In the past ten years, the R&D of UAV (Unmanned Aerial Vehicle) is very popular and has the trend to replacing with the manned aerial vehicle due to its low-cost and high-mobility. According to the specifications, this project completes special contour and function of a mini-UAV design and passes the strict fabrication, prototyping, and aerial test processes. With the advantages of long flight endurance, speedy assembly/disassembly, simply contour, and portable, the developed mini-UAV has the capabilities of bungee launch and parachute recovery. Thus, it makes much progress in Taiwan’s mini-UAV area.
The purpose of this study is to investigate the parameters that affect the cost-effectiveness of wind farm land use and wind energy harvesting efficiency. The research team applies two reverse rotating vertical-axis wind turbines (VAWTs) to explore how wind speed and various distances of wind turbines affect the operation efficiency of a prospective wind farm. A data acquisition system has been constructed to record the wind speed along with a variety of wind turbine output data in a wind tunnel test in order to identify the layout that help to achieve the best wind harvesting efficiency. The layout is then applied in the field test for further observation and data collection. The experiment results show 1) when two VAWTs are moved toward each other (from 300 cm to 180 cm), both turbines observe performance gain, and 2) when two VAWTs are set at a distance of 1.5 to 2.0 times the turbine diameter, the performance of both units increases by about 11% over the efficiency obtainable by their stand-alone counterpart.
Belongs to sub-tropical zone marine climate, the Matsu islands are strongly affected by ocean monsoon and have plentiful wind power with average speed of 4.1-6.3 m/s. According to experiences of vertical-axis wind turbine, MDU has granted the bid of Matsu government’s “Low-Carbon Emission LOHAS (Lifestyles of Health And Sustainability)-type Vacation Islands” project to install two 4kW such generators: all composite patented blades’ design; new design and fabricated generators; remote monitor and merging network. The six-month test after completion of project shows the good efficiency of the whole wind-power generator system, and thus meets the custom’s specifications and also verifies the superiority of our wind turbines.
Emerging markets need small sized VAWT (vertical-axis wind turbine) for residential energy supplement. MingDao university wind power R&D team has developed a 4kW VAWT system is response to this need. The development items include innovative blades, generator, power control and mast design. The newly developped 4kW VAWT system demonstrates superior performance. The average VAWT efficiency is 0.31 and the average Cp is 0.39. The preliminary results showed this approach has potential for future applications.
This project evaluates, gathers statistics, and investigates current situations of renewable energy (including wind power, solar power, and ocean energy) in Matsu areas for environment sustainable use. The areas have abundant wind power potential, and the average wind speeds over 4m/s fittable for wind power system. Matsu areas have abundant solar energy (yearly average Solar Radiation >3,600 MJ/m2) suitable for the development of solar water heaters and solar power. For the ocean energy a swamp in Nangan forms a tidal reservoir can be applied with yearly generation time about 4,000 hours, then the estimated yearly electric power is 64k kW-hour.
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