Air Distribution in a Room with an Active Chilled Beam - and a Comparison with other Ventilation Systems

Peter Vilhelm Nielsen, Li Liu, Bartosz Kozlowski, Sandijs Vasilevskis, Rasmus Lund Jensen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review


Active chilled beam cooling is a solution with an efficient use of space due to the high heat capacity of water used as heat transfer medium. This paper describes the prediction of the room air distribution in a room with an active chilled beam. It also shows a design chart that makes it possible to assess variables such as air quality, air velocity and the temperature gradient as a function of flow rate and temperature difference in the supply system and this paper gives the limits for the use of the system.

The paper shows that an active chilled beam system can generate a thermal comfort level at a given heat load and heat load distribution that can be compared with the thermal comfort obtained by the different mixing ventilation systems. The air distribution is dependent of the heat load distribution, and the system has a limited capacity with respect to fresh air supply. The system is compared with seven other air distribution systems. The paper is based on both full-scale measurements and CFD predictions.
TitelRoomvent & Ventilation Proceedings
RedaktørerRisto Kosonen, Mervi Ahola, Jarkko Narvanne
ForlagSIY Indoor Air Information Oy
ISBN (Elektronisk)978-952-5236-48-4
StatusUdgivet - 2018
BegivenhedRoomvent 2018: International Conference on Air Distribution in Rooms - Aalto University, ,Finland, Espoo, Finland
Varighed: 2 jun. 20185 jun. 2018


KonferenceRoomvent 2018
LokationAalto University, ,Finland

Bibliografisk note

Track 2 – Air Distribution: Air Distribution (AD1)


  • Room air distribution
  • Active chilled beam
  • Comfort conditions
  • Design chart
  • CFD


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