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swirl-generators
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Effect of the geometry of a swirl generator on energy loss and shockwave position in arina nozzle
, Article Chemical Engineering and Technology ; Volume 43, Issue 8 , August , 2020 , Pages 1596-1607 ; Farhadi, F ; Sharif University of Technology
Wiley-VCH Verlag
2020
Abstract
To investigate the effect of the swirl generator (SG) on shockwave position and pressure drop, 3D simulation is conducted and validated by Arina's study. An increase of the blade number, height, and end angle leads to shockwave displacement toward the nozzle outlet. The maximum increment of the shockwave displacement, which is due to enlarging the angle of the blade end, is about 47 %. For this case, the pressure drop share of the SG is nearly half of the total pressure drop, while the residence time of particles is prolonged by about 51 %. As a general finding, increasing the swirl intensity provides a longer residence time to separate adequately the liquid from the gas. However, a higher...
Theoretical and Experimental Investigation of the Wetted Air Dehumidification by Supersonic Separator
, Ph.D. Dissertation Sharif University of Technology ; Farhadi, Fathollah (Supervisor)
Abstract
Supersonic separators (3Ss) are used in gas separation processes such as dehumidification of humid air thanks to their high performance and good pressure recovery. Moreover, 3Ss because of their simple mechanical construction and absence of any environmental impact are preferred to other dehydration methods of natural gas, such as adsorption, cooling, and membrane. Also using the 3Ss for relatively large facilities with considerable investment is more than evident. In the first phase of present study, 2-D simulation is performed to investigate the effect of operational and thermo-physical parameters on shockwave position in a specially conceived wet air 3S. Moreover, the effect of cyclonic...