开发了数学模型，用于评估带有电子换向电机的超大风扇驱动终端装置在恒定和可变气流应用中的性能。这些模型可以很容易地在建筑能耗模拟程序中实现，以估计风机供电终端单元的年能耗。该模型是根据36个风扇/电机组合的数据开发的，这些组合使用的是商用风扇驱动终端装置，风扇电机的功率范围为0.33至1 hp（249至746 W），风扇静态排放压力范围为0.1至0.50 in。w、 g.（25至125帕）。36个风扇/电机组合中有6个的数据来自并联风扇- 有动力的终端设备。恒定气流模型所需的输入仅包括空间的设计流量和相对于设计气流的尺寸过大部分，以估计风扇驱动终端装置的功率和能量使用。对于可变气流模型，除了设计气流和分数过大外，还需要操作气流速率。为固定气流运行开发的模型用于分析在机组容量相对于设计气流过大，但机组在设计气流下运行的应用中，使用带电子换向电机的风扇驱动终端机组的影响。 分析表明，对于容量比设计气流大25%但在设计气流下运行的机组，功率（和能耗）降低约30%。此外，还为可变气流应用中的超大风扇驱动装置开发了通用模型。该通用模型可编程到建筑模拟程序中，以估算用于可变气流应用的风电终端装置的功率和节能。引文:2015年年度会议，佐治亚州亚特兰大，2015年交易，第121卷。2.

Mathematical models were developed for estimating theperformance of oversized fan-powered terminal units withelectronically commutated motors in both constant and variableairflow applications. These models can be readily implementedin building energy simulation programs to estimate theannual energy use of fan-powered terminal units. The modelswere developed from data from 36 fan/motor combinationsused in commercially available fan-powered terminal unitswith fan motors ranging from 0.33 to 1 hp (249 to 746 W) andfan static discharge pressures ranging from 0.1 to 0.50 in. w.g.(25 to 125 Pa). Data from six of the 36 fan/motor combinationswere from parallel fan-powered terminal units. The requiredinputs for the constant airflow model included only the designairflow for the space and fraction oversizing relative to thedesign airflow to estimate the power and energy use of the fanpoweredterminal unit. For the variable airflow model, theoperating airflow rate was required in addition to the designairflow and fraction oversizing. The model developed for fixedairflow operations was used to analyze the impact of using fanpoweredterminal units with electronically commutatedmotors in applications where the capacity of the unit is oversizedrelative to the design airflow but the unit is operated atthe design airflow. The analysis showed a reduction in power(and energy use) of approximately30%for a unit whose capacitywas 25% larger than the design airflow but was operatedat the design airflow.Amore general modelwasalso developedfor oversized fan-powered units in variable airflow applications.This general model could be programmed into buildingsimulation programs to estimate power and energy savings offan power terminal units used in variable airflow applications.