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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Numerical Analysis of the Melting Process of Ice Using Plate Heaters with Constant Heat Flux

일정 열유속 조건의 판형 히터에 의한 해빙과정의 수치해석

  • Kim, Hark-Koo (Corporate Research & Development Division, Hyundai-Kia Motors) ;
  • Jeong, Si-Young (Department of Mechanical Engineering, Sogang University) ;
  • Hur, Nahm-Keon (Department of Mechanical Engineering, Sogang University) ;
  • Lim, Tae-Won (Corporate Research & Development Division, Hyundai-Kia Motors) ;
  • Park, Yong-Sun (Corporate Research & Development Division, Hyundai-Kia Motors)
  • 김학구 (현대자동차 연료전지자동차 개발팀) ;
  • 정시영 (서강대학교 기계공학과) ;
  • 허남건 (서강대학교 기계공학과) ;
  • 임태원 (현대자동차 연료전지자동차 개발팀) ;
  • 박용선 (현대자동차 연료전지자동차 개발팀)
  • Published : 2007.06.10
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Abstract

One of the cold start problems of a FCV is the freezing of the water in the water tank when a FCV is not in operation and the surrounding temperature drops below $0^{\circ}C$. The ice in the tank should be melted as quickly as possible for a satisfactory operation of fuel cell vehicles. In this study, the melting process for the constant heat fluxes of the plate heaters was numerically calculated in the 2-D model of the tank and plate heaters. The enthalpy method and FVM code was used for this analysis. The changes of the temperature with heat fluxes and the heat transfer area could be investigated. The energy balance error was found to increase with the heat flux. From this numerical analysis, the proper heat flux value and some important design factors relating local overheating and pressurization of the water tank could be examined.

Keywords

References

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