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A double envelope house is a passive solar house design which collects solar energy in a solarium and passively allows the warm air to circulate around the house between two sets of walls, a double building envelope. This design is from 1975 by Lee Porter Butler in the United States.
In passive solar building design, windows, walls, and floors are made to collect, store, reflect, and distribute solar energy, in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the use of mechanical and electrical devices.
Passive solar building design and energy-efficient landscaping support the low-energy house in conservation and can integrate it into a neighborhood and environment. Following passive solar building techniques , where buildings are compact in shape to reduce surface area and principal windows oriented towards the equator (south in the Northern ...
Today, the Trombe wall continues to serve as an effective strategy of passive solar design. The first well-known example of a Trombe wall system was used in the Trombe house of Odeillo, France in 1967. [13] [3] The black painted wall is constructed of approximately 2 foot thick concrete with an air space and a double glazing on its exterior ...
The simplest solar heat water system is to place a hot water storage tank towards the Sun and paint it black. A thick ground of rock in a greenhouse will keep some heat through the night. The rock will absorb heat in the day and emit it in the night. Water has the best thermal capacity for a common material and remains a sure value.
Earth sheltering is often combined with solar heating systems. Most commonly, the utilization of passive solar design techniques is used in earth shelters. In most of the Northern Hemisphere, a south-facing structure with the north, east, and west sides covered with earth is the most effective application for passive solar systems. A large ...