首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 SE-14-C062
到馆提醒
收藏跟踪
购买正版
Corridor Pressurization System Performance in Multi-Unit Residential Buildings 多单元住宅楼道增压系统的性能
在北美,基于走廊增压的通风系统广泛用于中高层多单元住宅建筑的通风。本文总结了一项评估这些系统性能的研究,该研究基于一个实验项目,该项目以一座经过节能建筑围护结构改造的建筑为例。特别是,将评估这些系统向建筑区域提供通风空气的效率和有效性,以及通风系统与外部环境之间的相互作用。在案例研究大楼进行的实验计划包括测量补充空气装置提供的气流速度、使用全氟化碳示踪法测量大楼各区域之间的气流速度,以及长距离测量- 长期监测压差。外部条件包括风速和风向、温度和相对湿度,使用安装在建筑物屋顶上的气象站进行监测,以便评估建筑物与外部环境之间的相互作用。还对套房样品进行了均压气密性测试,以测量外部外壳和内部分隔元件提供的气密性。本文介绍了这一广泛实验计划的结果,并就气流驱动力(风、烟囱效应和机械通风系统)与物理建筑之间的相互作用得出了结论,从而在中期形成气流模式- 适用于高层多单元住宅建筑。对走廊增压通风系统的性能进行了具体评估,包括讨论其有限的使用潜力,因为通常测量的性能较差,能源效率和室内空气质量预期不断提高。总的来说,本研究旨在提高对走廊增压通风系统性能的理解,以及对中高层多单元住宅建筑气流模式的一般理解。这些知识可以应用于改进通风系统的设计和这些建筑的分区策略。努力将研究结论扩展到对行业有意义的建议。 引文:ASHRAE论文CD:2014 ASHRAE年会,华盛顿州西雅图
Corridor pressurization based ventilation systems are pervasively used to ventilate mid- to high-rise multi-unit residential buildings in NorthAmerica. This paper provides a summary of a study evaluating the performance of these systems based on an experimental program conducted ata case study building which has undergone an energy efficient building enclosure retrofit. In particular, the efficiency and effectiveness of thesesystems at providing ventilation air to the zones of the building will be assessed, along with the interaction between the ventilation system and theexterior environment.The experimental program carried out at the case study building includes measurement of airflow rates provided by the make-up air unit,measurement of flow rates between zones of the building using perfluorocarbon tracer methods, and long-term monitoring of pressure differences.Exterior conditions including wind speed and direction, temperature, and relative humidity were monitored using a weather station installed on theroof of the building to allow for evaluation of the interaction between the building and the exterior environment. Pressure equalized airtightnesstesting was also performed on a sample of suites to measure the airtightness provided by both the exterior enclosure and interiorcompartmentalizing elements. The results of this extensive experimental program are presented and conclusions are drawn with regards to theinteraction of the driving forces of airflow (wind, stack effect, and mechanical ventilation systems) with the physical building to create airflowpatterns in mid- to high-rise multi-unit residential buildings. The performance of the corridor pressurization ventilation system is specificallyevaluated including discussion of its limited potential for use moving forward due to generally poor measured performance and increasing energyefficiency and indoor air quality expectations.Overall, this study works to improve the understanding of corridor pressurization based ventilation system performance as well as the generalunderstanding of airflow patterns in mid- to high-rise multi-unit residential buildings. This knowledge can then be applied to the design ofimproved ventilation systems and compartmentalization strategies for these buildings. Effort is made to extend the conclusions of the study tomeaningful recommendations for industry.
分类信息
发布单位或类别: 未知国家-其他未分类
关联关系
研制信息
相似标准/计划/法规