Cui, Ping; Li, Xin; Man, Yi; Fang, Zhaohong - In: Applied Energy 88 (2011) 11, pp. 4113-4119
This paper investigates the transient heat conduction around the buried spiral coils which could be applied in the ground-coupled heat pump systems with the pile foundation as a geothermal heat exchanger. A transient ring-coil heat source model is developed, and the explicit analytical solutions...