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Net-Zero Energy Building:the two major drawbacks

Wim ZeilerFaculty of Architecture, Building and Planning

Unit Building Physics and Systems

ACKNOWLEDGEMENTSThe foundation PIT (Promotion Building Services

technology) supported financial this research.

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Summary of some of the major targets

for NZEBs around the world

/ Arrchitecture Building and Planning PAGE 19-11-2010

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Energy consumption profile for the Dutch

built environment in 2000 in %

/ Arrchitecture Building and Planning PAGE 29-11-2010

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Model of domestic energy streams:

and what about the user!?

/ Arrchitecture Building and Planning PAGE 39-11-2010[Molderink et al 2010].

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How smart is the SMART grid?

/ Arrchitecture Building and Planning PAGE 49-11-2010

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Definition of a Smart Grid:

/ Arrchitecture Building and Planning PAGE 59-11-2010

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Smart?

/ Arrchitecture Building and Planning PAGE 69-11-2010

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Behaviour impact 95%!

283%!

/ Arrchitecture Building and Planning PAGE 79-11-2010

Behaviour impact on highefficiency residence[Brahme et al 2009]

Behaviour impact ontypical residence[Brahme et al 2009]

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&

State of the art comfort technology

/ Arrchitecture Building and Planning PAGE 89-11-20106 - 17

A SMART Building is as smart as its occupants

Occupants of a building are the key!

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Thermal

comfort theoryof Professor

Fanger(1970)

PredictedPercentage of Dissatisfied

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Belevingsprofiel van de gebruiker over de dag

1

2

3

Persoon 1Persoon 2

Persoon 3

Persoon 4

Persoon 5

Persoon 6

Persoon 7

 

Comfort experience profile user during the day

9-11-2010

-3

-2

-1

0

8 9 10 11 12 13 14 15 16

Tijdstip

PMV

Persoon 8

Persoon 9Persoon 10

Persoon 11

Persoon 12

Persoon 13

Persoon 14

Persoon 15

Persoon 16

Persoon 17Persoon 18

gemiddelde beleving

gemiddelde enquête

Time of day

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ZEB Smart grid concept: individual-

workspace-room level

/ Arrchitecture Building and Planning PAGE 129-11-2010

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PAGE 139-11-2010

PerceptionInterpretationEvaluation

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Masterproject Integral Design

PAGE 149-11-2010

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thinking in all dimensions

/Architecture Building and Planning, unit Building Physics and SystemsPAGE 159-11-2010

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/Architecture Building and Planning, unit Building Physics and

SystemsPAGE 169-11-2010

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ConclusionThe effect of NZEB and its interchange with the grid isof great importance for its overall performance.

Also very important is the user with its comfort need,r h vi r n in r i n wi h h il in .

/ Arrchitecture Building and Planning PAGE 189-11-2010

 

These are the two major drawbacks at the momentconcerning to NZEB development.

Thank you for your attention!Thank you for your attention!ACKNOWLEDGEMENTS

The foundation PIT (Promotion Building Servicestechnology) supported financial this research.