本研究旨在开发和评估一种可用于连续测量畜舍风扇通风率的方法。该方法使用两个带孔的管子测量速度压力。一根管子上的孔直接面向上游，以检测总压力，而第二根管子上的孔直接面向下游，以检测静压。将测量装置置于测试风扇上游，并使用27英寸的。27英寸。（68cm×68cm）导管的效果最好。在静态压力为10.0的情况下。对于测试的轴流风机，预测值与测量值的绝对偏差范围为18 cfm（31 m3/h）至52 cfm（88 m3/h）。 此外，这种设置对风扇性能的影响很小。这项研究证明了在牲畜建筑中使用该方法测量通风率的潜力。单位:双引文:研讨会，ASHRAE交易，1998年，第104卷，pt。1A，旧金山

This study was conducted to develop and evaluate a method that can be used to continuously measure fan ventilation rates in livestock buildings. The method involved measurement of velocity pressures using two tubes with holes. The holes in one tube faced directly upstream to sense total pressure, while those in the second tube faced directly downstream to sense static pressure. Positioning the measuring unit upstream of the test fan and using a 27 in. × 27 in. (68 cm × 68 cm) duct provided the best results. For this setup and at a static pressure of 0.10 in. water (25 Pa), the absolute deviations of predicted values from measured values ranged from 18 cfm (31 m3/h) to 52 cfm (88 m3/h) for the axial fans tested. Additionally, this setup had only slight effects on fan performance. This study demonstrated the potential of using the method for ventilation rate measurement in livestock buildings.Units: Dual