Abstract
The paper discusses the feasibility of installing renewable energy generation technologies on sea-going transport, taking into account the additional weight and power consumption. This study in based on the power management of a 26,198 tonne commercial chemical tanker. The management system would aim at reducing the number of generators as well as the power required from burning fossil fuels. After a process of elimination of potential technologies based on feasibility of the project and shipboard application, the work is focused towards photovoltaic and wind energy generation in combination with fossil fueled engines and Li-ion battery storage covering the higher energy density needs, and the intermittent nature of renewables. The network architecture is optimized in order to have the highest efficiency, and reduced system weight. The results show that successful management of the system can lead to reduction in generator requirement, and energy despite the weight of extra installations of photovoltaic and wind energy generation systems. By reducing the number of generators and allowing each remaining one to operate near their maximum power, the specific fuel consumption is improved, the efficiency is increased, resulting in significant fuel and cost saving, along with the mass of fuel to be carried on-board.
Highlights
With an annual growth of 3.3% in world fleet, the international shipping industry contributes 3% to global Green House Gas (GHG) emissions, and a staggering 85% of global demand for transport [1]
This paper focuses on the power generation of the wind turbines as opposed to propulsion
With multiple energy sources such as diesel engine, fuel cells, solar and wind turbines integrated into providing shipboard power, the presence of Energy Storage Systems (ESS) allows reliability and redundancy by collective usage and management of the sources
Summary
With an annual growth of 3.3% in world fleet, the international shipping industry contributes 3% to global Green House Gas (GHG) emissions, and a staggering 85% of global demand for transport [1]. With newer regulations on emission from marine transport coming into effect in certain parts of the world, the feasibility of harvesting renewable energy on-board marine vessels need to be carefully considered. Main Generator nature of the application, the additional weight penalty of renewable system installation, and thereby the extra energy expended, needs to be carefully studied and work is to be done in order to cover the gap between generation/storage technologies applied on-shore, against those that are suitable for portability and operate off-shore. The unpredictable nature of energy generation from renewable sources calls for its combined operation with Energy Storage Systems (ESS) in order to optimally manage power from each unit. Figure 1a: Block diagram of potential multi-source renewable energy ship powering network with DC grid system along with a control strategy to tie all the generation and storage devices in an effective arrangement
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More From: Transactions on Environment and Electrical Engineering
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