论文标题
用多层绝缘技术在低温恒温器中减少热辐射
Heat radiation reduction in the cryostat with multilayer insulation technique
论文作者
论文摘要
多层绝缘(MLI)是低温器中辐射热负荷减少的重要技术。目前的工作集中于研究MLI系统中合适的反射层和间隔材料的研究。在我们的分析中,我们选择了带有dacron的双重铝制薄膜(大坝),带有丝网的未孔子大坝和带有玻璃组织的穿孔大坝,以评估其作为反射层以及MLI技术中的间隔材料。当前的工作将讨论层密度和层数对热负荷的效果的计算。知道MLI的关键参数,我们比较了球形和圆柱低温恒温器中的热负荷产生,以及在热载载上附近和外表面的分层效果。
Multilayer insulation (MLI) is an important technique for the reduction of radiation heat load in cryostats. The present work is focused on investigation for the selection of suitable reflective layer and spacer material in MLI systems. In our analysis, we have selected perforated double-Aluminized Mylar (DAM) with Dacron, unperforated DAM with Silk-net and perforated DAM with Glass-tissue for their evaluation as the reflective layer as well as spacer materials in MLI technique. Current work would discuss the calculation of the effect of layer density and the number of layers on the heat load. Knowing the key parameters of MLI, we have compared the heat load generation in spherical as well as cylindrical cryostats and the effect of layering near and outer surface on the heat load.