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Passive Design - Non techological option by Mind Map: Passive Design - Non techological option
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Passive Design - Non techological option

Passive Solar

Asses to the sun when sitting down in a room

Most windows should face south 75%

Window area = 15%-30% of floor area

Requires good insulation! as glass is a poor insulator

Thermal Mass

The ability of a material to absorb heat. Materials with a high thermal mass operate much like thermal sponges, because they cool a building during the summer by absorbing heat from the sun and releasing it over a period of time.

Refers to the solid part of a building, such as block or brickwork, in which heat energy, from the sun or other sources, is absorbed, stored and then gradually given off.

Buffer Zones

Intemediate spaces which mediate between inside and outside - will have an intermediate temperature

Conservatory - to the south, Acts as an airlock preventing drafts from the front door entering the whole house., Solar gain in summer. as much as possible of the South Elevation should be covered with a conservatory in order to maximise effectiveness

Garage or storeroom to the north, Colder because heat is unimportant here

Entrance Lobby, Acts as an airlock preventing drafts from the front door entering the whole house., needs to be big enough to stop both doors being opened at once

Double Skin facade

Atrium spaces

Stack effect ventilation

Towers

Atria

conservatory

Ducts

Tubes with hats on which poke out of the roof will lead to either the kitchen or bathroom (odour creating areas), Should be as vertical as possible any bends kept shallow, Ducts atleast 150mm dia 200mm preferable

Cowls

Natural Ventilation

Fully Openable windows

Not all parts of all windows need open, aim is 5% of floor area = openable window area

Shutters

Reasons

Provide oxygen

Remove CO2 from respiration

Remove pollutants from the air, Smokers, Gas Cookers & other cooking fumes, cocktail of gases from synthetic products, Areosoles, Creates a healthyier environment for humans

Raise/lower the air temp.

between 5 and 10 litres of air per person per secound is good amound 0.3 lappps is the bare minium

This is the intentional replacement of stale air with fresh air.

Infiltration is the unwanted leakage of air through gaps in the building envelope and is be avioded, Brickwork performs better than timber framing here

Daylighting

White ceilings

White or bright surfaces

High Ceilings

High windowheads

Skylights - a view of the sky

Splayed reveals

Passive cooling

Shading above windows

Prevents overheating

Prevents the need for air conditioning

Reduces Glare

*Retractable shades much better for UK climate

Thermal mass - to stabalise temporature

Ground source heat pump

Ventilation paths (see passive ventilation = interated topic)

Labourithys