The symmetry and asymmetrical attenuation gradient of temperature on flezible multilayer films

摘要：

An ideal heat transfer model of flexible multilayer insulation films is presented. There are three basic modes of heat transfer (thermal radiation, solid spacer and residual gas comnduction) through the flexible multilayer insulation films. The theoretical calculations of the symmetrical and a-symmetrical attenuation gradient attenuation gradient for flexible multilayer insulation films temperature distribution are given. For the symmetrical decay in the gradient, the temperatures of the inner and outer layers, the number of layers are set, then the temperature distribution on only radiation heat transfer,only thermal conductivity and combined the two ways of heat transfer are calculated using Newton iterative method through Matlab. For asymmetrical attenuation gradient, the necessary layers of flexible insulation condition for 200t and-120t insulation are calculated. And the temperature distribution of each condition is calculated too. By comparing, theoretical method for flexible multilayer insulation which is discussed is educed.

关键词： flezible multilayer film symmetry and asymmetrica temperature attenuation

作者: CHEN Jin-jing YU Wei-dong

作者单位: College of Textile, Donghua University, Shanghai 201620, China College of Textile, Donghua University, Shanghai 201620, China Institute of Textile and Materials, W

会议类型: 国际会议

会议名称: 2009 International Teztile Science and Technology Forum(2009国际纺织科学技术论坛)

会议地点: 西安

会议语种:英文

页码: 304-309

在线出版日期: 2009-04-01（万方平台首次上网日期，不代表论文的发表时间）