The cross sections of the plastic pipe, the heat-insulating layer and the aluminum foil are round as optimization, and the heat-insulating layer is made of PE foam materials. 作为优选,所述塑料管、保温层和铝箔的截面为圆形,保温层为PE泡沫材料。
The heat transferring drum pipe, its heat insulativity and its heat-insulating Layer's thickness have not the distance scale. 对于圆筒输热管,其热绝缘性能与绝热层厚度之间的关系,远非象平壁那样呈线性关系。
Specifically, how pore existing way, pore distribution and film thickness affect the thermal and mechanical properties of porous silicon heat-insulating layer is analysed and explained. 本文的研究内容是对多孔硅绝热层的热学和力学性质进行理论建模研究,分析和解释孔洞存在方式、孔洞分布情况以及膜厚对于多孔硅绝热层力学和热学性能的影响。