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According to the detailed planning of Southeast seaport group up with an orientation to 2030, Ba Ria -Vung Tau seaport is an international gateway (type IA), acting as an international transshipment port where commercial, industrial services are developed and facilitated in goods import and export activities. However, one of the significant obstacles to the development of the Ba Ria-Vung Tau port service industry is the lack of synchronous infrastructure of the entire port system. The leading causes of these obstacles are due to inappropriate design and investment in anchoring and lack of in-depth studies on the specific characteristics of the flow through the anchorage area. This is a big problem, because the tankers often have low freeboard, mainly affecting the flow in the mooring area. Therefore, the focus on studying the impact of the flow in the anchored area of Vung Tau on oil tankers will contribute to the maritime practice of the anchoring areas in general and in Vung Tau in particular. In this paper, the authors will focus on empirical research on an experimental model that is constructed by the uniform method to determine the anchor-cable tension of ship anchorages with different loading modes at the assumed flow rate in the anchoring areas in Vung Tau. The results obtained from experimental research and simulation by numerical methods are compared and evaluated to develop an empirical and reliable formula for anchor-cable tension with oil tankers in Vung Tau anchoring area.

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Due to recent emission-associated regulations imposed on marine fuel, ship owners have been forced to seek alternate fuels, in order to meet the new limits. The aim of achieving low-carbon shipping by the year 2050, has meant that alternative marine fuels, as well as various technological and operational initiatives, need to be taken into account. This article evaluates and examines recent clean fuels and novel clean technologies for vessels. The alternative fuels are classified as low-carbon fuels, carbon-free fuels, and carbon neutral fuels, based on their properties. Fuel properties, the status of technological development, and existing challenges are also summarised in this paper. Furthermore, researchers have also investigated energy-saving devices and discovered that zero-carbon and virtually zero-carbon clean fuels, together with clean production, might play an important part in shipping, despite the commercial impracticability of existing costs and infrastructure. More interestingly, the transition to marine fuel is known to be a lengthy process; thus, early consensus-building, as well as action-adoption, in the maritime community is critical for meeting the expectations and aims of sustainable marine transportation.