摘要
本文对杜瓦瓶的传热机制进行了定量分析，指出热辐射传热在杜瓦瓶情形下是不可忽略的。文中通过对热传递方程进行解析求解并结合有关产品数据，给出了杜瓦瓶夹壁中空气的热传导系数上限值。
An analysis of the mechanism of heat transfer in Dewar flask is made and shows that heat radiation in given case is not negligible.An analytical solution to the problem has been found and the corresponding heat conductivities of air are calculated.
出处
《长沙交通学院学报》
1995年第1期34-39,共6页
Journal of Changsha Communications University
关键词
热传导
热辐射
保温瓶
传热机制
分析
Dewar flask
heat conduction
heat radiation
mean free path of molecule
