USAGE OF LAVAL NOZZLE FOR SEPARATION OF NANO PARTICLES IN SUPERSONIC IMPACTORS
Publish place: 15th Annual Conference of Mechanical Engineering
Publish Year: 1386
Type: Conference paper
Language: English
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Document National Code:
ISME15_363
Index date: 28 March 2007
USAGE OF LAVAL NOZZLE FOR SEPARATION OF NANO PARTICLES IN SUPERSONIC IMPACTORS abstract
In this study the collection efficiency of supersonic impactors with different nozzle shapes has been studied for capturing the nano-particles. With accurate evaluation of all relevant forces on the particle motion collection efficiency and cut of size (50 % collection efficiency) of these impactors are evaluated numerically. It was found that for small L/D (distance of nozzle exit to impactor plate/nozzle diameter) cut of size of the impactor with a laval nozzle is decreased and smaller nano-particles can be separated.
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