Energy savings and thermal comfort with ventilation radiators: a dynamic heating and ventilation system
2007 (English)In: Proceedings of Clima 2007 WellBeing Indoors, 2007Conference paper (Other academic)
Studies indicate that a high ventilation rate with fresh air supply directly from outdoors gives better thermal comfort conditions, less SBS (Sick Building Syndrome) symptoms and increased work productivity. The drawbacks with a high ventilation rate in natural or exhaust ventilated buildings are normally increased energy use for heating and cold air draught. Such problems may be minimized with ventilation radiators, radiators where cold ventilation air is brought directly from outdoors through a wall channel into the radiator where it is heated before entering the room.
This paper discusses advantages with ventilation radiators in comparison to those of traditional heating systems. Focus has been on energy aspects and thermal comfort. The main conclusions are that ventilation radiators may give a stable and uniform thermal indoor climate. The high thermal gradient between cold ventilation air and the radiator surface inside the ventilation channel also makes the ventilation radiator more efficient than other systems. A method to vary indoor climate on a daily basis according to where people stay is proposed for additional energy savings with ventilation radiators. The deductions were based on results from CFD simulations in a well validated office model.
Place, publisher, year, edition, pages
Ventilation radiator, CFD, thermal comfort, energy consumption
IdentifiersURN: urn:nbn:se:kth:diva-8216OAI: oai:DiVA.org:kth-8216DiVA: diva2:13476
Clima 2007, 10-14 June, Helsinki, Finland
QC 201011182008-04-092008-04-092011-03-29Bibliographically approved