节能是动物设施最重要的问题之一，因为为了提供良好的室内空气质量（IAQ），需要消耗大量能源。需求控制通风（DCV）有望通过根据动物占用率或其他室内空气品质因素降低通风率来节约能源。作为日本动物设施DCV的第一步，我们安装了先进的VAV系统，用户可以通过楼宇自动化系统（BAS）的终端PC设置每个房间的通风率，作为手动操作的DCV。该VAV系统具有以下三个特点: 1） 每个供气VAV装置都会存储房间容积，并根据设定的通风率（例如每小时12次）计算所需的风量。2） 文丘里气流阀用于通过体积气流控制同时移动的供气和排气。3） 每个排气VAV单元都有先进的算法，可以根据室内压力的测量值调整偏移值。在不同通风速率下，模拟（设计阶段）和测量（调试阶段）动物饲养室内的温度分布。此外，在调试阶段还测试了增压控制的性能。 这些现场测试表明，该VAV系统可以为可能的自动化DCV提供足够的通风率灵活性。引用:ASHRAE论文CD:2014 ASHRAE冬季会议，纽约

Energy saving is one of the most important issues of animal facilities because a lot of energy is used in order to provide good indoor air quality (IAQ). Demand control ventilation (DCV) is expected to save energy by reducing ventilation rates in accordance with animal occupancy or other IAQ factors. As the first step of DCV in an animal facility in Japan, we installed advanced VAV system which enables users to set ventilation rates of each room from terminal PCs of building automation systems (BAS), as a manually operated DCV. This VAV system has three features as follows: 1) Each supply VAV unit memorizes room volume and calculate required airflow-volume from the set ventilation rates (e.g., 12 times per hour). 2) Venturi airflow-valves are used for supply and exhaust that move simultaneously by volumetric airflow control. 3) Each exhaust VAV unit has advanced algorithm that adjusts offset value in accordance with measurement value of room pressure. Temperature distribution in the animal holding room was simulated (in design phase) and measured (in commissioning phase) under various ventilation rates. In addition, performance of pressurization control was also tested in commissioning phase. These field tests showed this VAV system could provide sufficient performance in terms of ventilation rates flexibility for possible automated DCV.