单风管可变风量系统通常使用串联和并联风扇驱动的终端装置来控制空调空间中的气流。开发了一个经实验室验证的单风管可变风量系统模型，以模拟串联和并联风机末端装置，其中末端装置风机由可控硅整流器或电子换向电机控制。本文提供了模拟风扇性能所需的方程式- 有动力的终端设备。这里开发的仿真模型包括一个五区办公楼，其性能在美国的五个城市中模拟:休斯敦、菲尼克斯、芝加哥、纽约和旧金山。该模型包括电厂总能量、冷却电厂总能量、一次风机能量、终端机组风机能量和附加热能。单风管变风量模拟结果表明，串联式办公楼的年能耗降低- 具有电子换向电机的风扇驱动终端装置与具有可控硅整流器控制电机的串联装置相比，位置不同。该建筑最大的节能地点是凤凰城（8.4%），最小的是芝加哥（5.9%）。在所有情况下，带有电子换向电机的终端单元风扇的用电量减少了近65%。这些结果表明，与使用硅的装置相比，使用带有电子换向电机的风扇驱动的终端装置可以节省大量能源- 受控整流器控制电机:ASHRAE交易，第118卷，第1部分，伊利诺伊州芝加哥

Single-duct variable-air-volume systems often use series- and parallel-fan-powered terminal units to control the airflow in conditioned spaces. A laboratory-verified model of single-duct variable-air-volume systems was developed to simulate both series and parallel fan terminal units where the terminal unit fans are controlled by either silicon-controlled rectifiers or electronically commutated motors.The paper provides the equation needed to simulate the performance of a fan-powered terminal unit. The simulation model developed here includes a five-zone office building whose performance was simulated in five cities in the United States: Houston, Phoenix, Chicago, New York, and San Francisco. The model includes total plant energy, total cooling plant energy, primary fan energy, terminal unit fan energy, and heat energy added.The single-duct variable-air-volume simulation results showed that the reduction in the annual energy used by the office building with series-fan-powered terminal units having electronically commutated motors compared to series units having silicon-controlled rectifier-controlled motors varied by location. The largest energy savings for the building was in Phoenix (8.4%), while the smallest was in Chicago (5.9%). In all cases, the reduction in electricity used by the terminal unit fans with electronically commutated motors was near 65%. These results indicate that using fan-powered terminal units with electronically commutated motors offers the potential for sizable savings in energy compared to units with silicon-controlled rectifier-controlled motors