Experimental and Numerical Approaches to Optimize Heat Blocking Efficiency in Intumescent Coatings

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Published: Sep 12, 2024
DOI: https://doi.org/10.59972/xny38fpw
Keywords:
Intumescent Coating, Protective Layer, Heat Blocking Efficiency, Heat transfer

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Taher Hafiz
Case Western Reserve University
Edrissa Gassama
James Covello
Gary Wnek
Ya-Ting Liao
Abdul Kareem Melaiye

Abstract

Intumescent coatings, which swell and form a protective char when exposed to flame, are key for fire protection. This study evaluates the Heat Blocking Efficiency (HBE) of epoxy resin coatings, incorporating eco-friendly tannic acid (TA) and ammonium polyphosphate (APP), on hot-rolled carbon steel (HRCS). Using a methane torch, a 127mm HRCS plate was subjected to 130 kW/m2 heat flux. To predict heat transfer and estimate HBE, we combined experimental methods and numerical simulations involving a two-dimensional heat conduction model via finite element analysis (FEA), considering thermal insulation, heat flux boundary conditions, convection, and radiation. The results aligned closely with experimental data, confirming the coatings' efficacy in keeping steel temperature below the critical range of 550-600°C for up to 20 minutes, with the minimum temperature observed under 250°C. The coatings' HBE successfully reduced the substrate temperature by 90%, demonstrating their potential for advancing fire safety in coatings technology.

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Experimental and Numerical Approaches to Optimize Heat Blocking Efficiency in Intumescent Coatings. (2024). Engineering Modelling, Analysis and Simulation, 2(1). https://doi.org/10.59972/xny38fpw
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Vol. 2 No. 1 (2025): Articles in Press
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Articles
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

Experimental and Numerical Approaches to Optimize Heat Blocking Efficiency in Intumescent Coatings. (2024). Engineering Modelling, Analysis and Simulation, 2(1). https://doi.org/10.59972/xny38fpw

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