【作者】 李志杰；

【导师】 王万江；

【作者基本信息】 新疆大学 ， 结构工程， 2006， 硕士

【摘要】 本论文主要对严寒地区居住建筑窗的传热系数限值和玻璃系统的传热性能进行分析和讨论。在当前节能50%的基础上对节能65%的传热系数限值和换气次数进行计算;利用美国加州大学劳伦斯-伯克利国家实验室开发的WINDOW5.2软件模拟双玻、三玻系统中填充空气或惰性气体的玻璃间层厚度以及Low-e玻璃镀膜位置对传热系数的影响。采用热箱法对单框三玻塑料窗进行实验研究,并采用数值迭代方法对理论公式进行计算与WINDOW5.2软件模拟结果对比分析。通过分析和计算得到乌鲁木齐地区节能65%时围护结构的传热系数限值,确定了单框双玻和单框三玻系统填充空气、各种惰性气体的最佳玻璃间隔层厚度及镀膜位置。实测窗户玻璃内外表面中心温度与数值迭代理论近似解以及软件模拟值极为接近,验证所得到的实验结果较为准确,为进一步研究节能窗户其他性能打下了良好基础。更多还原

【Abstract】 This thesis mainly discussses the limit value of overall heat transfer coefficient of energy efficiency window and performances of heat transfer of the glass system in the strict and cold region. It calculates the limit value of overall heat transfer coefficient and the times of room ventilation exchange on energy efficiency 65% at the base of energy efficiency 50%. It makes use of the WINDOW5.2 software of Lawrence Berkeley National Laboratory University of California,which simulates the glass spacing fill with the air , the inert gases and the positions of Low-e glass films to influence of the heat transfer coefficient in double-glazed, triple-glazed systems. Adopt experiment of the hot box method to carry on the research to the triple-glazed of single frame plastic windows, which contrast with the calculation of the theories formula in a method of numerical value repeatedly and the simulations of the WINDOW5.2 software.We get the limit value of overall heat transfer coefficient of window 1.8 W/(m2·K) and the times of room ventilation exchange 0.5次/h by calculation on energy 65%, making sure the best air space between the layers , the best inert gases space between the layers and coating the film position in the double-glazed or triple-glazed systems. The experiment results are near solution in theory and the simulations of software. It is good foundation for further research of the other functions of window.更多还原