Approach for modelling thermal properties of intumescent coating applied on steel members

Silva, Donatella de; Bilotta, Antonio; Nigro, Emidio

doi:10.1016/j.firesaf.2020.103200

Cited by 20 publications

(9 citation statements)

References 14 publications

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“…Therefore, the effective thermal conductivity of the intumescent char might be a more useful measure. Some excellent work was done in this area in the last decade or so [33,55,67,87,112,129,130] and a more widespread use of similar approaches would be extremely helpful.…”

Section: Discussionmentioning

confidence: 99%

Review of heat exposure equipment and in-situ characterisation techniques for intumescent coatings

Dreyer

Weinell

Dam‐Johansen

et al. 2021

Fire Safety Journal

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Section: Discussionmentioning

confidence: 99%

Review of heat exposure equipment and in-situ characterisation techniques for intumescent coatings

Dreyer

Weinell

Dam‐Johansen

et al. 2021

Fire Safety Journal

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“…The remaining surfaces of the steel member were made adiabatic using mineral wool and plasterboard as shown in Figure 3. The behaviour of intumescent coating in fire depends on different variables, including the section factor [18,19]. The steel member used during the above test has a section factor of 53 m −1 .…”

Section: Test On Steel Members Protected By Intumescent Coatingmentioning

confidence: 99%

“…Non-linear temperature thermal related material properties of steel and concrete, the specific heat, density and thermal conductivity, were taken from the Eurocodes [21] (Figure 4). Mechanical properties for steel and concrete were also The behaviour of intumescent coating in fire depends on different variables, including the section factor [18,19]. The steel member used during the above test has a section factor of 53 m −1 .…”

Section: The Slim Floorsmentioning

confidence: 99%

“…During the 2D modelling, 43-node linear quadrilateral heat transfer elements are employed, while for 3D modelling, 8 node hexahedral solid linear heat transfer elements, DC3D8 are used to perform the thermal analysis. Following the recommendations of the Eurocodes [18], convection coefficients for unexposed and exposed edges/surfaces are taken as 9 W/m 2 K and 25 W/m 2 K, respectively. Radiation emissivity for the exposed steel and concrete edges/surfaces is taken 0.5 and 0.25, respectively, as reported previously [24].…”

Section: The Slim Floorsmentioning

confidence: 99%

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Finite Element Modelling for Structural Performance of Slim Floors in Fire and Influence of Protection Materials

et al. 2021

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Slim floor systems are very common nowadays and various types are currently being used for the construction of high-rise buildings and car parks. Concrete in slim floor beams encases the steel beam section which helps to improve their fire resistance. Despite their higher fire resistance, several fire protection materials like intumescent coatings are often used to achieve a higher fire resistance where desired. The thermal properties and behaviour of various intumescent coating materials were previously studied through experimental investigations. This paper presents finite element analyses to simulate the response of unprotected and protected slim floor beams in fire using different simulation tools. For this purpose, fire tests conducted on unprotected slim floor beams and intumescent coating materials are modelled using research and commercial software. Results from the analyses are compared and verified with the available test data. These validated models are later combined to study the behaviour of protected slim floor beams in fire. Results from the study show that the research and the commercial software replicate the behaviour of slim floor beams and protection materials with good accuracy. Due to the presence of the intumescent coating, the protected slim floor beams displayed a better fire resistance as the temperature of the steel part remained below 400 °C even after 60-min of standard heating. The protected slim floor beams continued to support the external loads even after 120 min of heating.

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“…Previously, it was a common practice to pass internationally accepted test standards to verify fire resistance performance. Recently, scientific techniques have been studied beyond the conventional test standards of fire resistance performance, with the development of fire safety engineering for verifying fire resistance performance like the study of physical properties of intumescent coatings in the laboratory scale [2]. However, no matter what engineering technique is applied to passive fire protection, what must proceed is determination of the extent of a pool fire that requires fire resistance.…”

Section: Introductionmentioning

confidence: 99%

Overview of the Legal Design Basis for Passive Fire Protection in Korea and the Direction of Further Development

Byeon

2021

Sustainability

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The design of passive fire protection is applied to minimize the domino effect when a liquid pool fire occurs due to the facilities inside a process plant. In general, the design of passive fire protection has been applied using the API RP 2218 guideline as the basis regardless of the country or owner of the process plant. However, in Korea, legal regulations dictate that explosive areas should be regarded as fireproofing zones rather than following the API RP 2218 guideline. Because liquid pool fires and explosive gas atmospheres are different concepts, it is wrong from an engineering perspective to regard them as the same. Therefore, when a liquid pool fire occurs in a process plant in Korea, it may be more dangerous than in any other countries. In this study, we investigated three categories of fire risk. Korean safety regulations for the design of passive fire protection and others that are not reasonable from an engineering perspective need to be studied and revised. Specifically, Korea needs to revise the design basis of passive fire protection based on the API RP 2218 guideline as a legal standard in accordance with global trends.

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Approach for modelling thermal properties of intumescent coating applied on steel members

Cited by 20 publications

References 14 publications

Review of heat exposure equipment and in-situ characterisation techniques for intumescent coatings

Review of heat exposure equipment and in-situ characterisation techniques for intumescent coatings

Finite Element Modelling for Structural Performance of Slim Floors in Fire and Influence of Protection Materials

Overview of the Legal Design Basis for Passive Fire Protection in Korea and the Direction of Further Development

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