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Erschienen in:
2018 | OriginalPaper | Buchkapitel
4. Recessed and Protruding Heated Horizontal Surfaces
verfasst von : Patrick H. Oosthuizen, Abdulrahim Y. Kalendar
Erschienen in: Natural Convective Heat Transfer from Horizontal and Near Horizontal Surfaces
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Abstract
Attention here has been given to natural convective heat transfer from a heated plane surface that is either recessed into an adiabatic surrounding surface or protrudes from a surrounding adiabatic surface. The case of a heated surface having a circular shape and the case of a heated surface that is two-dimensional are considered. The results show that for both the heated surface shapes considered, when the heated surface protrudes from the surrounding adiabatic surface the height to which the heated surface protrudes has only a very small effect on the heat transfer rate. However, the results also show that when the heated surface is recessed into the surrounding adiabatic surface the depth to which the surface is recessed has quite a significant effect on the heat transfer rate.