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Measurement of Thermal Characteristics of Electric Unit for Sancheon High-Speed Railcar

고속열차 산천 전장품 발열특성 측정

  • Park, Won-Hee (Transportation Environmental Research Reserach Team, Korea Railroad Research Institute) ;
  • Yun, Su-hwan (High-speed Railroad Systems Research Center, Korea Railroad Research Institute) ;
  • Park, Choonsoo (High-speed Railroad Systems Research Center, Korea Railroad Research Institute)
  • 박원희 (한국철도기술연구원 교통환경연구팀) ;
  • 윤수환 (한국철도기술연구원 고속철도연구본부) ;
  • 박춘수 (한국철도기술연구원 고속철도연구본부)
  • Received : 2015.04.21
  • Accepted : 2015.06.11
  • Published : 2015.06.30

Abstract

The heat generated by electrical components during train operation was estimated by measuring the wall temperature in a locomotive, as well as the temperature and speed of the air entering from the outside and then returning to the outside. The temperatures of the electrical components and wall surface in a high-speed train were measured using an infrared camera. The heat generated by the electrical components was exhausted to the outside through a duct installed on the ceiling of the high-speed train. Thus, the temperature and speed of this exhaust air were measured, as well as those of the air entering the locomotive from the outside. The temperatures at the surfaces of the electrical components and walls in the locomotive were also measured using an attachment-type temperature sensor. In addition, the measurement results were applied to analyze how the heat characteristics of the electrical components were affected by the train operation.

열차 운행에 따른 전장품들의 발열을 예측하기 위해 동력차 내 벽면온도 및 외부 유출 온도 및 풍속, 외부로부터 유입되는 유입 공기의 유입 온도 및 속도를 측정하였다. 이를 위하여 적외선카메라를 이용하여 고속열차 내부의 전장품 및 벽 표면의 온도를 측정하였다. 또한 전장품에서 발생하는 열은 고속열차 천장에 설치된 덕트를 통하여 외부로 배출된다. 배출되는 공기의 온도 및 속도를 측정하였고, 외부에서 동력차 내부로 들어오는 유입공기의 온도 및 속도도 측정하였다. 또한 부착형 온도센서를 이용하여 동력차 내부의 벽 및 전장품 표면에서의 온도를 측정하였다. 측정된 결과를 이용하여 열차 주행에 따른 전장품의 발열 특성을 분석하였다.

Keywords

References

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