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Parametric Study on the Capacity of Vacuum Pump for Tube Structure  

Nam, Seong-Won (한국철도기술연구원 철도환경연구실)
Publication Information
Journal of the Korean Society for Railway / v.13, no.5, 2010 , pp. 516-520 More about this Journal
Abstract
Parametric study has been conducted to calculate the capacity of vacuum pump system that will be used to maintain the pressure of the tube structure under atmosphere level. Recently many railroad researchers pay attention to the tube train system as one of the super high speed transportation system. To achieve the super high speed, the inside of tube system should be maintained at low pressure level. In the low pressure environment, it is well known that air resistance of train is drastically decreased. Vacuum pump system will be used to make low pressure state for tube structure, exhaust the leakage air and supplement additional vacuum pumping. As results of these studies, we get the lump capacity of vacuum pump for various parameters. These results can be applied to analyze the effects of the reduction of air resistance.
Keywords
Tube Structure; Vacuum Pump; Low Pressure; Leakage; High Speed Transportation;
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  • Reference
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