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Transcript of Passive solar design Use of the natural movement of heat and air to maintain comfortable...
Passive solar design
Use of the natural movement
of heat and air to maintain
comfortable temperatures, operating with little
or no mechanical assistance.
http://www.consumerenergycenter.org/home/construction/solardesign/index.html
Passive Solar is the
aikido of building design
Aikido leads towards the integration of mind, body, and spirit - towards making us complete human beings,
which not only benefits us, but benefits the people around us.
Everything in Aikido training is meant to develop not only a strong individual, but one with the
wisdom and energy to positively benefit society.
http://www.aikidoconnection.com/aikidobenefits.html
http://www.consumerenergycenter.org/home/construction/solardesign/index.html
Passive solar design
2- Overhangs and Shading
Five Principles Of Design:
1- Orientation
4- Windows
3- Insulation
5- Thermal Mass
WWW.GreenPassiveSolar.com
OrientationBuild within 15 degrees of
South
Right shape and proper window placement
Longer dimension of the building faces south
Hills, Trees, Neighbors
Consider your terrain:
Properly laid out and designed, a passive solar home can cut the
building’s energy use up to 30-40%
http://www.consumerenergycenter.org/home/construction/solardesign/orientation.html
overhangs and shading
The temperature inside a building may increase as much as 20 degrees or more if E-
W windows and walls are not shaded.http://www.consumerenergycenter.org/home/construction/
solardesign/overhangs.html
Landscaping: Trees, vine covered trellises
Shade: insulated drapes or shutters, exterior shades, awnings.
Overhangs: Summer/Winter Sun Angles70/30 degrees
For a tight budget, think of south and west shading as a priority.
overhangs and shading
http://windows.lbl.gov/daylighting/designguide/section5.pdf
Who knows what savings lurks in the depth of the shadows?
http://www.grinningplanet.com/articles/energy/wall-shade-trellis-save-energy-air-conditioning-bill.htm
InsulationYou can be too rich or too poor, but
you can never have enough insulation.
Richard Komp
“Flipping” a house or building for the long-term. Passing your stewardship on
to the next person, and generation.
The best way to predict your future
is to create it.
Windows
Low emissivity glass can increase energy savings by 15 - 30%
GREAT SITE: http://www.bae.uky.edu/energy/residential/guide/guidehtml/guidep53.htm
Passive Solar Window Areas10% south side to building areaLimited north and west windows
Double-paned Low-E windowsLet the sun’s radiation IN and use shading in hotter
monthshttp://www.greenhomebuilding.com/QandA/solarheat/glazing.htm
Thermal Mass
Thermal mass on the interior absorbs the heat and radiates it back at night.
Thermal mass is a solid or liquid material that will absorb and store
warmth until it is needed.
What truly sets a passive solar home apart from a traditional home is the thermal mass.
Site for great pictures:http://passivesolar.sustainablesources.com/
Trombe Wall
http://www.azsolarcenter.org/solar-in-arizona/virtual-tours-galleries/passive-trombe-pv-a-more.html
Greenhouses
http://www.azsolarcenter.org/solar-in-arizona/virtual-tours-galleries/passive-trombe-pv-a-more.html
http://www.multiwallsystems.com/Oregon%20State.JPG
Change occurs
at the speed of thought
If you can’t afford solar panels, you can afford new and retrofit solar design.
We can no longer not afford to build sound solar principles into all of our housing projects.
Be a part of the solution for long-term environmental sustainability - there is no
place like home.