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基于壅塞理论的CNG加气管流量计算分析
引用本文:王磊,田贯三,丁国玉,张明光.基于壅塞理论的CNG加气管流量计算分析[J].管道技术与设备,2011(1):9-11,34.
作者姓名:王磊  田贯三  丁国玉  张明光
作者单位:山东建筑大学热能工程学院;北京市城市规划设计研究院;
基金项目:国家科技支撑计划项目(2006BAJ03B02)
摘    要:为了计算CNG加气系统的高压胶管的流量,以气体动力学为基础,建立等截面一维定常绝热摩擦流动的数学模型.利用VC+ +语言编制界面计算程序对模型进行编程求解,对壅塞状态和非壅塞状态下流量以及出口压力进行计算和拟合.当天然气汽车储瓶内的压力小于临界压力时,加气流量最大,且与胶管两端的压差无关,并计算出最大流量与胶管管长的关...

关 键 词:壅塞  CNG加气站  高压胶管  马赫数

The Calculation &Analysis of Mass Flow of the Hose in CNG Refueling System Based on the Chocked Flow
WANG Lei,TIAN Guan-san,DING Guo-yu,ZHANG Ming-guang.The Calculation &Analysis of Mass Flow of the Hose in CNG Refueling System Based on the Chocked Flow[J].Pipeline Technique and Equipment,2011(1):9-11,34.
Authors:WANG Lei  TIAN Guan-san  DING Guo-yu  ZHANG Ming-guang
Institution:WANG Lei1,TIAN Guan-san1,DING Guo-yu2,ZHANG Ming-guang1 (1.School of Thermal Energy Engineering,Shandong Jianzhu University,Jinan 250101,China,2.Beijing Municipal Institute of City Planning & Design,Beijing 100045,China)
Abstract:In order to calculate the mass flow of CNG refueling system,a mathematical model of one-dimensional unsteady adiabatic friction flow has been established and based on gas dynamics.Visual C++ programming language is used to solve the model,as a result,the region of choked flow and unchoked flow is established.When the packet pressure is less than the critical pressure,the chocked mass flow is obtained.An analysis for the gas in the 60-meter-long cross section is taken to fit the relationship between the outl...
Keywords:chocked flow  CNG station  highpressure hose  math number  
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