Share

Simulation of the energy performance of a GEOTABS building: a case study.

Number: pap. 413

Author(s) : PARYS W., HOOGMARTENS J., HELSEN L., et al.

Summary

In this research, a case study office building equipped with a geothermal heat pump combined with concrete core activation (denoted further as TABS, Thermally Activated Building Systems), or GEOTABS building, is modelled in detail, including an equivalent submodel of the TABS and a calibrated ground storage submodel. The model is validated with measurement data. This integrated model of building and HVAC system is used to evaluate monthly efficiencies at the building level. Satisfactory correlations of the generation and system efficiency with the heat-balance ratio are found. The system efficiency of the TABS is found to be relatively low overall due to difficult control of the slow reacting system. Nevertheless, the energy use is still very low, due to high generation efficiencies of the geothermal heat pump and free cooling, where cold is extracted from the ground through direct heat exchange. The auxiliary energy use for fans and distribution pumps represents a large share of the total energy use in low-energy buildings and should be a main focus point during future design.

Available documents

Format PDF

Pages: 10 p.

Available

  • Public price

    20 €

  • Member price*

    15 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Simulation of the energy performance of a GEOTABS building: a case study.
  • Record ID : 30009010
  • Languages: English
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

Links


See other articles from the proceedings (424)
See the conference proceedings

Indexing