S. Zimin, K. Afanasenko, V. Lypovyi. The temperature regime of a closed-type flare system. P. 267-279.

 

The temperature regime of a closed-type flare system

 

Sergej Zimin

National University of Civil Defenсe of Ukraine

http://orcid.org/0000-0003-0514-2238

 

Kostiantyn Afanasenko

National University of Civil Defenсe of Ukraine

http://orcid.org/0000-0003-1877-1551

 

Volodymyr Lypovyi

National University of Civil Defenсe of Ukraine

http://orcid.org/0000-0002-1967-0720

 

DOI: https://doi.org/10.52363/2524-0226-2022-36-20

 

Keywords: flare systems, flare stacks, temperature, thermal radiation, steady operation mode

 

Аnnotation

An experimental stand simulating a closed-type flare installation was developed and manufactured in order to study the temperature regime when it enters a stable mode of operation. Data on the distribution of temperatures at the points of the casing of the experimental stand during its start-up and transition to a stable mode were obtained. The stand was developed on the basis of a statistical analysis of accidents at flare installations and an analysis of the fire hazard of flare installations and flare devices, as their parts, of industrial enterprises of chemical, petrochemical, energy complexes, which also include enterprises of the biogas complex, during which it was established that these devices may present a hazard during normal operation. Determination of temperatures at control points was carried out using a GM900 pyrometer and a WT3320 HQ thermal imager. Research was conducted for methane combustion without carbon dioxide admixtures. Temperature control was carried out at 12 points along the perimeter and the height of the casing of the installation at a gas consumption of 11 and 19 l/min. It was established that the installation enters a stable mode of operation in time intervals of 250–300 s from the start of operation. At the same time, there is an increase in the temperature of the casing in height. According to the results of the experiment, a comparison of the average temperature on the outer surface of the casing at points 1–12 at different costs was made. It was established that an increase in gas flow leads to an increase in temperatures in points 5–12 by up to 40 %, and in points 1–4 – to a decrease by 20 % in a steady state. The obtained experimental data can be used as a basis for the development of a mathematical model regarding temperature changes on the casing surface of closed flare systems over time.

 

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