摘要
针对用于高温气体换热的列管换热器的设计,提出在传热计算中应考虑热辐射问题.建立了关于辐射传热计算的简化处理方法,得出了辐射传热膜系数的计算公式,并就需要进一步研究的问题提出了建议.
This paper points out that in calculating heat transfer of tubular heat exchangers, which are designed for heat cxchangc of high temperature gases, radiative heat transfer should be taken into considcration. The paper cstablishes a simplified model for calculating radiative heat transfer and dcrlvcs formulas for calculating the coefficient of thetransfer. Several suggcstions for thc problcms to be further studied are also made.
关键词
列管换热器
辐射传热
传热膜系数
换热器
传热
tubular heat exchanger
radiative heat transfer
heat transfer membrane coefficient