Evaluation of Thermal Environment and Indoor Air Quality in University Libraries in Vienna

Abstract

This contribution presents the results of an indoor environmental study of university libraries in Vienna. Indoor climatic parameters (air temperature, relative humidity, and CO2 levels) in the main spaces of four different library buildings (two historic buildings from the 19th century, two buildings from the late 20th century) were monitored over a period of ten months. Furthermore, to obtain a general impression of the quality of the visual environment in these buildings, illuminance levels at selected locations were measured. The measured data was analyzed and enriched with additional calculated indicators (e.g., PMV/PPD). To put the monitored data in the proper context, recorded outdoor climate data was also taken into consideration. The findings point to a certain overheating risk during the summer period as well as increased CO2 levels during the winter period.