Under floor cooling in nZEB.

Number: pap. n. 103

Author(s) : SØNDERBY NIELSEN L., HANSEN J., KOJO M., et al.


Low Energy construction methods typically imply that significant cooling loads are introduced. Building simulations as well as experiences from real houses have indicated cooling loads of up to 40 W/m2 in Northern European climatic conditions. The paper reviews measured and simulated results of the cooling loads introduced in nZEB buildings. To meet the cooling loads in a sustainable way it is suggested to use under-floor cooling with a ground heat exchanger as a heat sink. The solution has been implemented and measured using vertical as well as horizontal ground heat exchangers. The results show that such under-floor cooling systems ensure indoor temperatures below 26 °C in all cases regardless of the seasons.

Available documents

Format PDF

Pages: 9 p.


  • Public price

    20 €

  • Member price*

    15 €

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


  • Original title: Under floor cooling in nZEB.
  • Record ID : 30008653
  • Languages: English
  • Subject: Environment
  • 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


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