Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Control Method of Ventilating System for High Speed Train in a Tunnel

터널주행 고속전철의 환기시스템 제어 방법에 관한 연구

  • 최영석 (한국생산기술연구원 냉동공조연구팀)
  • Published : 2001.03.01
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Abstract

The present study develops programs simulating the internal pressure change of cars due to the change of external pressure when trains run into or passing each other in a tunnel. A new continuous ventilating system control method has been developed in order to alleviate the aural discomfort of passengers riding a high speed train. This method is based on the change of the charged and discharged flow rate by detecting the air pressures generated outside and inside of the train. When the outside and inside pressure are detected, the speed of the charge or exhaust fans and also the valve opening ratios are changed. The elementary performance of the system is checked using dta of the TGV-K high speed train at a speed of 300km/h. Moreover, applicability of the system to the Koran high speed train at a speed of 350 km/h is ascertained by simulation and its effectiveness as a means to alleviate the ear pains is confirmed. This application of the system to the Korean high speed vehicles running in the speed range of 350km/h is considered to have good prospect.

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References

  1. RTRI Report v.10 no.2 Review of Micro-pressure Wave Radiating from Tunnel Portal and Pressure Variation under Train Passage Maeda, T.
  2. RTRI Report v.4 no.3 How Can Passengers Have Their Ear Pains due to Air Pressure Change Mitigated? Sato, K.;Ikeda, M.;Nakagawa, M.
  3. RTRI Report v.6 no.6 Alleviating Aural Discomfort of Passengers under Shinkansen Speed up by Controlling Flow Rate in Ventilating System Kobayashi,M.;Suzuki,Y.;Akutsu,K.;Maebashi,E.
  4. RTRI Report v.4 no.6 Alleviating Ear Pains by Controlling Air Pressure in Ventilating System of Shinkansen Car Kobayashi, M.;Suzuki, Y.;Akutsu, K.
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