Cooling and preheating with buried pipe systems: monitoring, simulation and economic aspects

On basis of extensive monitoring and simulation work, we examine the fundamental difference between winter preheating and summer cooling potential of buried pipe systems under Central European climate, as well from an energetic as from an economic point of view. Care is taken to account for exhaustive energy balances, taking into account sensible and latent heat exchanges, as well as diffusion through soil. (C) 2001 Elsevier Science B.V. All rights reserved.