Abstract
Finite element analysis (FEA) is employed to simulate the thermo-resistance of a marine fire-proof door in the fire-resistance test defined by the International Code for the Application of Fire Test Procedures (2010 FTP Code) and required by the International Maritime Organization (IMO) for marine applications. The appropriate type of simulation adopted (i.e., steady or unsteady) is discriminated on the basis of a comparison between the numerical results and the experimental data. This appropriate model is used to evaluate the critical parameters affecting fire-proof door performance. A remarkable role of the thermal bridge at the door edges in fire resistance is assessed, along with the parameters that allow its reduction. These findings provide insight into how to design a thinner and lighter fire door.
Highlights
IntroductionFire doors are used for slowing or stopping fire propagation and represent a key safety measure, which must be preventively tested and classified [1]
Fire safety is one of the most important issues when on board ships
The design of conventional fire doors is based on well-established methodologies, aimed at optimizing their thermal behavior in order to comply with the requirements of the fire-resistance test
Summary
Fire doors are used for slowing or stopping fire propagation and represent a key safety measure, which must be preventively tested and classified [1] For this purpose, International Convention for the Safety of Life at Sea (SOLAS) amendments, within the provisions on fire safety on board, made effective on 1 July 2012 the International Code for the Application of Fire Test Procedures (2010 FTP Code), a mandatory safety fire test [2]. International Convention for the Safety of Life at Sea (SOLAS) amendments, within the provisions on fire safety on board, made effective on 1 July 2012 the International Code for the Application of Fire Test Procedures (2010 FTP Code), a mandatory safety fire test [2] In this test, a door is exposed to a prescribed time-temperature heating schedule, depending on the fire-door class, and both mechanical and thermal limits are imposed to assess the door performance [1]. Only small gaps between the door and the frame are tolerated to ensure that no flame passes through the door (detailed experimental procedure and limit parameters are reported in the FTP Code [1])
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