[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5757/ASCT.2016.25.4.67

Calculation of Pressure Profiles in a Molecular Flow Regime using LTSpice IV

Choi, Won-Shik (Graduate School of Wind Energy, POSTECH)
Kang, Kun-Uk (Korea Institute of Radiological & Medical Sciences)
Kim, Se-Hyun (Pohang Accelerator Laboratory)
Park, Chongdo (Pohang Accelerator Laboratory)

Publication Information

Applied Science and Convergence Technology / v.25, no.4, 2016 , pp. 67-72 More about this Journal

Abstract

This article describes an electrical network analysis (ENA) method to calculate the pressure distribution of a vacuum system in a molecular flow regime. The vacuum system was modeled using electrical components. For an accurate analysis, a complexly combined pipe model, excluding entrance conductance, was employed and the pressure distribution was simulated using ENA. A vacuum system comprising three vacuum pumps was used for simplicity. In addition, the ENA results were compared with results from finite element analysis (FEA) and experimental measurements. The pressure distribution profiles estimated from ENA, performed using the LTSpice IV software, were in agreement with FEA and experimental results.

Keywords

Vacuum calculation; Electrical network analysis; Molecular flow regime;

Citations & Related Records

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