Exploring the effect of carbon dioxide demand controlled ventilation system on air humidity
Institute of Technology, Estonian University of Life Sciences, Kreutzwaldi 56,EE51014 Tartu, Estonia; *Correspondence: mart.reinvee@emu.ee
Abstract:
Earlier studies have indicated that elevated or inadequate levels of carbon dioxide(CO2) in indoor air impairs users in the performance of decision-making. For this reason andalso for potential energy consumption reduction carbon dioxide based regulated demandcontrolled ventilation (DCV) systems are used. Although DCV systems use less electricalenergy than conventional ventilation systems, there is a problem in colder climates with thelowered humidity of air. It has been discovered in earlier studies that even brief exposure torelatively dry air has an impact on voice control parameters. In the current article, the humiditygains from ordinary usage of a faculty building, where a DCV system and room basedtemperature control is utilised, are examined. For that, the changes in the specific indoorhumidity were compared to the changes in the specific ambient humidity.
Key words:
absolute and relative humidity, CO2 demand-controlled ventilation, indoor air-