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Transpired Solar Collectors, 2 PDH

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Transpired Solar Collectors

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Transpired Collectors (Solar Preheaters for Outdoor Ventilation Air)

The million Solar Roofs Initiative aims to install 1 million solar energy systems on residential, commercial, and public-sector buildings by 2010. Twenty thousand of those systems will be installed on Federal buildings. In support of the Initiative, and as part of a continual effort to ensure U.S. buildings are energy efficient and environmentally sustainable, the U.S. Department of Energy's Federal Energy Management Program (FEMP) will help install those solar systems targeted for the Federal sector.

A transpired solar collector reduces the load on a building’s heating system by heating intake air with solar energy. It preheats the ambient air by up to 40°F, reducing all or aportion of the load on a heating system during daylight hours. Although the transpired collector may not be able to achieve the required indoor air temperature on cloudy days or when the outside temperature plummets, it provides useful energy and reduces utility bills.

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Transpired Solar Collectors

Course Author Profile: Harlan Bengson, Ph, PE