摘要
为简化地板辐射供暖系统的传热计算,将多表面间的辐射传热简化为地板表面与非热表面间的辐射传热,以此建立了地板辐射供暖系统的简化传热计算模型。对地板辐射供暖系统的简化传热计算模型的计算精度及地板辐射传热量占总传热量的比例进行了实验研究。通过实验研究计算得出简化传热计算模型的计算精度为±4%。地板传热量中辐射传热约占60%,在各非热表面中,屋顶面辐射传热比例最大,外墙较内墙大。
To simplify the calculation of heat transfer for radiant floor heating system, the radiant heat transfer between several surfaces is simplified into radiant heat transfer between floor surface and unheated surface, and on the basis of that, a calculation model of simplified heat transfer for radiant floor heating system is established. An experimental study on the calculation precision of the model of simplified heat transfer for radiant floor heating system and the proportion of radiant floor heat transfer in total heat transfer is carried out. The result shows that the calculation precision of the model is ± 4%. The proportion of radiant heat transfer in floor heat transfer is 60%, and for all unheated surfaces, the proportion of radiant heat transfer of roof surface is the maximum, and the proportion of radiant heat transfer of external wall is larger than that of internal wall.
出处
《煤气与热力》
2006年第8期69-72,共4页
Gas & Heat
关键词
地板辐射供暖
传热计算
非热表面
radiant floor heating
calculation of heat transfer
unheated surface
