Real cooling water bodies Urban heat problems will be exacerbated and peak rain fall will increase: these predicted climate problems need to be resolved quickly. By studying configurations of shading, evaporation and ventilation objects around bodies of water, we can improve ‘human thermal sensation in cities’. Speaker: Sanda Lenzholzer

1. REALLY COOLING WATER BODIES IN
CITIES
Sanda Lenzholzer
NEXT STOP

2. LISETTE KLOK
micrometeorology
HvA
JEROEN KLUCK
urban water management
HvA
JOCHEN MUELDER
3D visualisation
Lenné3D
SANDA LENZHOLZER
urban design + landscape arch
WUR
COR JACOBS
interaction water - urban atmosphere
WUR
JOÃO CORTESÃO
urban design + landscape arch
WUR

3. urban heat

4. lack of water storage

5. water bodies as
coolants?

6. source: Steeneveld et al. 2014 source: Theeuwes et al. 2013
not really...

7. But then: how?
Making prototypes

8. assessment
workshop 1
inventory + early designs
test
micrometeorological simulations
test
micrometeorological simulations
refinement
round 5
online inquiry
test
case studies
reality check
refinement
final refinements
final prototypes
refinement
round 1
assessment
workshop 2
other design features
refinement
round 3
assessment
workshop 3
other design features
assessment
workshop 4
global evaluation
refinement
round 2
refinement
round 4
early designsinventory ‘testbeds’

9. Amsterdam
Utrecht
Leeuwarden
Groningen
Nijmegen
Den Haag
Eindhoven
Rotterdam
testbeds

11. first designs

12. validate testbeds and first
designs, user meeting 1

13. Physical models,
second design loop

14. ENVI-met simulations

15. assessing designs,
user meeting 2

17. drawings of third
design loop

18. assessing designs,
user meeting 3

19. next phase:
online inquiry

20. shading seems to be the
best cooling strategy but
also design challenge since
it may hinder evaporation,
ventilation and night-time
cooling
2
Bringing people closer to the
water seems a promising
strategy make them ‘feel’
cooler
3
the waterbodies in the
testbeds have a minimal
thermal effect on the
surrounding environment
1
conclusionsconclusions so far
Evaporating water mist with
nozzles is promising but can
bear health issues
4
Scientists find it difficult to
assess integrated solutions
as they are used to work
analytically
7
Identifying testbeds was a
crucial step to be able to
come up with relevant
examples
5
substantial procedural
Working with physical
models enabled very easy
communication between all
disciplines and with user
committee
6
Using designs as the object
of inquiry brings about more
applicable results for the
design community
8

21. KEY INSIGHTS