Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Development of High-Temperature Heat Flux Gauge for Steel Quenching

강재 급속냉각용 고온 열유속게이지 개발

  • Lee, Jungho (Environment and Energy Systems Research Division, Korea Institute of Machinery and Materials (KIMM))
  • 이정호 (한국기계연구원 그린환경에너지기계연구본부)
  • Received : 2010.10.04
  • Accepted : 2010.10.29
  • Published : 2010.11.30
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Abstract

The present study was motivated by increasing demands on quantitative measurements of the heat flux through the water cooling and quenching process of hot steel. The local heat flux measurements are employed by a novel experimental technique that has a function of high-temperature heat flux gauge in which test block assemblies are directly used to measure the heat flux variation during water cooling and quenching of hot steel. The heat flux can be directly achieved by Fourier's law and is also compared with numerical estimation which is solved by inverse heat conduction problem (IHCP). The high-temperature heat flux gauge developed in this study can be applicable to measure cooling rate and history during the actual cooling applications of steelmaking process. In addition, the measurement uncertainty of heat flux is calculated by a quantitative uncertainty analysis which is based on the ANSI/ASME PTC 19.1-2005 standard.

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References

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