Abstract
Saint Martin Island is the only coral island and one of the well-known tourist spots in Bangladesh. Because of its geographic location, electricity cannot be supplied from the mainland through the electricity grid. Diesel generators and solar power are the only means of electricity generation presently available there. Surrounded by the sea, Saint Martin Island has the ideal conditions for wave energy extraction. In this research, numerical models have been developed using the Delft3D simulation software to determine the wave characteristics of different locations around Saint Martin Island. The results have been calibrated and validated against the data obtained from well-known data sources. The wave power densities have been calculated using the data obtained from the simulation models. The findings of the research show that the wave power density increases significantly from shallow water to deep water and a large amount of wave energy can be extracted during the summer and rainy monsoon seasons. The maximum hourly average value of wave power in 2016 has been determined to be 6.90 kW/m at location with a water depth of 27.80 m. Wave energy resources are also observed to be sufficiently stable with the coefficients of variation of wave power density less than 0.62, except for December, January, and May of that particular year. Moreover, the annual effective energies have been determined to be within the range of 36.57 to 57.28 MWh/m, which will be sufficient to meet the electricity requirement of the island communities.
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Article Highlights
• Research has been motivated by the abundant wave energy around the islands of Bangladesh.
• Saint Martin Island has been focused because of its ample suitability for energy extraction operations.
• Numerical models surrounding the Saint Martin Island have been simulated and wave characteristics have been analyzed to determine whether the resources are sufficient to diminish the energy crisis of the island communities.
Appendix
Appendix
This appendix contains some necessary information about the computational grid, bathymetry, and observation points. A computational grid surrounding the study region is generated using the Delft-3D RGFGRID program. The geometric coordinates of the computational grid are 89.5° E–93.5° E, 18.5° N–23.5° N, and the grid cell size is 2 km × 2 km (Figure A1). Figure A2 shows the depth at different locations of the computational grid, where negative values indicate elevations from the mean sea level and positive values indicate water depth from the mean sea level. The maximum water depth of the study region is 2.317 km. Figure A3 shows the positions of the observed locations.
Computational grid
Depth of the computational grid
Locations of the observation points around Saint Martin Island
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Das, M., Islam, M.R. & Shazeeb, T.I. Analysis of Wave Energy Resources Around the Saint Martin Island in Bangladesh. J. Marine. Sci. Appl. 20, 248–267 (2021). https://doi.org/10.1007/s11804-021-00208-z
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DOI: https://doi.org/10.1007/s11804-021-00208-z