Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases...

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WATER AND ENERGY: INTEGRATED STRATEGIES AT THE SITE SCALE Steve Moddemeyer, CollinsWoerman

Transcript of Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases...

Page 1: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

WATER AND ENERGY: INTEGRATED STRATEGIES AT THE SITE SCALE

Steve Moddemeyer, CollinsWoerman

Page 2: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

Overview

Vibrant metabolic landscapes

Create cooling through pressure differentials

Using vegetation and water reuse for pre-cooling of HVAC air

Electric cars linked with residential towers

Daniel Roehr, University of British ColumbiaAudi E-Tron

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Yesler Terrace

Redevelop to 4,000 –5,000 residential units

1 million sf medical office

25,000 sf retail

Energy district loops

Water loops

Food/waste loops

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Yesler Terrace: Vibrant metabolic landscape

Page 5: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

Energy loop

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Hammerby Sjostad,

CK

HAMMERBY, SJOSTAD, STOCKHOLM SWEDEN

Page 7: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation
Page 8: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

Using buildings to create cooling in Singapore

Page 9: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation
Page 10: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

Reduced evapotranspiration in urban areas increases thermal

radiation and changes up to 95% of the net radiation to heat

Niederschlag

Evaporation(Latent Heat)

123 Wh

Sensible Heat1827 Wh

Main Influencing Factors:

Surface colour (Albedo)

Heat capacity of the surface

Exposition

Reflection482 Wh

Uncomfortable microclimate

Low durability of thesealing of the roof

High surface runoff, low evapotranspiration

Pollution of the surface waters

Asphalt roofEnergy balance, daily mean Disadvantages

Global Radiation5354 Wh

Mar

co.S

chm

idt@

TU

-Ber

lin.d

e

Increased Thermal Radiation 2923 Wh

Net Radiation1949 Wh

Net Longwave (Thermal) Radiation 7555 Wh

Ø Daily Mean in Wh/m² June-August 2000UFA-Fabrik Berlin-Tempelhof

Source: Marco Schmidt, Technical University of Berlin

Page 11: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

On a green roof, evapo-transpiration reduces thermal radiation

and changes up to 65% of the net radiation to evaporative cooling

Niederschlag

Evaporation(Latent Heat)

1185 WhSensible Heat

872 Wh

Main Influencing Factors:

Field capacity of the soil

Exposition

Percentage of coverof the vegetation

Reflection803 Wh

Improvement of the microclimate

High durability of thesealing of the roof

Reduction of the runoffby evapotranspiration

Extensive Greened Roof

Energy balance, daily mean Advantages

Global Radiation5354 Wh

Mar

co.S

chm

idt@

TU

-Ber

lin.d

e

Increased Thermal Radiation 2494 Wh

Net Radiation2057 Wh

Net Longwave (Thermal) Radiation 7555 Wh

Ø Daily Mean in Wh/m² June-August 2000UFA-Fabrik Berlin-Tempelhof

Source: Marco Schmidt, Technical University of Berlin

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Evaporative cooling in Central Air Conditioners

Source: Marco Schmidt, Technical University of Berlin

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Difference in energy consumption with and

without evaporative cooling

0

1

2

3

4

5

6

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

20/7/06 0:02 20/7/06 4:07 20/7/06 8:07 20/7/06 12:07 20/7/06 16:12 20/7/06 20:27 21/7/06 0:27 21/7/06 4:27 21/7/06 8:27 21/7/06 12:32 21/7/06 16:32 21/7/06 20:37

[kW][°C]

Aussentemperatur [°C]

Anlage 4 [kW]

Source: Marco Schmidt, Technical University of Berlin

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Electric car fleet

Reduce parking construction costs

Clean air

Healthy pedestrians

Lower cost for renters

Link buildings to car batteries for off-peak energy price advantage

GHG credits

Marketing/branding

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Semi-autonomous buildings through electric car fleet

Page 16: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation
Page 17: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

Putting it all together

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DOCKSIDE GREEN, VICTORIA, BRITISH COLUMBIA

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MAGOK URBAN DEVELOPMENT PROJECT

Page 20: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

PEDRA BRANCA SUSTAINABLE URBANISM

Page 21: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

GODREJ GARDEN CITY, AMEDABAD, GUJURAT, INDIA

Page 22: Twenty First Century Water and Energy: Integrated … evapotranspirationin urban areas increases thermal radiation and changes up to 95% of the net radiation to heat Niederschlag Evaporation

THANK YOU!

Steve Moddemeyer, Associate PrincipalCollinswoerman, Seattle206-245-2034


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