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Energy efficient surfaces on building sandwich panels: a dynamic simulation model
Högskolan Dalarna, Akademin Industri och samhälle, Energi och miljöteknik.
Högskolan Dalarna, Akademin Industri och samhälle, Energi och miljöteknik.
Högskolan Dalarna, Akademin Industri och samhälle, Energi och miljöteknik.
2011 (engelsk)Inngår i: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 43, nr 12, s. 3736-3736Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The choice of building envelope is critical for the energy performance of buildings. The major part of the energy used by a building during its lifetime is used for maintaining a suitable interior thermal climate under varying exterior conditions. Although exterior heat radiation properties (i.e. total solar reflectivity and long wave thermal emissivity) have been well accepted to have a large impact on the need for active cooling in warmer climate, the effect of a reduced thermal emissivity on interior surfaces on the building thermal energy flux is rarely studied. This paper addresses the sensitivity of the thermal energy flux through a sandwich panel, by systematically varying the surface thermal emissivity (both interior and exterior) and total solar reflectance of exterior surface, for three geographical locations: southern, middle and northern Europe. A model is introduced for calculating the effect of both interior and exterior optical properties of a horizontal roof panel in terms of net energy flux per unit area. The results indicate potential energy saving by the smart choice of optical properties of interior and exterior surfaces.

sted, utgiver, år, opplag, sider
2011. Vol. 43, nr 12, s. 3736-3736
Emneord [en]
Total solar reflectivity, Reflective coating, Thermal emissivity, Building heat flux, Energy efficiency
HSV kategori
Forskningsprogram
Energi, skog och byggd miljö, Rullbelagt stål som ytbeklädnad på energieffektiva byggnader
Identifikatorer
URN: urn:nbn:se:du-5775DOI: 10.1016/j.enbuild.2011.05.026ISI: 000294834900048OAI: oai:dalea.du.se:5775DiVA, id: diva2:520412
Tilgjengelig fra: 2011-09-01 Laget: 2011-09-01 Sist oppdatert: 2017-12-07bibliografisk kontrollert

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