RESEARCH ARTICLE


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



Yao Shouguang1, *, Liang Ning1, Ye Yong1, Xiao Min1, Jia Xinwang1
1 School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang, 2120031, P.R.
2 CSSC Shenghui Equipment CO, LTD. Zhangjiagang 215632, P.R. China.


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© Shouguang et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the 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. E-mail: zjyaosg@126.com


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 m 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.