Performance evaluation of a direct ground-coupled self-regulating active chilled beam system
Artikel i vetenskaplig tidskrift, 2020
The results show that the system is capable of supplying the building with enough cooling to not exceed desired indoor air temperature levels. It is also concluded that the self-regulation kept the indoor air temperature satisfactory uniform. The difference between the highest and lowest temperature is 1.9 K on average and below 2.4 K during 90% of the time. Regarding stability, the least stable temperature recorded has a standard deviation of 0.8 K while the average standard deviation is less than 0.5 K. The indoor air temperature during summer is about 2 K lower than suggested by standards. This calls for conducting a thermal comfort survey and may be remedied by increasing the chilled water temperature. To increase the performance of the system, the ground is cooled during winter by preheating the supply air. During 2018, slightly more cooling was extracted in the summer than recharged during winter.
High temperature cooling
Self-regulation
Direct ground-coupling
Active chilled beams
Författare
Peter J Filipsson
Chalmers, Arkitektur och samhällsbyggnadsteknik, Installationsteknik
Anders Trüschel
Chalmers, Arkitektur och samhällsbyggnadsteknik, Installationsteknik
Jonas Gräslund
Chalmers, Arkitektur och samhällsbyggnadsteknik, Installationsteknik
Jan-Olof Dalenbäck
Chalmers, Arkitektur och samhällsbyggnadsteknik, Installationsteknik
Energy and Buildings
0378-7788 (ISSN)
Vol. 209 109691Ämneskategorier
Energiteknik
Byggproduktion
Annan naturresursteknik
Styrkeområden
Energi
DOI
10.1016/j.enbuild.2019.109691