Central automatic control or distributed occupant control for better indoor environment quality in the future

Jørn Toftum (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Based on a database accumulated from several recent surveys of office buildings located in a temperate climate (Denmark), the effect on occupant perceptions and symptom prevalence was compared in buildings with natural and mechanical ventilation in which earlier studies have shown a discrepancy in the degree of perceived control. The database was composed of 1353 responses obtained in 25 buildings of which 15 had mechanical ventilation (997 responses) and 9 had natural ventilation (275 responses). Analysis of occupant responses, after grouping according to categories determined by the degree of satisfaction with the perceived control, showed that the degree of control satisfaction, but rarely building category (natural vs. mechanical ventilation), affected the prevalence of adverse perceptions and symptoms. Thus, the degree of control, as perceived by occupants, was more important for the prevalence of adverse symptoms and building related symptoms than the ventilation mode per se. This result indicates that even though the development and application of new indoor environment sensors and HVAC control systems may allow for fully automated IEQ control, such systems should not compromise occupants' perception of having some degree of control of their indoor environment.
Original languageEnglish
Title of host publicationProc. of International Symposium on the Interaction between human and Building Environment
Number of pages216
Place of PublicationYonsei University, Seoul, Korea
PublisherHuman and Building Environment Laboratory, Yonsei University
Publication date2008
Pages72-88
Publication statusPublished - 2008
EventInternational Symposium on the Interaction between human and Building Environment - Seoul, Korea
Duration: 1 Jan 2008 → …

Conference

ConferenceInternational Symposium on the Interaction between human and Building Environment
CitySeoul, Korea
Period01/01/2008 → …

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