| Issue |
E3S Web Conf.
Volume 172, 2020
12th Nordic Symposium on Building Physics (NSB 2020)
|
|
|---|---|---|
| Article Number | 09006 | |
| Number of page(s) | 8 | |
| Section | Ventilation performance | |
| DOI | https://doi.org/10.1051/e3sconf/202017209006 | |
| Published online | 30 June 2020 | |
Impact of Typical Faults Occurring in Demand-controlled Ventilation on Energy and Indoor Environment in a Nordic Climate
1 SINTEF Community, Architectural Engineering, 0373 Oslo, Norway
2 Aalborg University, Civil Engineering Department, 9220 Aalborg East, Denmark
3 OsloMet – Oslo Metropolitan University, 0130 Oslo, Norway
* Corresponding author: kamilla.andersen@sintef.no
This study evaluates typical faults occurring in demand-controlled ventilation (DCV) system and the impact on three output results: energy use, thermal comfort, and indoor air quality. The methodologies used in this study were qualitative interviews of selected Norwegian Heating Ventilation Air Condition (HVAC) system experts and numerical modeling using the building performance simulation tool IDA ICE. The faults deduced from the qualitative interviews were modeled as the fault's different consequences to account for a large variety of faults. With a Norwegian school classroom as a case study, a local approach applying a one-at-a-time (OAT) simulation was used to perform an analysis of the extreme fault conditions that can occur. The results from the fault modeling demonstrated that greater attention is needed to avoid faults in the HVAC systems due to its impact on the indoor environment quality and energy efficiency of buildings.
© The Authors, published by EDP Sciences, 2020
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