Suctional Losses in a Two-Rotor Vacuum Pump with External Compression

The losses of productivity observed in gas suction within an oil-free two-rotor vacuum pump are considered. In CFD (computational fluid dynamics) modeling of pump operation, both with and without a pressure difference, the influence of heating and throttling of the gas is analyzed, as it passes thro...

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Bibliographic Details
Published in:Russian engineering research Vol. 44; no. 8; pp. 1117 - 1120
Main Authors: Raykov, A. A., Burmistrov, A. V., Salikeev, S. I.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01.08.2024
Subjects:
Engineering
Engineering Design
suction
two-rotor vacuum pump
CFD (computational fluid dynamics) modeling
performance
losses
ISSN:1068-798X, 1934-8088
Online Access:Get full text
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Summary:The losses of productivity observed in gas suction within an oil-free two-rotor vacuum pump are considered. In CFD (computational fluid dynamics) modeling of pump operation, both with and without a pressure difference, the influence of heating and throttling of the gas is analyzed, as it passes through the intake tube and as it fills an isolated chamber. Experimental data confirm the modeling results. Gas heating in suction has the greatest influence on pump performance. The proposed formula determines the losses with no more than 6% error.
ISSN:1068-798X
1934-8088
DOI:10.3103/S1068798X24701855