BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.InternalResistancesOneUTube

# .BuildSysPro.IBPSA.Fluid.Geothermal.Borefields.BaseClasses.Boreholes.BaseClasses.InternalResistancesOneUTube

Internal resistance model for single U-tube borehole segments.

## Information

This model simulates the internal thermal resistance network of a borehole segment in the case of a single U-tube borehole using the method of Bauer et al. (2011) and computing explicitely the fluid-to-ground thermal resistance Rb and the grout-to-grout resistance Ra as defined by Claesson and Hellstrom (2011) using the multipole method.

#### References

J. Claesson and G. Hellstrom. Multipole method to calculate borehole thermal resistances in a borehole heat exchanger. HVAC&R Research, 17(6): 895-911, 2011.

D. Bauer, W. Heidemann, H. Müller-Steinhagen, and H.-J. G. Diersch. Thermal resistance and capacity models for borehole heat exchangers . International Journal Of Energy Research, 35:312-320, 2011.

## Revisions

- July 5, 2018, by Alex Laferrière:
  Extended the model from a partial class.
- June, 2018, by Damien Picard:
  First implementation.

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