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Space heating at low temperature difference between heating unit and ambient air
KTH, Superseded Departments, KTH Syd.ORCID iD: 0000-0003-1882-3833
KTH, Superseded Departments, KTH Syd.
KTH, Superseded Departments, KTH Syd.
2004 (English)In: Proceedings of the 9th International Conference on Air Distribution in Rooms, Coimbra, Portugal 5 - 8 Sept., 2004, 2004Conference paper, Published paper (Refereed)
Abstract [en]

Rising energy prices have contributed to the development of heat pump-based heating systems in Sweden. Low flow temperature in the secondary heat distribution system to rooms is a requirement for energy-efficient systems. This increases the thermal efficiency of the heat pump and decreases thermal losses in the distribution system. Flow temperatures in water-based systems for heat distribution in buildings have been decreased from 55°C to temperatures around 30°C. This is to maximize the efficiency of heating systems that are based on heat pump technology. Different technical solutions have been suggested to guarantee space-heating requirements with low temperature difference between heating units and ambient air. Floor heating has in many cases been considered a good option, and the popularity of such systems has dramatically increased. Complicated installation work, moisture problems and slow thermal control with floor heating are reasons enough to find alternative low-temperature units for heat distribution in rooms. This may result in a combined heating and ventilation system that operates with forced convection.

Place, publisher, year, edition, pages
2004.
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-80002OAI: oai:DiVA.org:kth-80002DiVA: diva2:495917
Conference
the 9th International Conference on Air Distribution in Rooms, Coimbra, Portugal 5 - 8 Sept., 2004
Note
QC 20120305Available from: 2012-02-09 Created: 2012-02-09 Last updated: 2012-03-05Bibliographically approved

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