Analysis of Temperature and Pressure Changes in Liquefied Natural Gas (LNG) Cryogenic Tanks

doi:10.1016/j.cryogenics.2004.03.020

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	Analysis of Temperature and Pressure Changes in Liquefied Natural Gas (LNG) Cryogenic Tanks
	Chen QS(陈启生); Wegrzyn J; Prasad V; Wegrzyn, J (reprint author), Brookhaven Natl Lab, Energy Sci & Technol Dept, Upton, NY 11973 USA.
发表期刊	Cryogenics
	2004
卷号	44 期号:10 页码:701-709
ISSN	0011-2275
摘要	Liquefied natural gas (LNG) is being developed as a transportation fuel for heavy vehicles such as trucks and transit buses, to lessen the dependency on oil and to reduce greenhouse gas emissions. The LNG stations are properly designed to prevent the venting of natural gas (NG) from LNG tanks, which can cause evaporative greenhouse gas emissions and result in fluctuations of fuel flow and changes of fuel composition. Boil-off is caused by the heat added into the LNG fuel during the storage and fueling. Heat can leak into the LNG fuel through the shell of tank during the storage and through hoses and dispensers during the fueling. Gas from tanks onboard vehicles, when returned to LNG tanks, can add additional heat into the LNG fuel. A thermodynamic and heat transfer model has been developed to analyze different mechanisms of heat leak into the LNG fuel. The evolving of properties and compositions of LNG fuel inside LNG tanks is simulated. The effect of a number of buses fueled each day on the possible total fuel loss rate has been analyzed. It is found that by increasing the number of buses, fueled each day, the total fuel loss rate can be reduced significantly. It is proposed that an electric generator be used to consume the boil-off gas or a liquefier be used to re-liquefy the boiloff gas to reduce the tank pressure and eliminate fuel losses. These approaches can prevent boil-off of natural gas emissions, and reduce the costs of LNG as transportation fuel.
学科领域	力学
DOI	10.1016/j.cryogenics.2004.03.020
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000222787900004
WOS研究方向	Thermodynamics ; Physics
WOS类目	Thermodynamics ; Physics, Applied
引用统计	被引频次：97[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/17172
专题	力学所知识产出(1956-2008)
通讯作者	Wegrzyn, J (reprint author), Brookhaven Natl Lab, Energy Sci & Technol Dept, Upton, NY 11973 USA.
推荐引用方式 GB/T 7714	Chen QS,Wegrzyn J,Prasad V,et al. Analysis of Temperature and Pressure Changes in Liquefied Natural Gas (LNG) Cryogenic Tanks[J]. Cryogenics,2004,44,10,:701-709.
APA	陈启生,Wegrzyn J,Prasad V,&Wegrzyn, J .(2004).Analysis of Temperature and Pressure Changes in Liquefied Natural Gas (LNG) Cryogenic Tanks.Cryogenics,44(10),701-709.
MLA	陈启生,et al."Analysis of Temperature and Pressure Changes in Liquefied Natural Gas (LNG) Cryogenic Tanks".Cryogenics 44.10(2004):701-709.

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