LNG燃料汽车储罐自增压系统仿真计算与分析

doi:10.11949/j.issn.0438-1157.20181159

摘要/Abstract

摘要：

研究分析液化天然气（LNG）汽车自增压系统工作段储罐内的压力和温度的动态变化，利用仿真软件SindaFluint，对经典自增压过程进行了基于集总参数法的建模与计算分析，研究不同工况以及不同环境温度下储罐内的压力和温度变化，分析结果表明，在自增压过程中，储罐内的压力波动频率由快变慢，随着增压过程的继续，压力渐趋平稳，气相温度随着压力同步波动，而液相主体温度基本保持112.5 K不变。车速越大，储罐内压力波动频率越大，而环境的漏热对自增压系统的影响甚微。

Abstract:

Analyse the dynamic change of pressure and temperature in the working tank of the self-pressurizing system of liquefied natural gas (LNG) vehicle, using the simulation software SindaFluint to model and calculate the classical self-pressurization process based on lumped parameter method. The variation of pressure and temperature in the tank at different speeds and ambient temperatures is studied. The results show that the pressure fluctuation frequency in the tank changes from fast to slow in the process of self-pressurization, and the pressure becomes more and more stable with the continuation of the pressurization process. The temperature of the gas phase fluctuates synchronously with the pressure, while the main temperature of the liquid phase remains basically unchanged at 112.5 K. The higher the speed, the greater the frequency of pressure fluctuation in the tank. However, the environmental heat leakage has little effect on the self-charging system.

中图分类号:

TB658

房萍, 陈煜. LNG燃料汽车储罐自增压系统仿真计算与分析[J]. 化工学报, 2018, 69(S2): 309-315.

FANG Ping, CHEN Yu. Simulation calculation and analysis on self-pressurization system of LNG vehicle storage tank[J]. CIESC Journal, 2018, 69(S2): 309-315.

