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Brief Published: 26 Jan 2011

Body Heat

Extra

Swedish real estate company Jernhusen is harnessing the heat from Stockholm Central Station’s 250,000 daily commuters to heat an office building in the city. Excess heat will be recovered by heat exchangers in the station’s ventilation system where it will be converted into water. It will then be pumped across the road to the office’s heating system.

Sweden’s low winter temperatures are ideal for heat absorption from a low-grade heat source such as the human body and the technology helps to lower the heating costs of the office building by up to 25%.

While the energy recovery system is not unique, using body heat from one building to heat another is new. Internationally, architects and planners are looking into urban heat distribution networks to reduce waste and combat ever-rising fuel prices.

The work began in April 2009 and is scheduled for completion in June 2012.

Jernhusen

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