The effect of false ceilings on the performance of passive chilled beams
2007 (English)In: IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, 2007, 77-83 p.Conference paper (Refereed)
Sweden is a country with a severe winter climate. Nevertheless, cooling during working hours is often required all year around in offices. Frequently passive chilled beams are used for providing additional cooling. Often the chilled beams are installed above a false ceiling and thereby the room is subdivided into two compartments. From the chilled beam a plume is generated. Mock up air (return air) is required to flow into the upper compartment to substitute the airflow generated by the chilled beam. Therefore purpose provided openings are installed in the false ceiling. The openings constitute a resistance to the flow and the locations of the openings affect the flow pattern. The overall performance was studied in a mock up of a real office and it was found that the cooling capacity was affected by the size and location to the openings. To achieve efficient cooling two conditions shall be fulfilled: a) The return opening area shall at least be equal to the horizontal area of the chilled beam b) The return air openings shall be located at the perimeter of the room.
Place, publisher, year, edition, pages
2007. 77-83 p.
Cooling capacity, False ceilings, Passive chilled beams
Other Civil Engineering
IdentifiersURN: urn:nbn:se:kth:diva-154697ScopusID: 2-s2.0-84857327731ISBN: 978-486163070-5OAI: oai:DiVA.org:kth-154697DiVA: diva2:758813
6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007, 28 October 2007 through 31 October 2007, Sendai, Japan
QC 201410282014-10-282014-10-272014-10-28Bibliographically approved