| Summary: | 碩士 === 國立虎尾科技大學 === 機械與電腦輔助工程系碩士班 === 105 === Hydropower has significant meaning in energy acquisition and environmental impacts, and is considered the most obvious renewable energy source. With energy being increasingly difficult to obtain, the development and utilization of energy in rivers and irrigation canals are increasingly important. Therefore, this study aimed to develop a small scale hydroelectric generating unit. In particular, low water level hydropower was studied using an Archimedes screw, where a self-designed and manufactured low water level hydroelectric generating unit was employed to analyze electricity generated by a rotational screw driven by water flowing from flow channels with different inclination angles, with the power generation efficiency studied. Meanwhile the software of Design Expert was used to perform an experimental design for the low water level hydropower system, with screw blade inclination angle, number of blades, unequal pitch, flow channel inclination angle, etc. being the process factors, where the first order response surface methodology (RSM) was used to investigate the power. Finally, we conducted an optimization parameter analysis, which was experimentally verified by the self-developed low water level hydroelectric generating unit. The experimental results indicated that the said hydroelectric generating unit could achieve power generation efficiency of 50%. Also, the optimization results showed that, with the screw blade inclination angle, the unequal pitch ratio, and flow channel inclination angle equaling 13.30o, 1/1.16 and 22.52 o, respectively, a 3-screw bladed generating unit could generate power of 1.46826 mW, as opposed to 1.754mW measured experimentally, indicating an error of 20%.
|
|---|
