Study on characteristics of temperature field in cargo tank during heating of cargo oil

Abstract

In order to avoid the difficulties of unloading due to natural cooling and solidification of cargo oil in the process of shipping, the cargo oil is heated and insulated. In this paper, based on the heat transfer theory, and the fluid dynamics software FLUENT was used to establish a three-dimensional scale model to simulate the actual heating process of the cargo oil in the oil tank, and the change law of the temperature field of the cargo oil in the oil tank was calculated and analyzed.The results show that the temperature of cargo oil is approximately proportional to the heating time. During the heating process of the cargo oil, the rise of the temperature of the cargo oil leads to the increase of oil fluidity, and the oil above the heat source flows upward along the bulkhead, resulting in vortexes of different sizes. In the same heating time, the external temperature difference is 40 K, the oil temperature rise difference is 1.5 K. The variation of temperature field in the heating process of cargo oil is of engineering significance to improve heating efficiency, reduce operating cost and reduce environmental pollution.