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VARIATION OF AIR STATUS PARAMETERS IN PRESENCE OF METHANE, IN THE VENTILATION DUCTS INSTALLATIONS

Ion Gherghe, Doru Cioclea, Adrian Matei, Răzvan Drăgoescu, Alexandru Camara escu

First published: 2022-11-15https://doi.org/10.5593/sgem2022/1.1/s03.052View metrics

Abstract

The main role of ventilation systems and especially air conditioning systems is to create indoor conditions and air quality inside the rooms that are independent of external atmospheric influences. The sizing of ventilation systems and especially of air conditioning systems is done, in most cases, by considering the climatic elements as a basis for calculation. The real limit to air quality insurance it consists in maintaining in the air certain concentrations of harmful substances which do not endanger human health and do not create discomfort. The air condition parameters of interest for the ventilation and air conditioning technique are air temperature and humidity, atmospheric pressure and air velocity. For this study, in the experimental laboratory, the test was performed on the variation of the air condition parameters in the conditions of conveying a quantity of methane gas through the ventilation duct. During the experiment, the operating parameters of the drive motor were changed using a frequency converter on levels 50; 40; 30; 20; 10 and 5 Hz. The ventilation system used was structured by means of flow converters which were fixed in the open position. The ventilation system as well as the flow variators were operated by the SCADA type command and control system. The paper will present the analysis of the variation of the state parameters (temperature, humidity, absolute pressure and air velocity) by introducing a constant amount of methane gas in the ventilation duct.

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Publication details

Title
VARIATION OF AIR STATUS PARAMETERS IN PRESENCE OF METHANE, IN THE VENTILATION DUCTS INSTALLATIONS
Authors
Ion Gherghe, Doru Cioclea, Adrian Matei, Răzvan Drăgoescu, Alexandru Camara escu
Proceedings
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Science and Technologies in Geology, Exploration And Mining
Publisher
STEF92 Technology
Year
2022
Pages
445-454
SWS Citekey
Gherghe20223445454
ISSN
1314-2704
ISBN
978-619-7603-38-5
Language
en
Publication type
Conference Paper
Proceedings contents
Open official contents
Keywords
ventilationair condition parametersmethanesafety
References5

  1. Al. Cristea, Ventilation and air conditioning, I, Technical Publishing House, Bucharest, 1968 pp 263-304;

  2. Alexandru Cristea, et al., Ventilation and air conditioning, II, Technical Publishing House, Bucharest, 1971 pp 16-24;

  3. Bancea O., Industrial ventilation systems, Editura Politehnica, Timi?oara, 2009; pp14-19, pp 122-137;

  4. Baltare?u R., Teodorescu C., Ventilation and Occupational Safety in Mines, Didactic and Pedagogical Publishing House, Bucharest, 1970; pp 50-95; pp 87-143;

  5. D. Cioclea, C. Lupu, I. Gherghe, Guid for sizing industrial ventilation installations, ISBN: 978-973-88753-4-0, INSEMEX Research Study Petrosani, 2013, pp 25-32, pp 93-179

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