Analysis of the Possibility of Improving the Energy Efficiency of the LNG Shipment System from Large-Capacity Storage Facilities by Upgrading the Design of the Submersible Pump

• Published in: IOP conference series. Earth and environmental science 2022-02, Vol.988 (3), p.32056
• Main Authors: Davydenko, M I, Yu Baranov, A
• Format: Article
• Language: English
• Subjects: Electric drives; Energy efficiency; Hydraulic turbines; Liquefied natural gas; Modernization; Natural gas; Pumps; Storage facilities; Storage tanks; Structural members; Turbines; Upgrading
• ISSN: 1755-1307; 1755-1315
• DOI: 10.1088/1755-1315/988/3/032056

The purpose of the research is to determine the most relevant way to improve the energy efficiency of the liquefied natural gas (LNG) shipment system from large-capacity storage facilities. The analysis of existing LNG shipment systems from storage tanks is carried out to identify critical (emergency) elements of the system that are subject to modernization, and possible options for upgrading structural elements. The work of the LNG shipment system from storage tanks is analysed, the main characteristics of the system are described. Based on the study, a method for improving the energy efficiency of the shipment system was determined – modernization of the design of the LNG submersible pump (LNGSP). The main types of submersible pumps for LNG, as well as types of drives, were studied in order to choose the most optimal option for upgrading CNG shipping systems. The replacement of the electric drive with a hydraulic turbine as part of the LNGSP was chosen as an upgrade. The possible modes of operation of the pumping unit after modernization are analysed. A mathematical description of the main operating modes has been compiled. In the future, it is necessary to calculate the hydraulic turbine in order to determine its geometric parameters.