Glazing/shading models and software for green building simulation and design

用于绿色建筑模拟和设计的玻璃/遮阳模型和软件

• 批准号: 194471-2010
• 负责人: Wright, John
• 金额: $ 1.75万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=569785
• 关键词: Glazing; shading; models; software; green

The Advanced Glazing System Laboratory (AGSL) at the University of Waterloo has established an internationally recognized program of research dealing with the thermal performance of windows and shading systems. AGSL research entails a wide variety of activities including heat transfer measurements, solar and longwave optical measurements, computational fluid dynamics, development of theory and the formulation of engineering models. Much of this activity is aimed at the production of software - both for the purpose of rating window/shading system designs and for improving building energy simulation used for the successful design of green buildings. Green building design invariably entails high levels of insulation. Components such as low-emissivity (low-e) coatings and additional glazing layers increase the thermal resistance of a window and attenuate solar gain. However, even moderate levels of solar gain will cause a well insulated building to overheat. Solar gain is particularly troublesome because it is usually the largest and most variable heat gain. Much attention is now directed toward operable shading devices - devices that can admit solar energy when and where heating is needed, and reject it otherwise. In the context of peak load management solar gain is especially important. NSERC funding will be used for several projects that share the common goal of developing, testing and proving a new framework for window analysis. This new framework, based on recent AGSL theory, offers various benefits. Most important, it will be suitable for use in time-step building simulation because it is expected to be exceptionally fast. Raw speed makes it possible to incorporate models of sufficient detail and power to explore the intricate processes and interactions associated with shaded fenestration. It is also expected that the new framework will solve problems related to computational stability. In addition, experimental work will be undertaken to increase the accuracy of some of the convective heat transfer subcomponent models, increasing the accuracy of predicted peak cooling loads.

滑铁卢大学的高级玻璃系统实验室 (AGSL) 建立了一项国际公认的研究计划，研究窗户和遮阳系统的热性能。 AGSL 研究涉及各种各样的活动，包括传热测量、太阳和长波光学测量、计算流体动力学、理论发展和工程模型的制定。 这项活动的大部分目的是开发软件——既用于对窗户/遮阳系统设计进行评级，又用于改进用于成功设计绿色建筑的建筑能源模拟。 绿色建筑设计总是需要高水平的隔热。 低辐射率 (low-e) 涂层和附加玻璃层等组件会增加窗户的热阻并减弱太阳能增益。 然而，即使是中等水平的太阳能增益也会导致隔热良好的建筑物过热。 太阳能增益特别麻烦，因为它通常是最大且变化最大的热量增益。 现在很多注意力都集中在可操作的遮阳装置上——这些装置可以在需要加热的时间和地点吸收太阳能，否则拒绝太阳能。 在峰值负载管理的背景下，太阳能增益尤其重要。 NSERC 的资金将用于多个项目，这些项目的共同目标是开发、测试和证明新的窗口分析框架。 这个新框架基于最新的 AGSL 理论，具有多种优势。 最重要的是，它将适合用于时间步长建筑模拟，因为它预计会非常快。 原始速度使得整合足够细节和功能的模型成为可能，以探索与阴影开窗相关的复杂过程和相互作用。 预计新框架将解决与计算稳定性相关的问题。 此外，还将开展实验工作，以提高某些对流换热子组件模型的准确性，从而提高预测峰值冷负荷的准确性。