传热系数自调节墙体的调节机理及对新疆地区室内热环境影响的基础研究

The diurnal temperature range in Xinjiang is relatively high to other area; therefore the outdoor air can be used as natural cold and heat source. But heat transfer coefficient of traditional wall is fixed during the outside temperature fluctuation process, it can not be timely increase "good" building heat transfer or reduce "harmful" building heat transfer, which limits the utilization of natural cold and heat source for building heat transfer. This study propose a new concept of automatic adjustment of wall heat transfer coefficient, by adding a thermal resistance variable layer in the wall to implement the wall heat transfer coefficient automatic regulated with the variation of the outdoor temperature, to achieve the purpose of utilization natural cold and heat source. This project will develop basic research on heat transfer coefficient self-regulation mechanism of different wall construction; find the optimal wall construction that has the best self-regulation heat transfer coefficient, and then form a set of precise self-regulation heat transfer coefficient theory. At the same time analysis the indoor thermal environment regulating characteristic when applying self-regulation heat transfer coefficient wall in building; assess the energy saving potential, forming a set of theoretical analysis of indoor thermal environment based on self-regulation heat transfer coefficient wall. The research result can provide the basic theoretical for application of this kind of wall. Finally, analysis the influence factors on self-regulation wall performance analysis, obtain the optimization matching relationship of each factor through theory analysis and experiment, get application data of proposed wall, then the optimization design method for self-regulation heat transfer coefficient wall will be given.

对气温日较差很大的新疆地区来说，室外空气是一种天然的冷热源，但传统墙体的传热系数是固定不变的，其在室外温度波动过程中无法及时的增加建筑“有益”传热，减少建筑“有害”传热，因此限制了建筑对天然冷热源的利用。本研究提出了传热系数自动调节墙体的概念，通过在墙体添加变热阻层，实现墙体传热系数随着室外温度变化自动调节，来达到利用天然冷热源的目的。本项目将对不同方式的墙体传热系数调节机理展开研究，找到最优的传热系数自动调节墙体结构，实现传热系数的精准调节，形成一套传热系数精准调节理论。同时分析应用传热系数自动调节墙体建筑的室内热环境调节特性，并评估墙体节能潜力，形成一套基于变传热系数墙体的室内热环境分析理论，为此类墙体的应用提供理论基础。最后，对影响墙体调节性能的因素进行分析，从理论与实验两方面研究它们的优化匹配关系，得到墙体基础应用数据，给出传热系数自动调节墙体的优化设计方法。

对气温日较差很大的新疆地区来说，室外空气是一种天然的冷热源，但传统墙体的传.热系数是固定不变的，其在室外温度波动过程中无法及时的增加建筑“有益”传热，减少.建筑“有害”传热，因此限制了建筑对天然冷热源的利用。本研究提出了传热系数自动调.节墙体的概念，通过在墙体添加变热阻层，实现墙体传热系数随着室外温度变化自动调节.，来达到利用天然冷热源的目的。本项目将对不同方式的墙体传热系数调节机理展开研究.，找到最优的传热系数自动调节墙体结构，实现传热系数的精准调节，形成一套传热系数.精准调节理论。同时分析应用传热系数自动调节墙体建筑的室内热环境调节特性，并评估.墙体节能潜力，形成一套基于变传热系数墙体的室内热环境分析理论，为此类墙体的应用.提供理论基础。最后，对影响墙体调节性能的因素进行分析，从理论与实验两方面研究它.们的优化匹配关系，得到墙体基础应用数据，给出传热系数自动调节墙体的优化设计方法.。