Search

In recent years, with the opening of Arctic routes, the cargo oil heating technology of Arctic routes has become a growing concern. In the transportation process of cargo oil tankers, because the cargo oil has high viscosity, it needs to be heated in advance in order to prevent the oil products from cooling below the freezing point under the influence of external conditions, which will lead to the change of oil quality and the difficulty of discharge. However, excessive heating will lead to increased energy consumption and fuel waste, increased ship operating costs and increased marine environmental pollution. In this paper, COMSOL software is used to simulate the difference between cargo oil heating in Arctic low temperature environment and cargo oil heating at room temperature, and the most economical and energy saving heating method is found to reduce marine environmental pollution.

Using the physical model test method, under the first-order natural frequency condition, by analyzing the free surface waveform of the liquid in the tank under different viscosity and the sloshing impact pressure of the side wall, the influence rule of the viscosity change of the liquid cargo on the sloshing of the liquid is obtained. The results show that the lower the viscosity is, the more violent the liquid sloshing is.

Due to the increasing demand for shipping, the problem of the stability and safety of the tank structure caused by liquid sloshing has also been paid more attention. This paper builds a three-dimensional model and creates a numerical model based on the VOF method. The effect of the height of the vertical baffle on the sloshing characteristics such as waveform variation, flow field distribution, and sloshing pressure is studied. The results show that the higher the height of the vertical partition, the better the anti-sway effect.