| 摘要 |
Arrangement of a burner ( 2 ) and a heat exchanger ( 1 ), the heat exchanger ( 1 ) including a plurality of heat exchange elements ( 3 ) interconnected to each other with intermediate gaps, the heat exchanger ( 1 ) being arranged with an inlet ( 4' ) and an outlet ( 5' ), the burner ( 2 ) being connected at the inlet ( 4' ) to the heat exchanger ( 1 ) for providing energy to the heat exchanger ( 1 ) by burning a fuel gas, the heat exchanger ( 1 ) being arranged, in use, for heat transfer firm an outer surface of the heat exchange elements ( 3 ) to process air as a secondary gas, the burner ( 2 ) being arranged to burn the fuel gas inside the heat exchanger ( 1 ), wherein the heat exchanger ( 1 ) is constructed from a high temperature material to allow, in use, heat transfer to the secondary gas by radiation of the heat exchange elements ( 3 ), the radiation being in a visible range of the spectrum, the heat exchanger having a surface temperature in the range of 450-1000° C.
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