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Article

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Title

Fire exposure measurements using plate thermometers

Authors

[ 1 ] Instytut Analizy Konstrukcji, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ P ] employee | [ D ] phd student

Scientific discipline (Law 2.0)

[2.7] Civil engineering, geodesy and transport

Year of publication

2023

Published in

ce/papers

Journal year: 2023 | Journal volume: vol. 6 | Journal number: no. 3-4

Article type

scientific article / paper

Publication language

english

Keywords
EN
  • plate thermometer
  • heat transfer
  • fire engineering
  • heat flux
  • adiabatic surface temperature
Abstract

EN Plate thermometers (PT) are known and utilized in fire testing for more than 30 years. They are simple devices that measure the temperature of the thin plate, made of a thermal conductor, that is exposed to fire from one side and insulated from the opposite side. The main advantage of measuring thermal exposure using a plate thermometer is its ability to capture both the convective and radiative parts of the heat flux. However, thermal exposure is not directly the value the plate thermometer outputs. For this reason, an adiabatic surface temperature (AST), which could be considered as an objective measure of thermal exposure, can be calculated on the basis of the plate thermometer output. In this work, the abilities for fire-exposure measurements using plate thermometers are discussed. This work introduces the closed-form analytical solution of the plate thermometer heat balance equation for an adiabatic surface temperature. The authors consider the introduced solution as the best method, at this moment, for the evaluation of AST based on the PT output. This allows several findings to be presented that are not affected by the shortcomings of previously used methods for the AST evaluation.

Date of online publication

12.09.2023

Pages (from - to)

2156 - 2160

DOI

10.1002/cepa.2690

URL

https://onlinelibrary.wiley.com/doi/10.1002/cepa.2690

Presented on

EUROSTEEL 2023 : 10th Eurosteel Conference, 12-14.09.2023, Amsterdam, Netherlands

Ministry points / journal

5

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