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Journal of KWJS 2003;21(7):65-70.
Published online December 25, 2003.
[연구논문] 열 방사율 측정시 표면거칠기의 영향
,
 
The Effect of Surface Roughness on Measuring Thermal Emissivity
Ki-Soo Oh, Shin-Chul Bae
Abstract
Thermal emissivity is generally affected by surface situation of material such as roughness. In this study, the effect of surface roughness on measuring thermal emissivity is experimented. And emissivity measurement method and equipment using hemisperical mirror is also reviewed. As the result of this research, thermal emissivity increased as long as increasing surface roughness. so, surface roughness is a essential check point when we measure the emissivity.


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