Contents
Fse-detector-activation-time-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 8 KB)
Summary
Heat transfer to a ceiling-mounted heat detector: early in a fire, convection from the ceiling jet dominates, while radiation and conduction to the detector body are small. Based on Schifiliti et al. (2002), pp. 4-5 to 4-6.
Original illustration for Detector activation time, level 4 Expert.
- Source basis: Schifiliti et al. (2002), p. 4-5 (heat transfer paths, radiation neglected in the initial stage, conduction negligible for isolated elements; Figure 4-1.4, redraw, do not copy) and p. 4-6 (plunge test, RTI)
- Alt text: Cross-section of a heat detector under a ceiling: hot gas flows past the element; thick arrow for convection, thin arrows for radiation and conduction.
Licensing
New drawing by Fire Safety Academy. © Fire Safety Academy.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:27, 2 November 2026 | | 900 × 600 (8 KB) | Jan (talk | contribs) | Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity |
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