Preview

Author(s):	Bruns, Alfred; Knissel, Jens; Schmidt, Ralf-Gunther
Title:	Vergleichende Untersuchung von VOC-Sensoren
Abstract:	In dem vorliegenden Beitrag wird die Anwendung von VOC-Sensoren zur luftqualitätsgeführten Volumenstromregelung bei Dunstabzugshauben untersucht. Bei Koch- und Garprozessen müssen die VOC-Sensoren hohe Verunreinigungen sowie schnelle und teilweise sprunghafte Signaländerungen detektieren. Untersucht werden fünf unterschiedliche VOC-Sensoren von vier Herstellern. Durch Messungen werden die spezifischen Eigenschaften der VOC-Sensoren analysiert und untereinander verglichen. Die durchgeführten Messungen zeigen, dass ein Vergleich der absoluten Sensorsignale nicht zielführend ist. Werden die Messsignale der einzelnen VOC-Sensoren als Prozentwerte bezogen auf die Differenz von maximalem und minimalem Messwert einer Zeitreihe dargestellt (normiert), weisen vier der fünf Sensoren bei gleicher Verunreinigungslast ähnliche Signalverläufe auf. Zwei VOC-Sensoren werden detailliert untersucht und zeigen einen plausiblen Signalverlauf bei Koch und Bratvorgängen, aber auch in einem Vorlesungssaal und in einem Büro. Comparative investigation of VOC sensors: In this article the use of VOC sensors for air quality-controlled volume flow control in extractor hoods will be examined. In cooking processes the VOC sensors have to detect high levels of contamination as well as rapid and sometimes sudden signal changes. Five different VOC sensors from four manufacturers are examined. The specific properties of the VOC sensors are analyzed and compared with each other by measurements. The measurements carry out that a comparison of the absolute sensor signals is not expedient. If the measurement signals of the individual VOC sensors are represented as percentages based on the difference between the maximum and minimum measurement values of a time series (standardized), four of the five sensors have similar signal curves with the same contamination load. Two VOC sensors are examined in detail and show a plausible signal course during the cooking processes, but also in a lecture hall and in an office.
Source:	Bauphysik 42 (2020), No. 4
Page/s:	196-202
Language of Publication:	German

I would like to buy the article

You can download this article for 25 € as a PDF file (0.28 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

Please enter your email address now to start the order process.
The link for the download will be sent to the email address stated after the
order process has been completed.

Your email address

I am an online subscriber

As an online subscriber of the journal "Bauphysik" you can access this article via Wiley Online Library.

I would like to order "Bauphysik"

This article has been published in the journal "Bauphysik". If you would like to learn more about the journal, you can order a free sample copy or find out more information on our website.

Prices include VAT and postage. Prices for 2017/2018.
€ Prices apply to Germany only. Subject to alterations, errors excepted.