Exploring the thermal characteristics, ignitions and heat release of oils and solid items at electric cooktops

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHostikka, Simoen_US
dc.contributor.authorJhatial, Tariqueen_US
dc.contributor.authorAatamila, Marjaleenaen_US
dc.contributor.departmentDepartment of Civil Engineeringen
dc.contributor.groupauthorPerformance in Building Design and Constructionen
dc.contributor.groupauthorStructures – Structural Engineering, Mechanics and Computationen
dc.contributor.organizationDepartment of Civil Engineeringen_US
dc.contributor.organizationEmergency Services Academyen_US
dc.date.accessioned2023-08-23T06:08:52Z
dc.date.available2023-08-23T06:08:52Z
dc.date.issued2023-10en_US
dc.descriptionFunding Information: This research was funded by the Finnish Fire Protection Fund ( Palosuojelurahasto , grant number SM2024913 ). The following persons are acknowledged for helping in the test preparations: Dr. Rahul Kallada Janardhan, Mr. Otto Hedström, Mr. Kalle Kiviranta, Mr. Pekka Toivanen, Dr. Marko Hassinen, and Mr. Ari Haavisto. Safera Oy and Innohome Oy are acknowledged for providing the stove guards. Publisher Copyright: © 2023 The Authors
dc.description.abstractKitchen is the most common origin of residential fires, and usually the fire starts from a cooktop. To increase the understanding of such fires, we measured the electric power and surface temperatures of three different cooktops and four frying pans, and measured the ignition times and heat release rates (HRR) from cooking oils, butter and four different solid items (pizza box, pot holder, paper towel roll, LDPE bags). The estimated ignition probability of oils and butter was 0.44 ± 0.13, with an ignition time of 309 ± 81 s and peak HRR of 300–600 kW/m2. Solid items ignited with 0.80 ± 0.10 likelihood in 378 ± 228 s, reaching higher temperatures at ignition compared to oils. LDPE bags posed the highest risk due to their propensity to ignite, melt, and burn with peak HRR exceeding 2000 kW/m2. The ignition times were mainly controlled by the cooktop heating, while the material processes delayed the ignitions by 23%. Stove guards (EN 50615 cat. B) activated before ignition in all tests, except for the pizza box and pot holder. Ignition prevention was not tested, though. Further development of the stove guard standard is therefore necessary to effectively prevent fires originating from auxiliary materials.en
dc.description.versionPeer revieweden
dc.format.extent10
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationHostikka, S, Jhatial, T & Aatamila, M 2023, ' Exploring the thermal characteristics, ignitions and heat release of oils and solid items at electric cooktops ', Fire Safety Journal, vol. 140, 103889 . https://doi.org/10.1016/j.firesaf.2023.103889en
dc.identifier.doi10.1016/j.firesaf.2023.103889en_US
dc.identifier.issn0379-7112
dc.identifier.otherPURE UUID: b8569d8d-b7fa-4c6e-8ea7-517445aa9019en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b8569d8d-b7fa-4c6e-8ea7-517445aa9019en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85167428396&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/119043760/1_s2.0_S0379711223001571_main.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/122662
dc.identifier.urnURN:NBN:fi:aalto-202308235008
dc.language.isoenen
dc.publisherElsevier Science Ltd.
dc.relation.ispartofseriesFire Safety Journalen
dc.relation.ispartofseriesVolume 140en
dc.rightsopenAccessen
dc.subject.keywordCooking fireen_US
dc.subject.keywordCooktop fire safetyen_US
dc.subject.keywordHeat release rateen_US
dc.subject.keywordIgnitionen_US
dc.subject.keywordKitchen fireen_US
dc.titleExploring the thermal characteristics, ignitions and heat release of oils and solid items at electric cooktopsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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