摘要
介绍了复杂水系统分析引擎(CAENAE-W)的基本原理、使用界面及验证结果。CAENAE-W基于面向对象法,对管网中的元件(管段、制冷机、水泵等)以面向对象的方式建立模型,将所有组成流体网络的元件定义为某类特定对象,根据初始化的边界条件和流体的流动状态,通过适当的摩擦系数计算公式校核各管段摩擦系数,对水力计算进行反复迭代,直至满足设定的精度要求。基于这一原理,开发了基于浏览器-服务器架构(B-S架构)的计算软件,并基于某实际系统与动态仿真软件Dymola进行了对比,结果表明,两者的计算结果偏差在1%以内,说明CAENAE-W具有较高的准确性和工程应用潜力。
Presents the basic principle,user interface,and verification results of the complex water system analysis engine(CAENAE-W).Based on the object.oriented method,CAENAE-W establishes object-oriented models for all components in a water system,including pipes,chillers and pumps,and defines all the components as a certain type of specific object.According to the initial boundary conditions and the fluid flow state,CAENAE-W calibrates the friction coefficient of all pipes through the appropriate friction coefficient calculation formula,and iterates the hydraulic calculation until the required solution accuracy is achieved.To validate its accuracy,develops a calculation software based on the BS architecture,and compares the CAENAE-W with the dynamic simulation software Dymola based on a specific case.The results show that the calculation error is less than 1%,indicating the high accuracy and engineering application potential of the CAENAE-W.
作者
王海
李铮伟
Wang Hai;Li Zhengwei(Tongii University,Shanghai,China)
出处
《暖通空调》
2021年第1期16-22,共7页
Heating Ventilating & Air Conditioning
基金
国家重点研发计划资助课题“既有居住建筑公共设施功能提升关键技术研究”(编号:2017YFC0702907)。
关键词
空调系统
水力分析
水力模型
面向对象
管道数值模拟
air conditioning system
hydraulic analysis
hydraulic model
object-oriented
pipeline numerical simulation
