Utility of Computer Modelling in Determination of Safe Available Evacuation Time
The main aim of the paper is to evaluate the primary factors affecting the safe available evacuation time with the utility of computer modelling, namely Consolidated Model of Fire and Smoke Transport (CFAST) computer model by NIST. The traditionally accepted base value of 2.5 minutes, used in many d...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Žilina
2015-02-01
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| Series: | Communications |
| Subjects: | |
| Online Access: | https://komunikacie.uniza.sk/artkey/csl-201501-0011_utility-of-computer-modelling-in-determination-of-safe-available-evacuation-time.php |
| _version_ | 1797846867558531072 |
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| author | Vladimir Mozer Jiri Pokorny Petr Kucera Lubica Vrablova Peter Wilkinson |
| author_facet | Vladimir Mozer Jiri Pokorny Petr Kucera Lubica Vrablova Peter Wilkinson |
| author_sort | Vladimir Mozer |
| collection | DOAJ |
| description | The main aim of the paper is to evaluate the primary factors affecting the safe available evacuation time with the utility of computer modelling, namely Consolidated Model of Fire and Smoke Transport (CFAST) computer model by NIST. The traditionally accepted base value of 2.5 minutes, used in many design standards, may not be appropriate due to its very generalised nature. Hence, a multi-criteria analysis is carried out in which four standard fire scenarios (fire growth rates) are modelled in a set of compartments with varying geometry. The simulation results are assessed against a range of critical conditions, including visibility, toxicity and temperature. Obtained safe available evacuation times are then compared to the standardised values used in design. The results show that the standardised times derived from the 2.5-minutes base value are not as conservative as believed; both under- and overprediction have been identified. The outcomes indicate that a review of the standardised available safe evacuation times should be carried out. |
| first_indexed | 2024-04-09T18:03:00Z |
| format | Article |
| id | doaj.art-07b34ee60fd348a3a11488284f4f7ed7 |
| institution | Directory Open Access Journal |
| issn | 1335-4205 2585-7878 |
| language | English |
| last_indexed | 2024-04-09T18:03:00Z |
| publishDate | 2015-02-01 |
| publisher | University of Žilina |
| record_format | Article |
| series | Communications |
| spelling | doaj.art-07b34ee60fd348a3a11488284f4f7ed72023-04-14T06:31:00ZengUniversity of ŽilinaCommunications1335-42052585-78782015-02-01171677210.26552/com.C.2015.1.67-72csl-201501-0011Utility of Computer Modelling in Determination of Safe Available Evacuation TimeVladimir Mozer0Jiri Pokorny1Petr Kucera2Lubica Vrablova3Peter Wilkinson4Department of Fire Engineering, Faculty of Security Engineering, University of Zilina, SlovakiaFire & Rescue Service, Department of prevention and CNP, Ostrava, Czech RepublicDepartment of Fire Protection, Faculty of Safety Engineering, Technical University of Ostrava, Czech RepublicDepartment of Fire Engineering, Faculty of Security Engineering, University of Zilina, SlovakiaCivil Safety and Security Unit, University of Leicester, United KingdomThe main aim of the paper is to evaluate the primary factors affecting the safe available evacuation time with the utility of computer modelling, namely Consolidated Model of Fire and Smoke Transport (CFAST) computer model by NIST. The traditionally accepted base value of 2.5 minutes, used in many design standards, may not be appropriate due to its very generalised nature. Hence, a multi-criteria analysis is carried out in which four standard fire scenarios (fire growth rates) are modelled in a set of compartments with varying geometry. The simulation results are assessed against a range of critical conditions, including visibility, toxicity and temperature. Obtained safe available evacuation times are then compared to the standardised values used in design. The results show that the standardised times derived from the 2.5-minutes base value are not as conservative as believed; both under- and overprediction have been identified. The outcomes indicate that a review of the standardised available safe evacuation times should be carried out.https://komunikacie.uniza.sk/artkey/csl-201501-0011_utility-of-computer-modelling-in-determination-of-safe-available-evacuation-time.phpavailable safe evacuation time (asett2-firecfastlayer heighttoxicity |
| spellingShingle | Vladimir Mozer Jiri Pokorny Petr Kucera Lubica Vrablova Peter Wilkinson Utility of Computer Modelling in Determination of Safe Available Evacuation Time Communications available safe evacuation time (aset t2-fire cfast layer height toxicity |
| title | Utility of Computer Modelling in Determination of Safe Available Evacuation Time |
| title_full | Utility of Computer Modelling in Determination of Safe Available Evacuation Time |
| title_fullStr | Utility of Computer Modelling in Determination of Safe Available Evacuation Time |
| title_full_unstemmed | Utility of Computer Modelling in Determination of Safe Available Evacuation Time |
| title_short | Utility of Computer Modelling in Determination of Safe Available Evacuation Time |
| title_sort | utility of computer modelling in determination of safe available evacuation time |
| topic | available safe evacuation time (aset t2-fire cfast layer height toxicity |
| url | https://komunikacie.uniza.sk/artkey/csl-201501-0011_utility-of-computer-modelling-in-determination-of-safe-available-evacuation-time.php |
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