Development of a Direct-to-Suite Ventilation System for Multi-Unit Residential Building Retrofits

开发用于多单元住宅楼改造的直接到套房的通风系统

• 批准号: 541951-2019
• 负责人: Touchie, Marianne
• 金额: $ 1.82万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=680472
• 关键词: Development; Direct; Suite; Ventilation; System

Post-war multi-unit residential buildings are typically ventilated using a centralized make-up air unit (MAU), which is intended to positively pressurize the common building corridors and provide ventilation air to suites through door undercuts. Overcladding retrofits for these buildings are gaining popularity as they offer better thermal comfort and energy efficiency by improving building air tightness and insulation levels. However, as a result of these retrofits, the pressurized corridor ventilation strategy is becoming insufficient. The need for alternative ventilation strategies in these buildings is opening up a retrofit market which Nu-Air Ventilation Systems Inc. plans to capitalize on with a new low-profile, high-efficiency, heat/energy recovery ventilator (H/ERV).Through this research partnership, the H/ERV unit design will be optimized with respect to air flow rate requirements for different system layouts, unit dimensions including the height-to-width ratio, thermal efficiency compared to national standards and incentive program requirements, and hardware cost to ensure acceptability by a large market share. To determine the requirements for the design, computer simulations calibrated with field data will be used. These simulations will be based on a case study building in Ontario, representing Nu-Air's target archetype building.This process will leverage rarely collected interzonal air leakage data and air flow data derived from fan-pressurization and tracer gas testing to calibrate the airflow models. This unique approach will ensure a more realistic representation of these building types compared to existing models, to help develop the first H/ERV specifically designed for this retrofit application. This project will allow Nu-Air to bolster their H/ERV product line and give them a competitive advantage in the global marketplace, simultaneously strengthening the Canadian economy.

战后多单元的住宅建筑通常使用集中的化妆空气单元（MAU）进行通风，该建筑物旨在使通用建筑走廊的正向加压，并通过门底盘为套件提供通风空气。这些建筑物的超基层改造越来越受欢迎，因为它们通过改善建筑空气紧密度和隔热水平来提供更好的热舒适度和能源效率。 但是，由于这些改造，加压的走廊通风策略变得不足。这些建筑物中替代通风策略的需求是开放一个改造市场，NU-Air通风系统公司计划通过新的低调，高效率，热量/能量回收通风机（H/ERV）来利用。该研究合作伙伴关系，H/ERV单元设计将针对不同系统布局的空气流量要求，单位尺寸，包括高度宽度比，与国家标准相比的热效率和激励计划要求以及硬件成本进行优化确保大量市场份额的可接受性。为了确定设计的要求，将使用使用字段数据校准的计算机模拟。这些模拟将基于安大略省的案例研究建设，代表NU-Air的目标原型建筑。此过程将利用很少收集的分区间空气泄漏数据和来自风扇压力的空气流量数据，并从风扇压力和示踪气体测试中校准了气流模型。与现有模型相比，这种独特的方法将确保这些建筑类型的更现实表示，以帮助开发专门为此改造应用设计的第一个H/ERV。该项目将使Nu-Air能够加强其H/ERV产品系列，并在全球市场上具有竞争优势，同时增强加拿大经济。