Reference : Untersuchung des thermischen Komforts und der Luftqualität an vier neuen energieeffiz...
Scientific journals : Article
Engineering, computing & technology : Energy
Sustainable Development
http://hdl.handle.net/10993/30224
Untersuchung des thermischen Komforts und der Luftqualität an vier neuen energieeffizienten Luxemburger Schulen mit und ohne Lüftungsanlagen
German
[en] Examination of thermal comfort and air quality in four new energy efficient schools in Luxembourg with and without mechanical ventilation
Maas, Stefan mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Brensing, Jessica mailto [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
Flies, Max mailto []
Steffgen, Georges mailto [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE) >]
Feb-2017
Bauphysik
Ernst & Sohn
39. Jahrgang
49-56
Yes (verified by ORBilu)
International
0171-5445
1437-0980
Berlin
Germany
[de] Raumklimakomfort ; Nutzerzufriedenheit ; mechanische versus freie Belüftung in energieeffizienten neuen Schulen
[en] A study was conducted in four new energy efficient schools in Luxembourg with excellent primary energy consumption values, where the indoor thermal comfort and the air quality was assessed by technical measurements and by surveys. Two schools were equipped with mechanical ventilation with heat recovery and two were without, i.e. ventilation there was manually controlled by opening the windows. Further to the C02-concentration as indicator for the air quality all other important comfort parameters were measured, why the well-known indicators according to FANGER could be calculated, i.e. the „Predicted Mean Vote (PMV)“ and the „Predicted Percentage of Dissatisfied (PPD)“. The individual perceived indoor comfort was analyzed by standardized questionnaires for a period of four weeks. One aim of the study was to compare natural ventilation by opening and closing the windows with the mechanical ventilation in all named aspects.
In total there was a good agreement between the measurements and the survey. The results show that in general mechanical ventilation in schools lead to better physical measured values and to better subjective perception of the users. However those buildings suffer from a very low relative humidity, though it is rarely sensed by the occupants. Furthermore, in one of the mechanically ventilated buildings the air velocity was very high and led to draft-perception. The detected air temperature was heterogeneous and independent of the ventilation concept, leading to an individual judgement of PMV for the different buildings. Users should always have the possibility of interaction and control to adjust the indoor climate according to their individual needs and to correct smaller technical shortcomings.
FSTC
University of Luxembourg - UL ; Fonds National de la Recherche - FnR ; Adminsitration des Bâtiments Publics Luxembourg
http://hdl.handle.net/10993/30224
10.1002/bapi.201710004

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
Paper Neue Schulen eingereichte V.pdfAuthor preprint365.67 kBView/Open

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.