参考文献 30

[1]	马小红, 陈叔平, 任永平.LNG车载气瓶[J].煤气与热力, 2011, 31(9):B14-B18. MA X H, CHEN S P, REN Y P.LNG gas cylinder[J].Gas and Heat, 2011, 31(9):B14-B18.
[2]	SATISH K, HYOUK T K, KWANG H C, et al.LNG:an eco-friendly cryogenic fuel for sustainable development[J].Applied Energy, 2016, 88(12):4264-4273.
[3]	徐文东, 温永刚, 陈运文.LNG汽车技术发展及其推广应用前景[J].石油与天然气化工, 2013, 42(3):257-260.XU W D, WEN Y G, CHEN Y W.The development of LNG automobile technology and its application prospect[J].Petroleum and Natural Gas Chemical Industry, 2013, 42(3):257-260.
[4]	文代志, 陆军.液化天然气汽车综述[J].装备制造技术, 2012, 36(7):120-123.WEN D Z, LU J.Overview of liquefied natural gas vehicles[J].Equipment Manufacturing Technology, 2012, 36(7):120-123.
[5]	金树峰, 陈叔平, 姚淑婷.车载LNG气瓶稳定供气及自增压气化量分析[J].制冷技术, 2013, 41(12):59-62.JING S F, CHEN S P, YAO S T.Analysis on stable gas supply and self-pressurized gasification of vehicle LNG cylinders[J].Refrigeration Technology, 2013, 41(12):59-62.
[6]	顾安忠.液化天然气技术[M].北京:机械工业出版社, 2003:45.GU A Z.Liquefied Natural Gas Technology[M].Beijing:Mechanical Industry Press, 2003:45.
[7]	KRISHNAPRAKAS C K, BADARI N K.Heat transfer correlations for multilayer insulation systems[J].Cryogenics, 2000, 40(7):431-435.
[8]	李泽强, 司景萍.LNG汽车的应用分析及推广建议[J].公路与汽运, 2015, 57(3):21-23.LI Z Q, SI J P.Application analysis and popularizing suggestion of LNG automobile[J].Highway and Steam Transportation, 2015, 57(3):21-23.
[9]	陈先亮.基于流固耦合的车用蓄水瓶动力学分析[D].重庆:重庆大学, 2014.CHEN X L.Dynamic analysis of vehicle water storage bottle based on fluid-structure coupling[D].Chongqing:Chongqing University, 2014.
[10]	CHRISTOVASILIS I P.Seismic analysis of liquefied natural gas tanks[D].Buffalo:State University of New York,2006.
[11]	CHO J R, SONG J M, LEE J K.Finite element techniques for the free-vibration and seismic analysis of liquid-storage tanks[J].Finite Elements in Analysis and Design, 2001, 37(6):467-483.
[12]	崔利富.大型LNG储罐基础隔震与晃动控制研究[D].大连:大连海事大学, 2012.CUI L F.Study on sloshing control of LNG tank[D].Dalian:Dalian Maritime University, 2012.
[13]	SONG Y.Thermodynamic analysis of a transcritical CO2 poper cycle driven by solar energy with liquid natural gas as its heat sink[J].Applied Energy, 2012, 92(1):194-203.
[14]	OLIVETI G A.Ration thermodynamic use of liquid nature gas in a waste incinerator plant[J].Applied Thermal Engineering, 2012, 35(2):124-138.
[15]	姚建, 侯化坤.液化天然气低温液体汽车罐车结构特点及定期检验问题讨论[J].中国特种设备安全, 2017, 33(1):41-45.YAO J, HOU H K.Discussion on structural characteristics and periodic inspection of liquefied natural gas cryogenic liquid vehicle tank car[J].Safety of Special Equipment in China, 2017, 33(1):41-45.
[16]	白洁玮.液化天然气(LNG)汽车冷能和尾气余热的温差发电系统研究[D].太原:太原理工大学, 2015.BAI J W.Research on temperature difference power generation system of LNG (LNG) vehicle with cold energy and tail gas waste heat[D].Taiyuan:Taiyuan University of Technology, 2015.
[17]	刘彦辉.LNG/柴油双燃料发动机性能及排放研究[D].西安:长安大学, 2013.LIU L H.Study on performance and emission of LNG/diesel dual fuel engine[D].Xi'an:Chang'an University, 2013.
[18]	VELETSOS A S, TANG Y.Rocking response of liquid storage tanks[J].Journal of Engineering Mechanics, 2009, 113(11):174-179.
[19]	叶莹, 汪顺华, 杨晓东.LNG燃料汽车储罐自增压及供气特性[J].低温工程, 2009, 13(4):55-59.YE Y, WANG S H, YANG X D.Self pressurization and gas supply characteristics of fuel car storage tank[J].Cryogenic Engineering, 2009, 13(4):55-59.
[20]	BOUKEFFA D, BOUMAZAM.Experimental and numerical analysis of heat losses in a liquid nitrogen cryostat[J].Applied Thermal Engineering, 2001, 21(9):967-975.
[21]	萧芦.天然气汽车和加气站数量及天然气消费量分国别统计[J].国际石油经济, 2015, 49(6):94-96.XIAO L.Number of natural gas vehicles and filling stations and natural gas consumption by country[J].International Petroleum Economy, 2015, 49(6):94-96.
[22]	DASLM R, GULATI A.Comparative evolution of the performance characteristics of a spark ignition engine using hydrogen and comp-ressed natural gas as alternative fuels[J].International Journal of Hydrogen Energy, 2000, 25(3):783-793.
[23]	王振良, 李臻.国内外大型液化天然气储罐发展现状[J].河南化工, 2010, 27(5):2-3.WANG Z L, LI Z.Development status of large liquefied natural gas tanks at home and abroad[J].Henan Chemical Industry, 2010, 27(5):2-3.
[24]	熊敏瑞.论我国能源结构调整与能源法的应对策略[J].生态经济, 2014, 30(3):103-104.XIONG M R.On the adjustment of energy structure and the coun-termeasures of energy law in China[J].Ecological Economy, 2014, 30(3):103-104.
[25]	张德福, 田野.汽车用LNG瓶排气及回收试验研究[J].客车技术与研究, 2011, 16(1):49-51.ZHANG D F, TIAN Y.Experimental study on exhaust and recovery of LNG bottle for automobile[J].Bus Technology and Research, 2011,16(1):49-51.
[26]	韩涛, 祁增禄, 康思宇.LNG汽车气瓶的技术要求和工作原理[J].汽车实用技术, 2017, 16(67):192-193.HAN T, QI Z L, KANG S Y.Technical requirements and working principle of LNG automobile cylinder[J].Automobile Practical Technology, 2017, 16(67):192-193.
[27]	BERGMAN T L, INCROPERA F P, LAVINE A S.Fundamentals of Heat and Mass Transfer[M].New York:John Wiley & Sons, 2017.
[28]	张清.汽车用液化天然气气瓶[J].石油化工设备技术, 2012, 33(3):5-8.ZAHNG Q.Liquefied natural gas cylinders for automobiles[J].Petrochemical Equipment Technology, 2012, 33(3):5-8.
[29]	高忠杰.LNG储罐优化数学模型及其应用[J].油气储运, 2012, 31(8):594-596.GAO Z J.Optimization mathematical model of LNG tank and its application[J].Oil and Gas Storage and Transportation, 2012, 31(8):594-596.
[30]	金树峰.LNG汽车燃料系统与空调冷能利用[D].兰州:兰州理工大学, 2014.JING S F.LNG Automotive fuel system and air-conditioning cold use[D].Lanzhou:Lanzhou University of Technology, 2014.