含钆夹胶真空复层玻璃导热模型

The heat transfer model of the Gd-containing laminate vacuum multiple glass

为了提高防中子玻璃的隔热性能,设计了一种新型防中子辐射含钆夹胶真空复层玻璃,并通过传热理论建立了复层玻璃传热模型.采用有限元方法,研究了中子辐射和高温环境下复层玻璃和含钆有机玻璃的隔热性能.理论分析与数值模拟结果表明:含钆夹胶真空复层玻璃设计可行;同等条件下,复层玻璃的热阻为含钆有机玻璃的3倍,具有良好的隔热性能.真空层可显著提高防中子玻璃的隔热性能.

To improve the heat insulation performance of the neutron shielding glass, a new neutron shielding glass, named the Gd-containing laminate vacuum multiple glass, is designed. Based on the basic theory of the heat transfer, the heat transfer mathematical model of the multiple glass is built. The heat insulation performance of the multiple glass and the Gd-containing plexiglass under the environment of the neutron radiation and high temperature is studied by using the finite element method. Theoretical analysis and numerical simulation result shows that the design of the Gd-containing laminate vacuum multiple glass is feasible. In the same condition, the thermal resistance of the multiple glass is 3 times that of the Gd-containing plexiglass. The multiple glass has good heat insulation performance. Vacuum layer can significantly improve the heat insulation performance of the neutron shielding glass.