Thermal flywheel effect

Thermal flywheel effect

The thermal flywheel effect, sometimes also referred to as "Thermal Momentum", is a term used to describe the property of a material to remain at a given temperature. It is generally applied to buildings or construction materials. This is distinct from a materials insulative value. A building's average internal temperature can stay stable much longer due to the thermal flywheel effect.

Materials, higher to lower "flywheel effect"
#Packed Earth
#Brick
#Water
#Hardwood lumber or timbers
#Softwood & construction lumber
#Steel
#Insulation
#Air
#Aluminum

This is only a general classification, as the quantity (mass) and thermal conductivity, and arrangements of materials all have an effect on this.

ee also

* Specific heat capacity
* Thermal mass

Bibliography

* [http://www.dennisrhollowayarchitect.com/html/SolarDesignb.html Holloway on solar design]
* [http://www.terra-ram.com/thermal_performance.htm evaluating compressed earth block walls]
* [http://www.eere.energy.gov/buildings/design/integratedbuilding/buildingenvelope.cfm U.S. DOE, Building Technologies, Building Envelope]
* [http://www.theyellowhouse.info/eco-prin/princip.html Principles of Eco Design]


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