الفهرس 
INTRODUCTION AND LITERATURE REVIEWOnly 14 pages are availabe for public view
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Abstract
After a thorough review of the research studied on the two-region porous inert medium (PIM) burners, to my knowledge, it was noticed that they were restricted to investigate the effect of the downstream supercritical combustion region on their performance. In fact, the intuitive logic sense suggests that both regions should associate together to perform the behavior and performance of such burners. Therefore, the main objective of this work is to comprehensively investigate the effect of the other upstream subcritical (quenching) region of the PIM burners.This was made through carrying out an experimental and a parametric study to investigate the effect of some parameters of this region including the quenching material type and thickness. In addition, three different layers of three slot hole lengths are experimented beside comparing between two slot and hole geometries. The combustion stabilization within the PIM burner was systematically determined through measuring the real time longitudinal temperature distribution profiles along the burner for all the prementioned parameters.The effect of the quenching region on the pressure DROP and the emissions performance were also measured.The results showed that as the thickness increases, the stabilization performance is improved while the pressure drop, and the emissions are unimportantly affected. On the other hand, the material type had a great effect on the stability performance.High combustion levels and new wide range of the combustion stability limits were observed corresponding to the slot geometry. Generally, the slot geometry produced lower CO levels comparing with the hole geometry. The NOx emissions of the slot geometry were observed to be relatively higher than the other geometry and about ≤ 15 ppm but still acceptable far away the global environmental limit.