Anti-interference smoke fire detection technology in typical sacrificial places

Zhong, Chen; Liu, Xiaopeng; Tian, Zhijia; Li, Haitao

doi:10.1109/icmsp53480.2021.9513401

Cited by 1 publication

(4 citation statements)

References 5 publications

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“…According to the experimental results, smoke detector #5, which was installed on the ceiling of the distribution panel, exhibited the lowest performance in terms of smoke and CO concentration detection. However, smoke detector #1, which was located immediately next to the exhaust fan, detected smoke most rapidly in 9 experiments out of 12 for all ignition source heights for û(15, 55, 0), û (15,55,30), and û (15,55,60). It also exhibited the highest CO concentration for all ignition source heights.…”

Section: Discussionmentioning

confidence: 97%

“…Zhong et al [15] placed ten fire sensors in the center of a 3 m-high ceiling in a 10 m (W) × 8 m (L) × 4 m (H) chamber to test their fire detection performance. Smoke combustion data were extracted for firewood, raw cotton, polyurethane, and flame liquid (n-heptane) as ignition sources and butter oil and incense as interfering ignition sources.…”

Section: Literature Reviewmentioning

confidence: 99%

“…An ionization smoke detector detects changes in the ion current from the smoke concentration Fire 2023, 6,49 of combustion products generated from fire, such as heat, smoke, and flame [9][10][11][12]. A photoelectric smoke detector detects changes due to smoke in the amount of light that contacts its photovoltaic device when a certain concentration of smoke is contained in the chamber [13] and includes a transmitter and a receiver [14,15]. For type-1 photoelectric smoke detectors (light sensitivity of 7.5%) [16] and type-2 photoelectric smoke detectors (light sensitivity of 15%) [15], the attachment height is determined according to the detector type and light sensitivity, as stipulated in Article 7 of the "fire safety standards for automatic fire detection equipment and visual information devices (NFSC 203)"; Article 7(3) No.…”

Section: Introductionmentioning

confidence: 99%

“…A photoelectric smoke detector detects changes due to smoke in the amount of light that contacts its photovoltaic device when a certain concentration of smoke is contained in the chamber [13] and includes a transmitter and a receiver [14,15]. For type-1 photoelectric smoke detectors (light sensitivity of 7.5%) [16] and type-2 photoelectric smoke detectors (light sensitivity of 15%) [15], the attachment height is determined according to the detector type and light sensitivity, as stipulated in Article 7 of the "fire safety standards for automatic fire detection equipment and visual information devices (NFSC 203)"; Article 7(3) No. 2 stipulates that smoke detectors must be attached to the ceiling or a concealed space inside the ceiling for installation [11,17,18].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimization of Smoke-Detector Installation Location Based on Effect of Fan Equipment inside Distribution Panel on Fire Detection Performance

Gu¹,

Yeon²,

Ryu³

et al. 2023

Fire

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Inhalation and exhaust fans are installed inside a distribution panel for cooling. However, in the event of fire inside the panel, these fans change the flow of smoke, which interferes with quick detection by fire sensors installed on the panel ceiling, thereby increasing fire damage. The purpose of this study is to develop a smoke detector that can be installed inside distribution panels and to propose an optimal smoke detector position based on the influence of the position on detection performance. To this end, an experimental distribution panel was fabricated and four smoke detector samples were installed near the fans. The smoke detection performance experiment was repeated on ignition source positions corresponding to widths of 15, 30, 45, and 50 cm, a depth of 55 cm, and heights of 0, 30, and 60 cm. The results indicated that the smoke detection performance and CO absorption concentration were higher when the smoke detector was positioned closer to the left or right side of the exhaust fan. In particular, compared with current designs in which smoke detectors are installed on distribution panel ceilings, the elapsed time until smoke detection decreased by 75%, whereas the CO absorption concentration increased by more than 100%. This study presents a theoretical ground for the installation of built-in smoke detectors near exhaust fans for closed power industry equipment that includes airflow-changing devices. Additionally, this study raises awareness on the importance of fire sensors and the need to improve policies and standards for fire prevention.

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Section: Discussionmentioning

confidence: 97%

Section: Literature Reviewmentioning

confidence: 99%