Experimental assessment of bench-scale ignitability parameters
(2019) In Fire and Materials 43(2). p.123-130- Abstract
This work aims to explore possible ways of improving the precision of ignition measurements in the cone calorimeter. Both inherent repeatability of parts of the testing equipment and operator-dependent variations are considered. Inherent repeatability is indicated to be slightly improved if the test samples used are circular rather than square. Operator-dependent variation is discussed in terms of the method used for determining ignition. Four procedures are compared, namely, visual observation, usage of a light sensor, and looking at the peak of the second and first derivatives of the mass loss and heat release curves, respectively. Results indicate that the preferable operator-independent method depends on the test conditions; the... (More)
This work aims to explore possible ways of improving the precision of ignition measurements in the cone calorimeter. Both inherent repeatability of parts of the testing equipment and operator-dependent variations are considered. Inherent repeatability is indicated to be slightly improved if the test samples used are circular rather than square. Operator-dependent variation is discussed in terms of the method used for determining ignition. Four procedures are compared, namely, visual observation, usage of a light sensor, and looking at the peak of the second and first derivatives of the mass loss and heat release curves, respectively. Results indicate that the preferable operator-independent method depends on the test conditions; the derivative of the heat release rate is an alternative to the mass loss rate derivative when the scale is of standardised quality. A light sensor for ignition time observation is a good option when the surrounding light is not changed during the test.
(Less)
- author
- Vermina Plathner, Frida LU and van Hees, Patrick LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- critical energy flux, critical mass flux, plastics, sustained ignition
- in
- Fire and Materials
- volume
- 43
- issue
- 2
- pages
- 123 - 130
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85053479764
- ISSN
- 0308-0501
- DOI
- 10.1002/fam.2675
- language
- English
- LU publication?
- yes
- id
- 845eadb5-ac16-48ac-a3bf-b814e990d0dc
- date added to LUP
- 2018-10-22 14:58:25
- date last changed
- 2022-04-17 23:39:06
@article{845eadb5-ac16-48ac-a3bf-b814e990d0dc,
abstract = {{<p>This work aims to explore possible ways of improving the precision of ignition measurements in the cone calorimeter. Both inherent repeatability of parts of the testing equipment and operator-dependent variations are considered. Inherent repeatability is indicated to be slightly improved if the test samples used are circular rather than square. Operator-dependent variation is discussed in terms of the method used for determining ignition. Four procedures are compared, namely, visual observation, usage of a light sensor, and looking at the peak of the second and first derivatives of the mass loss and heat release curves, respectively. Results indicate that the preferable operator-independent method depends on the test conditions; the derivative of the heat release rate is an alternative to the mass loss rate derivative when the scale is of standardised quality. A light sensor for ignition time observation is a good option when the surrounding light is not changed during the test.</p>}},
author = {{Vermina Plathner, Frida and van Hees, Patrick}},
issn = {{0308-0501}},
keywords = {{critical energy flux; critical mass flux; plastics; sustained ignition}},
language = {{eng}},
number = {{2}},
pages = {{123--130}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Fire and Materials}},
title = {{Experimental assessment of bench-scale ignitability parameters}},
url = {{http://dx.doi.org/10.1002/fam.2675}},
doi = {{10.1002/fam.2675}},
volume = {{43}},
year = {{2019}},
}