通断控制风机盘管水系统特性研究
Characteristics of fan-coil water system with on-off control
摘要：
应用概率论方法，计算了不同房间负荷下某时刻风机盘管水系统通断阀的总开启率。采用所有风机盘管开启率的加权平均值计算风机盘管水系统的总开启率，误差小于1%。在给定风机盘管水系统相对供回水压差等参数的条件下，根据某时刻风机盘管水系统相对水量与通断阀总开启率的关系，确定了实际运行中相对水量的变化范围。
Abstract：
Based on the probability theory, calculates the total opening rate of on-off valves of the water system whose terminals are fan-coil units (FCUs) under the different room loads at a certain time. Using the weighted average of the opening rates of all FCUs calculates the total opening rate of the whole water system, whose error is less than 1%. Determines the variation range of the relative water volume based on the relationship between the relative water volume and the opening rate of the whole system at the time for the given properties including the relative pressure difference between supply and return water.
Keywords:on-off control, fan-coil, water system, opening rate, relative water volume