对采用比例或比例积分控制器的排气控制系统的动态性能进行了建模和分析。该模型包括传感器、控制器、执行器/阀门和加热线圈。加热盘管的数学模型是非线性的，因为它要求时间常数是水流量的函数。采用四阶预测-校正数值积分法求解数学模型。根据以下参数分析系统性能: 比例增益、积分增益、带和不带定位器的致动器、恒定和可变阀线圈增益。引用:研讨会，ASHRAE交易，第88卷，第2部分，加拿大多伦多

The dynamic performance of a discharge air control system with a proportional or proportional plus integral controller is modeled and analyzed. The model includes a sensor, controller, actuator/valve, and heating coil. The mathematical model of the heating coil is non-linear since it requires the time constant to be a function of the water flow rate. The solution of the mathematical model was obtained with the fourth-order predictor-corrector numerical integration method. System performance is analyzed as a function of the following parameters: proportional gain, integral gain, actuator with and without positioner, and with constant and variable valve-coil gain.