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Expanding catalytic sensor capabilities to combustible gas mixtures monitoring
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- Ivanov, I. I. (author)
- Moscow Inst Aviat Technol, Dept Radioelect Telecommun & Nanotechnol, Moscow, Russia.
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- Baranov, A. M. (author)
- Moscow Inst Aviat Technol, Dept Radioelect Telecommun & Nanotechnol, Moscow, Russia.
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- Spirjakin, D. N. (author)
- Moscow Inst Aviat Technol, Dept Radioelect Telecommun & Nanotechnol, Moscow, Russia.
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- Moscow Inst Aviat Technol, Dept Radioelect Telecommun & Nanotechnol, Moscow, Russia Datorarkitektur och datorkommunikation (creator_code:org_t)
- Elsevier, 2022
- 2022
- English.
- In: Measurement. - : Elsevier. - 0263-2241 .- 1873-412X. ; 194
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Preventing the explosion of mixtures of combustible gases and vapors is an important task in industry. This research presents an approach for rapid assessment of the explosiveness of combustible gas mixtures of unknown composition. The technique is based on registering the amount of heat released during the combustion of a portion of gases inside the catalytic sensor. The phenomenological theory of the approach for rapid assessment of the explosiveness was also presented. To carry out the measurements, a two-stage heating pulse and an approach to the calibration of the catalytic sensor were developed. The experiments were carried out for various mixtures of methane, propane, butane and hexane within the pre-explosive range (up to 50% Low Explosive Limit). In order to calculate the Lower Explosive Limit (LEL) of a mixture of flammable gases, Le Chatelier's rule was used. Industrial catalytic sensors with additional diaphragm that limits the gas leakage into the sensor were used for measurements. The advanced data processing which is based on integrating the area under the measured dependence of sensor response on time was used to calculate the heat released. The parameters affecting the measurement results were analyzed. The measurement values were in good agreement with the prescribed values. The measurement errors did not exceed 10%. Since in this approach there is no need to identify gases, or their quantity and concentration, it can be used in industry for quick determination of potentially explosive mixtures in the air.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Catalytic sensor
- Combustible gas mixtures
- Explosion hazard assessment
- Two-stage heating profile
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- ref (subject category)
- art (subject category)
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- By the author/editor
- Ivanov, I. I.
- Baranov, A. M.
- Spirjakin, D. N.
- Akbari, Saba
- Mironov, S. M.
- Karami, H.
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- Gharehpetian, G. ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Mechanical Engin ...
- and Energy Engineeri ...
- Articles in the publication
- Measurement
- By the university
- Uppsala University
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