Improvement of Methodology for Assessing Fire-Protective Efficiency of Intumescent Coatings Applied on Metal Constructions

Ustinov, Andrey; Babikova, Anastasiia; Zybina, Olga; Lobov, Denis; Printseva, Marya; Klaptyuk, I. V.; Shkitronov, Mikhail

doi:10.1051/e3sconf/202132002009

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…The calculation and modeling of wet protection is divided into two stages: before water evaporation and after. The use of intumescent coatings makes the mechanism of reaction in the heating process very complex [25,26], because the process is often divided into three stages: growth of the foam-coke, its stabilization, and then burnout [27,28]. However, when it comes to the coatings used on O&GC, the foam-coke is extremely rigid and remains fixed throughout almost the entire testing process [29][30][31].…”

Section: The Nominal Temperature-time Curves and Fire Protectionmentioning

confidence: 99%

Oil and Gas Structures: Forecasting the Fire Resistance of Steel Structures with Fire Protection under Hydrocarbon Fire Conditions

Gravit,

Dmitriev,

Shcheglov

et al. 2024

Fire

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The hydrocarbon temperature–time curve is widely used instead of the standard curve to describe the temperature in the environment of structural surfaces exposed to fire in oil and gas chemical facilities and tunnels. This paper presents calculations of the ratio of time to reach critical temperatures at different nominal fire curves for steel structures such as bulkheads and columns with different types of fireproofing. The thermophysical properties of the fireproofing materials were obtained by solving the inverse heat conduction problem using computer simulation. It was found that the time interval for reaching critical temperatures in structures with different types of fireproofing in a hydrocarbon fire decreased, on average, by a factor of 1.2–1.7 compared to the results of standard fire tests. For example, for decks and bulkheads with mineral wool fireproofing, the K-factor of the ratio of the time for reaching the critical temperature of steel under the standard curve to the hydrocarbon curve was 1.30–1.62; for plaster, it was 1.56; for cement boards, it was 1.34; for non-combustible coatings, it was 1.38–2.0; and, for epoxy paints, it was 1.71. The recommended values of the K-factor for fire resistance up to 180 min (incl.) were 1.7 and, after 180 min, 1.2. The obtained dependencies would allow fireproofing manufacturers to predict the insulation thickness for expensive hydrocarbon fire experiments if the results of fire tests under standard (cellulosic) conditions are known.

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Section: The Nominal Temperature-time Curves and Fire Protectionmentioning

confidence: 99%

Oil and Gas Structures: Forecasting the Fire Resistance of Steel Structures with Fire Protection under Hydrocarbon Fire Conditions

Gravit,

Dmitriev,

Shcheglov

et al. 2024

Fire

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Using synchronous thermal analysis to study characteristic features of a developing fire

Bezzaponnaya

2022

Požarovzryvobezopasnostʹ

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Introduction. The purpose of the work is to estimate the temperature of impact on the material under study using the results of synchronous thermal analysis. This task is solved to achieve the pre-set purposes: studying the process of the thermal-oxidative destruction of the material under study, developing thermal impact assessment criteria, and deriving equations to determine the temperature of impact.Materials and methods. Specimens of ROTBAND gypsum finishing putty, frequently used for the interior decoration of walls of buildings and premises, have been studied. Before testing, putty samples were subjected to the preliminary thermal impact of 200, 300, 400, 500, 600, 700, and 800 °С for 30 min. The tests were carried out using the method of synchronous thermal analysis (Netzsch STА 449 F5 Jupiter) in corundum crucibles at a heating rate of 20 °С/min and with an air flow rate of 75 ml/min.Research results and discussion. Mass loss at a temperature of 200 °C and ash residue at a temperature of 900 °C can be expediently used as the criteria for assessing the temperature of impact on the gypsum putty using thermal analysis methods. Equations are obtained to calculate the temperature of impact on the gypsum putty composition according to the thermos-analytical characteristics of putty specimens. Conclusions. The study demonstrates that synchronous thermal analysis can be applied to determine the temperature of impact on the material under study, which is vital for the analysis of a developing indoor fire.

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Determination of the Degree of Thermal Damage to Paint Coatings by Synchronous Thermal Analysis

Printseva¹,

Lobatova²

2022

XCROTPACOTPP

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Improvement of Methodology for Assessing Fire-Protective Efficiency of Intumescent Coatings Applied on Metal Constructions

Cited by 4 publications

References 14 publications

Oil and Gas Structures: Forecasting the Fire Resistance of Steel Structures with Fire Protection under Hydrocarbon Fire Conditions

Oil and Gas Structures: Forecasting the Fire Resistance of Steel Structures with Fire Protection under Hydrocarbon Fire Conditions

Using synchronous thermal analysis to study characteristic features of a developing fire

Determination of the Degree of Thermal Damage to Paint Coatings by Synchronous Thermal Analysis

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