Development, in situ monitoring and hygrothermal analysis of next generation spandrels for Canadian climate******

幕墙是现代建筑围护结构的重要组成部分。它们是非结构元件，通常采用铝挤压和玻璃设计。像所有类型的围护结构一样，它们在室内环境和外部环境之间创造了一道屏障，从而保护建筑物免受雨水、湿气、热量和空气的渗透。幕墙系统的视觉玻璃部分是居住者可以看到外面的部分，而拱肩或非视觉玻璃是幕墙系统的剩余部分，例如，可以用来隐藏结构，管道等，从外面看。悬臂梁在幕墙系统的传热方面可能是一个薄弱的因素，特别是在加拿大这样的寒冷气候中。然而，它们的性能并没有在科学文献或灰色文献中得到很好的记录，目前也没有像其他幕墙元素那样的规范程序。该项目将重点分析和开发下一代拱架系统。该项目的目标是更好地了解不同级别和类型的隔热材料以及不同压力管理/通风策略的悬臂梁中的热量和水分传递。这些知识将有助于行业改进拱梁系统，满足更节能建筑的要求。该项目将包括开发传热模型，以评估不同设计的性能，以及在位于拉瓦尔大学****校园的测试台上对幕墙系统进行传热监测

Curtain walls are an important component of modern building envelopes. They are non-structural elements that are typically designed with aluminum extrusions and glass. Like every type of envelopes, they create a barrier between the indoor environment and the exterior, thus protecting the buidling from rain, moisture, heat and air infiltrations. The vision glass portion of the curtain wall system is the one through which occupants can see outside, whereas the spandrel or non-vision glass is the remaining portion of the curtain wall system, which can be used, for example, to hide the structure, ducts, etc., from the outside. Spandrels can be a weak element in terms of heat transfer in curtain wall systems, in particular in cold climats such as that of Canada. Nevertheless, their performance is not well documented in scientific or gray literature, and there is currently no normative procedure to do so as exists for other elements of curtain walls. This project will focus on the analysis and development of next-generation spandrel systems. The objective of the project is to develop a better understanding of the heat and moisture transfer in spandrels with different levels and types of insulation and different pressure management/ventilation strategies. This knowledge will help the industry to improve the spandrel systems and meet the requirements for more energy-efficient buildings. The project will involve the development of heat transfer models to assess the performance of different designs, as well as the heat transfer monitoring of curtain wall systems on a test bench located on the campus of Université Laval.****