Experimental and numerical studies on fire in tunnels

Download
index.pdf
2011
Çelik, Alper
Show full item record
132
views
111
downloads
Fire is a complex phenomenon including many parameters. The nature of fire makes it a very dangerous and hazardous. For many reasons the number of tunnels are increasing on earth and fire safety is one of the major problem related to tunnels. This makes important to predict and understand the behavior of fire, i.e., heat release rate, smoke movement, ventilation effect etc. The literature includes many experimental and numerical analyses for different conditions for tunnel fires. This study investigates pool fire of three different fuel sources: ethanol, gasoline and their mixture for different ventilation conditions, different geometries and different amounts. Combustion gases and the burning rates of the fuel sources are measured and analyzed. The numerical simulation of the cases is done with Fire Dynamics Simulator (FDS), a CFD code developed by NIST.
Fire prevention., Mechanical Engineering.
http://etd.lib.metu.edu.tr/upload/12613857/index.pdf
https://hdl.handle.net/11511/20833
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

LINEAR CONTACT ALGORITHM FOR RIGID-PLASTIC FINITE-ELEMENT SIMULATION
TEKKAYA, AE; SEN, A (1992-12-01)
The rigid-plastic finite element analysis of metal forming processes is known to be much more efficient and stable than the elastic-plastic one. This efficiency results from the absence of kinematical nonlinearities in the formulation. Contact algorithms used in rigid-plastic models must agree with this fact, otherwise the efficiency can be damaged seriously.
Experimental study of solid propellant combustion instability
Çekiç, Ayça; Ulaş, Abdullah; Department of Mechanical Engineering (2005)
In this study, experimental investigation of solid propellant combustion instability using an end burning T-Burner setup is performed. For this purpose, a T-Burner setup is designed, analyzed, constructed and tested with all its sub components. T-Burner setup constructed is mainly composed of a base part, a control panel and the T-Burner itself. Combustion chamber, pressure stabilization mechanism, pressurization system, measurement instruments and data acquisition systems form the T-Burner. Pressure stabil...
Determination of vibroacoustical behavior of plates by intensity methods
İnalpolat, Murat; Çalışkan, Mehmet; Department of Mechanical Engineering (2004)
In this study, sound radiation and power flow characteristics of plates which constitute the bodies of common engineering applications like cars and household appliances are investigated. Three different vibro-acoustical measurement techniques are used in an integrated manner and results obtained are compared with those obtained from analytical models developed. Two-microphone sound intensity measurement with a probe utilizing side-by-side configuration is used to analyze the near-field radiation characteri...
Development and analysis of grasshopper-like jumping mechanism in biomimetic approach
Konez Eroğlu, Aylin; Akkök, Metin; Department of Mechanical Engineering (2007)
Highly effective and power efficient biological mechanisms are common in nature. The use of biological design principles in engineering domain requires adequate training in both engineering and biological domains. This requires cooperation between biologists and engineers that leads to a new discipline of biomimetic science and engineering. Biomimetic is the abstraction of good design from nature. Because of the fact that biomimetic design has an important place in mechatronic applications, this study is di...
Experimental investigation and modeling of dropwise condensation on a horizontal gold coated tube /
Serdar, Orhan; Yamalı, Cemil; Department of Mechanical Engineering (2004)
The phenomenon dropwise condensation on a horizontal gold coated tube is investigated by both analytical and experimental methods in this study. A computer program is prepared to calculate the dropwise condensation heat transfer rate on the horizontal gold coated tube. An experimental setup was also manufactured to measure the dropwise condensation heat transfer rate. The effects of flow rate, temperature of cooling water and also steam to wall temperature difference have been analytically investigated by u...
Citation Formats
A. Çelik, “Experimental and numerical studies on fire in tunnels,” M.S. - Master of Science, Middle East Technical University, 2011.
METU IIS - Integrated Information Service open@metu.edu.tr