摘要
通过建立变频离心式冷水机组的数学模型,并利用simulink软件对数学模型进行动态求解,从而实现对变频离心式冷水机组进行仿真.进而,通过仿真得出当回温度不变时冷水机组在不同相对流量下的性能参数,通过对这些参数分析得出当冷冻水相对流量减小时,机组的蒸发温度会相应的升高,机组的COP、冷凝温度以及蒸发器的传热系数会相应的降低.
The mathematic model of frequency conversion centrifugal chiller is established,and the Simulink is used to dynamically solve it,in order to implement the emulation of frequency conversim centrifugal chiller.Thereby,through simulating of chiller the data of chiller running at different flow rate and constant return temperature are got.By analysing those data the result can be found that when flow rate of freezing water reduces,the evaporating temperature will rise,COP,condensating temperature of chiller and heat transfer coefficient of evaporate will reduce.
出处
《北京建筑工程学院学报》
2011年第4期37-41,共5页
Journal of Beijing Institute of Civil Engineering and Architecture
关键词
变流量
变频
离心式冷水机组
variable flow rate
frequency conversion
centrifugal chiller
