摘要
建立流化冰制冰系统的动态仿真模型,模拟系统输入参数变化时系统的响应特性。将换热器进行简化,分别采用移动边界法与分布参数法建立流化冰制冰系统冷凝器与冰晶器的数学模型。在Simulink仿真平台建立制冰系统的连接关系,与试验结果对比,验证模型的正确性后改变系统的输入参数,改变冷凝器冷却水温度与压缩机转速,分析制冰系统的响应特性。结果表明:冷却水温度变化相较于压缩机转速变化时制冰系统各参数变化较大,响应时间也较长。根据制冰系统的响应特性,为制冰系统及其各个部件的设计提供依据。
The dynamic simulation model of the ice making system was established,and the response characteristics of the system were simulated when the input parameters changed. The heat exchanger was simplified and the mathematical models of the condenser and evaporator were established by moving boundary method and distributed parameter method respectively. Built the connection of ice making system on Simulink simulation platform,the simulution results were compared to test results,which confirmed the correctness of model. Then the cooling water inlet temperature and speed of compressor were changed to analysis the response characteristics of ice making system. The results showed that compared with the effect of the speed change of the compressor of the ice making system,the cooling water temperature had more influence on that and the response time was longer. According to the response characteristics of ice making system,the basis for the design of ice making system and its components were provided.
作者
王泽普
李敏霞
王飞波
马一太
王磊
WANG Ze-pu;LI Min-xia;WANG Fei-bo;MA Yi-tai;WANG Lei(Key Laboratory of Efficient Utilization of Low and Medium Grade Energy,Tianjin University,Tianjin 300350,China)
出处
《化学工程》
CAS
CSCD
北大核心
2018年第8期21-27,共7页
Chemical Engineering(China)
关键词
流化冰
冰晶器
移动边界法
动态仿真
响应特性
slmrry ice
ice crystallizer
moving boundary method
dynamic simulation
response characteristics
