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在恒温恒湿房间中,有些设备往往要求气流不直吹入设备内部(有些设备是敞开着的或需要开启的)但又要进行一定的热交换。这就提出了要求平行气流的气流场。例如在设计冷藏柜测试室空气调节系统时,根据国际标准 ISO 规定,试验房间内部的气流方向应尽可能与陈列窗面以及纵向轴线平行,并在距窗面150公分的任何一点气流速度应是0.2±0.1米/秒;并且对于房间的温、湿度也有较高的要求,在五种不同气候(16℃、80%;22℃、65%;25℃、60%;30℃、55%;40℃、40%)中进行冷藏柜各种性能试验,温湿度偏
In constant temperature and humidity rooms, some devices often require that the airflow not be blown into the interior of the device (some are open or need to be opened) but require some heat exchange. This raises the airflow field that requires parallel airflow. For example, in the design of freezer test room air conditioning system, according to international standards ISO regulations, the test room interior air flow direction should be as much as possible with the display window and the longitudinal axis parallel to the window at any point 150 cm away from the airflow speed should be 0.2 ± 0.1 m / s; and there is also a high demand on the room temperature and humidity. In five different climates (16 ℃, 80%; 22 ℃, 65%; 25 ℃, 60%; 30 ℃, 55% 40 ℃, 40%) in a variety of performance test refrigerators, temperature and humidity bias