Application of ultra-stable TO-8 pressductor in measuring coefficient of thermal conductivity of air;

Based on author's residual function prediction model of vaporization heat for pure components,combined with Liu Hongqins equation between liquid thermal conductivity and vaporization heat,a new residual function model of thermal conductivity for pure liquid is derived.

The effect of wall thermal conductivity(ks) and wall heat capacity(Cs) were discussed.

With the three basic methods of heat transfer (heat radiation,residual gas conduction and solid contact conduction),the performance of the normal heat transfer in multilayer insulation has been studied and discussed in detail.