Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Cheol-Hong Hwang"'
Publikováno v:
Applied Sciences, Vol 14, Iss 16, p 6890 (2024)
The majority of fatalities in building fires are attributed to asphyxiation caused by toxic gases. Hydrogen cyanide (HCN) is one of the toxic gases that can be released during a fire, posing a lethal risk to humans even at low concentrations. However
Externí odkaz:
https://doaj.org/article/de255a1135cc4173af21380173153e30
Autor:
Hyo-Yeon Jang, Cheol-Hong Hwang
Publikováno v:
Fire, Vol 7, Iss 4, p 108 (2024)
In South Korea, the need to link fire and evacuation simulations to compare the available safety egress time (ASET) and required safety egress time (RSET) in real time when implementing performance-based design in buildings is increasing. Accordingly
Externí odkaz:
https://doaj.org/article/6f7083bf555a4a9ab4e422f7bffdffa3
Autor:
Hong-Seok Yun, Cheol-Hong Hwang
Publikováno v:
Fire, Vol 7, Iss 2, p 56 (2024)
Consideration of appropriate fire scenarios in the simulations of the Fire Dynamics Simulator (FDS) for the fire-risk assessment of buildings is a critical factor in the development of prevention and response measures. The user dependence of the FDS
Externí odkaz:
https://doaj.org/article/e2e90eaff6ec42a39fbdc215928ad0a9
Autor:
Hyo-Yeon Jang, Cheol-Hong Hwang
Publikováno v:
Applied Sciences, Vol 13, Iss 24, p 13161 (2023)
In performance-based design for domestic buildings, there is a growing need for real-time comparison between the Available Safe Egress Time and Required Safe Egress Time through the integration of fire and evacuation simulations. Therefore, the utili
Externí odkaz:
https://doaj.org/article/0d74c109275f456d9550415d3b1fbf3c
Autor:
Hong-Seok Yun, Cheol-Hong Hwang
Publikováno v:
Energies, Vol 16, Iss 2, p 845 (2023)
The results of cable burning experiments conducted in a well-controlled or open environment may differ from fire phenomena in an actual installation environment of cables where the effects of ventilation conditions and thermal feedback exist. In orde
Externí odkaz:
https://doaj.org/article/21877f4d56324f81a6618f65a969f1a8
Autor:
Hyo-Yeon Jang, Cheol-Hong Hwang
Publikováno v:
Applied Sciences, Vol 13, Iss 1, p 669 (2023)
Photoelectric smoke detectors are used for early detection of building fires, and sensitivity adjustment is generally performed using white smoke generated by the burning of filter paper. Therefore, when black smoke of the same concentration is intro
Externí odkaz:
https://doaj.org/article/7fca6ed11c344bfc9b5dbc2b90ef4a23
Publikováno v:
Applied Sciences, Vol 12, Iss 23, p 12278 (2022)
In this study, experiments and numeric studies were conducted to analyze the causes of abnormal behavior in temperature, heat flux, and combustion efficiency that occurred before a compartment fire was converted to the under-ventilated condition. The
Externí odkaz:
https://doaj.org/article/6c6fe983543a4e1dbe6e33427b1b62fc
Publikováno v:
Applied Sciences, Vol 11, Iss 13, p 5942 (2021)
The effects of changes in irradiance level (external heat flux), exhaust flow rate, and hood height on CO and soot yield were examined using a cone calorimeter. Black acrylic, having similar constituents as polymethyl methacrylate, was used as a comb
Externí odkaz:
https://doaj.org/article/ccbeec73edf94bbcb5397ef60fa790e0
Autor:
Hyo-Yeon Jang, Cheol-Hong Hwang
Publikováno v:
Sensors, Vol 20, Iss 21, p 6272 (2020)
The obscuration thresholds for various smoke detectors and combustibles, required as an input parameter in fire simulation, were measured to predict the accurate activation time of detectors. One ionization detector and nine photoelectric detectors w
Externí odkaz:
https://doaj.org/article/892a5147a4b841028fe4f08cdda80cba
Publikováno v:
Energies, Vol 13, Iss 17, p 4458 (2020)
Real-scale fire experiments were conducted to understand the fire spread characteristics of the major combustibles handled in traditional markets, a space with high fire risk. The major combustibles were selected through field surveys administered at
Externí odkaz:
https://doaj.org/article/00ad24f9b8f0444a8a0d6c71109b5e0c