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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Surface Temperature Control of an Insulated Horizontal Pipe under Thermal Radiation Environment

복사효과를 포함하는 수평관 표면의 온도제어

  • 강병하 (국민대학교 기계시스템공학부) ;
  • 피창헌 (국민대학교 대학원) ;
  • 김석현 (국민대학교 기계시스템공학부)
  • Received : 2010.09.03
  • Accepted : 2010.12.02
  • Published : 2011.01.10
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Abstract

Procedures for estimation of insulation thickness for a horizontal pipe for condensation control or personnel protection has been investigated, parallel to the previous work of a vertical wall case. Parameters include pipe diameter, emissivity, thermal conductivity, and operating temperatures. The results indicated that the surface emissivity plays a very important role in the design of insulation, specially for the case of high temperature application with low Bi. The effect of surface radiation in such case could be up to 65% of the total. Required insulation thickness for the surface temperature control increases as pipe diameter increases and as surface emissivity decreases. Adequate revision of specifications or standards to include newly invented insulation materials with high emissivity has been also suggested.

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References

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Cited by

  1. Analysis on Surface Temperature Control of an Insulated Vertical Wall Under Thermal Radiation Environment vol.24, pp.4, 2012, https://doi.org/10.6110/KJACR.2012.24.4.323