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

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Ion Gherghe; Doru Cioclea; Adrian Matei; Razvan Dragoescu; Alexandru Camara?escu
10.5593/sgem2022/1.1/s03.052
10.5593/sgem2022/1.1
1314-2704
978-619-7603-38-5
English
22
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Exploration and Mining
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.
[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
[6] Cioclea D Development of techniques and methods to prevent the formation of explosive and / or toxic atmospheres specific to industrial area, INSEMEX Research Study Petrosani, 2020
This paper was developed within the Nucleu-Programme, carried out with the support of MCID, project no.PN 19-21-02-04
conference
https://doi.org/10.5593/sgem2022/1.1/s03.052
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
445-454
04 - 10 July, 2022
website
8439
ventilation, air condition parameters, methane, safety