变风量空调风系统控制优化与模拟
Control optimization and simulation of VAV air system
摘要：
提出采用送风静压和送风温度优化控制方法实现对空气处理机组优化控制的策略。以一栋实际建筑为例，对其变风量空调风系统进行了优化，利用TRNSYS对标准层的风系统建立了仿真模型，用于计算变风量系统优化控制前后的风机能耗，用实测数据验证了该模型的可靠性。以现场采用的优化控制后的送风量和静压设定值作为变风量模型的输入参数，在冬季实验日工况下，标准层优化控制后的节能率模拟结果为19.38%，整个建筑实测节能率为27.88%，表明该优化控制方法能有效减少风机能耗。
Abstract：
Presents a control optimization strategy of AHU based on the control optimization of the static pressure and temperature of supply air. Taking an actual building as example, optimizes the control strategy of the air system of the VAV system. TRNSYS is used to establish a model of VAV air system for a typical floor to calculate the energy consumption of the fan before and after control optimization, which is verified by measured data. In winter test day, with the input of supply air rate measured under variable pressure strategy and set static pressure, the simulation energy efficiency is about 19.38% for the typical floor, while the measured one of the whole building is 27.88%. The result shows that the optimal control scheme can reduce the energy consumption of the AHU fan efficiently.
Keywords:VAV air conditioning system, control optimization, supply air temperature, energy saving, variable static pressure, constant static pressure