Abstract
A number of ground systems cannot be categorized either as open or as closed. Such a system is the standing column well (SCW) shown in Fig. 7.1, where water is pumped from the bottom of the well to the heat pump. The exiting water is percolated through gravel in the annulus of the well in order to absorb heat. Standing wells are typically 15 cm in diameter and may be as deep as 500 m.
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References
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© 2013 Springer-Verlag London
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Lee, K.S. (2013). Standing Column Well. In: Underground Thermal Energy Storage. Green Energy and Technology. Springer, London. https://doi.org/10.1007/978-1-4471-4273-7_7
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DOI: https://doi.org/10.1007/978-1-4471-4273-7_7
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