Occupant perception of spectral light content variations due to glazing type and internal finish

SBE19 - Resilient Built Environment for Sustainable Mediterranean Countries

生态环境科学;政治学社会学

Potonik, J.^1 ; Cadena, J.D.B.^2 ; Koir, M.^1 ; Poli, T.^2

Department of Buildings and Constructional Complexes, Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, Ljubljana

SI-1000, Slovenia^1

Department of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, via Ponzio 31, Milan

20133, Italy^2

关键词: Building environment;    Environmental conditions;    Human circadian system;    Indoor environmental quality;    Lighting conditions;    Occupant perception;    Performance evaluation criteria;    Spectral composition;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/296/1/012033/pdf
DOI  :  10.1088/1755-1315/296/1/012033

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Indoor Environmental Quality (IEQ) is a key issue in the design and renovation of any indoor building environment. It is comprised of different aspects (e.g. visual, thermal, acoustic comfort, etc.), which directly affect the building occupants' wellbeing. Studies on this topic have grown rapidly in recent years, as the time that occupants spend indoors is increasing. In this regard, indoor luminous conditions are crucial for providing sufficient task illuminance as well as to stimulate the human circadian system. Insufficient lighting conditions have been proven to be related with reduced productivity/learnability, mood swings and health disorders, thus emphasizing the necessity for further research in this field. Therefore, proper performance evaluation criteria for managing and optimizing lighting spectral composition is needed. For instance, indoor lighting conditions can be evaluated by quantity, intensity, and/or uniformity, but also by spectral content, which determines the energy conveyed and the level at which the human body is stimulated. This spectral content can vary depending on the preferred or prevalent light source, interior finishes and glazing properties generating a singular indoor lighting environment. Thus, a preliminary study on the variation of the indoor daylight spectral content is conducted using a scaled model, applying various glazing types and interior finishes. Then, daylight simulations are performed on a calibrated virtual model to evaluate the effect of various environmental conditions. Results show a considerable impact of the interior finishes as well as glazing type on the attained circadian potential of studied indoor environment.