Operational Challenges of Modern Demand-Control Ventilation Systems: A Field Study

To maintain proper indoor air quality and increase energy efficiency, a demand-control ventilation (DCV) system has become a popular solution. This paper reports the findings of a field study conducted on the performance of the DCV systems in eight public buildings in southern Finland. We conducted...
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Gespeichert in:

Autor*in:	Weixin Zhao [verfasserIn] Simo Kilpeläinen [verfasserIn] Wertti Bask [verfasserIn] Sami Lestinen [verfasserIn] Risto Kosonen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	demand-control ventilation performance of ventilation system public buildings field study

Übergeordnetes Werk:	In: Buildings - MDPI AG, 2012, 12(2022), 3, p 378
Übergeordnetes Werk:	volume:12 ; year:2022 ; number:3, p 378

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/buildings12030378

Katalog-ID:	DOAJ064406229

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language	English
source	In Buildings 12(2022), 3, p 378 volume:12 year:2022 number:3, p 378
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callnumber-first	T - Technology
author	Weixin Zhao
spellingShingle	Weixin Zhao misc TH1-9745 misc demand-control ventilation misc performance of ventilation system misc public buildings misc field study misc Building construction Operational Challenges of Modern Demand-Control Ventilation Systems: A Field Study
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topic_title	TH1-9745 Operational Challenges of Modern Demand-Control Ventilation Systems: A Field Study demand-control ventilation performance of ventilation system public buildings field study
topic	misc TH1-9745 misc demand-control ventilation misc performance of ventilation system misc public buildings misc field study misc Building construction
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title	Operational Challenges of Modern Demand-Control Ventilation Systems: A Field Study
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title_sort	operational challenges of modern demand-control ventilation systems: a field study
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title_auth	Operational Challenges of Modern Demand-Control Ventilation Systems: A Field Study
abstract	To maintain proper indoor air quality and increase energy efficiency, a demand-control ventilation (DCV) system has become a popular solution. This paper reports the findings of a field study conducted on the performance of the DCV systems in eight public buildings in southern Finland. We conducted the measurements in two stages. In the first stage, we made a site visit and measured the airflow rates in the design operation conditions of the chosen space. For the second stage, we left temperature/humidity data loggers to monitor the thermal conditions during the normal operation mode of the space. The results indicate that, out of the eight studied spaces, only one DCV system was performing according to design specifications. While the systems were operating in a suboptimal way, the flaws in functionality were mostly minor, and none of the sites had perceived indoor-air-quality- and/or thermal-condition-related problems during the time of measurement. Nonetheless, this result shows that the potential benefits of DCV were partially lost due to malfunctioning systems. Additionally, by only monitoring room air temperature (or IAQ) without airflow rate measurements in different operation modes, it is not possible to conclude whether the DCV system works properly or not.
abstractGer	To maintain proper indoor air quality and increase energy efficiency, a demand-control ventilation (DCV) system has become a popular solution. This paper reports the findings of a field study conducted on the performance of the DCV systems in eight public buildings in southern Finland. We conducted the measurements in two stages. In the first stage, we made a site visit and measured the airflow rates in the design operation conditions of the chosen space. For the second stage, we left temperature/humidity data loggers to monitor the thermal conditions during the normal operation mode of the space. The results indicate that, out of the eight studied spaces, only one DCV system was performing according to design specifications. While the systems were operating in a suboptimal way, the flaws in functionality were mostly minor, and none of the sites had perceived indoor-air-quality- and/or thermal-condition-related problems during the time of measurement. Nonetheless, this result shows that the potential benefits of DCV were partially lost due to malfunctioning systems. Additionally, by only monitoring room air temperature (or IAQ) without airflow rate measurements in different operation modes, it is not possible to conclude whether the DCV system works properly or not.
abstract_unstemmed	To maintain proper indoor air quality and increase energy efficiency, a demand-control ventilation (DCV) system has become a popular solution. This paper reports the findings of a field study conducted on the performance of the DCV systems in eight public buildings in southern Finland. We conducted the measurements in two stages. In the first stage, we made a site visit and measured the airflow rates in the design operation conditions of the chosen space. For the second stage, we left temperature/humidity data loggers to monitor the thermal conditions during the normal operation mode of the space. The results indicate that, out of the eight studied spaces, only one DCV system was performing according to design specifications. While the systems were operating in a suboptimal way, the flaws in functionality were mostly minor, and none of the sites had perceived indoor-air-quality- and/or thermal-condition-related problems during the time of measurement. Nonetheless, this result shows that the potential benefits of DCV were partially lost due to malfunctioning systems. Additionally, by only monitoring room air temperature (or IAQ) without airflow rate measurements in different operation modes, it is not possible to conclude whether the DCV system works properly or not.
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title_short	Operational Challenges of Modern Demand-Control Ventilation Systems: A Field Study
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