Experimental investigation of the sloshing influence on FLNG liquefaction system

With the exploitation of oil and gas resources in the ocean, the application of FLNG is more and more extensive. The FLNG ships will face with sloshing, which will exert an influence on the performance of the system. In order to study the effect of sloshing on the double mixed refrigerant liquefaction process, a sloshing platform of six degrees of freedom is built to perform the sloshing experiment of DMR system. The experimental on yaw, roll and pitch is carried out by measuring the temperature, pressure, flow and pressure difference at key nodes to analyze the effects of three different sloshing forms on the overall liquefaction performance and the equipment. It can be found that sloshing will reduce liquefaction performance and increase power consumption. The sloshing has an adverse effect on the distribution of fluid in the heat exchanger and reduces the heat transfer effect. In addition, the sloshing has a greater impact on the wound tube heat exchanger than the plate fin heat exchanger. The effect of the yaw is negligible and the effect of the roll is biggest. The research results can provide reference and guidance for offshore FLNG production.

Automated summary

This study analyzes the effects of three different sloshing forms on the liquefaction performance and equipment of DMR system through sloshing experiments. The results show that sloshing reduces liquefaction performance, increases power consumption, and has adverse effects on fluid distribution and heat transfer in the heat exchanger.