论文部分内容阅读
本文详细地讨论了太阳能利用及建筑热物理中经常遇到的多层透明盖板-吸热板系统的辐射换热问题。文中第一部份提出了任意层透明盖板-吸热板系统中,吸热板(墙)和透明盖板所吸收的太阳辐射能的计算方法,并给出了实例计算结果。文中第二部份讨论了在透明盖板对远红外辐射透明时,透明盖板-吸热板系统中吸热板的净辐射热损的计算。文中推得的计算公式不仅使用方便,且具有明确的物理意义。
This paper discusses in detail the radiation heat transfer problems of the multi-layer transparent cover plate-heat-absorbing plate system which is often encountered in solar energy utilization and building thermal physics. In the first part of the paper, the calculation method of solar radiation energy absorbed by the heat absorption plate (wall) and the transparent cover plate in any layer of transparent cover plate - heat absorption plate system is given, and the calculation example is given. The second part of the article discusses the calculation of the net radiant heat loss of the heat sink in the transparent cover-plate heatsink system when the transparent cover is transparent to far-infrared radiation. The formulas deduced in this paper are not only easy to use, but also have clear physical meaning.