Design and Development of Composite Wind Pumping System

• Main Authors: CHEN,GUAN-CHENG, 陳冠呈
• Other Authors: 張瑞榮
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/60441603411204206432

碩士 === 中華科技大學 === 機電光工程研究所碩士班 === 105 === This thesis presents design and development of composite wind pumping system. Combination of pump and wind energy can be applied for water pumping and irrigation by utilizing wind power to substitute electrical power, and then transforming to mechanical energy. This entire process not only helps to reduce energy consumption and loss, but also brings better efficiency without additional transformation. During the power transmission, maximum five times revolution can be achieved. Furthermore, pumping rotor is able to remain at high speed rotation, and create low pressure area to form suction affect. Water will be pressurized from suction into pumping rotor, and kinetic energy can be acquired though rotation of rotor. Then, water will be spun off at discharge and then delivered to the various locations though pipelines. In the theory analysis and experimental measurement, finite element analysis program ANSYS can be applied to analyze static reinforced structure. Also, bending failure testing for glass fiber blade will be combined. Meanwhile, approach of displacement control will be implemented to acquire relation curve between loading and displacement of blade, and then to testify accuracy of the analysis. In addition, spectrum percussion test which specified as non-destructive inspection will be applied. Also, modal analysis of ANASYS and identification of optimum elastic constants for composite material will be employed to find out natural frequency of blade and three optimum elastic constant parameters. However, test result shows that value between experiment and theory is really close. Moreover, blade element momentum method (BEM) can be applied to calculate axial force、tangential force、torque and overall mechanical energy performance for composite blade. As for experiment of performance evaluation, blower will be applied to drive simulated wind field, and it can fit with various lift height of outlet water pipes to conduct pumping test. By doing this, water flow, torque and performance for composite wind turbine rotor can be measured. Last, composite horizontal turbine blade and transmission system applied under high speed rotation with high efficiency.