四家制造商提供了实验室气流和功率数据，作为37台带永久分裂电容器电机的多速风机盘管的外部静压函数。这些数据用于开发风机盘管机组的气流性能模型，该模型可在建筑模拟程序中实现。风机盘管机组的风机电机范围为0.033 hp至0.75 hp（25 W至560 W），最大气流范围为242 ft3/min至2646 ft3/min（0.11 m3/s至1.25 m3/s）。该模型包括每种速度设置下的标准化风扇电机功率和风扇气流。外部静压范围内的标准化功率与标准化气流数据通常绘制在每个速度设置下的一组数据中。对每台机组的平均标准化功率和气流进行了评估。将标准化值与高气流和功率曲线的线性拟合相结合，以开发生成气流和功率曲线作为外部静压函数的简单过程。 开发了一个程序来确定空气系统曲线与风机盘管气流和功率曲线的交点。由此产生的模型可用于描述特定制造商的永久分裂电容式风机盘管在多种速度和外部静压下的气流和功率性能。引用:2020年虚拟会议技术论文

Four manufacturers provided laboratory airflow andpower data as a function of external static pressure for37 multispeed fan-coil units with permanent split capacitormotors. These data were used to develop an airflow performancemodel of fan-coil units that could be implemented in abuilding simulation program. The fan-coil units had fanmotors ranging from 0.033 hp to 0.75 hp (25 W to 560 W) andmaximum airflows that ranged from 242 ft3/min to 2646 ft3/min(0.11 m3/s to 1.25 m3/s). The model included normalized fanmotor power and fan airflow at each speed setting. Thenormalized power versus normalized airflow data for therange of external static pressures typically plotted in a groupingof data at each speed setting. These average normalizedpowers and airflows were evaluated for each unit. The normalizedvalues were combined with a linear fit to the high airflowand power curves to develop a straightforward process forgenerating airflow and power curves as a function of externalstatic pressure. A procedure was developed to determine theintersection of the air system curve with the fan-coil airflowand power curves. The resulting model could be used todescribe the airflow and power performance of a specificmanufacturer’s permanent split capacitor fan-coil unit overmultiple speeds and external static pressures.