Abstract

This study investigated the heat transfer between air flow and honeycomb ceramic air receiver. A one-dimensional model of the receiver was established considering the distribution of the solar radiation within the channel and the radiative heat transfer between the inner surfaces. The sensitivity studies had been done to explore the influences of the absorber geometric parameters, the incident solar radiation and the air flow rate on the receiver steady-state thermal efficiency and outlet air temperature. The minimal absorber length was analyzed to ensure high thermal efficiency, which is significant for the receiver design and optimization.

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