Presentation of selected, joined written, paper 'Urban harvesting as planning approach towards productive urban regions'

1. 5/8/2010
Outline
Urban Harvesting as planning approach
Problem definition
towards productive urban regions
Concepts:
Wouter Leduc
Landscape Architecture and Urban Environmental Management and Technology Urban metabolism
Group – Wageningen University
Industrial Ecology – industrial ecosystem
Ferry Van Kann
Faculty of Spatial Sciences – University of Groningen Urban harvest approach
SCUPAD 2010, May 7
Low-exergy Planning
7-step method and results (case Kerkrade-West)
Conclusions
Problem definition Aim
Growing urbanization increasing pressure on
available resources
Waste production To develop method for an urban metabolism
conscious spatial planning, emphasizing on
Cities disconnected from sources distances do not energy, towards productive urban regions
matter (fossil fuel based system)
Lack of integration between urban planning & resources
management
1

2. 5/8/2010
Urban Metabolism Industrial ecology
Industrial system in which consumption is optimized;
waste minimized; effluents serve as raw material
Linear Harvesting of water,
wind
and energy
Ecosystems principles apply:
Roundput: recycling & cascading
Non-renewable energy,
water, materials
Emissions to soil,
water and air Reused and recycled waste Diversity: in actors, in inter-dependency and co-
materials, gases and liquids
operation
Locality: use local resources, respect local limiting
factors
Urban Harvest
Gradual change: evolution, transition to sustainable
Sources-and-sinks
Circular system, no sudden change/shock
Urban Harvest Low-exergy planning
Capture all renewable and residual primary and Multi-functional land-use & multi-functional structures
secondary resources
Each flow has a remaining quality credit: no waste, Connectivity & proximity
only resources in different qualities
Aim to use, re-use, re-cycle Distances
Closed cycle resource management Densities
System sizes
Valid for the different urban flows
2

3. 5/8/2010
Method & Results Step 1: inventory of spatial functions
Step 2 and 3: inventory of energy demand, Step 4: identify and localize clusters of spatial
identify large demanders & local potential functions
Function Electricity demand Heat/gas demand
MWh GJ
Houses 24,300 480,000
Retail 15,000 54,000
Other 6,000 46,000
Business/industr 435,000 2,070,000
y
3

4. 5/8/2010
Step 5: identify energetic linkages and Step 6: connect clusters and explore network
missing links patterns
2
Park-management
Decrease distances
1 Multi-functionality
Indoor ski &
tropical gardens
Missing functions
1 = brewery Heat network
2 = waterworld cascading
Step 7: develop smart spatial policies Summary of 7-step method
1. Inventory of spatial functions and land-use distribution
2. Identify large consumers of energy
3. Inventory of existing energy demand and categorize
(quality and quantity) & identify local energy potential
4. Identify and localize clusters
5. Identify energetic linkages and missing links
6. Connect clusters and explore network patterns
7. Develop smart spatial policies
4

5. 5/8/2010
Spatial strategy towards productive urban regions Conclusions
1 Brewery
2 Waterworld
3 Algae ponds 2
4 Greenhouses
5 Zoo extension Spatial strategy based on Urban Harvest as planning
new productive functions park management approach towards productive urban regions
2 closing cycles and cascading closing cycles
industrial ecology Urban circular metabolism
heat flow
cold flow 1 Locality, re-using, cascading, gradual change
closing cycle (re-using)
cascading (re-using) Multi-functionality
c Connectivity & proximity
park management res luste
ide r
closing cycles nt s of Waste = remaining quality
industrial ecology util ial are
itie
s as
3
4
5
Thanks for your attention!
5