A Study on Pipes Impedance Identification in a Realistic Heat-supply Network

摘要：

Heat-supply network is an important part of centralized heat-supply system, and the pipe impedance can affect heat-supply network at many sides. Based on matrix equation of spatial heat-supply network hydraulic calculation method and impedance identification equation, we study the pipe impedance problem in a realistic heat-supply network, which can be transformed into optimization function and solved by genetic algorithm (GA). The existence of impedance identification equation solutions is studied. In the realistic heat-supply network, we study double operational conditions in pipes impedance identification. From the identification results, we can conclude that multicondition is helpful to pipes impedance identification, especially user pipes. Because of the limitation of the realistic engineering, the number of operational conditions is only two. If the realistic engineering can supply more operational conditions, more accurate identification results will be obtained. The above processes are verified in realistic study and can be applied to other heat-supply network.

关键词： Realistic engineering Impedance identification GA Spatial heat-supply network

作者: Yongxin Liu Pinghua Zou Yonghu Kang

作者单位: School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin,P.R.China Harbin Huaneng District Heating Co.,Ltd.,Harbin,P.R.China

会议类型: 国际会议

会议名称: The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)

会议地点: 南京

会议语种:英文

页码: 291-297

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）