基于Zonal Model信息的单体建筑热水供暖系统控制策略仿真

本文通过创建房间Zonal Model和热水供暖系统数学模型,模拟分析了室内空气温度场和速度场的分布及控制系统动态响应.而后利用测试室温作为反馈信号,对3种控制策略的控制效果和能耗进行了模拟.结果显示,基于Zonal Model信息的控制系统能够反映供暖系统的动态变化过程；仅采用室外气候补偿器时的室温波动较大；应用供水温度和散热器循环流量两级控制策略既可提高室内热舒适性和控制精度,又可获得10.5％～15.9％的节能效益.

Simulation on Control Strategies for a Hot Water Heating System in a Single Building Based on Zonal Model Information

In this paper,by developing a zonal model for a room and a dynamic model for a hot water heating system,distributions of indoor air temperature and velocity,and responses of the control system were simulated and analyzed.Control effects and energy consumptions of three types of control strategies were tested based on the feedback signal of measured indoor air temperature.Simulation results demonstrated that the control systems based on the zonal model information could track the dynamic process of the heating system effectively,and the fluctuation of indoor air temperatures could be large if only an outdoor air temperature compensator was utilized.Besides,by the regulation of supply water temperature and circulating water flow rate entering the baseboard heater,the indoor thermal comfort and control accuracy could be improved,and the energy-saving of 10.5%~15.9% could be achieved.