Florides, Georgios A.; Christodoulides, Paul; … - In: Applied Energy 102 (2013) C, pp. 364-373
). Multiple ground layers with regard to GHE and the presence of more than one loops in each borehole (multiple U-tubes) are … study of a double U-tube GHE in a single borehole and the assessment of its efficiency with regard to its building cost … developed for energy flows and temperature changes in and around a borehole, when a fluid circulates through single and double U …