Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
Heat Transfer Research
Impact-faktor: 0.404 5-jähriger Impact-Faktor: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Druckformat: 1064-2285
ISSN Online: 2162-6561

Volumes:
Volumen 50, 2019 Volumen 49, 2018 Volumen 48, 2017 Volumen 47, 2016 Volumen 46, 2015 Volumen 45, 2014 Volumen 44, 2013 Volumen 43, 2012 Volumen 42, 2011 Volumen 41, 2010 Volumen 40, 2009 Volumen 39, 2008 Volumen 38, 2007 Volumen 37, 2006 Volumen 36, 2005 Volumen 35, 2004 Volumen 34, 2003 Volumen 33, 2002 Volumen 32, 2001 Volumen 31, 2000 Volumen 30, 1999 Volumen 29, 1998 Volumen 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2016010488
pages 989-1011

A NEW SEMIEMPIRICAL MODEL FOR THE MAXIMUM TEMPERATURE UNDER THE CEILING IN URBAN TRAFFIC LINK TUNNEL FIRES

Sicheng Li
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China; Department of Fire Command, The Chinese People's Armed Police Force Academy, Lang fang, Hebei, 065000, China
W. Wang
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
Y. H. Zhao
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
X. G. Dong
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China

ABSTRAKT

The Urban Traffic Link Tunnel (UTLT) is an innovative underground transportation system for the modern metropolis, typically consisting of a main tunnel and several linked tunnels. To provide proper fire protection to the UTLT structure, the maximum temperature beneath the ceiling needs to be determined. However, as the effective height of the UTLT is lower than that of a normal tunnel, the maximum temperatures under the UTLT ceiling are different from those in normal tunnels. A theoretical analysis and CFD simulation were performed in this work to estimate the maximum temperature under the ceiling in UTLT. The smoke temperatures at 0.2 m under the ceiling of the UTLT were computed for different heat release rates, longitudinal ventilation velocities, and tunnel heights. Based on the simulation results, a new semiempirical model for the maximum temperature under the ceiling during UTLT fires has been developed. The comparison of the new model predictions with experimental data indicates that the model can predict experimental results fairly well and is suitable for the UTLT fire protection design.


Articles with similar content:

Experimental and numerical modelling of crib fires in a small-scale enclosure
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2009, issue
Tracie Barber, D. Mackay
SAFETY ASSESSMENT OF HYBRID HEAT PIPE-INTEGRATED SPENT FUEL DRY STORAGE CASK
International Heat Transfer Conference 16, Vol.6, 2018, issue
In Cheol Bang, Kyung Mo Kim, Yeong Shin Jeong
STUDIES ON SMOKE FILLING IN A VENTILATED ENCLOSURE
Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), Vol.0, 2017, issue
V. Balasubramaniyan, Seik Mansoor Ali, Tejaswi Abburi
Snow Days Determination, Using Passive Microwavesatellite Data
Telecommunications and Radio Engineering, Vol.67, 2008, issue 5
A. Matkan
3-D Modelisation of the interaction of discrete hole injections with a Compressible Transversal Flow
ICHMT DIGITAL LIBRARY ONLINE, Vol.2, 2004, issue
Djamel Cherrarred, Said Benmansour, Rabah Dizene