ふく射性ガスの非灰色性質を利用したふく射伝熱促進 : 第2報,非流動系における燃焼ガス

概要

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Enhancement effect in radiation heat transfer based on the multi-bands feature of radiative gas such as CO_2 and H_2O was proposed in the 1 st report. This report deals with the same problem for combustion gas which contains CO_2 and H_2O at the same time. Taking into account conditions in real furnaces, a band model analysis is carried out for the system of high temperature combustion gas surrounded by two parallel infinite heat absorbing surfaces. Nearly 30% enhancement is found to be attained by putting a solid surface between two parallel surfaces. The influence of gas temperature, heat absorbing surface temperature and distance between the surfaces on the enhancement performance is made clear. It is also found that the enhancement effect increases with the increases of emissivity of the solid surface. This suggests the use of insulating surfaces of high emissivity for further heat transfer enhancement.
一般社団法人日本機械学会の論文
1986-01-25