Natural convection heat transfer from an external receiver

ABSTRACT:
A numerical solution of turbulent, two-dimensional, natural convection heat transfer for a high temperature, vertical surface is presented in this work. This is relevant to heat transfer from the receiver of a solar central receiver power plant on a calm day (no wind). It is the lower

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bound of convective loss from an external receiver. Application of wall suction to the receiver surface is also examined as a means of reducing convective loss. Several conclusions can be drawn from the results. First, natural convection heat transfer caused by high operating temperatures and long vertical surfaces is an important heat loss mechanism from a receiver. Second, heat transfer correlations based on experimental work at much lower temperatures and Grashof numbers f

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