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Section 2 The Influence of the Building Envelope on modifying the external climate Buildings are modifiers of climate . - PowerPoint PPT Presentation

Section 2 The Influence of the Building Envelope on modifying the external climate Buildings are modifiers of climate . Vernacular solutions to varying local climatic conditions Other important factors associated with site planning and building design The need to service buildings

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Section 2 The Influence of the Building Envelope on modifying the external climate Buildings are modifiers of climate .

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Section 2

The Influence of the Building Envelope on

modifying the external climate

  • Buildings are modifiers of climate.

  • Vernacular solutions to varying local climatic conditions

  • Other important factors associated with site planning and building design

  • The need to service buildings




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Other important factors associated with site planning

and building design

  • Orientation

  • Building shape

  • Heat losses and gains











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Heat Losses from buildings

  • Transmission Losses

  • Exfiltration and Infiltration


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Sensible Heat Gains

Solar Gains

Transmission gains

Infiltration

Latent Heat Gains

Infiltration

External Sources of Heat Gain to Buildings


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Sensible Heat Gains

People

Lighting

Electrical Equipment

Latent Heat Gains

People

Processes

Internal Sources of Heat Gains



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With small buildings the main problem is

generally keeping them warm in winter


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With large buildings the main problem tends

to be keeping them cool in summer


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In addition for the need to provide Heating and

cooling, other systems also need to be provided to

ensure the comfort and well being of people in

buildings

  • Ventilation

  • Water

  • Electricity

  • Gas

  • Drainage


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