RESEARCH OF PERSPECTIVE FOR NEON-HELIUM MIXTURE ENRICHMENT HEAT AND MASS NOZZLE COLUMNS SURFACE CHARACTERISTICS
DOI:
https://doi.org/10.15673/0453-8307.2/2015.37236Keywords:
Rectification – Neon-Helium Mixture – Nozzle Column – Heat and Mass-exchange Surface – Transfer Unit Height.Abstract
One of the main factors determining nozzle rectifying columns operation is the mass exchange surface. The presented researches focus on the choice of nozzle design unit for neon helium mixture primary enrichment. Created universal experimental setup for studying the processes of rectification allows obtaining the basic characteristics of four nozzles: spiral, spiral-prismatic and two types of mesh saddle (10´10´0,2 mm and 12´12´0,4 mm).
From the studied nozzles according to known requirements and taking into consideration a large-scale factor the best mesh saddle nozzle from a wire with a diameter 0,2 mm and the sizes 10×10 mm was chosen. This type of nozzle has low resistance of the irrigated nozzle (48 Pa) that is critical for the studied steam speeds (0,3 … 0,5 m/s).
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