.BuildingSystems.Fluid.Geothermal.Borefields.BaseClasses.PartialBorefield

Information

This model simulates a borefield containing one or multiple boreholes using the parameters in the borFieDat record.

Heat transfer to the soil is modeled using only one borehole heat exchanger (To be added in an extended model). The fluid mass flow rate into the borehole is divided to reflect the per-borehole fluid mass flow rate. The borehole model calculates the dynamics within the borehole itself using an axial discretization and a resistance-capacitance network for the internal thermal resistances between the individual pipes and between each pipe and the borehole wall.

The thermal interaction between the borehole wall and the surrounding soil is modeled using BuildingSystems.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.GroundTemperatureResponse, which uses a cell-shifting load aggregation technique to calculate the borehole wall temperature after calculating and/or read (from a previous calculation) the borefield's thermal response factor.

Contents

Name	Description
Medium	Medium in the component

Revisions

• April 9, 2021, by Michael Wetter:
  Corrected placement of each keyword.
  See Buildings, PR #2440.
• August 25, 2020, by Filip Jorissen:
  Switched port connections for masFloDiv. See #41.
• March 24, 2020, by Damien Picard:
  Propagated flowReversal into masFloDiv and masFloMul.
• June 7, 2019, by Massimo Cimmino:
  Converted instances that are not of interest to user to be protected.
• June 4, 2019, by Massimo Cimmino:
  Added an output for the average borehole wall temperature. See #1107.
• April 11, 2019, by Filip Jorissen:
  Added choicesAllMatching for borFieDat. See #1117.
• January 18, 2019, by Jianjun Hu:
  Limited the media choice to water and glycolWater. See #1050.
• July 2018, by Alex Laferrière:
  Changed into a partial model and changed documentation to reflect the new approach used by the borefield models.
• July 2014, by Damien Picard:
  First implementation.