manager Safety and security Involvement of citizens Floodproof Ecocity
  39. 39. For more information: DeltaSync Molengraaffsingel 12-14 2629 JD Delft Netherlands Dr. ir. Rutger de Graaf T: +31 152561872 C: +31 616308790 www.deltasync.nl

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