Evaluating the performance of ventilation systems in Canadian multi-unit residential buildings

多单元住宅(MURB)，如社会住房、公寓楼和共管公寓，已被发现在能源效率、居住者舒适度和室内空气质量(IAQ)方面表现不佳。更糟糕的是，此前已有多份报告称，该建筑内部爆发了新冠肺炎疫情，进一步危及居民的健康和福祉。鉴于在加拿大提供通风对能源的影响，以及充分通风对改善室内空气质量和减少病毒传播的好处，确保MURB内通风系统的适当设计和控制是至关重要的。因此，本研究的目的是评估机械通风系统在MURBS内的性能，因为它与能源效率、室内空气品质、通风输送和乘员舒适性有关。将在三个具有集中和分散通风系统的MURB(两个在多伦多，一个在温哥华)和多领域模型开发(气流和建筑能源模型)中进行实地研究活动，以了解通风系统的设计和控制对MURB能耗、室内空气质量和乘员舒适性的影响。此外，将使用开发的模型进行参数研究，以测试新技术和变化在现有通风系统中的应用。这项研究项目将产生关于(非)集中通风系统在MURB中的性能的新知识，导致用于评估通风系统性能的新的现场研究方法，以及其设计和控制的创新策略，所有这些都将改善MURB内的能源效率、室内空气质量和乘员舒适度。

Multi-unit residential buildings (MURBs), such as social housing, apartment buildings, and condominiums,have been found to underperform with respect to energy efficiency, occupant comfort, and indoor air quality (IAQ). To make matters worse, there have been numerous reports of COVID-19 outbreaks within this building form, further jeopardizing resident health and well-being. Given the energy implications associated with providing ventilation in Canada and the benefits of sufficient ventilation on improving IAQ and reducing virus transmission, it is essential to ensure proper design and control of ventilation systems within MURBs. Therefore, this research aims to assess mechanical ventilation system performance within MURBs as it relates to energy efficiency, IAQ, ventilation delivery, and occupant comfort. Field study campaigns in three MURBs with centralized and decentralized ventilation systems (two in Toronto and one in Vancouver) and multi-domain model development (airflow and building energy models) will be performed to understand the implications that the design and control of ventilation systems can have on MURB energy consumption, IAQ, and occupant comfort. In addition, parametric studies using the developed models will be conducted to test the application of novel technologies and variations to existing ventilation systems. This research project will generate new knowledge regarding the performance of (de)centralized ventilation systems in MURBs, lead to novel field study methods for assessing ventilation system performance, and to innovative strategies for their design and control, all of which will improve energy efficiency, IAQ, and occupant comfort within MURBs.