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

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Section 2 The Influence of the Building Envelope on modifying the external climate Buildings are modifiers of climate . PowerPoint Presentation
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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 .
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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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  1. 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

  2. Buildings are modifiers of climate.

  3. Vernacular solutions to varying local climatic conditions

  4. Other important factors associated with site planning and building design • Orientation • Building shape • Heat losses and gains

  5. Orientation

  6. Orientation

  7. Orientation

  8. Orientation

  9. Orientation

  10. Orientation

  11. Building Shape

  12. Building Shape

  13. Building Shape

  14. Heat Losses from buildings • Transmission Losses • Exfiltration and Infiltration

  15. Sensible Heat Gains Solar Gains Transmission gains Infiltration Latent Heat Gains Infiltration External Sources of Heat Gain to Buildings

  16. Sensible Heat Gains People Lighting Electrical Equipment Latent Heat Gains People Processes Internal Sources of Heat Gains

  17. The need to service buildings

  18. With small buildings the main problem is generally keeping them warm in winter

  19. With large buildings the main problem tends to be keeping them cool in summer

  20. 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