Sensitivity analysis of important parameters affecting daylight - Assessment of a typical cellular office in Sweden

Abstract: The objective of this thesis was the impact evaluation of several parameters affecting daylight conditions in a typical cellular office in Lund, Sweden. The research approach that was followed consisted of three distinct steps; the literature review in order to specify the dependent and independent variables of the study, the simulation part to produce daylight performance data and the graphical analysis as interpretation of the data produced. The studied independent variables were: orientation, window shape, window size, window position, number of windows, glazing transmittance, window niche, reflectance of the surfaces and obstruction angle. To monitor their performance both dynamic and static indicators were used, generating both expected and unexpected results. Some parameters such as the obstruction angle and the window-to-wall ratio, WWR, showed significant influence on the results. On the other hand, the window niche proved not to have any quantitative impact on office daylighting for the studied room. Considering the number and the shape of windows, for WWRs up until 30 % the best performing cases corresponded to single and square windows. Finally, meaningful correlations between static metrics were found.