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Study of the smoke ...
Study of the smoke toxicity characteristics in an inclined tunnel
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- Tang, Fei (författare)
- University of Science and Technology of China
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- Mcnamee, Margaret (författare)
- Lund University,Lunds universitet,Avdelningen för Brandteknik,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Aerosoler,LTH profilområden,LTH profilområde: Cirkulär byggindustri,LTH profilområde: Energiomställningen,Division of Fire Safety Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Aerosols,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Circular Building Sector,Faculty of Engineering, LTH,LTH Profile Area: The Energy Transition,Faculty of Engineering, LTH
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- Xu, Tong (författare)
- Central South University, China
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- Zhang, Xiaolei (författare)
- University of Science and Technology of China
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- Deng, Lei (författare)
- China University of Mining and Technology-Beijing
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- Hu, Longhua (författare)
- University of Science and Technology of China
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(creator_code:org_t)
- 2024
- 2024
- Engelska.
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Ingår i: Fire Safety Journal. - 0379-7112. ; 142
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Fire smoke is one of the most important factors causing casualties, but also has the potential to bring some harm to the surrounding environment. In this work, the longitudinal temperature profile and the pollutant toxicity of a ceiling jet induced by a wall-attached fire with different tunnel slopes, were numerically and experimentally investigated by using a 1:8 reduced-scale inclined tunnel. The results show that for a given heat release rate (HRR), the flame extension is longer and the temperature decay is slower in ceiling jets induced by a wall-attached fire than for similar free-burning fires, because the air entrainment is restricted by the tunnel side walls. Further, the uphill pollutant toxicity was found to be higher with greater HRR and lower tunnel slope. Finally, a correlation between the non-dimensional longitudinal smoke temperature and CO concentration could be established for the inclined tunnel fire.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Annan samhällsbyggnadsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Other Civil Engineering (hsv//eng)
Nyckelord
- Burner aspect ratio
- CO concentration
- Inclined tunnel fire
- Smoke toxicity
- Temperature profile
- Wall-attached fire
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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