长管拖车用大容积环缠绕复合材料气瓶充气及冷却过程温度变化的数值模拟研究

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (6): 23-27.

长管拖车用大容积环缠绕复合材料气瓶充气及冷却过程温度变化的数值模拟研究

刘奉宣¹,邓贵德^2*,梁海峰¹,吉方²

1.太原理工大学化学化工学院,太原030024;
2.中国特种设备检测研究院,北京100013

收稿日期:2016-11-30 出版日期:2017-06-28 发布日期:2017-06-28
通讯作者: 邓贵德(1982-),男,博士,高级工程师,主要从事特种设备安全方面的研究,dengguide@163.com。
作者简介:刘奉宣(1991-),男,硕士研究生,主要从事为复合材料压力容器方面的研究。
基金资助:
国家公益性行业(质检)科研专项项目(201210020);国家重点研发计划“公共安全风险防控与应急技术装备”重点专项
项目(2016YFC0801902)

NUMERICAL SIMULATION ON THE TEMPERATURE CHANGE OF LARGE CAPACITY HOOP-WRAPPED COMPOSITE CYLINDERS FOR TUBE TRAILERS DURING REFUELING AND NATURAL COOLING

LIU Feng-xuan¹, DENG Gui-de^2*, LIANG Hai-feng¹, JI Fang²

1.School of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
2.China Special Equipment Inspection and Research Institute, Beijing 100013, China

Received:2016-11-30 Online:2017-06-28 Published:2017-06-28

摘要/Abstract

摘要： 建立了压缩天然气车(CNGV)用大容积环缠绕复合材料气瓶的充气温升数值模型,通过计算流体力学软件Fluent17.1进行数值仿真,模拟1800 s充满20 MPa、2500 L的CNG气瓶的填充过程以及5400s的静态冷却过程。详细介绍了该有限元模型的设置过程,重点分析了气瓶内气体流向、温度分布,以及充气及冷却过程的壁面温度状况,模拟结果表明,大容积气瓶的高温区域集中在瓶尾,该工况下的充气不会使气瓶壁面温度超过许用温度。

关键词: 复合材料气瓶, 环缠绕气瓶, 充气, 温度变化, 数值模拟

Abstract: A numerical model was established for the predication of the temperature rise of Large Capacity Fully-wrapped Composite Cylinder on Compressed Natural Gas Vehicles (CNGV) during its refueling and cooling. A CNG tank is regarded as an object of study, in which working cubage is 2500 L and working pressure is 20 MPa. Computational fluid dynamics (CFD) software Fluent 17.1 was applied to simulate the refueling process of 1800 s and the static cooling process of 5400 s. The setting process of the Finite Element Method of this simulation was described in detail. The flowing direction of gas, temperature distribution in the cylinder and the temperature patterns of the wall during its filling and cooling were emphatically analyzed. The simulation results show that high temperature is concentrated on the tail of the vessel, and the temperature of the wall is below the allowable temperature during all procedure in this simulation.

Key words: composite cylinder, fully-wrapped cylinders, filling, temperature change, numerical simulation

中图分类号:

TB332
X933.4

刘奉宣,邓贵德,梁海峰,吉方. 长管拖车用大容积环缠绕复合材料气瓶充气及冷却过程温度变化的数值模拟研究[J]. 玻璃钢/复合材料, 2017, 0(6): 23-27.

LIU Feng-xuan, DENG Gui-de, LIANG Hai-feng, JI Fang. NUMERICAL SIMULATION ON THE TEMPERATURE CHANGE OF LARGE CAPACITY HOOP-WRAPPED COMPOSITE CYLINDERS FOR TUBE TRAILERS DURING REFUELING AND NATURAL COOLING[J]. Fiber Reinforced Plastics/Composites, 2017, 0(6): 23-27.

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