Study on Calculation of Liquid Level And Storage of Tanks for LNG-fueled Vessels

2017 International Conference on Advanced Environmental Engineering

生态环境科学

Li, Kun^1 ; Wang, Guoqing^2 ; Liu, Chang^1

China Waterborne Transport Research Institute, Beijing, China^1

Wuhan Jiao da New Energy Technology Co. Ltd, Wuhan, China^2

关键词: Different pressures;    Differential pressures;    Effects of temperature;    Energy consumption levels;    Safety control systems;    Safety operations;    Volume integrations;    Waterborne transport;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/111/1/012030/pdf
DOI  :  10.1088/1755-1315/111/1/012030

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

As the ongoing development of the application of LNG as a clean energy in waterborne transport industry, the fleet scale of LNG-fueled vessels enlarged and the safety operation has attracted more attention in the industry. Especially the accurate detection of liquid level of LNG tanks is regarded as an important issue to ensure a safe and stable operation of LNG-fueled ships and a key parameter to keep the proper functioning of marine fuel storage system, supply system and safety control system. At present, detection of LNG tank liquid level mainly adopts differential pressure detection method. Liquid level condition could be found from the liquid level reference tables. However in practice, since LNG-fueled vessels are generally not in a stationary state, liquid state within the LNG tanks will constantly change, the detection of storage of tanks only by reference to the tables will cause deviation to some extent. By analyzing the temperature under different pressure, the effects of temperature change on density and volume integration calculation, a method of calculating the liquid level and storage of LNG tanks is put forward making the calculation of liquid level and actual storage of LNG tanks more accurately and providing a more reliable basis for the calculation of energy consumption level and operation economy for LNG-fueled vessels.