A novel TRNSYS type for short-term borehole heat exchanger simulation: B2G model

Mattia De Rosa*, Félix Ruiz-Calvo, José M. Corberán, Carla Montagud, Luca A. Tagliafico

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


Models of ground source heat pump (GSHP) systems are used as an aid for the correct design and optimization of the system. For this purpose, it is necessary to develop models which correctly reproduce the dynamic thermal behavior of each component in a short-term basis. Since the borehole heat exchanger (BHE) is one of the main components, special attention should be paid to ensuring a good accuracy on the prediction of the short-term response of the boreholes. The BHE models found in literature which are suitable for short-term simulations usually present high computational costs. In this work, a novel TRNSYS type implementing a borehole-to-ground (B2G) model, developed for modeling the short-term dynamic performance of a BHE with low computational cost, is presented. The model has been validated against experimental data from a GSHP system located at Universitat Politècnica de València, Spain. Validation results show the ability of the model to reproduce the short-term behavior of the borehole, both for a step-test and under normal operating conditions.

Original languageEnglish
Pages (from-to)347-357
Number of pages11
JournalEnergy Conversion and Management
Early online date21 May 2015
Publication statusPublished - Aug 2015


  • Borehole heat exchanger
  • Dynamic modeling
  • Ground source heat pump
  • Heating and cooling systems

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment


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