2019 Volume 25 Issue 59 Pages 255-259
In recent years, as the need for development of low-carbon architecture increases, practical use of the natural energy that surrounds buildings is attracting attention. Heat/cool trench systems make use of one such natural energy, subterranean heat. These systems reduce the fresh air load by introducing outside air through trench that pass beneath the bottom floor-slab before blowing the air indoors. This study involves a year-round measurement survey of outside air and indoor outlet temperature of indirect and direct subterranean heat use systems. The thermal effect of an indirect subterranean heat use system is evaluated through comparison between both.
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