대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제18권1호
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- Pages.156-165
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- 1994
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- 1225-5963(pISSN)
DOI QR Code
복사가열되는 적층원판의 비정상 열전달해석
Analysis of Unsteady Heat Transfer of Radiatively Heated Stacked Disks
초록
Unsteady heat conduction in stacked disks in a furnace has been numerically solved The effects of relevant parameters such as disk spacing, aspect ratio, environmental temperature, Biot nember, etc. have been investigated. The highest temperature appears at the disk edge and the lowest at the center. Penetration of heat form the surface to the center requires some time. Heating should be slow for uniform temperature rise. Geometric parameters complicates the radiative and conductive heat transfer. Though the resulting dependence of temperature nonuniformity on various parameters is complicated, high uniformity of temperature is in general available by low Biot number and/or low environmental temperature.