Effective thermal conductivity of corrugated insulating materials -2nd report: evaluation of radiative heat transfer and improvement of insulating performance

摘要

The measurement of the effective thermal conductivity of corrugated insulating materials, the evaluation of beat transfer mechanism in these materials and the improvement of insulating effect of them are studied in this paper. It is recognized that the contribution of radiative heat transfer to effective thermal conductivity is almost equal to the heat rate by conduction. The fairly good improvement are obtained by attaching Al foils to upper and lower surfaces of air space of specimen.