Abstract
The projected increase in energy demand coupled with concerns regarding present reliance on fossil fuel and associated environmental concerns had led to increased interest in exploiting renewable energy sources. Among different renewable energy sources, tidal energy is unique and most suitable because of its predictable nature and capability to ensure supply security. Tide consists of both kinetic and potential energy which can be converted to electricity using well-proven technology. The potential energy of tides - the principal focus of the study, is stored due to rise and fall of the sea level. Head difference created due to tidal variation between basin side and sea side of a barrage stores potential energy which is converted into fast-moving water that rotates turbine and generates electricity. Bangladesh with its long coastline has promising prospects of tidal energy resource development. The study focuses on tidal energy resource exploration and exploitation along several competent locations of the Bengal coastline. Tidal records of flood and ebb tide of these locations are analyzed to calculate the potential energy. Finally, available potential techniques of energy extraction are evaluated for annually generated energy estimation. This study investigates the prospect and utilization of tidal energy concept and reviews the possibilities and opportunities of employment of the technology for sustainable development and climate change mitigation in context of Bangladesh.
Highlights
Energy is the pinnacle of human civilization
Tidal records of the aforementioned seven stations for the year 2014 were collected from different organizations that maintain and operate tidal gauges at those locations, i.e. Bangladesh Water Development Board (BWDB), Port Authority Chittagong (PAC), Bangladesh Navy Hydro-graphic and Oceanographic Centre (BNHOC)
PPaaaaaaaaaaaa = ηη × PPmmmmmm where Pmax is the maximum power generated by the tidal turbine for one-way power generation method and η is the coefficient of turbine efficiency which has been considered as 75% for this study
Summary
Energy is the pinnacle of human civilization. It is an indispensable input of survival for human. The improved energy consumption efficiency and conversion measures have to be adopted to minimize the loss of primary resources without risking the climate This has resulted in search of new energy generation methods with renewable sources which are promoted globally and offer a window of opportunity for expanding utilization of renewable energy technologies through research and development activities. Hossain et al [3] studied the potentiality at Sandwip Channel with an average tidal range of 4.6 m, 23 sluices and a barrage having the capacity to generate 16.49 MW of electricity daily. None of these studies have been implemented practically till date at least to the author’s knowledge. The aim here is to highlight the future prospects of energy production utilizing the tidal resources, and to project the approaches needed in the development phases of the technology; because tidal energy might be a vital, viable and reliable option of the future energy market
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