The passive house from MIT

12 dicembre 2007
The passive house from MIT

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Under the auspices of the Massachusetts Institute of Technology in Cambridge (MIT), some student volunteers are working in the design and construction of a house whose only source of energy is the sun.

It is a real passive house, as well as light and solar heat there are no other sources of energy for heating,

The house, which began in recent months, the students will participate in the competition for "2007 Solar Decathlon" organized by the Department of Energy of the American government, in which twenty teams from around the world bring their homes passive at the National Mall in Washington, DC, next October.

The passive house designed by the students of MIT called "Solar 7" because it is the seventh time that the prestigious American Institute planned a passive house at 100%.

What made the house passive MIT

A house needs a passive thermal mass, material that absorbs energy from the sun during the day and back at night. In this case it was used a brick wall of glass full of water to achieve the required thermal mass. The water contained in glass bricks (with the addition of a substance which increases the insulation) keeps to a minimum temperature fluctuations inside the house.

The underfloor heating using hot water from solar collectors, and photovoltaic panels to provide electrical needs including recharging the batteries of electric car in the garage. As the house disconnected from the normal electricity grid, obviously needs a battery pack to provide power during the night. The house passive MIT uses 24 batteries capable of storing 70 kWh of electricity, enough to run the house in the absence of sunshine for a couple of days.

In the picture: a glimpse of "solar village" built by the participants contorso "2005 Solar Decathlon" at the National Mall in Washington

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