Abstract Following the increasing energy performances of building, ventilation systems are being considered as key actors in reaching both energy and indoor air quality targets. Despite several pollutants that can be used as airflow modulation inputs, French demand control ventilation for dwellings, is mainly realized using water vapour and passive sensors. A variable opening section is modulated through the relative humidity level within the room (or near the sensor). For the time being, the design step of such a system is realized using perfect systems: which means instantaneous opening variation as well as perfect modulation laws. This study aims at identifying the impact of both time delay and hysteresis on typical passive sensor devices. These elements are introduced from experimental measurements into nodal numerical models. A 4 room dwelling is considered as a test case and a step by step impact is analysed. The hysteresis is shown to have the greater impact on global extracted air flow. It leads to a conservative approach for IAQ targets but increases the energy criteria up to 6.6%.

中文翻译：

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使用 hygro 无源传感器的需求控制通风：传感器特性的影响

摘要 随着建筑能源性能的提高，通风系统被认为是实现能源和室内空气质量目标的关键因素。尽管有几种污染物可用作气流调节输入，但法国对住宅的需求控制通风主要是使用水蒸气和无源传感器实现的。可变开口部分通过房间内（或传感器附近）的相对湿度水平进行调节。目前，此类系统的设计步骤是使用完美系统实现的：这意味着瞬时开度变化以及完美的调制规律。本研究旨在确定时间延迟和滞后对典型无源传感器设备的影响。这些元素从实验测量引入到节点数值模型中。一个 4 居室住宅被视为一个测试案例，并逐步分析影响。滞后被证明对全球抽取的空气流量有更大的影响。它导致了 IAQ 目标的保守方法，但将能量标准提高到 6.6%。