Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Fener: A radiance-based modelling approach to assess the thermal and daylighting performance of complex fenestration systems in office spaces

: Bueno, B.; Wienold, J.; Katsifaraki, A.; Kuhn, T.E.

Preprint urn:nbn:de:0011-n-3322909 (771 KByte PDF)
MD5 Fingerprint: d5b47625ce1a8a234ce07c88f05b6a35
Created on: 16.8.2019

Energy and buildings 94 (2015), pp.10-20
ISSN: 0378-7788
Journal Article, Electronic Publication
Fraunhofer ISE ()
Thermische Anlagen und Gebäudetechnik; energieeffizientes Gebäude; Fassaden und Fenster; solare Gebäudehülle

A new Radiance-based modelling approach called Fener is presented. The motivation is to be able to perform detailed analyses of complex fenestration systems (CFS) from the energetic and daylighting points of view in a computationally efficient manner, so the benefits of innovative products can be easily quantified. The model couples daylighting and thermal simulations in a time-step basis, so that shading control strategies that depend on thermal variables, such as indoor air temperature and energy load, can be simulated without iterating between full-year simulations of a thermal model and a daylighting model. Fener is a single-zone energy model that uses the three-phase method and bi-directional scattering distribution functions (BSDF) to predict the transmitted solar irradiance and indoor illuminance of office spaces with CFS. An evaluation of the model is presented. Fener is tested against EnergyPlus and classic Radiance for different fenestration systems and sky conditions. Cooling and heating energy demand, transmitted solar irradiance and indoor illuminance are compared. As an exemplary application, Fener is used to assess the performance of an innovative perforated lamella system together with a control strategy that depends on indoor air temperature.