The Open Petroleum Engineering Journal

2014, 7 : 104-108
Published online 2014 December 31. DOI: 10.2174/1874834101407010104
Publisher ID: TOPEJ-7-104

Experimental and Theory Study of the Lossless Storage Law for Marine LNG Storage Tank Based on Modified Three-District Model

Yao Shouguang , Liang Ning , Ye Yong , Xiao Min and Jia Xinwang
School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang, 2120031, P.R. China, CSSC Shenghui Equipment CO, LTD. Zhangjiagang 215632, P.R. China.

ABSTRACT

In this paper a Modified Three-District Model was introduced to study the marine medium-sized horizontal LNG storage tank. The horizontal cryogenic tank evaporation rate and the lossless storage time with the liquid nitrogen were experimented. The maximum error of the pressure change and the lossless storage time obtained by the modified Three-District Model and by the experiment was observed to be only about 4.7%. So the applicability and reliability of the modified model for marine medium-sized horizontal LNG storage tank have been verified. Furthermore, based on the marine horizontal LNG storage tank with an effective volume of 250 m3 in a dual fuel-filled barge, the forecast analysis on the pressure change under different conditions of fullness rate, environmental temperature and heat leakage has also been discussed.

Keywords:

Calculation model, Cryogenic tank, Experiment research, Heat leakage, Pressure change, The lossless storage.