An experimental study on combustion instabilities

Serin, Nadir


An experimental study on the motion of solid spheres under solitary wave attack
Goral, Koray Deniz; GÜLER, HASAN GÖKHAN; Baykal, Cüneyt; Yalçıner, Ahmet Cevdet (2021-11-01)
In the present study, the motion of a single and the motion and collision of two spheres on a horizontal area under solitary wave attack are investigated, constituting a unique and integrated dataset. Sixteen experimental cases are considered on four experimental configurations changing the number of spheres, the porosity of the bottom, water levels, and the breaking condition of the solitary waves (non-breaking or breaking). The motion of the spheres is tracked using a color-detection-based image-processin...
An Experimental and numerical study on the combustion characteristics of pool fires in tunnels
Shafee, Sina; Yozgatlıgil, Ahmet; Department of Mechanical Engineering (2017)
This work presents the results of experimental and numerical analysis on tunnel fires in an attempt to improve existing knowledge on the fire dynamics and related safety measures in various tunnel fire scenarios. Results are grouped into four parts in which the effects of tunnel wall coating, inclination, tunnel obstruction and existence of secondary fire source in close vicinity were investigated on tunnel fire characteristics. A 1/13 longitudinally ventilated scaled tunnel model constructed based on Froud...
An experimental study on the hypergolic ignition of hydrogen peroxide and ethanolamine
Ak, M. A.; Ulaş, Abdullah; Sumer, B.; Yazici, B.; Yildirim, C.; Gonc, L. O.; Orhan, F. E. (Elsevier BV, 2011-01-01)
This paper presents the hypergolic ignition test results of a potential environmentally friendly liquid propellant consisting of hydrogen peroxide oxidizer (with a concentration of 85%) and ethanolamine fuel for use in rocket engines. Open cup drop tests were conducted to study the effect of amount of metal salt catalyst in fuel and the initial temperatures of fuel and oxidizer on the ignition delay time. To test the hypergolic ignition of bipropellant formulation in a real rocket engine environment, a pres...
An Experimental study on steam distillation of heavy oils during thermal recovery
Tavakkoli Osgouel, Yashar; Parlaktuna, Mahmut; Department of Petroleum and Natural Gas Engineering (2013)
Thermal recovery methods are frequently used to enhance the production of heavy crude oils. Steam-based processes are the most economically popular and effective methods for heavy oil recovery for several decades. In general, there are various mechanisms over steam injection to enhance and have additional oil recovery. However, among these mechanisms, steam distillation plays pivotal role in the recovery of crude oil during thermal recovery process. In this study, an experimental investigation was carried o...
An investigation into the thermal behavior of coals
Kök, Mustafa Verşan (2002-10-01)
The thermal behavior of 4 coal samples was investigated using simultaneous thermogravimetry (TG/DTG) and differential thermal analysis (DTA) methods. Upon heating the coals in an inert atmosphere up to 800degreesC, 31.44-43.82% weight loss occurs. The 2 temperature regions of increased chemical reactivity are evident in the coal samples studied Two different models determined kinetic analysis of the samples, and the results are discussed.
Citation Formats
N. Serin, “An experimental study on combustion instabilities,” Middle East Technical University, 1993.