.AixLib.Fluid.DistrictHeatingCooling.Pipes.PlugFlowPipeEmbedded

Information

This model represents an extension of AixLib.Fluid.DistrictHeatingCooling.Pipes.PlugFlowPipe by modelling the thermal capacity of the surrounding soil. For the description of the cylindric heat transfer within the surrounding soil AixLib.Utilities.HeatTransfer.CylindricHeatTransfer is used. The considered layer thickness of the surrounding soil is set as a parameter and divided into three capacities. For the heat transfer calculation within the material/soil, the density, the specific heat capacity, the thickness of the considered soil layer and the thermal conductivity of the material are used.

The default values for the soil are for sandy soil with clay content and based on: "Simulationsmodell Erdwärmekollektor zur wärmetechnischen Beurteilung von Wärmequellen, Wärmesenken und Wärme-/Kältespeicher" by Berd Glück

References

Full details on the model implementation and experimental validation can be found in:

van der Heijde, B., Fuchs, M., Ribas Tugores, C., Schweiger, G., Sartor, K., Basciotti, D., Müller, D., Nytsch-Geusen, C., Wetter, M. and Helsen, L. (2017).
Dynamic equation-based thermo-hydraulic pipe model for district heating and cooling systems.
Energy Conversion and Management, vol. 151, p. 158-169. doi: 10.1016/j.enconman.2017.08.072.

• November 21, 2019, by Nils Neuland:
  Model is now using PlugFlowPipe model from DistrictHeatingCooling
• July, 2018 by Tobias Blacha:
  First implementation.