Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Frozen and Melting Characteristics of Urea-aqueous Solution for Urea-SCR System by Circulation of Engine Coolant

엔진 냉각수 순환에 의한 urea-SCR 시스템용 요소수의 동결 및 해동 특성

  • 최병철 (전남대학교 기계시스템공학부) ;
  • 김영권 (전남대학교 대학원 기계공학과) ;
  • 김화남 (전남대학교 BK21 지능형기계시스템사업단)
  • Received : 2011.03.07
  • Accepted : 2011.05.22
  • Published : 2011.08.31
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Abstract

The purpose of this study is to investigate the best melting condition with various winding number of a heating pipe, supplying quantity of engine coolant and coolant temperature at the inlet of the heating pipe. Also, it is to suggest getting method of an appropriate quantity of the agent for the urea-SCR system within 10 minutes. For this matter, this study identifies the temperature distribution of inside of urea-tank while it is frozen at the low temperature condition, and suggests the best melting condition of the frozen urea within 10 minutes. From the results, it was found that 2L of melted urea was obtained by the coolant flow rate of 200L/hr at $70^{\circ}C$ for 10 minutes from the start of engine operating.

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References

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