چكيده به لاتين
Abstract:
Energy production from fossil energy sources causes environmental pollution, and their price is influenced by both political and economic variables. Wind power, as a renewable energy source with no emissions, represents the better alternative for electricity generation with no environmental pollution. The aim of this study is to develop a model for wave and wind hybrid energy system. The idea of adding a wave-energy device to a floating or a fixed support structure of a wind turbine increases the stability. In this study, daily wind speed data received from the meteorological stations was used. By using data collected from wind speed on the ground and modifying the data using a mathematical model, the data of wind speed at sea was calculated. By using this data, the potential of using wind and wave energy in sea was predicted. Then, using the mathematical model, wind-wave hybrid system components include: wind turbine, wave converter, foundation and also the system costs and the cost recovery period were determined. In this study, the wave energy converter selected for hybrid device is Wavestar prototype which was combined with a wind turbine. In order to design a wind-wave hybrid system a computer code was developed in the programming environment MATLAB. The engineering and economic optimization of system, costs and prices of system components were calculated by program simulation. The results was obtained from the designed hybrid system for two regions: the first is Syria (Latakia) on the coast of the Mediterranean Sea and the second is United Kingdom (Hampstead) located close to the North Sea. The results showed that the annual average wind speed and the annual average wave height for the city of Hempstead was more than that calculated for the city of Latakia. Also, The results showed that the annual energy production from hybrid wind-wave device in the North Sea is 64.3% more than its value in the Mediterranean Sea. As a result, the cost of energy (COE) in dollars per kilowatt-hour calculated for the United Kingdom was less than its value for Syria, and the production of hybrid system energy technology can reach commercialization because the cost of energy production is reduced.
Keywords: Hybrid system, Offshore wind energy, Wave energy, Wind turbine, Wave energy converter.
