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首页> 外文会议>ASME(American Society of Mechanical Engineers) Energy Sustainability Conference; 20070627-30; Long Beach,CA(US) >AIRFLOW DISTRIBUTION AND MICROENVIRONMENT EVALUATION OF MP TASK CONDITIONING SYSTEM
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AIRFLOW DISTRIBUTION AND MICROENVIRONMENT EVALUATION OF MP TASK CONDITIONING SYSTEM

机译：MP任务条件系统的气流分布和微环境评估

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摘要

During recent years an increasing amount of attention has been paid to air distribution systems with which officer can individually condition the immediate environment of their workstations. Fanger suggested supplying ventilation air that is unmixed with room air, directly to the breathing zone of each occupant. Task conditioning aims to provide each occupant with personalized clean air direct to the breathing zone. Each occupant can control the environment at his/her workplace. Microenvironment of a typical office workplace consisting of movable panel (MP) task conditioning systems was studied by numerical simulation. MP task conditioning systems were operated while a conventional HVAC system supplied air through a diffuser located in the ceiling. Air was exhausted through a ducted ceiling-level grill. Numerical simulation of 3-D turbulent flow (k-ε closure) was separately conducted to study the influence of supply velocity, air blowing distance and size of MP supply outlet on microenvironment. Three task conditioning velocities, 0.6, 0.8 and 1.0m/s, three sizes 0.3 × 0.15, 0.3×0.1 and 0.25 × 0.08m and two air blowing distances were studied. In addition to analyzing temperature and velocity distribution, Draught Rating (DR) and Predicted Percentage of Dissatisfied (PPD) of the room and workstation were studied.
机译：近年来，人们越来越关注空气分配系统，通过该系统，军官可以单独调节其工作站的周围环境。 Fanger建议将未与室内空气混合的通风空气直接提供给每个乘员的呼吸区域。任务调节旨在为每个乘员提供个性化的清洁空气，直接进入呼吸区域。每个占用者都可以在其工作场所控制环境。通过数值模拟研究了由活动面板（MP）任务调节系统组成的典型办公场所的微环境。在运行MP任务调节系统的同时，传统的HVAC系统通过位于天花板的扩散器供应空气。空气通过管道式天花板烤架排出。分别进行了3-D湍流（k-ε闭合）的数值模拟，以研究送风速度，送风距离和MP送风口尺寸对微环境的影响。研究了三种任务调节速度，分别为0.6、0.8和1.0m / s，三种尺寸为0.3×0.15、0.3×0.1和0.25×0.08m，以及两种吹气距离。除了分析温度和速度分布之外，还研究了房间和工作站的吃水等级（DR）和不满意的预测百分比（PPD）。

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